./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 f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--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-?-f4b24e3 [2022-07-14 00:31:42,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:31:42,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:31:42,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:31:42,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:31:42,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:31:42,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:31:42,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:31:42,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:31:42,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:31:42,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:31:42,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:31:42,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:31:42,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:31:42,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:31:42,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:31:42,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:31:42,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:31:42,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:31:42,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:31:42,835 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:31:42,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:31:42,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:31:42,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:31:42,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:31:42,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:31:42,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:31:42,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:31:42,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:31:42,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:31:42,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:31:42,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:31:42,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:31:42,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:31:42,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:31:42,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:31:42,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:31:42,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:31:42,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:31:42,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:31:42,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:31:42,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:31:42,860 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:31:42,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:31:42,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:31:42,877 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:31:42,877 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:31:42,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:31:42,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:31:42,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:31:42,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:31:42,881 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:31:42,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:31:42,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:31:42,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:31:42,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:31:42,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:31:42,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:31:42,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:31:42,883 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:31:42,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:31:42,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:31:42,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:31:42,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:31:42,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:31:42,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:31:42,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:31:42,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:31:42,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:31:42,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:31:42,886 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:31:42,886 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:31:42,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:31:42,887 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf [2022-07-14 00:31:43,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:31:43,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:31:43,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:31:43,090 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:31:43,090 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:31:43,091 INFO L432 ainManager$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 [2022-07-14 00:31:43,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5a5e5ed2/96c8d81ffa74404b961c5f3550f3f06c/FLAGac8b78456 [2022-07-14 00:31:43,712 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:31:43,712 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 [2022-07-14 00:31:43,741 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5a5e5ed2/96c8d81ffa74404b961c5f3550f3f06c/FLAGac8b78456 [2022-07-14 00:31:44,127 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5a5e5ed2/96c8d81ffa74404b961c5f3550f3f06c [2022-07-14 00:31:44,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:31:44,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:31:44,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:31:44,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:31:44,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:31:44,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:31:44" (1/1) ... [2022-07-14 00:31:44,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb3bc61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:31:44, skipping insertion in model container [2022-07-14 00:31:44,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:31:44" (1/1) ... [2022-07-14 00:31:44,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:31:44,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:31:44,642 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2022-07-14 00:31:44,643 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] [2022-07-14 00:31:44,810 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] [2022-07-14 00:31:45,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:31:45,485 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:31:45,584 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2022-07-14 00:31:45,586 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] [2022-07-14 00:31:45,602 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] [2022-07-14 00:31:45,717 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) [2022-07-14 00:31:45,726 INFO L158 Benchmark]: Toolchain (without parser) took 1594.67ms. Allocated memory was 102.8MB in the beginning and 180.4MB in the end (delta: 77.6MB). Free memory was 58.4MB in the beginning and 76.7MB in the end (delta: -18.2MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. [2022-07-14 00:31:45,727 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 00:31:45,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1593.08ms. Allocated memory was 102.8MB in the beginning and 180.4MB in the end (delta: 77.6MB). Free memory was 58.2MB in the beginning and 76.7MB in the end (delta: -18.4MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. [2022-07-14 00:31:45,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1593.08ms. Allocated memory was 102.8MB in the beginning and 180.4MB in the end (delta: 77.6MB). Free memory was 58.2MB in the beginning and 76.7MB in the end (delta: -18.4MB). Peak memory consumption was 56.7MB. 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-?-f4b24e3 [2022-07-14 00:31:47,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:31:47,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:31:47,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:31:47,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:31:47,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:31:47,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:31:47,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:31:47,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:31:47,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:31:47,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:31:47,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:31:47,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:31:47,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:31:47,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:31:47,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:31:47,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:31:47,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:31:47,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:31:47,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:31:47,517 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:31:47,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:31:47,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:31:47,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:31:47,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:31:47,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:31:47,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:31:47,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:31:47,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:31:47,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:31:47,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:31:47,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:31:47,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:31:47,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:31:47,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:31:47,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:31:47,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:31:47,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:31:47,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:31:47,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:31:47,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:31:47,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:31:47,536 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 00:31:47,557 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:31:47,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:31:47,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:31:47,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:31:47,561 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:31:47,562 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:31:47,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:31:47,562 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:31:47,562 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:31:47,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:31:47,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:31:47,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:31:47,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:31:47,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:31:47,564 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 00:31:47,564 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 00:31:47,564 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 00:31:47,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:31:47,564 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:31:47,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:31:47,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:31:47,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:31:47,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:31:47,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:31:47,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:31:47,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:31:47,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:31:47,566 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 00:31:47,566 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 00:31:47,566 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:31:47,567 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:31:47,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:31:47,567 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 00:31:47,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf [2022-07-14 00:31:47,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:31:47,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:31:47,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:31:47,865 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:31:47,865 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:31:47,867 INFO L432 ainManager$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 [2022-07-14 00:31:47,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56a27b896/898ea7192f334020a7a02c6f43911239/FLAG177ddb6f9 [2022-07-14 00:31:48,617 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:31:48,617 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 [2022-07-14 00:31:48,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56a27b896/898ea7192f334020a7a02c6f43911239/FLAG177ddb6f9 [2022-07-14 00:31:48,905 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56a27b896/898ea7192f334020a7a02c6f43911239 [2022-07-14 00:31:48,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:31:48,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:31:48,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:31:48,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:31:48,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:31:48,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:31:48" (1/1) ... [2022-07-14 00:31:48,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61d53f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:31:48, skipping insertion in model container [2022-07-14 00:31:48,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:31:48" (1/1) ... [2022-07-14 00:31:48,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:31:49,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:31:49,454 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2022-07-14 00:31:49,454 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] [2022-07-14 00:31:49,846 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] [2022-07-14 00:31:50,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:31:50,469 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 00:31:50,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:31:50,569 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2022-07-14 00:31:50,569 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] [2022-07-14 00:31:50,584 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] [2022-07-14 00:31:50,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:31:50,751 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:31:50,836 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2022-07-14 00:31:50,836 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] [2022-07-14 00:31:50,840 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] [2022-07-14 00:31:50,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:31:51,058 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:31:51,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:31:51 WrapperNode [2022-07-14 00:31:51,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:31:51,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:31:51,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:31:51,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:31:51,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:31:51" (1/1) ... [2022-07-14 00:31:51,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:31:51" (1/1) ... [2022-07-14 00:31:51,313 INFO L137 Inliner]: procedures = 290, calls = 1587, calls flagged for inlining = 160, calls inlined = 157, statements flattened = 4216 [2022-07-14 00:31:51,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:31:51,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:31:51,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:31:51,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:31:51,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:31:51" (1/1) ... [2022-07-14 00:31:51,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:31:51" (1/1) ... [2022-07-14 00:31:51,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:31:51" (1/1) ... [2022-07-14 00:31:51,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:31:51" (1/1) ... [2022-07-14 00:31:51,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:31:51" (1/1) ... [2022-07-14 00:31:51,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:31:51" (1/1) ... [2022-07-14 00:31:51,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:31:51" (1/1) ... [2022-07-14 00:31:51,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:31:51,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:31:51,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:31:51,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:31:51,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:31:51" (1/1) ... [2022-07-14 00:31:51,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:31:51,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:31:51,565 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 00:31:51,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 00:31:51,620 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2022-07-14 00:31:51,620 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2022-07-14 00:31:51,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 00:31:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 00:31:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-07-14 00:31:51,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-07-14 00:31:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 00:31:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 00:31:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 00:31:51,621 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 00:31:51,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:31:51,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:31:51,622 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-14 00:31:51,622 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-14 00:31:51,622 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 00:31:51,622 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 00:31:51,622 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-14 00:31:51,622 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-14 00:31:51,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-14 00:31:51,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-14 00:31:51,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:31:51,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:31:51,623 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2022-07-14 00:31:51,623 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2022-07-14 00:31:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:31:51,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:31:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-14 00:31:51,624 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-14 00:31:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-14 00:31:51,624 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-14 00:31:51,624 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 00:31:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 00:31:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-14 00:31:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-14 00:31:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2022-07-14 00:31:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2022-07-14 00:31:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-14 00:31:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-14 00:31:51,625 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:31:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:31:51,626 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-14 00:31:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-14 00:31:51,626 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 00:31:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 00:31:51,627 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-14 00:31:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-14 00:31:51,628 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-14 00:31:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-14 00:31:51,628 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2022-07-14 00:31:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2022-07-14 00:31:51,628 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-14 00:31:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-14 00:31:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-07-14 00:31:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-07-14 00:31:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-14 00:31:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-14 00:31:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:31:51,629 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-14 00:31:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-14 00:31:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-14 00:31:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-14 00:31:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:31:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 00:31:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 00:31:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-14 00:31:51,630 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-14 00:31:51,630 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 00:31:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 00:31:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-14 00:31:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-14 00:31:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 00:31:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 00:31:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-14 00:31:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-14 00:31:51,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-14 00:31:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2022-07-14 00:31:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2022-07-14 00:31:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2022-07-14 00:31:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2022-07-14 00:31:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 00:31:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 00:31:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2022-07-14 00:31:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2022-07-14 00:31:51,632 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2022-07-14 00:31:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2022-07-14 00:31:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-14 00:31:51,633 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-14 00:31:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 00:31:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 00:31:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 00:31:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 00:31:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:31:51,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:31:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 00:31:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 00:31:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 00:31:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-14 00:31:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-14 00:31:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 00:31:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-14 00:31:51,634 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-14 00:31:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 00:31:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 00:31:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2022-07-14 00:31:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2022-07-14 00:31:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 00:31:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 00:31:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:31:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:31:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2022-07-14 00:31:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2022-07-14 00:31:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-14 00:31:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-14 00:31:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 00:31:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 00:31:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-14 00:31:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-14 00:31:51,636 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2022-07-14 00:31:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2022-07-14 00:31:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2022-07-14 00:31:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2022-07-14 00:31:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-14 00:31:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-14 00:31:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 00:31:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 00:31:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 00:31:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 00:31:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-14 00:31:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-14 00:31:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 00:31:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 00:31:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-14 00:31:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-14 00:31:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:31:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:31:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-07-14 00:31:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-07-14 00:31:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-14 00:31:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-14 00:31:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-14 00:31:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-14 00:31:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2022-07-14 00:31:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2022-07-14 00:31:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:31:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:31:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2022-07-14 00:31:51,640 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2022-07-14 00:31:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2022-07-14 00:31:51,640 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2022-07-14 00:31:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:31:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-07-14 00:31:51,640 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-07-14 00:31:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:31:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2022-07-14 00:31:51,640 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2022-07-14 00:31:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:31:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-14 00:31:51,641 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-14 00:31:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-14 00:31:51,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-14 00:31:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-07-14 00:31:51,641 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-07-14 00:31:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-14 00:31:51,641 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-14 00:31:51,641 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2022-07-14 00:31:51,642 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2022-07-14 00:31:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-14 00:31:51,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-14 00:31:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2022-07-14 00:31:51,642 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2022-07-14 00:31:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-14 00:31:51,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-14 00:31:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 00:31:51,642 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 00:31:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-14 00:31:51,643 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-14 00:31:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:31:51,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:31:52,375 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:31:52,380 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:31:52,532 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:32:18,523 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:32:18,547 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:32:18,547 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 00:32:18,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:32:18 BoogieIcfgContainer [2022-07-14 00:32:18,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:32:18,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:32:18,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:32:18,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:32:18,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:31:48" (1/3) ... [2022-07-14 00:32:18,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576f47ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:32:18, skipping insertion in model container [2022-07-14 00:32:18,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:31:51" (2/3) ... [2022-07-14 00:32:18,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576f47ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:32:18, skipping insertion in model container [2022-07-14 00:32:18,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:32:18" (3/3) ... [2022-07-14 00:32:18,555 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 [2022-07-14 00:32:18,564 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:32:18,577 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:32:18,667 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:32:18,676 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@5686acf2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@351485cc [2022-07-14 00:32:18,676 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:32:18,689 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) [2022-07-14 00:32:18,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-14 00:32:18,785 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:32:18,786 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] [2022-07-14 00:32:18,787 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:32:18,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:32:18,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1363995595, now seen corresponding path program 1 times [2022-07-14 00:32:18,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:32:18,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723089583] [2022-07-14 00:32:18,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:32:18,813 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:32:18,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:32:18,841 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:32:18,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 00:32:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:32:19,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:32:19,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:32:19,907 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-14 00:32:19,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:32:19,908 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:32:19,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723089583] [2022-07-14 00:32:19,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1723089583] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:32:19,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:32:19,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:32:19,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523875395] [2022-07-14 00:32:19,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:32:19,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:32:19,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:32:19,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:32:19,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:32:19,938 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) [2022-07-14 00:32:20,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:32:20,103 INFO L93 Difference]: Finished difference Result 3366 states and 4873 transitions. [2022-07-14 00:32:20,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:32:20,108 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 [2022-07-14 00:32:20,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:32:20,138 INFO L225 Difference]: With dead ends: 3366 [2022-07-14 00:32:20,139 INFO L226 Difference]: Without dead ends: 1666 [2022-07-14 00:32:20,153 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 [2022-07-14 00:32:20,156 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 [2022-07-14 00:32:20,157 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] [2022-07-14 00:32:20,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2022-07-14 00:32:20,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1666. [2022-07-14 00:32:20,279 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) [2022-07-14 00:32:20,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2382 transitions. [2022-07-14 00:32:20,296 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2382 transitions. Word has length 92 [2022-07-14 00:32:20,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:32:20,297 INFO L495 AbstractCegarLoop]: Abstraction has 1666 states and 2382 transitions. [2022-07-14 00:32:20,298 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) [2022-07-14 00:32:20,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2382 transitions. [2022-07-14 00:32:20,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-14 00:32:20,306 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:32:20,307 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] [2022-07-14 00:32:20,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 00:32:20,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:32:20,532 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:32:20,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:32:20,532 INFO L85 PathProgramCache]: Analyzing trace with hash 138693986, now seen corresponding path program 1 times [2022-07-14 00:32:20,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:32:20,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989116483] [2022-07-14 00:32:20,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:32:20,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:32:20,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:32:20,536 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:32:20,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 00:32:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:32:21,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 1130 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:32:21,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:32:21,575 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-14 00:32:21,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:32:21,675 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-14 00:32:21,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:32:21,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989116483] [2022-07-14 00:32:21,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989116483] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:32:21,677 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:32:21,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-14 00:32:21,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985910354] [2022-07-14 00:32:21,679 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:32:21,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:32:21,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:32:21,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:32:21,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:32:21,681 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) [2022-07-14 00:32:21,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:32:21,904 INFO L93 Difference]: Finished difference Result 3318 states and 4746 transitions. [2022-07-14 00:32:21,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:32:21,906 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 [2022-07-14 00:32:21,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:32:21,915 INFO L225 Difference]: With dead ends: 3318 [2022-07-14 00:32:21,916 INFO L226 Difference]: Without dead ends: 1669 [2022-07-14 00:32:21,924 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 [2022-07-14 00:32:21,925 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 [2022-07-14 00:32:21,925 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] [2022-07-14 00:32:21,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2022-07-14 00:32:21,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1669. [2022-07-14 00:32:21,976 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) [2022-07-14 00:32:21,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2385 transitions. [2022-07-14 00:32:21,987 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2385 transitions. Word has length 93 [2022-07-14 00:32:21,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:32:21,987 INFO L495 AbstractCegarLoop]: Abstraction has 1669 states and 2385 transitions. [2022-07-14 00:32:21,988 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) [2022-07-14 00:32:21,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2385 transitions. [2022-07-14 00:32:21,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-14 00:32:21,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:32:21,992 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] [2022-07-14 00:32:22,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:32:22,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:32:22,212 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:32:22,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:32:22,212 INFO L85 PathProgramCache]: Analyzing trace with hash 634287989, now seen corresponding path program 2 times [2022-07-14 00:32:22,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:32:22,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209036281] [2022-07-14 00:32:22,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:32:22,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:32:22,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:32:22,232 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:32:22,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 00:32:23,102 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 00:32:23,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:32:23,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 00:32:23,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:32:23,214 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-07-14 00:32:23,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:32:23,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:32:23,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209036281] [2022-07-14 00:32:23,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209036281] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:32:23,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:32:23,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:32:23,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552083182] [2022-07-14 00:32:23,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:32:23,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:32:23,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:32:23,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:32:23,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:32:23,216 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) [2022-07-14 00:32:23,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:32:23,306 INFO L93 Difference]: Finished difference Result 1676 states and 2391 transitions. [2022-07-14 00:32:23,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:32:23,306 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 [2022-07-14 00:32:23,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:32:23,314 INFO L225 Difference]: With dead ends: 1676 [2022-07-14 00:32:23,315 INFO L226 Difference]: Without dead ends: 1673 [2022-07-14 00:32:23,316 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 [2022-07-14 00:32:23,316 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 [2022-07-14 00:32:23,317 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] [2022-07-14 00:32:23,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2022-07-14 00:32:23,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1673. [2022-07-14 00:32:23,353 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) [2022-07-14 00:32:23,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2388 transitions. [2022-07-14 00:32:23,361 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2388 transitions. Word has length 96 [2022-07-14 00:32:23,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:32:23,362 INFO L495 AbstractCegarLoop]: Abstraction has 1673 states and 2388 transitions. [2022-07-14 00:32:23,362 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) [2022-07-14 00:32:23,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2388 transitions. [2022-07-14 00:32:23,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-14 00:32:23,370 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:32:23,370 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] [2022-07-14 00:32:23,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 00:32:23,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:32:23,594 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:32:23,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:32:23,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1401028673, now seen corresponding path program 1 times [2022-07-14 00:32:23,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:32:23,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112405332] [2022-07-14 00:32:23,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:32:23,596 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:32:23,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:32:23,601 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:32:23,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 00:32:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:32:25,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 1789 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:32:25,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:32:25,205 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-07-14 00:32:25,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:32:25,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:32:25,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112405332] [2022-07-14 00:32:25,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112405332] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:32:25,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:32:25,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:32:25,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410426378] [2022-07-14 00:32:25,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:32:25,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:32:25,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:32:25,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:32:25,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:32:25,208 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) [2022-07-14 00:32:25,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:32:25,509 INFO L93 Difference]: Finished difference Result 4525 states and 6463 transitions. [2022-07-14 00:32:25,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:32:25,510 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 [2022-07-14 00:32:25,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:32:25,542 INFO L225 Difference]: With dead ends: 4525 [2022-07-14 00:32:25,542 INFO L226 Difference]: Without dead ends: 2873 [2022-07-14 00:32:25,552 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 [2022-07-14 00:32:25,555 INFO L413 NwaCegarLoop]: 2810 mSDtfsCounter, 1730 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-14 00:32:25,556 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] [2022-07-14 00:32:25,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2022-07-14 00:32:25,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 2873. [2022-07-14 00:32:25,663 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) [2022-07-14 00:32:25,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 4102 transitions. [2022-07-14 00:32:25,681 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 4102 transitions. Word has length 204 [2022-07-14 00:32:25,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:32:25,682 INFO L495 AbstractCegarLoop]: Abstraction has 2873 states and 4102 transitions. [2022-07-14 00:32:25,682 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) [2022-07-14 00:32:25,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 4102 transitions. [2022-07-14 00:32:25,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-07-14 00:32:25,700 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:32:25,700 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] [2022-07-14 00:32:25,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 00:32:25,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:32:25,929 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:32:25,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:32:25,929 INFO L85 PathProgramCache]: Analyzing trace with hash 347093790, now seen corresponding path program 1 times [2022-07-14 00:32:25,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:32:25,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384621088] [2022-07-14 00:32:25,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:32:25,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:32:25,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:32:25,932 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:32:25,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 00:32:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:32:27,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 1900 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 00:32:27,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:32:27,726 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2022-07-14 00:32:27,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:32:27,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:32:27,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1384621088] [2022-07-14 00:32:27,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1384621088] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:32:27,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:32:27,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:32:27,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20266252] [2022-07-14 00:32:27,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:32:27,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:32:27,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:32:27,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:32:27,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:32:27,729 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) [2022-07-14 00:32:29,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:32:31,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:32:31,101 INFO L93 Difference]: Finished difference Result 7555 states and 11105 transitions. [2022-07-14 00:32:31,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:32:31,101 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 [2022-07-14 00:32:31,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:32:31,121 INFO L225 Difference]: With dead ends: 7555 [2022-07-14 00:32:31,121 INFO L226 Difference]: Without dead ends: 4710 [2022-07-14 00:32:31,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:32:31,132 INFO L413 NwaCegarLoop]: 3313 mSDtfsCounter, 1483 mSDsluCounter, 12276 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 15589 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:32:31,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1630 Valid, 15589 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-14 00:32:31,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4710 states. [2022-07-14 00:32:31,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4710 to 2878. [2022-07-14 00:32:31,220 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) [2022-07-14 00:32:31,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 4112 transitions. [2022-07-14 00:32:31,230 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 4112 transitions. Word has length 242 [2022-07-14 00:32:31,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:32:31,230 INFO L495 AbstractCegarLoop]: Abstraction has 2878 states and 4112 transitions. [2022-07-14 00:32:31,231 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) [2022-07-14 00:32:31,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 4112 transitions. [2022-07-14 00:32:31,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-07-14 00:32:31,242 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:32:31,242 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] [2022-07-14 00:32:31,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 00:32:31,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:32:31,468 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:32:31,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:32:31,468 INFO L85 PathProgramCache]: Analyzing trace with hash -947631555, now seen corresponding path program 1 times [2022-07-14 00:32:31,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:32:31,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269453912] [2022-07-14 00:32:31,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:32:31,470 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:32:31,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:32:31,472 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:32:31,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 00:32:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:32:33,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 1917 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 00:32:33,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:32:33,189 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-07-14 00:32:33,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:32:33,192 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:32:33,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269453912] [2022-07-14 00:32:33,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269453912] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:32:33,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:32:33,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:32:33,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099988688] [2022-07-14 00:32:33,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:32:33,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:32:33,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:32:33,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:32:33,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:32:33,195 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) [2022-07-14 00:32:33,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:32:33,914 INFO L93 Difference]: Finished difference Result 7581 states and 11143 transitions. [2022-07-14 00:32:33,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:32:33,915 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 [2022-07-14 00:32:33,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:32:33,940 INFO L225 Difference]: With dead ends: 7581 [2022-07-14 00:32:33,940 INFO L226 Difference]: Without dead ends: 4731 [2022-07-14 00:32:33,950 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 [2022-07-14 00:32:33,951 INFO L413 NwaCegarLoop]: 3316 mSDtfsCounter, 1501 mSDsluCounter, 12301 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2022-07-14 00:32:33,951 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] [2022-07-14 00:32:33,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4731 states. [2022-07-14 00:32:34,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4731 to 2881. [2022-07-14 00:32:34,056 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) [2022-07-14 00:32:34,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 4115 transitions. [2022-07-14 00:32:34,070 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 4115 transitions. Word has length 248 [2022-07-14 00:32:34,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:32:34,071 INFO L495 AbstractCegarLoop]: Abstraction has 2881 states and 4115 transitions. [2022-07-14 00:32:34,072 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) [2022-07-14 00:32:34,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 4115 transitions. [2022-07-14 00:32:34,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-07-14 00:32:34,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:32:34,085 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] [2022-07-14 00:32:34,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 00:32:34,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:32:34,303 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:32:34,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:32:34,304 INFO L85 PathProgramCache]: Analyzing trace with hash 2018694300, now seen corresponding path program 1 times [2022-07-14 00:32:34,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:32:34,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296097002] [2022-07-14 00:32:34,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:32:34,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:32:34,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:32:34,307 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:32:34,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 00:32:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:32:35,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 1934 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-14 00:32:35,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:32:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 129 proven. 6 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-07-14 00:32:36,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:32:37,629 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-14 00:32:37,629 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:32:37,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296097002] [2022-07-14 00:32:37,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296097002] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:32:37,630 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:32:37,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-07-14 00:32:37,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671652033] [2022-07-14 00:32:37,630 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:32:37,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 00:32:37,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:32:37,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 00:32:37,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:32:37,631 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) [2022-07-14 00:32:43,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:32:45,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:32:46,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:32:48,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:32:49,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:32:50,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:32:52,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:32:53,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:32:57,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:32:57,511 INFO L93 Difference]: Finished difference Result 10463 states and 15278 transitions. [2022-07-14 00:32:57,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 00:32:57,513 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 [2022-07-14 00:32:57,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:32:57,585 INFO L225 Difference]: With dead ends: 10463 [2022-07-14 00:32:57,585 INFO L226 Difference]: Without dead ends: 7586 [2022-07-14 00:32:57,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-07-14 00:32:57,605 INFO L413 NwaCegarLoop]: 4115 mSDtfsCounter, 5334 mSDsluCounter, 34186 mSDsCounter, 0 mSdLazyCounter, 1805 mSolverCounterSat, 1317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5492 SdHoareTripleChecker+Valid, 38301 SdHoareTripleChecker+Invalid, 3122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1317 IncrementalHoareTripleChecker+Valid, 1805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:32:57,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5492 Valid, 38301 Invalid, 3122 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1317 Valid, 1805 Invalid, 0 Unknown, 0 Unchecked, 19.2s Time] [2022-07-14 00:32:57,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7586 states. [2022-07-14 00:32:57,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7586 to 5735. [2022-07-14 00:32:57,911 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) [2022-07-14 00:32:57,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5735 states to 5735 states and 8203 transitions. [2022-07-14 00:32:57,943 INFO L78 Accepts]: Start accepts. Automaton has 5735 states and 8203 transitions. Word has length 254 [2022-07-14 00:32:57,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:32:57,944 INFO L495 AbstractCegarLoop]: Abstraction has 5735 states and 8203 transitions. [2022-07-14 00:32:57,944 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) [2022-07-14 00:32:57,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5735 states and 8203 transitions. [2022-07-14 00:32:57,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-07-14 00:32:57,977 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:32:57,977 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] [2022-07-14 00:32:58,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 00:32:58,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:32:58,192 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:32:58,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:32:58,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1748099620, now seen corresponding path program 1 times [2022-07-14 00:32:58,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:32:58,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736978539] [2022-07-14 00:32:58,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:32:58,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:32:58,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:32:58,203 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:32:58,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 00:33:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:00,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 1934 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 00:33:00,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:33:00,278 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-14 00:33:00,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:33:00,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:33:00,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736978539] [2022-07-14 00:33:00,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736978539] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:33:00,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:33:00,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:33:00,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881073045] [2022-07-14 00:33:00,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:33:00,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:33:00,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:33:00,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:33:00,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:33:00,280 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) [2022-07-14 00:33:02,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:33:02,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:33:02,624 INFO L93 Difference]: Finished difference Result 13286 states and 19322 transitions. [2022-07-14 00:33:02,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:33:02,646 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 [2022-07-14 00:33:02,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:33:02,676 INFO L225 Difference]: With dead ends: 13286 [2022-07-14 00:33:02,676 INFO L226 Difference]: Without dead ends: 7579 [2022-07-14 00:33:02,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:33:02,701 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, 2.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:33:02,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 15016 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-07-14 00:33:02,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7579 states. [2022-07-14 00:33:02,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7579 to 5745. [2022-07-14 00:33:02,963 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) [2022-07-14 00:33:02,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5745 states to 5745 states and 8215 transitions. [2022-07-14 00:33:02,981 INFO L78 Accepts]: Start accepts. Automaton has 5745 states and 8215 transitions. Word has length 254 [2022-07-14 00:33:02,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:33:02,982 INFO L495 AbstractCegarLoop]: Abstraction has 5745 states and 8215 transitions. [2022-07-14 00:33:02,982 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) [2022-07-14 00:33:02,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5745 states and 8215 transitions. [2022-07-14 00:33:03,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-07-14 00:33:03,007 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:33:03,008 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] [2022-07-14 00:33:03,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 00:33:03,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:33:03,224 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:33:03,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:33:03,225 INFO L85 PathProgramCache]: Analyzing trace with hash 237284546, now seen corresponding path program 1 times [2022-07-14 00:33:03,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:33:03,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729600211] [2022-07-14 00:33:03,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:33:03,226 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:33:03,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:33:03,240 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:33:03,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 00:33:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:05,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 1996 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:33:05,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:33:05,556 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-07-14 00:33:05,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:33:05,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:33:05,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729600211] [2022-07-14 00:33:05,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729600211] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:33:05,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:33:05,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:33:05,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107284] [2022-07-14 00:33:05,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:33:05,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:33:05,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:33:05,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:33:05,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:33:05,558 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) [2022-07-14 00:33:05,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:33:05,786 INFO L93 Difference]: Finished difference Result 11464 states and 16402 transitions. [2022-07-14 00:33:05,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:33:05,787 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 [2022-07-14 00:33:05,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:33:05,810 INFO L225 Difference]: With dead ends: 11464 [2022-07-14 00:33:05,811 INFO L226 Difference]: Without dead ends: 5747 [2022-07-14 00:33:05,830 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 [2022-07-14 00:33:05,832 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 [2022-07-14 00:33:05,833 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] [2022-07-14 00:33:05,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5747 states. [2022-07-14 00:33:06,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5747 to 5747. [2022-07-14 00:33:06,048 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) [2022-07-14 00:33:06,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5747 states to 5747 states and 8217 transitions. [2022-07-14 00:33:06,070 INFO L78 Accepts]: Start accepts. Automaton has 5747 states and 8217 transitions. Word has length 264 [2022-07-14 00:33:06,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:33:06,071 INFO L495 AbstractCegarLoop]: Abstraction has 5747 states and 8217 transitions. [2022-07-14 00:33:06,071 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) [2022-07-14 00:33:06,071 INFO L276 IsEmpty]: Start isEmpty. Operand 5747 states and 8217 transitions. [2022-07-14 00:33:06,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-07-14 00:33:06,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:33:06,089 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] [2022-07-14 00:33:06,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 00:33:06,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:33:06,316 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:33:06,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:33:06,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1381690368, now seen corresponding path program 1 times [2022-07-14 00:33:06,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:33:06,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522168484] [2022-07-14 00:33:06,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:33:06,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:33:06,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:33:06,323 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:33:06,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 00:33:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:08,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1994 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 00:33:08,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:33:08,749 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-07-14 00:33:08,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:33:08,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:33:08,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522168484] [2022-07-14 00:33:08,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522168484] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:33:08,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:33:08,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:33:08,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511759036] [2022-07-14 00:33:08,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:33:08,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:33:08,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:33:08,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:33:08,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:33:08,751 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) [2022-07-14 00:33:11,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:33:11,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:33:11,240 INFO L93 Difference]: Finished difference Result 13310 states and 19350 transitions. [2022-07-14 00:33:11,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:33:11,244 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 [2022-07-14 00:33:11,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:33:11,283 INFO L225 Difference]: With dead ends: 13310 [2022-07-14 00:33:11,284 INFO L226 Difference]: Without dead ends: 7591 [2022-07-14 00:33:11,310 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 [2022-07-14 00:33:11,310 INFO L413 NwaCegarLoop]: 3176 mSDtfsCounter, 503 mSDsluCounter, 12042 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 15218 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:33:11,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 15218 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-14 00:33:11,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7591 states. [2022-07-14 00:33:11,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7591 to 5751. [2022-07-14 00:33:11,648 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) [2022-07-14 00:33:11,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 8221 transitions. [2022-07-14 00:33:11,676 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 8221 transitions. Word has length 264 [2022-07-14 00:33:11,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:33:11,677 INFO L495 AbstractCegarLoop]: Abstraction has 5751 states and 8221 transitions. [2022-07-14 00:33:11,678 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) [2022-07-14 00:33:11,678 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 8221 transitions. [2022-07-14 00:33:11,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-14 00:33:11,703 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:33:11,703 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] [2022-07-14 00:33:11,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 00:33:11,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:33:11,920 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:33:11,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:33:11,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1482716132, now seen corresponding path program 1 times [2022-07-14 00:33:11,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:33:11,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441581346] [2022-07-14 00:33:11,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:33:11,922 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:33:11,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:33:11,924 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:33:11,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 00:33:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:14,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 2054 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:33:14,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:33:15,042 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-07-14 00:33:15,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:33:15,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:33:15,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441581346] [2022-07-14 00:33:15,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1441581346] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:33:15,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:33:15,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:33:15,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955942297] [2022-07-14 00:33:15,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:33:15,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:33:15,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:33:15,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:33:15,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:33:15,044 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) [2022-07-14 00:33:15,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:33:15,232 INFO L93 Difference]: Finished difference Result 11474 states and 16406 transitions. [2022-07-14 00:33:15,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:33:15,235 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 [2022-07-14 00:33:15,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:33:15,255 INFO L225 Difference]: With dead ends: 11474 [2022-07-14 00:33:15,256 INFO L226 Difference]: Without dead ends: 5751 [2022-07-14 00:33:15,272 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 [2022-07-14 00:33:15,273 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 [2022-07-14 00:33:15,273 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] [2022-07-14 00:33:15,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5751 states. [2022-07-14 00:33:15,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5751 to 5751. [2022-07-14 00:33:15,538 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) [2022-07-14 00:33:15,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 8219 transitions. [2022-07-14 00:33:15,560 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 8219 transitions. Word has length 274 [2022-07-14 00:33:15,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:33:15,560 INFO L495 AbstractCegarLoop]: Abstraction has 5751 states and 8219 transitions. [2022-07-14 00:33:15,561 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) [2022-07-14 00:33:15,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 8219 transitions. [2022-07-14 00:33:15,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-14 00:33:15,579 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:33:15,579 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] [2022-07-14 00:33:15,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 00:33:15,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:33:15,792 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:33:15,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:33:15,793 INFO L85 PathProgramCache]: Analyzing trace with hash -221798882, now seen corresponding path program 1 times [2022-07-14 00:33:15,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:33:15,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460716537] [2022-07-14 00:33:15,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:33:15,794 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:33:15,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:33:15,795 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:33:15,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 00:33:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:18,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 2054 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:33:18,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:33:18,553 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-07-14 00:33:18,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:33:18,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:33:18,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460716537] [2022-07-14 00:33:18,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460716537] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:33:18,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:33:18,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:33:18,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786443757] [2022-07-14 00:33:18,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:33:18,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:33:18,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:33:18,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:33:18,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:33:18,556 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) [2022-07-14 00:33:18,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:33:18,883 INFO L93 Difference]: Finished difference Result 13754 states and 20016 transitions. [2022-07-14 00:33:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:33:18,884 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 [2022-07-14 00:33:18,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:33:18,912 INFO L225 Difference]: With dead ends: 13754 [2022-07-14 00:33:18,912 INFO L226 Difference]: Without dead ends: 8031 [2022-07-14 00:33:18,929 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 [2022-07-14 00:33:18,930 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 [2022-07-14 00:33:18,930 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] [2022-07-14 00:33:18,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8031 states. [2022-07-14 00:33:19,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8031 to 5753. [2022-07-14 00:33:19,139 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) [2022-07-14 00:33:19,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5753 states to 5753 states and 8221 transitions. [2022-07-14 00:33:19,160 INFO L78 Accepts]: Start accepts. Automaton has 5753 states and 8221 transitions. Word has length 274 [2022-07-14 00:33:19,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:33:19,160 INFO L495 AbstractCegarLoop]: Abstraction has 5753 states and 8221 transitions. [2022-07-14 00:33:19,160 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) [2022-07-14 00:33:19,161 INFO L276 IsEmpty]: Start isEmpty. Operand 5753 states and 8221 transitions. [2022-07-14 00:33:19,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-07-14 00:33:19,177 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:33:19,178 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] [2022-07-14 00:33:19,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 00:33:19,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:33:19,398 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:33:19,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:33:19,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1239846434, now seen corresponding path program 1 times [2022-07-14 00:33:19,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:33:19,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979320127] [2022-07-14 00:33:19,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:33:19,400 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:33:19,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:33:19,402 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:33:19,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 00:33:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:21,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 2076 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 00:33:21,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:33:21,947 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-07-14 00:33:21,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:33:21,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:33:21,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979320127] [2022-07-14 00:33:21,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979320127] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:33:21,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:33:21,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:33:21,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040383335] [2022-07-14 00:33:21,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:33:21,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:33:21,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:33:21,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:33:21,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:33:21,948 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) [2022-07-14 00:33:22,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:33:22,249 INFO L93 Difference]: Finished difference Result 11496 states and 16436 transitions. [2022-07-14 00:33:22,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:33:22,250 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 [2022-07-14 00:33:22,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:33:22,289 INFO L225 Difference]: With dead ends: 11496 [2022-07-14 00:33:22,289 INFO L226 Difference]: Without dead ends: 5771 [2022-07-14 00:33:22,308 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 [2022-07-14 00:33:22,308 INFO L413 NwaCegarLoop]: 2381 mSDtfsCounter, 1 mSDsluCounter, 11871 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14252 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 [2022-07-14 00:33:22,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14252 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:33:22,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5771 states. [2022-07-14 00:33:22,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5771 to 5763. [2022-07-14 00:33:22,616 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) [2022-07-14 00:33:22,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5763 states to 5763 states and 8235 transitions. [2022-07-14 00:33:22,638 INFO L78 Accepts]: Start accepts. Automaton has 5763 states and 8235 transitions. Word has length 275 [2022-07-14 00:33:22,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:33:22,638 INFO L495 AbstractCegarLoop]: Abstraction has 5763 states and 8235 transitions. [2022-07-14 00:33:22,639 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) [2022-07-14 00:33:22,639 INFO L276 IsEmpty]: Start isEmpty. Operand 5763 states and 8235 transitions. [2022-07-14 00:33:22,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-07-14 00:33:22,654 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:33:22,654 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] [2022-07-14 00:33:22,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 00:33:22,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:33:22,873 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:33:22,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:33:22,873 INFO L85 PathProgramCache]: Analyzing trace with hash -797472289, now seen corresponding path program 1 times [2022-07-14 00:33:22,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:33:22,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131876263] [2022-07-14 00:33:22,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:33:22,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:33:22,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:33:22,891 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:33:22,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 00:33:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:25,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 2093 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-14 00:33:25,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:33:26,090 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 115 proven. 6 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-07-14 00:33:26,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:33:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-07-14 00:33:26,990 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:33:26,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131876263] [2022-07-14 00:33:26,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131876263] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 00:33:26,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:33:26,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2022-07-14 00:33:26,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760337976] [2022-07-14 00:33:26,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:33:26,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:33:26,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:33:26,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:33:26,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-07-14 00:33:26,992 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) [2022-07-14 00:33:28,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:33:28,061 INFO L93 Difference]: Finished difference Result 13754 states and 20016 transitions. [2022-07-14 00:33:28,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 00:33:28,063 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 [2022-07-14 00:33:28,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:33:28,107 INFO L225 Difference]: With dead ends: 13754 [2022-07-14 00:33:28,108 INFO L226 Difference]: Without dead ends: 8019 [2022-07-14 00:33:28,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-07-14 00:33:28,135 INFO L413 NwaCegarLoop]: 3436 mSDtfsCounter, 709 mSDsluCounter, 19685 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 23121 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:33:28,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 23121 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 00:33:28,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8019 states. [2022-07-14 00:33:28,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8019 to 5765. [2022-07-14 00:33:28,575 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) [2022-07-14 00:33:28,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5765 states to 5765 states and 8235 transitions. [2022-07-14 00:33:28,608 INFO L78 Accepts]: Start accepts. Automaton has 5765 states and 8235 transitions. Word has length 281 [2022-07-14 00:33:28,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:33:28,608 INFO L495 AbstractCegarLoop]: Abstraction has 5765 states and 8235 transitions. [2022-07-14 00:33:28,609 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) [2022-07-14 00:33:28,609 INFO L276 IsEmpty]: Start isEmpty. Operand 5765 states and 8235 transitions. [2022-07-14 00:33:28,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-07-14 00:33:28,640 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:33:28,641 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] [2022-07-14 00:33:28,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-14 00:33:28,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:33:28,868 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:33:28,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:33:28,869 INFO L85 PathProgramCache]: Analyzing trace with hash -2112071882, now seen corresponding path program 1 times [2022-07-14 00:33:28,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:33:28,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427265421] [2022-07-14 00:33:28,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:33:28,871 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:33:28,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:33:28,880 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) [2022-07-14 00:33:28,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 00:33:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:32,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 2070 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:33:32,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:33:32,347 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-07-14 00:33:32,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:33:32,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:33:32,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427265421] [2022-07-14 00:33:32,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [427265421] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:33:32,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:33:32,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:33:32,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340912823] [2022-07-14 00:33:32,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:33:32,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:33:32,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:33:32,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:33:32,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:33:32,350 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) [2022-07-14 00:33:32,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:33:32,688 INFO L93 Difference]: Finished difference Result 11508 states and 16444 transitions. [2022-07-14 00:33:32,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:33:32,689 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 [2022-07-14 00:33:32,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:33:32,709 INFO L225 Difference]: With dead ends: 11508 [2022-07-14 00:33:32,709 INFO L226 Difference]: Without dead ends: 5771 [2022-07-14 00:33:32,731 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 [2022-07-14 00:33:32,732 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 [2022-07-14 00:33:32,733 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] [2022-07-14 00:33:32,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5771 states. [2022-07-14 00:33:33,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5771 to 5767. [2022-07-14 00:33:33,045 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) [2022-07-14 00:33:33,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5767 states to 5767 states and 8237 transitions. [2022-07-14 00:33:33,076 INFO L78 Accepts]: Start accepts. Automaton has 5767 states and 8237 transitions. Word has length 281 [2022-07-14 00:33:33,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:33:33,077 INFO L495 AbstractCegarLoop]: Abstraction has 5767 states and 8237 transitions. [2022-07-14 00:33:33,078 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) [2022-07-14 00:33:33,078 INFO L276 IsEmpty]: Start isEmpty. Operand 5767 states and 8237 transitions. [2022-07-14 00:33:33,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-07-14 00:33:33,099 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:33:33,099 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] [2022-07-14 00:33:33,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-14 00:33:33,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:33:33,324 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:33:33,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:33:33,325 INFO L85 PathProgramCache]: Analyzing trace with hash -691017872, now seen corresponding path program 1 times [2022-07-14 00:33:33,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:33:33,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123489807] [2022-07-14 00:33:33,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:33:33,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:33:33,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:33:33,340 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) [2022-07-14 00:33:33,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 00:33:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:36,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 2069 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:33:36,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:33:36,228 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-07-14 00:33:36,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:33:36,335 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-07-14 00:33:36,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:33:36,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123489807] [2022-07-14 00:33:36,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123489807] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:33:36,336 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:33:36,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-14 00:33:36,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990874109] [2022-07-14 00:33:36,336 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:33:36,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:33:36,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:33:36,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:33:36,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:33:36,338 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) [2022-07-14 00:33:41,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:33:41,882 INFO L93 Difference]: Finished difference Result 20640 states and 30914 transitions. [2022-07-14 00:33:41,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:33:41,883 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 [2022-07-14 00:33:41,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:33:41,946 INFO L225 Difference]: With dead ends: 20640 [2022-07-14 00:33:41,946 INFO L226 Difference]: Without dead ends: 14901 [2022-07-14 00:33:41,971 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 [2022-07-14 00:33:41,972 INFO L413 NwaCegarLoop]: 5006 mSDtfsCounter, 3547 mSDsluCounter, 13211 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s 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, 4.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:33:41,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4155 Valid, 18217 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 1450 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-14 00:33:41,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14901 states. [2022-07-14 00:33:42,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14901 to 5797. [2022-07-14 00:33:42,551 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) [2022-07-14 00:33:42,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5797 states to 5797 states and 8279 transitions. [2022-07-14 00:33:42,578 INFO L78 Accepts]: Start accepts. Automaton has 5797 states and 8279 transitions. Word has length 282 [2022-07-14 00:33:42,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:33:42,580 INFO L495 AbstractCegarLoop]: Abstraction has 5797 states and 8279 transitions. [2022-07-14 00:33:42,580 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) [2022-07-14 00:33:42,580 INFO L276 IsEmpty]: Start isEmpty. Operand 5797 states and 8279 transitions. [2022-07-14 00:33:42,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-07-14 00:33:42,602 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:33:42,602 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] [2022-07-14 00:33:42,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-14 00:33:42,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:33:42,824 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:33:42,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:33:42,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1881056989, now seen corresponding path program 1 times [2022-07-14 00:33:42,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:33:42,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364227668] [2022-07-14 00:33:42,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:33:42,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:33:42,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:33:42,827 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) [2022-07-14 00:33:42,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-14 00:33:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:45,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 2108 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:33:45,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:33:45,605 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2022-07-14 00:33:45,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:33:45,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:33:45,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364227668] [2022-07-14 00:33:45,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364227668] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:33:45,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:33:45,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:33:45,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156944490] [2022-07-14 00:33:45,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:33:45,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:33:45,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:33:45,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:33:45,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:33:45,609 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) [2022-07-14 00:33:46,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:33:46,380 INFO L93 Difference]: Finished difference Result 13852 states and 20138 transitions. [2022-07-14 00:33:46,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:33:46,381 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 [2022-07-14 00:33:46,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:33:46,426 INFO L225 Difference]: With dead ends: 13852 [2022-07-14 00:33:46,427 INFO L226 Difference]: Without dead ends: 8083 [2022-07-14 00:33:46,452 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 [2022-07-14 00:33:46,453 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:33:46,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 6009 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:33:46,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8083 states. [2022-07-14 00:33:46,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8083 to 5799. [2022-07-14 00:33:46,993 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) [2022-07-14 00:33:47,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5799 states to 5799 states and 8281 transitions. [2022-07-14 00:33:47,040 INFO L78 Accepts]: Start accepts. Automaton has 5799 states and 8281 transitions. Word has length 286 [2022-07-14 00:33:47,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:33:47,041 INFO L495 AbstractCegarLoop]: Abstraction has 5799 states and 8281 transitions. [2022-07-14 00:33:47,041 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) [2022-07-14 00:33:47,041 INFO L276 IsEmpty]: Start isEmpty. Operand 5799 states and 8281 transitions. [2022-07-14 00:33:47,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-07-14 00:33:47,062 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:33:47,063 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] [2022-07-14 00:33:47,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-07-14 00:33:47,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:33:47,296 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:33:47,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:33:47,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1147415790, now seen corresponding path program 1 times [2022-07-14 00:33:47,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:33:47,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1908199174] [2022-07-14 00:33:47,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:33:47,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:33:47,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:33:47,299 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) [2022-07-14 00:33:47,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-14 00:33:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:50,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 2210 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:33:50,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:33:50,432 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-07-14 00:33:50,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:33:50,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:33:50,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1908199174] [2022-07-14 00:33:50,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1908199174] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:33:50,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:33:50,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:33:50,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851367446] [2022-07-14 00:33:50,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:33:50,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:33:50,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:33:50,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:33:50,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:33:50,436 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) [2022-07-14 00:33:50,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:33:50,758 INFO L93 Difference]: Finished difference Result 11598 states and 16806 transitions. [2022-07-14 00:33:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:33:50,759 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 [2022-07-14 00:33:50,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:33:50,775 INFO L225 Difference]: With dead ends: 11598 [2022-07-14 00:33:50,775 INFO L226 Difference]: Without dead ends: 5827 [2022-07-14 00:33:50,791 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 [2022-07-14 00:33:50,792 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 [2022-07-14 00:33:50,792 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] [2022-07-14 00:33:50,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5827 states. [2022-07-14 00:33:51,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5827 to 5803. [2022-07-14 00:33:51,081 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) [2022-07-14 00:33:51,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5803 states to 5803 states and 8285 transitions. [2022-07-14 00:33:51,106 INFO L78 Accepts]: Start accepts. Automaton has 5803 states and 8285 transitions. Word has length 327 [2022-07-14 00:33:51,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:33:51,107 INFO L495 AbstractCegarLoop]: Abstraction has 5803 states and 8285 transitions. [2022-07-14 00:33:51,107 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) [2022-07-14 00:33:51,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5803 states and 8285 transitions. [2022-07-14 00:33:51,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-07-14 00:33:51,128 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:33:51,128 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 4, 4, 3, 3, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:33:51,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-07-14 00:33:51,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:33:51,344 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:33:51,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:33:51,344 INFO L85 PathProgramCache]: Analyzing trace with hash 781977736, now seen corresponding path program 1 times [2022-07-14 00:33:51,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:33:51,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902830745] [2022-07-14 00:33:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:33:51,347 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:33:51,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:33:51,349 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) [2022-07-14 00:33:51,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-14 00:33:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:54,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 2268 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-14 00:33:54,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:33:55,491 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2022-07-14 00:33:55,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:33:56,348 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-07-14 00:33:56,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:33:56,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902830745] [2022-07-14 00:33:56,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902830745] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 00:33:56,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:33:56,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2022-07-14 00:33:56,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122992595] [2022-07-14 00:33:56,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:33:56,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:33:56,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:33:56,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:33:56,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-07-14 00:33:56,350 INFO L87 Difference]: Start difference. First operand 5803 states and 8285 transitions. Second operand has 8 states, 8 states have (on average 20.5) internal successors, (164), 6 states have internal predecessors, (164), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 5 states have call predecessors, (40), 3 states have call successors, (40) [2022-07-14 00:33:57,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:33:57,305 INFO L93 Difference]: Finished difference Result 13870 states and 20164 transitions. [2022-07-14 00:33:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 00:33:57,307 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 6 states have internal predecessors, (164), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 5 states have call predecessors, (40), 3 states have call successors, (40) Word has length 352 [2022-07-14 00:33:57,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:33:57,344 INFO L225 Difference]: With dead ends: 13870 [2022-07-14 00:33:57,344 INFO L226 Difference]: Without dead ends: 8095 [2022-07-14 00:33:57,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-07-14 00:33:57,371 INFO L413 NwaCegarLoop]: 3349 mSDtfsCounter, 710 mSDsluCounter, 19236 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 22585 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:33:57,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 22585 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 00:33:57,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8095 states. [2022-07-14 00:33:57,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8095 to 5805. [2022-07-14 00:33:57,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5805 states, 4059 states have (on average 1.3136240453313623) internal successors, (5332), 4109 states have internal predecessors, (5332), 1462 states have call successors, (1462), 276 states have call predecessors, (1462), 283 states have return successors, (1493), 1461 states have call predecessors, (1493), 1461 states have call successors, (1493) [2022-07-14 00:33:57,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5805 states to 5805 states and 8287 transitions. [2022-07-14 00:33:57,958 INFO L78 Accepts]: Start accepts. Automaton has 5805 states and 8287 transitions. Word has length 352 [2022-07-14 00:33:57,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:33:57,958 INFO L495 AbstractCegarLoop]: Abstraction has 5805 states and 8287 transitions. [2022-07-14 00:33:57,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 6 states have internal predecessors, (164), 3 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (40), 5 states have call predecessors, (40), 3 states have call successors, (40) [2022-07-14 00:33:57,959 INFO L276 IsEmpty]: Start isEmpty. Operand 5805 states and 8287 transitions. [2022-07-14 00:33:57,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-07-14 00:33:57,977 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:33:57,977 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] [2022-07-14 00:33:58,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-07-14 00:33:58,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:33:58,200 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:33:58,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:33:58,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1745619561, now seen corresponding path program 2 times [2022-07-14 00:33:58,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:33:58,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557410315] [2022-07-14 00:33:58,202 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:33:58,202 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:33:58,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:33:58,204 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) [2022-07-14 00:33:58,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-14 00:33:59,197 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 00:33:59,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:33:59,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 928 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:33:59,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:34:00,072 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-07-14 00:34:00,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:34:00,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:34:00,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557410315] [2022-07-14 00:34:00,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557410315] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:34:00,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:34:00,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 00:34:00,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739212381] [2022-07-14 00:34:00,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:34:00,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:34:00,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:34:00,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:34:00,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:34:00,073 INFO L87 Difference]: Start difference. First operand 5805 states and 8287 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) [2022-07-14 00:34:00,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:34:00,295 INFO L93 Difference]: Finished difference Result 6345 states and 8865 transitions. [2022-07-14 00:34:00,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:34:00,295 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 346 [2022-07-14 00:34:00,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:34:00,297 INFO L225 Difference]: With dead ends: 6345 [2022-07-14 00:34:00,297 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 00:34:00,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:34:00,311 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 [2022-07-14 00:34:00,311 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] [2022-07-14 00:34:00,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 00:34:00,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 00:34:00,317 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) [2022-07-14 00:34:00,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 00:34:00,318 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 346 [2022-07-14 00:34:00,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:34:00,318 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 00:34:00,319 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) [2022-07-14 00:34:00,319 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 00:34:00,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 00:34:00,321 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-14 00:34:00,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-14 00:34:00,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:34:00,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.