./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.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-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.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 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 04:30:23,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 04:30:23,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 04:30:23,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 04:30:23,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 04:30:23,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 04:30:23,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 04:30:23,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 04:30:23,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 04:30:23,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 04:30:23,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 04:30:23,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 04:30:23,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 04:30:23,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 04:30:23,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 04:30:23,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 04:30:23,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 04:30:23,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 04:30:23,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 04:30:23,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 04:30:23,919 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 04:30:23,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 04:30:23,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 04:30:23,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 04:30:23,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 04:30:23,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 04:30:23,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 04:30:23,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 04:30:23,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 04:30:23,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 04:30:23,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 04:30:23,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 04:30:23,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 04:30:23,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 04:30:23,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 04:30:23,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 04:30:23,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 04:30:23,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 04:30:23,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 04:30:23,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 04:30:23,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 04:30:23,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 04:30:23,940 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 04:30:23,969 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 04:30:23,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 04:30:23,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 04:30:23,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 04:30:23,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 04:30:23,971 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 04:30:23,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 04:30:23,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 04:30:23,972 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 04:30:23,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 04:30:23,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 04:30:23,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 04:30:23,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 04:30:23,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 04:30:23,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 04:30:23,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 04:30:23,974 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 04:30:23,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 04:30:23,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 04:30:23,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 04:30:23,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 04:30:23,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 04:30:23,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 04:30:23,975 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 04:30:23,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 04:30:23,976 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 04:30:23,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 04:30:23,976 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 04:30:23,976 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 04:30:23,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 04:30:23,977 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 [2022-07-14 04:30:24,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 04:30:24,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 04:30:24,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 04:30:24,240 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 04:30:24,240 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 04:30:24,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-07-14 04:30:24,302 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aad8ec196/ad903614cd2e498d875d56da35a945fb/FLAG53c36ee81 [2022-07-14 04:30:25,033 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 04:30:25,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-07-14 04:30:25,088 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aad8ec196/ad903614cd2e498d875d56da35a945fb/FLAG53c36ee81 [2022-07-14 04:30:25,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aad8ec196/ad903614cd2e498d875d56da35a945fb [2022-07-14 04:30:25,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 04:30:25,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 04:30:25,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 04:30:25,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 04:30:25,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 04:30:25,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:30:25" (1/1) ... [2022-07-14 04:30:25,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@485a98f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:30:25, skipping insertion in model container [2022-07-14 04:30:25,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:30:25" (1/1) ... [2022-07-14 04:30:25,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 04:30:25,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 04:30:27,723 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-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[419026,419039] [2022-07-14 04:30:27,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:30:27,869 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 04:30:28,113 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-14 04:30:28,123 INFO L158 Benchmark]: Toolchain (without parser) took 2520.94ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 78.5MB in the beginning and 55.3MB in the end (delta: 23.2MB). Peak memory consumption was 86.4MB. Max. memory is 16.1GB. [2022-07-14 04:30:28,124 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory was 53.7MB in the beginning and 53.7MB in the end (delta: 29.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 04:30:28,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2518.85ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 78.0MB in the beginning and 55.3MB in the end (delta: 22.7MB). Peak memory consumption was 86.4MB. Max. memory is 16.1GB. [2022-07-14 04:30:28,129 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory was 53.7MB in the beginning and 53.7MB in the end (delta: 29.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2518.85ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 78.0MB in the beginning and 55.3MB in the end (delta: 22.7MB). Peak memory consumption was 86.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) 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-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.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 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 04:30:29,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 04:30:29,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 04:30:29,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 04:30:29,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 04:30:29,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 04:30:29,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 04:30:29,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 04:30:29,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 04:30:29,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 04:30:29,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 04:30:29,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 04:30:29,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 04:30:29,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 04:30:29,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 04:30:29,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 04:30:29,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 04:30:29,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 04:30:29,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 04:30:29,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 04:30:29,949 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 04:30:29,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 04:30:29,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 04:30:29,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 04:30:29,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 04:30:29,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 04:30:29,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 04:30:29,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 04:30:29,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 04:30:29,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 04:30:29,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 04:30:29,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 04:30:29,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 04:30:29,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 04:30:29,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 04:30:29,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 04:30:29,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 04:30:29,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 04:30:29,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 04:30:29,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 04:30:29,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 04:30:29,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 04:30:29,977 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 04:30:30,009 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 04:30:30,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 04:30:30,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 04:30:30,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 04:30:30,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 04:30:30,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 04:30:30,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 04:30:30,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 04:30:30,012 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 04:30:30,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 04:30:30,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 04:30:30,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 04:30:30,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 04:30:30,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 04:30:30,014 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 04:30:30,014 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 04:30:30,015 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 04:30:30,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 04:30:30,015 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 04:30:30,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 04:30:30,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 04:30:30,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 04:30:30,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 04:30:30,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 04:30:30,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 04:30:30,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 04:30:30,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 04:30:30,017 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 04:30:30,017 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 04:30:30,017 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 04:30:30,017 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 04:30:30,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 04:30:30,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 04:30:30,018 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 [2022-07-14 04:30:30,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 04:30:30,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 04:30:30,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 04:30:30,368 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 04:30:30,369 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 04:30:30,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-07-14 04:30:30,424 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01178026a/f5ee3f3c34f648e0904958a460ed4b0e/FLAG79fc76bb4 [2022-07-14 04:30:31,237 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 04:30:31,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-07-14 04:30:31,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01178026a/f5ee3f3c34f648e0904958a460ed4b0e/FLAG79fc76bb4 [2022-07-14 04:30:31,449 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01178026a/f5ee3f3c34f648e0904958a460ed4b0e [2022-07-14 04:30:31,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 04:30:31,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 04:30:31,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 04:30:31,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 04:30:31,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 04:30:31,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:30:31" (1/1) ... [2022-07-14 04:30:31,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7133b8b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:30:31, skipping insertion in model container [2022-07-14 04:30:31,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:30:31" (1/1) ... [2022-07-14 04:30:31,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 04:30:31,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 04:30:33,462 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-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[419026,419039] [2022-07-14 04:30:33,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:30:33,667 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 04:30:33,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 04:30:34,270 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-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[419026,419039] [2022-07-14 04:30:34,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:30:34,341 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 04:30:34,767 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-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[419026,419039] [2022-07-14 04:30:34,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:30:34,880 INFO L208 MainTranslator]: Completed translation [2022-07-14 04:30:34,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:30:34 WrapperNode [2022-07-14 04:30:34,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 04:30:34,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 04:30:34,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 04:30:34,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 04:30:34,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:30:34" (1/1) ... [2022-07-14 04:30:35,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:30:34" (1/1) ... [2022-07-14 04:30:35,409 INFO L137 Inliner]: procedures = 180, calls = 6771, calls flagged for inlining = 68, calls inlined = 55, statements flattened = 15594 [2022-07-14 04:30:35,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 04:30:35,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 04:30:35,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 04:30:35,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 04:30:35,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:30:34" (1/1) ... [2022-07-14 04:30:35,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:30:34" (1/1) ... [2022-07-14 04:30:35,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:30:34" (1/1) ... [2022-07-14 04:30:35,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:30:34" (1/1) ... [2022-07-14 04:30:35,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:30:34" (1/1) ... [2022-07-14 04:30:35,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:30:34" (1/1) ... [2022-07-14 04:30:35,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:30:34" (1/1) ... [2022-07-14 04:30:35,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 04:30:35,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 04:30:35,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 04:30:35,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 04:30:35,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:30:34" (1/1) ... [2022-07-14 04:30:35,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 04:30:35,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 04:30:35,957 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 04:30:36,148 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 04:30:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2022-07-14 04:30:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2022-07-14 04:30:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2022-07-14 04:30:36,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2022-07-14 04:30:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 04:30:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-14 04:30:36,167 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-14 04:30:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2022-07-14 04:30:36,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2022-07-14 04:30:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2022-07-14 04:30:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2022-07-14 04:30:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 04:30:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 04:30:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 04:30:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2022-07-14 04:30:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2022-07-14 04:30:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2022-07-14 04:30:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2022-07-14 04:30:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2022-07-14 04:30:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2022-07-14 04:30:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2022-07-14 04:30:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2022-07-14 04:30:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 04:30:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 04:30:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2022-07-14 04:30:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2022-07-14 04:30:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 04:30:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 04:30:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2022-07-14 04:30:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2022-07-14 04:30:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2022-07-14 04:30:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2022-07-14 04:30:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 04:30:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 04:30:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2022-07-14 04:30:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2022-07-14 04:30:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-14 04:30:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~C_INT [2022-07-14 04:30:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 04:30:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 04:30:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 04:30:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2022-07-14 04:30:36,173 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2022-07-14 04:30:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2022-07-14 04:30:36,173 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2022-07-14 04:30:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 04:30:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 04:30:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2022-07-14 04:30:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2022-07-14 04:30:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-07-14 04:30:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-07-14 04:30:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-14 04:30:36,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-14 04:30:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 04:30:36,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 04:30:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2022-07-14 04:30:36,176 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2022-07-14 04:30:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2022-07-14 04:30:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2022-07-14 04:30:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-14 04:30:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-14 04:30:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2022-07-14 04:30:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2022-07-14 04:30:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 04:30:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 04:30:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 04:30:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2022-07-14 04:30:36,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2022-07-14 04:30:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2022-07-14 04:30:36,179 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2022-07-14 04:30:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-14 04:30:36,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-07-14 04:30:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 04:30:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2022-07-14 04:30:36,180 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2022-07-14 04:30:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2022-07-14 04:30:36,180 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2022-07-14 04:30:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 04:30:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 04:30:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2022-07-14 04:30:36,181 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2022-07-14 04:30:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2022-07-14 04:30:36,181 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2022-07-14 04:30:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2022-07-14 04:30:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2022-07-14 04:30:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2022-07-14 04:30:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2022-07-14 04:30:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2022-07-14 04:30:36,183 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2022-07-14 04:30:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 04:30:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 04:30:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 04:30:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 04:30:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 04:30:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2022-07-14 04:30:36,184 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2022-07-14 04:30:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 04:30:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2022-07-14 04:30:36,184 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2022-07-14 04:30:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 04:30:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 04:30:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2022-07-14 04:30:36,185 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2022-07-14 04:30:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2022-07-14 04:30:36,185 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2022-07-14 04:30:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2022-07-14 04:30:36,186 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2022-07-14 04:30:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2022-07-14 04:30:36,186 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2022-07-14 04:30:36,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 04:30:36,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-14 04:30:36,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-14 04:30:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2022-07-14 04:30:36,190 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2022-07-14 04:30:36,190 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2022-07-14 04:30:36,190 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2022-07-14 04:30:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 04:30:36,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 04:30:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2022-07-14 04:30:36,192 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2022-07-14 04:30:37,360 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 04:30:37,362 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 04:31:21,971 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 04:31:22,019 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 04:31:22,019 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 04:31:22,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:31:22 BoogieIcfgContainer [2022-07-14 04:31:22,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 04:31:22,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 04:31:22,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 04:31:22,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 04:31:22,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 04:30:31" (1/3) ... [2022-07-14 04:31:22,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d827783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:31:22, skipping insertion in model container [2022-07-14 04:31:22,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:30:34" (2/3) ... [2022-07-14 04:31:22,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d827783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:31:22, skipping insertion in model container [2022-07-14 04:31:22,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:31:22" (3/3) ... [2022-07-14 04:31:22,035 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-07-14 04:31:22,048 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 04:31:22,048 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 04:31:22,194 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 04:31:22,202 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@61ac78f8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@93a2f03 [2022-07-14 04:31:22,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 04:31:22,224 INFO L276 IsEmpty]: Start isEmpty. Operand has 5322 states, 3979 states have (on average 1.5275194772555918) internal successors, (6078), 3991 states have internal predecessors, (6078), 1293 states have call successors, (1293), 48 states have call predecessors, (1293), 48 states have return successors, (1293), 1292 states have call predecessors, (1293), 1293 states have call successors, (1293) [2022-07-14 04:31:22,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 04:31:22,231 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:31:22,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:31:22,232 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 04:31:22,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:31:22,238 INFO L85 PathProgramCache]: Analyzing trace with hash 715822242, now seen corresponding path program 1 times [2022-07-14 04:31:22,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:31:22,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729692283] [2022-07-14 04:31:22,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:31:22,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:31:22,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:31:22,265 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 04:31:22,268 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 04:31:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:31:30,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 4709 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:31:30,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:31:30,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 04:31:30,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:31:30,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:31:30,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729692283] [2022-07-14 04:31:30,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729692283] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:31:30,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:31:30,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:31:30,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049191888] [2022-07-14 04:31:30,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:31:30,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:31:30,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:31:30,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:31:30,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:31:30,158 INFO L87 Difference]: Start difference. First operand has 5322 states, 3979 states have (on average 1.5275194772555918) internal successors, (6078), 3991 states have internal predecessors, (6078), 1293 states have call successors, (1293), 48 states have call predecessors, (1293), 48 states have return successors, (1293), 1292 states have call predecessors, (1293), 1293 states have call successors, (1293) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 04:31:30,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:31:30,957 INFO L93 Difference]: Finished difference Result 10704 states and 17477 transitions. [2022-07-14 04:31:30,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:31:30,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-14 04:31:30,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:31:31,043 INFO L225 Difference]: With dead ends: 10704 [2022-07-14 04:31:31,043 INFO L226 Difference]: Without dead ends: 5381 [2022-07-14 04:31:31,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 04:31:31,129 INFO L413 NwaCegarLoop]: 8652 mSDtfsCounter, 8384 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8384 SdHoareTripleChecker+Valid, 9009 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 04:31:31,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8384 Valid, 9009 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 04:31:31,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5381 states. [2022-07-14 04:31:32,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5381 to 5379. [2022-07-14 04:31:32,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5379 states, 4031 states have (on average 1.528404862317043) internal successors, (6161), 4039 states have internal predecessors, (6161), 1295 states have call successors, (1295), 53 states have call predecessors, (1295), 52 states have return successors, (1289), 1288 states have call predecessors, (1289), 1289 states have call successors, (1289) [2022-07-14 04:31:32,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 8745 transitions. [2022-07-14 04:31:32,633 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 8745 transitions. Word has length 8 [2022-07-14 04:31:32,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:31:32,633 INFO L495 AbstractCegarLoop]: Abstraction has 5379 states and 8745 transitions. [2022-07-14 04:31:32,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 04:31:32,634 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 8745 transitions. [2022-07-14 04:31:32,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 04:31:32,635 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:31:32,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:31:32,837 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 04:31:32,855 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 04:31:32,856 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 04:31:32,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:31:32,856 INFO L85 PathProgramCache]: Analyzing trace with hash 713153294, now seen corresponding path program 1 times [2022-07-14 04:31:32,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:31:32,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403261900] [2022-07-14 04:31:32,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:31:32,865 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:31:32,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:31:32,867 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 04:31:32,895 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 04:31:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:31:40,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 4710 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:31:40,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:31:40,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 04:31:40,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:31:40,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:31:40,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403261900] [2022-07-14 04:31:40,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403261900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:31:40,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:31:40,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:31:40,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328068485] [2022-07-14 04:31:40,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:31:40,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:31:40,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:31:40,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:31:40,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:31:40,223 INFO L87 Difference]: Start difference. First operand 5379 states and 8745 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 04:31:40,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:31:40,752 INFO L93 Difference]: Finished difference Result 5381 states and 8746 transitions. [2022-07-14 04:31:40,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:31:40,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-14 04:31:40,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:31:40,803 INFO L225 Difference]: With dead ends: 5381 [2022-07-14 04:31:40,803 INFO L226 Difference]: Without dead ends: 5378 [2022-07-14 04:31:40,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 04:31:40,815 INFO L413 NwaCegarLoop]: 8643 mSDtfsCounter, 8638 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8638 SdHoareTripleChecker+Valid, 8643 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 04:31:40,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8638 Valid, 8643 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 04:31:40,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5378 states. [2022-07-14 04:31:41,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5378 to 5378. [2022-07-14 04:31:41,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 4031 states have (on average 1.528156784916894) internal successors, (6160), 4038 states have internal predecessors, (6160), 1294 states have call successors, (1294), 53 states have call predecessors, (1294), 52 states have return successors, (1289), 1288 states have call predecessors, (1289), 1289 states have call successors, (1289) [2022-07-14 04:31:41,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 8743 transitions. [2022-07-14 04:31:41,824 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 8743 transitions. Word has length 9 [2022-07-14 04:31:41,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:31:41,828 INFO L495 AbstractCegarLoop]: Abstraction has 5378 states and 8743 transitions. [2022-07-14 04:31:41,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 04:31:41,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 8743 transitions. [2022-07-14 04:31:41,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-14 04:31:41,830 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:31:41,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:31:42,014 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 04:31:42,051 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 04:31:42,051 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 04:31:42,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:31:42,052 INFO L85 PathProgramCache]: Analyzing trace with hash 630420773, now seen corresponding path program 1 times [2022-07-14 04:31:42,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:31:42,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548605989] [2022-07-14 04:31:42,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:31:42,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:31:42,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:31:42,059 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 04:31:42,061 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 04:31:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:31:49,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 4711 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:31:49,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:31:49,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 04:31:49,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:31:49,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:31:49,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548605989] [2022-07-14 04:31:49,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548605989] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:31:49,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:31:49,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:31:49,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067173417] [2022-07-14 04:31:49,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:31:49,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:31:49,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:31:49,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:31:49,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:31:49,437 INFO L87 Difference]: Start difference. First operand 5378 states and 8743 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 04:31:49,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:31:49,900 INFO L93 Difference]: Finished difference Result 5380 states and 8744 transitions. [2022-07-14 04:31:49,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:31:49,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-14 04:31:49,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:31:49,951 INFO L225 Difference]: With dead ends: 5380 [2022-07-14 04:31:49,951 INFO L226 Difference]: Without dead ends: 5377 [2022-07-14 04:31:49,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 04:31:49,960 INFO L413 NwaCegarLoop]: 8641 mSDtfsCounter, 8635 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8635 SdHoareTripleChecker+Valid, 8641 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 04:31:49,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8635 Valid, 8641 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 04:31:49,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5377 states. [2022-07-14 04:31:50,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5377 to 5377. [2022-07-14 04:31:50,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5377 states, 4031 states have (on average 1.5279087075167452) internal successors, (6159), 4037 states have internal predecessors, (6159), 1293 states have call successors, (1293), 53 states have call predecessors, (1293), 52 states have return successors, (1289), 1288 states have call predecessors, (1289), 1289 states have call successors, (1289) [2022-07-14 04:31:50,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5377 states to 5377 states and 8741 transitions. [2022-07-14 04:31:50,729 INFO L78 Accepts]: Start accepts. Automaton has 5377 states and 8741 transitions. Word has length 10 [2022-07-14 04:31:50,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:31:50,729 INFO L495 AbstractCegarLoop]: Abstraction has 5377 states and 8741 transitions. [2022-07-14 04:31:50,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 04:31:50,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5377 states and 8741 transitions. [2022-07-14 04:31:50,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 04:31:50,731 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:31:50,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:31:50,903 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 04:31:50,951 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 04:31:50,951 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 04:31:50,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:31:50,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1934282511, now seen corresponding path program 1 times [2022-07-14 04:31:50,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:31:50,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463215066] [2022-07-14 04:31:50,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:31:50,962 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:31:50,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:31:50,964 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 04:31:50,964 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 04:31:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:31:58,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 4712 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:31:58,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:31:58,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 04:31:58,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:31:58,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:31:58,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463215066] [2022-07-14 04:31:58,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463215066] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:31:58,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:31:58,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:31:58,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217391695] [2022-07-14 04:31:58,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:31:58,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:31:58,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:31:58,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:31:58,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:31:58,308 INFO L87 Difference]: Start difference. First operand 5377 states and 8741 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 04:31:59,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:31:59,068 INFO L93 Difference]: Finished difference Result 16109 states and 26329 transitions. [2022-07-14 04:31:59,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:31:59,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-14 04:31:59,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:31:59,196 INFO L225 Difference]: With dead ends: 16109 [2022-07-14 04:31:59,196 INFO L226 Difference]: Without dead ends: 10731 [2022-07-14 04:31:59,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 04:31:59,269 INFO L413 NwaCegarLoop]: 10040 mSDtfsCounter, 8663 mSDsluCounter, 8663 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8663 SdHoareTripleChecker+Valid, 18703 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 04:31:59,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8663 Valid, 18703 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 04:31:59,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10731 states. [2022-07-14 04:32:00,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10731 to 10727. [2022-07-14 04:32:00,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10727 states, 8045 states have (on average 1.5286513362336855) internal successors, (12298), 8055 states have internal predecessors, (12298), 2579 states have call successors, (2579), 104 states have call predecessors, (2579), 102 states have return successors, (2653), 2571 states have call predecessors, (2653), 2573 states have call successors, (2653) [2022-07-14 04:32:00,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10727 states to 10727 states and 17530 transitions. [2022-07-14 04:32:00,948 INFO L78 Accepts]: Start accepts. Automaton has 10727 states and 17530 transitions. Word has length 11 [2022-07-14 04:32:00,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:32:00,949 INFO L495 AbstractCegarLoop]: Abstraction has 10727 states and 17530 transitions. [2022-07-14 04:32:00,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 04:32:00,949 INFO L276 IsEmpty]: Start isEmpty. Operand 10727 states and 17530 transitions. [2022-07-14 04:32:00,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-14 04:32:00,963 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:32:00,963 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:32:01,154 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 04:32:01,179 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 04:32:01,179 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 04:32:01,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:32:01,180 INFO L85 PathProgramCache]: Analyzing trace with hash -874384355, now seen corresponding path program 1 times [2022-07-14 04:32:01,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:32:01,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568030445] [2022-07-14 04:32:01,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:32:01,186 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:32:01,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:32:01,190 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 04:32:01,192 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 04:32:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:32:08,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 5199 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 04:32:08,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:32:08,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 04:32:08,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:32:08,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:32:08,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568030445] [2022-07-14 04:32:08,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568030445] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:32:08,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:32:08,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 04:32:08,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698189307] [2022-07-14 04:32:08,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:32:08,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 04:32:08,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:32:08,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 04:32:08,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 04:32:08,941 INFO L87 Difference]: Start difference. First operand 10727 states and 17530 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 04:32:09,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:32:09,842 INFO L93 Difference]: Finished difference Result 21554 states and 35306 transitions. [2022-07-14 04:32:09,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 04:32:09,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 69 [2022-07-14 04:32:09,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:32:09,943 INFO L225 Difference]: With dead ends: 21554 [2022-07-14 04:32:09,943 INFO L226 Difference]: Without dead ends: 10830 [2022-07-14 04:32:10,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 04:32:10,051 INFO L413 NwaCegarLoop]: 8637 mSDtfsCounter, 131 mSDsluCounter, 17223 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 25860 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 04:32:10,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 25860 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 04:32:10,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10830 states. [2022-07-14 04:32:11,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10830 to 10828. [2022-07-14 04:32:11,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10828 states, 8129 states have (on average 1.5284782876122525) internal successors, (12425), 8139 states have internal predecessors, (12425), 2594 states have call successors, (2594), 106 states have call predecessors, (2594), 104 states have return successors, (2668), 2586 states have call predecessors, (2668), 2588 states have call successors, (2668) [2022-07-14 04:32:11,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10828 states to 10828 states and 17687 transitions. [2022-07-14 04:32:11,832 INFO L78 Accepts]: Start accepts. Automaton has 10828 states and 17687 transitions. Word has length 69 [2022-07-14 04:32:11,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:32:11,833 INFO L495 AbstractCegarLoop]: Abstraction has 10828 states and 17687 transitions. [2022-07-14 04:32:11,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 04:32:11,833 INFO L276 IsEmpty]: Start isEmpty. Operand 10828 states and 17687 transitions. [2022-07-14 04:32:11,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-14 04:32:11,841 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:32:11,841 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:32:12,099 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 04:32:12,183 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 04:32:12,184 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 04:32:12,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:32:12,184 INFO L85 PathProgramCache]: Analyzing trace with hash 810051597, now seen corresponding path program 1 times [2022-07-14 04:32:12,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:32:12,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648068361] [2022-07-14 04:32:12,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:32:12,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:32:12,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:32:12,194 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 04:32:12,196 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 04:32:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:32:22,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 5229 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 04:32:22,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:32:22,227 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 04:32:22,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:32:22,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:32:22,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648068361] [2022-07-14 04:32:22,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648068361] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:32:22,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:32:22,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:32:22,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767734164] [2022-07-14 04:32:22,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:32:22,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:32:22,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:32:22,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:32:22,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:32:22,229 INFO L87 Difference]: Start difference. First operand 10828 states and 17687 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 04:32:24,251 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 04:32:24,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:32:24,756 INFO L93 Difference]: Finished difference Result 21657 states and 37207 transitions. [2022-07-14 04:32:24,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:32:24,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2022-07-14 04:32:24,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:32:24,844 INFO L225 Difference]: With dead ends: 21657 [2022-07-14 04:32:24,844 INFO L226 Difference]: Without dead ends: 10832 [2022-07-14 04:32:24,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 04:32:24,987 INFO L413 NwaCegarLoop]: 8641 mSDtfsCounter, 0 mSDsluCounter, 8637 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17278 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:32:24,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17278 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-07-14 04:32:25,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10832 states. [2022-07-14 04:32:26,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10832 to 10832. [2022-07-14 04:32:26,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10832 states, 8133 states have (on average 1.5282183696053118) internal successors, (12429), 8143 states have internal predecessors, (12429), 2594 states have call successors, (2594), 106 states have call predecessors, (2594), 104 states have return successors, (2668), 2586 states have call predecessors, (2668), 2588 states have call successors, (2668) [2022-07-14 04:32:26,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10832 states to 10832 states and 17691 transitions. [2022-07-14 04:32:26,471 INFO L78 Accepts]: Start accepts. Automaton has 10832 states and 17691 transitions. Word has length 78 [2022-07-14 04:32:26,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:32:26,473 INFO L495 AbstractCegarLoop]: Abstraction has 10832 states and 17691 transitions. [2022-07-14 04:32:26,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 04:32:26,473 INFO L276 IsEmpty]: Start isEmpty. Operand 10832 states and 17691 transitions. [2022-07-14 04:32:26,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-14 04:32:26,479 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:32:26,479 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:32:26,699 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forcibly destroying the process [2022-07-14 04:32:26,699 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 04:32:26,700 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 04:32:26,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:32:26,700 INFO L85 PathProgramCache]: Analyzing trace with hash -2145203385, now seen corresponding path program 1 times [2022-07-14 04:32:26,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:32:26,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2144625183] [2022-07-14 04:32:26,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:32:26,706 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:32:26,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:32:26,707 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 04:32:26,712 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 04:32:26,713 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 04:32:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:32:36,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 5327 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 04:32:36,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:32:36,707 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 04:32:36,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:32:36,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:32:36,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2144625183] [2022-07-14 04:32:36,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2144625183] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:32:36,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:32:36,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 04:32:36,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105955542] [2022-07-14 04:32:36,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:32:36,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 04:32:36,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:32:36,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 04:32:36,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 04:32:36,710 INFO L87 Difference]: Start difference. First operand 10832 states and 17691 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 04:32:38,735 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 04:32:40,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:32:41,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:32:41,373 INFO L93 Difference]: Finished difference Result 21665 states and 37215 transitions. [2022-07-14 04:32:41,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 04:32:41,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 79 [2022-07-14 04:32:41,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:32:41,466 INFO L225 Difference]: With dead ends: 21665 [2022-07-14 04:32:41,466 INFO L226 Difference]: Without dead ends: 10836 [2022-07-14 04:32:41,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 04:32:41,647 INFO L413 NwaCegarLoop]: 8638 mSDtfsCounter, 37 mSDsluCounter, 8635 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 17273 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:32:41,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 17273 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 2 Unknown, 0 Unchecked, 4.1s Time] [2022-07-14 04:32:41,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10836 states. [2022-07-14 04:32:43,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10836 to 10836. [2022-07-14 04:32:43,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10836 states, 8137 states have (on average 1.5279587071402236) internal successors, (12433), 8147 states have internal predecessors, (12433), 2594 states have call successors, (2594), 106 states have call predecessors, (2594), 104 states have return successors, (2668), 2586 states have call predecessors, (2668), 2588 states have call successors, (2668) [2022-07-14 04:32:43,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10836 states to 10836 states and 17695 transitions. [2022-07-14 04:32:43,245 INFO L78 Accepts]: Start accepts. Automaton has 10836 states and 17695 transitions. Word has length 79 [2022-07-14 04:32:43,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:32:43,246 INFO L495 AbstractCegarLoop]: Abstraction has 10836 states and 17695 transitions. [2022-07-14 04:32:43,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 04:32:43,246 INFO L276 IsEmpty]: Start isEmpty. Operand 10836 states and 17695 transitions. [2022-07-14 04:32:43,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-14 04:32:43,252 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:32:43,252 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:32:43,471 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forcibly destroying the process [2022-07-14 04:32:43,476 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 04:32:43,476 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 04:32:43,476 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 04:32:43,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:32:43,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1158803849, now seen corresponding path program 1 times [2022-07-14 04:32:43,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:32:43,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66912369] [2022-07-14 04:32:43,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:32:43,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:32:43,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:32:43,488 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 04:32:43,491 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 04:32:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:32:54,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 5337 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 04:32:54,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:32:54,236 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-14 04:32:54,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:32:54,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:32:54,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66912369] [2022-07-14 04:32:54,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66912369] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:32:54,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:32:54,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 04:32:54,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398141265] [2022-07-14 04:32:54,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:32:54,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 04:32:54,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:32:54,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 04:32:54,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 04:32:54,239 INFO L87 Difference]: Start difference. First operand 10836 states and 17695 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 04:32:56,271 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 04:33:01,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:33:01,191 INFO L93 Difference]: Finished difference Result 21711 states and 37307 transitions. [2022-07-14 04:33:01,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:33:01,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 80 [2022-07-14 04:33:01,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:33:01,311 INFO L225 Difference]: With dead ends: 21711 [2022-07-14 04:33:01,311 INFO L226 Difference]: Without dead ends: 10878 [2022-07-14 04:33:01,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 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 04:33:01,421 INFO L413 NwaCegarLoop]: 8642 mSDtfsCounter, 11 mSDsluCounter, 33760 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 42402 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-07-14 04:33:01,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 42402 Invalid, 819 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 817 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-07-14 04:33:01,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10878 states. [2022-07-14 04:33:04,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10878 to 10852. [2022-07-14 04:33:04,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10852 states, 8150 states have (on average 1.527116564417178) internal successors, (12446), 8159 states have internal predecessors, (12446), 2594 states have call successors, (2594), 106 states have call predecessors, (2594), 107 states have return successors, (4242), 2590 states have call predecessors, (4242), 2588 states have call successors, (4242) [2022-07-14 04:33:04,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10852 states to 10852 states and 19282 transitions. [2022-07-14 04:33:04,210 INFO L78 Accepts]: Start accepts. Automaton has 10852 states and 19282 transitions. Word has length 80 [2022-07-14 04:33:04,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:33:04,211 INFO L495 AbstractCegarLoop]: Abstraction has 10852 states and 19282 transitions. [2022-07-14 04:33:04,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 04:33:04,211 INFO L276 IsEmpty]: Start isEmpty. Operand 10852 states and 19282 transitions. [2022-07-14 04:33:04,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-14 04:33:04,218 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:33:04,219 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:33:04,419 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forcibly destroying the process [2022-07-14 04:33:04,442 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 04:33:04,442 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 04:33:04,442 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 04:33:04,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:33:04,443 INFO L85 PathProgramCache]: Analyzing trace with hash 705917835, now seen corresponding path program 1 times [2022-07-14 04:33:04,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:33:04,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914652163] [2022-07-14 04:33:04,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:33:04,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:33:04,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:33:04,451 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 04:33:04,452 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 04:33:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:33:14,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 5340 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 04:33:14,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:33:14,870 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-14 04:33:14,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:33:14,870 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:33:14,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914652163] [2022-07-14 04:33:14,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914652163] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:33:14,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:33:14,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 04:33:14,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884878300] [2022-07-14 04:33:14,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:33:14,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 04:33:14,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:33:14,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 04:33:14,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 04:33:14,872 INFO L87 Difference]: Start difference. First operand 10852 states and 19282 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 04:33:16,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:33:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:33:21,719 INFO L93 Difference]: Finished difference Result 21735 states and 38902 transitions. [2022-07-14 04:33:21,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:33:21,720 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 80 [2022-07-14 04:33:21,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:33:21,878 INFO L225 Difference]: With dead ends: 21735 [2022-07-14 04:33:21,895 INFO L226 Difference]: Without dead ends: 10886 [2022-07-14 04:33:22,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 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 04:33:22,062 INFO L413 NwaCegarLoop]: 8653 mSDtfsCounter, 10 mSDsluCounter, 33799 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 42452 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:33:22,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 42452 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 817 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-07-14 04:33:22,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10886 states. [2022-07-14 04:33:24,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10886 to 10856. [2022-07-14 04:33:24,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10856 states, 8154 states have (on average 1.5268579838116263) internal successors, (12450), 8159 states have internal predecessors, (12450), 2594 states have call successors, (2594), 106 states have call predecessors, (2594), 107 states have return successors, (4242), 2594 states have call predecessors, (4242), 2588 states have call successors, (4242) [2022-07-14 04:33:24,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10856 states to 10856 states and 19286 transitions. [2022-07-14 04:33:24,671 INFO L78 Accepts]: Start accepts. Automaton has 10856 states and 19286 transitions. Word has length 80 [2022-07-14 04:33:24,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:33:24,672 INFO L495 AbstractCegarLoop]: Abstraction has 10856 states and 19286 transitions. [2022-07-14 04:33:24,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-14 04:33:24,672 INFO L276 IsEmpty]: Start isEmpty. Operand 10856 states and 19286 transitions. [2022-07-14 04:33:24,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-07-14 04:33:24,680 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:33:24,680 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:33:24,839 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 04:33:24,896 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 04:33:24,897 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 04:33:24,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:33:24,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1923976951, now seen corresponding path program 1 times [2022-07-14 04:33:24,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:33:24,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047576521] [2022-07-14 04:33:24,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:33:24,903 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:33:24,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:33:24,905 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 04:33:24,906 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 04:33:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:33:33,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 5316 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 04:33:33,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:33:33,812 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-07-14 04:33:33,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 42 [2022-07-14 04:33:33,850 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-14 04:33:33,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:33:33,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:33:33,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047576521] [2022-07-14 04:33:33,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047576521] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:33:33,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:33:33,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:33:33,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721017856] [2022-07-14 04:33:33,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:33:33,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 04:33:33,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:33:33,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 04:33:33,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 04:33:33,852 INFO L87 Difference]: Start difference. First operand 10856 states and 19286 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 04:33:36,350 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 04:33:38,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:33:40,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:33:43,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:33:57,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 04:34:02,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:34:02,597 INFO L93 Difference]: Finished difference Result 21880 states and 38872 transitions. [2022-07-14 04:34:02,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 04:34:02,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2022-07-14 04:34:02,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:34:02,729 INFO L225 Difference]: With dead ends: 21880 [2022-07-14 04:34:02,730 INFO L226 Difference]: Without dead ends: 11027 [2022-07-14 04:34:02,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 04:34:02,852 INFO L413 NwaCegarLoop]: 8666 mSDtfsCounter, 199 mSDsluCounter, 15876 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 5 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 24542 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:34:02,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 24542 Invalid, 1516 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1507 Invalid, 4 Unknown, 0 Unchecked, 28.1s Time] [2022-07-14 04:34:02,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11027 states. [2022-07-14 04:34:05,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11027 to 10974. [2022-07-14 04:34:05,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10974 states, 8236 states have (on average 1.5256192326372024) internal successors, (12565), 8253 states have internal predecessors, (12565), 2620 states have call successors, (2620), 119 states have call predecessors, (2620), 117 states have return successors, (4278), 2605 states have call predecessors, (4278), 2614 states have call successors, (4278) [2022-07-14 04:34:05,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10974 states to 10974 states and 19463 transitions. [2022-07-14 04:34:05,431 INFO L78 Accepts]: Start accepts. Automaton has 10974 states and 19463 transitions. Word has length 76 [2022-07-14 04:34:05,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:34:05,431 INFO L495 AbstractCegarLoop]: Abstraction has 10974 states and 19463 transitions. [2022-07-14 04:34:05,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-14 04:34:05,432 INFO L276 IsEmpty]: Start isEmpty. Operand 10974 states and 19463 transitions. [2022-07-14 04:34:05,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-14 04:34:05,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:34:05,447 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:34:05,618 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 04:34:05,661 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 04:34:05,662 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 04:34:05,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:34:05,662 INFO L85 PathProgramCache]: Analyzing trace with hash -699764635, now seen corresponding path program 1 times [2022-07-14 04:34:05,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:34:05,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180438063] [2022-07-14 04:34:05,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:34:05,667 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:34:05,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:34:05,668 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 04:34:05,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process