./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 23:41:36,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:41:36,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:41:36,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:41:36,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:41:36,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:41:36,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:41:36,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:41:36,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:41:36,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:41:36,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:41:36,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:41:36,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:41:36,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:41:36,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:41:36,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:41:36,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:41:36,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:41:36,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:41:36,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:41:36,994 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:41:36,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:41:36,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:41:36,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:41:36,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:41:37,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:41:37,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:41:37,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:41:37,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:41:37,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:41:37,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:41:37,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:41:37,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:41:37,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:41:37,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:41:37,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:41:37,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:41:37,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:41:37,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:41:37,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:41:37,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:41:37,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:41:37,017 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 23:41:37,054 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:41:37,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:41:37,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:41:37,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:41:37,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:41:37,056 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:41:37,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:41:37,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:41:37,057 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:41:37,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:41:37,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 23:41:37,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:41:37,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:41:37,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:41:37,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:41:37,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:41:37,059 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:41:37,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:41:37,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:41:37,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:41:37,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:41:37,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:41:37,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:41:37,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:41:37,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:41:37,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 23:41:37,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 23:41:37,062 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:41:37,062 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:41:37,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:41:37,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac [2022-07-19 23:41:37,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:41:37,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:41:37,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:41:37,339 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:41:37,340 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:41:37,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-19 23:41:37,398 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0fd716b9/c8ffeb968f5342e687e74ca3acfe4a31/FLAG7f62e1ee0 [2022-07-19 23:41:38,304 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:41:38,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-19 23:41:38,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0fd716b9/c8ffeb968f5342e687e74ca3acfe4a31/FLAG7f62e1ee0 [2022-07-19 23:41:38,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0fd716b9/c8ffeb968f5342e687e74ca3acfe4a31 [2022-07-19 23:41:38,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:41:38,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:41:38,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:41:38,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:41:38,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:41:38,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:41:38" (1/1) ... [2022-07-19 23:41:38,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8cc270f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:41:38, skipping insertion in model container [2022-07-19 23:41:38,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:41:38" (1/1) ... [2022-07-19 23:41:38,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:41:38,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:41:40,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-19 23:41:42,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:41:42,565 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:41:42,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-19 23:41:42,713 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:2268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:310) 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) [2022-07-19 23:41:42,722 INFO L158 Benchmark]: Toolchain (without parser) took 3914.39ms. Allocated memory was 102.8MB in the beginning and 241.2MB in the end (delta: 138.4MB). Free memory was 54.7MB in the beginning and 118.8MB in the end (delta: -64.0MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. [2022-07-19 23:41:42,723 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 102.8MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 23:41:42,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3911.02ms. Allocated memory was 102.8MB in the beginning and 241.2MB in the end (delta: 138.4MB). Free memory was 54.5MB in the beginning and 118.8MB in the end (delta: -64.3MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. [2022-07-19 23:41:42,726 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 102.8MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3911.02ms. Allocated memory was 102.8MB in the beginning and 241.2MB in the end (delta: 138.4MB). Free memory was 54.5MB in the beginning and 118.8MB in the end (delta: -64.3MB). Peak memory consumption was 74.4MB. 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-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 23:41:44,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:41:44,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:41:44,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:41:44,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:41:44,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:41:44,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:41:44,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:41:44,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:41:44,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:41:44,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:41:44,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:41:44,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:41:44,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:41:44,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:41:44,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:41:44,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:41:44,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:41:44,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:41:44,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:41:44,755 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:41:44,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:41:44,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:41:44,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:41:44,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:41:44,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:41:44,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:41:44,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:41:44,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:41:44,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:41:44,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:41:44,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:41:44,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:41:44,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:41:44,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:41:44,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:41:44,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:41:44,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:41:44,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:41:44,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:41:44,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:41:44,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:41:44,777 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-19 23:41:44,814 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:41:44,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:41:44,815 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:41:44,815 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:41:44,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:41:44,816 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:41:44,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:41:44,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:41:44,817 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:41:44,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:41:44,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:41:44,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:41:44,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:41:44,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:41:44,827 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 23:41:44,827 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 23:41:44,828 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 23:41:44,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:41:44,828 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:41:44,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:41:44,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:41:44,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:41:44,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:41:44,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:41:44,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:41:44,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:41:44,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:41:44,830 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 23:41:44,830 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 23:41:44,830 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:41:44,831 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:41:44,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:41:44,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 23:41:44,831 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a49fa2cb2318ea112688f7105056cfdc1f55c42e8f926c44139a3fa1f7774bac [2022-07-19 23:41:45,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:41:45,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:41:45,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:41:45,177 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:41:45,177 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:41:45,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-19 23:41:45,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc89dec88/4211825122ac4650b6ad0dbb10f6b6f5/FLAG178a72d51 [2022-07-19 23:41:46,161 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:41:46,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-19 23:41:46,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc89dec88/4211825122ac4650b6ad0dbb10f6b6f5/FLAG178a72d51 [2022-07-19 23:41:46,630 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc89dec88/4211825122ac4650b6ad0dbb10f6b6f5 [2022-07-19 23:41:46,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:41:46,634 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:41:46,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:41:46,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:41:46,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:41:46,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:41:46" (1/1) ... [2022-07-19 23:41:46,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18b4084e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:41:46, skipping insertion in model container [2022-07-19 23:41:46,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:41:46" (1/1) ... [2022-07-19 23:41:46,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:41:46,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:41:48,033 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-19 23:41:50,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:41:50,976 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-19 23:41:51,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:41:51,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-19 23:41:51,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:41:51,690 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:41:51,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i[174455,174468] [2022-07-19 23:41:52,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:41:52,274 INFO L208 MainTranslator]: Completed translation [2022-07-19 23:41:52,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:41:52 WrapperNode [2022-07-19 23:41:52,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 23:41:52,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 23:41:52,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 23:41:52,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 23:41:52,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:41:52" (1/1) ... [2022-07-19 23:41:52,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:41:52" (1/1) ... [2022-07-19 23:41:52,661 INFO L137 Inliner]: procedures = 451, calls = 5982, calls flagged for inlining = 178, calls inlined = 156, statements flattened = 7209 [2022-07-19 23:41:52,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 23:41:52,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 23:41:52,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 23:41:52,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 23:41:52,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:41:52" (1/1) ... [2022-07-19 23:41:52,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:41:52" (1/1) ... [2022-07-19 23:41:52,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:41:52" (1/1) ... [2022-07-19 23:41:52,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:41:52" (1/1) ... [2022-07-19 23:41:52,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:41:52" (1/1) ... [2022-07-19 23:41:52,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:41:52" (1/1) ... [2022-07-19 23:41:52,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:41:52" (1/1) ... [2022-07-19 23:41:53,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 23:41:53,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 23:41:53,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 23:41:53,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 23:41:53,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:41:52" (1/1) ... [2022-07-19 23:41:53,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:41:53,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:41:53,093 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) [2022-07-19 23:41:53,098 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 [2022-07-19 23:41:53,126 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-07-19 23:41:53,127 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-07-19 23:41:53,127 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-07-19 23:41:53,127 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-07-19 23:41:53,127 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-19 23:41:53,127 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-19 23:41:53,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-19 23:41:53,128 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-07-19 23:41:53,128 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-07-19 23:41:53,128 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-19 23:41:53,128 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-19 23:41:53,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 23:41:53,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 23:41:53,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-19 23:41:53,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-19 23:41:53,129 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-07-19 23:41:53,129 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-07-19 23:41:53,129 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-19 23:41:53,129 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-19 23:41:53,129 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-19 23:41:53,130 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-19 23:41:53,130 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-19 23:41:53,130 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-19 23:41:53,130 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-07-19 23:41:53,130 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-07-19 23:41:53,130 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-07-19 23:41:53,130 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-07-19 23:41:53,131 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-07-19 23:41:53,131 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-07-19 23:41:53,131 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-19 23:41:53,131 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-19 23:41:53,131 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-19 23:41:53,131 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-19 23:41:53,132 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-19 23:41:53,132 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-19 23:41:53,132 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-07-19 23:41:53,132 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-07-19 23:41:53,132 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-19 23:41:53,132 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-19 23:41:53,132 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-19 23:41:53,133 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-19 23:41:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 23:41:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-19 23:41:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 23:41:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-19 23:41:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-19 23:41:53,133 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-19 23:41:53,134 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-19 23:41:53,134 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-19 23:41:53,134 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-19 23:41:53,134 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-19 23:41:53,134 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-19 23:41:53,134 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-07-19 23:41:53,135 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-07-19 23:41:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-19 23:41:53,135 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-19 23:41:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-19 23:41:53,135 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-19 23:41:53,135 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-07-19 23:41:53,135 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-07-19 23:41:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-19 23:41:53,136 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-19 23:41:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-19 23:41:53,136 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-19 23:41:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-19 23:41:53,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-19 23:41:53,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-19 23:41:53,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-19 23:41:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2022-07-19 23:41:53,137 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2022-07-19 23:41:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-19 23:41:53,137 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-19 23:41:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 23:41:53,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 23:41:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-19 23:41:53,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-19 23:41:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 23:41:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-19 23:41:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-19 23:41:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-19 23:41:53,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-19 23:41:53,139 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-19 23:41:53,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-19 23:41:53,139 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-19 23:41:53,139 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-19 23:41:53,139 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-19 23:41:53,139 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-19 23:41:53,139 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-07-19 23:41:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-07-19 23:41:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-19 23:41:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-19 23:41:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-19 23:41:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-19 23:41:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-19 23:41:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-19 23:41:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-19 23:41:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-19 23:41:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-19 23:41:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 23:41:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 23:41:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-19 23:41:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-19 23:41:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2022-07-19 23:41:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2022-07-19 23:41:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-19 23:41:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-19 23:41:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-19 23:41:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-07-19 23:41:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-07-19 23:41:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-19 23:41:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-19 23:41:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-19 23:41:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-19 23:41:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-19 23:41:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-19 23:41:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-19 23:41:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-19 23:41:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-19 23:41:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-19 23:41:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-19 23:41:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-07-19 23:41:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-07-19 23:41:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-19 23:41:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-19 23:41:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-19 23:41:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-19 23:41:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 23:41:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 23:41:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-19 23:41:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-19 23:41:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-19 23:41:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-19 23:41:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 23:41:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 23:41:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-19 23:41:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-19 23:41:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-19 23:41:53,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-19 23:41:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-19 23:41:53,147 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-19 23:41:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 23:41:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-19 23:41:53,147 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-19 23:41:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-07-19 23:41:53,148 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-07-19 23:41:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 23:41:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-19 23:41:53,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-19 23:41:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-07-19 23:41:53,148 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-07-19 23:41:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-19 23:41:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-07-19 23:41:53,149 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-07-19 23:41:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-19 23:41:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-19 23:41:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-19 23:41:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 23:41:53,149 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-19 23:41:53,149 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-19 23:41:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-19 23:41:53,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-19 23:41:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-19 23:41:53,150 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-19 23:41:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-19 23:41:53,150 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-19 23:41:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-19 23:41:53,151 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-19 23:41:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-19 23:41:53,151 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-19 23:41:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-07-19 23:41:53,151 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-07-19 23:41:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-07-19 23:41:53,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-07-19 23:41:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-19 23:41:53,152 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-19 23:41:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-19 23:41:53,152 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-19 23:41:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-19 23:41:53,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-19 23:41:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-19 23:41:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-19 23:41:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-07-19 23:41:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-07-19 23:41:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-19 23:41:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-19 23:41:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-19 23:41:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-19 23:41:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-07-19 23:41:53,154 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-07-19 23:41:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-07-19 23:41:53,154 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-07-19 23:41:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-19 23:41:53,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-19 23:41:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-19 23:41:53,154 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-19 23:41:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-07-19 23:41:53,155 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-07-19 23:41:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-19 23:41:53,155 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-19 23:41:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-19 23:41:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-19 23:41:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-19 23:41:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-19 23:41:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 23:41:53,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 23:41:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-07-19 23:41:53,156 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-07-19 23:41:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-07-19 23:41:53,156 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-07-19 23:41:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-19 23:41:53,157 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-19 23:41:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-19 23:41:53,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-19 23:41:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-07-19 23:41:53,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-07-19 23:41:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-07-19 23:41:53,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-07-19 23:41:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-19 23:41:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-19 23:41:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-19 23:41:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-19 23:41:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-19 23:41:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-19 23:41:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-07-19 23:41:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-07-19 23:41:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-19 23:41:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-19 23:41:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-19 23:41:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-19 23:41:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-19 23:41:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-19 23:41:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-07-19 23:41:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-07-19 23:41:53,974 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 23:41:53,979 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 23:41:57,564 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-19 23:42:51,976 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 23:42:51,994 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 23:42:51,995 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-19 23:42:51,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:42:51 BoogieIcfgContainer [2022-07-19 23:42:51,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 23:42:52,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 23:42:52,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 23:42:52,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 23:42:52,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:41:46" (1/3) ... [2022-07-19 23:42:52,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bde65bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:42:52, skipping insertion in model container [2022-07-19 23:42:52,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:41:52" (2/3) ... [2022-07-19 23:42:52,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bde65bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:42:52, skipping insertion in model container [2022-07-19 23:42:52,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:42:51" (3/3) ... [2022-07-19 23:42:52,005 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2022-07-19 23:42:52,017 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 23:42:52,017 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 23:42:52,088 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 23:42:52,093 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@34e4d4ee, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@60d35b1b [2022-07-19 23:42:52,094 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 23:42:52,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 1780 states, 1261 states have (on average 1.3227597145122918) internal successors, (1668), 1293 states have internal predecessors, (1668), 418 states have call successors, (418), 100 states have call predecessors, (418), 99 states have return successors, (410), 407 states have call predecessors, (410), 410 states have call successors, (410) [2022-07-19 23:42:52,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-19 23:42:52,118 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:42:52,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:42:52,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:42:52,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:42:52,124 INFO L85 PathProgramCache]: Analyzing trace with hash 26763159, now seen corresponding path program 1 times [2022-07-19 23:42:52,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:42:52,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303529064] [2022-07-19 23:42:52,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:42:52,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:42:52,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:42:52,149 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) [2022-07-19 23:42:52,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 23:42:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:58,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 5042 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 23:42:58,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:42:58,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:42:58,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:42:58,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:42:58,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303529064] [2022-07-19 23:42:58,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303529064] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:42:58,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:42:58,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:42:58,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441276825] [2022-07-19 23:42:58,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:42:58,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:42:58,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:42:58,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:42:58,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:42:58,264 INFO L87 Difference]: Start difference. First operand has 1780 states, 1261 states have (on average 1.3227597145122918) internal successors, (1668), 1293 states have internal predecessors, (1668), 418 states have call successors, (418), 100 states have call predecessors, (418), 99 states have return successors, (410), 407 states have call predecessors, (410), 410 states have call successors, (410) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:42:58,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:42:58,658 INFO L93 Difference]: Finished difference Result 3558 states and 5060 transitions. [2022-07-19 23:42:58,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 23:42:58,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2022-07-19 23:42:58,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:42:58,694 INFO L225 Difference]: With dead ends: 3558 [2022-07-19 23:42:58,694 INFO L226 Difference]: Without dead ends: 1742 [2022-07-19 23:42:58,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:42:58,717 INFO L413 NwaCegarLoop]: 2482 mSDtfsCounter, 2 mSDsluCounter, 4957 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7439 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:42:58,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7439 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 23:42:58,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-07-19 23:42:58,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1742. [2022-07-19 23:42:58,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1742 states, 1232 states have (on average 1.2962662337662338) internal successors, (1597), 1255 states have internal predecessors, (1597), 410 states have call successors, (410), 99 states have call predecessors, (410), 99 states have return successors, (410), 406 states have call predecessors, (410), 409 states have call successors, (410) [2022-07-19 23:42:58,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2417 transitions. [2022-07-19 23:42:58,907 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2417 transitions. Word has length 30 [2022-07-19 23:42:58,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:42:58,907 INFO L495 AbstractCegarLoop]: Abstraction has 1742 states and 2417 transitions. [2022-07-19 23:42:58,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:42:58,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2417 transitions. [2022-07-19 23:42:58,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-19 23:42:58,915 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:42:58,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:42:59,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 23:42:59,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:42:59,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:42:59,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:42:59,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1564114825, now seen corresponding path program 1 times [2022-07-19 23:42:59,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:42:59,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518105159] [2022-07-19 23:42:59,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:42:59,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:42:59,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:42:59,146 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) [2022-07-19 23:42:59,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 23:43:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:43:05,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 5053 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:43:05,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:43:05,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:43:05,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 23:43:05,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:43:05,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:43:05,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518105159] [2022-07-19 23:43:05,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518105159] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 23:43:05,475 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 23:43:05,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-19 23:43:05,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443162466] [2022-07-19 23:43:05,475 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 23:43:05,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 23:43:05,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:43:05,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 23:43:05,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 23:43:05,477 INFO L87 Difference]: Start difference. First operand 1742 states and 2417 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 23:43:06,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:43:06,429 INFO L93 Difference]: Finished difference Result 3488 states and 4848 transitions. [2022-07-19 23:43:06,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 23:43:06,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-07-19 23:43:06,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:43:06,444 INFO L225 Difference]: With dead ends: 3488 [2022-07-19 23:43:06,444 INFO L226 Difference]: Without dead ends: 1753 [2022-07-19 23:43:06,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-07-19 23:43:06,455 INFO L413 NwaCegarLoop]: 2408 mSDtfsCounter, 14 mSDsluCounter, 9610 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 12018 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 23:43:06,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 12018 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 23:43:06,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2022-07-19 23:43:06,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1751. [2022-07-19 23:43:06,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 1240 states have (on average 1.2991935483870967) internal successors, (1611), 1263 states have internal predecessors, (1611), 410 states have call successors, (410), 100 states have call predecessors, (410), 100 states have return successors, (411), 406 states have call predecessors, (411), 409 states have call successors, (411) [2022-07-19 23:43:06,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2432 transitions. [2022-07-19 23:43:06,519 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2432 transitions. Word has length 31 [2022-07-19 23:43:06,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:43:06,520 INFO L495 AbstractCegarLoop]: Abstraction has 1751 states and 2432 transitions. [2022-07-19 23:43:06,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 23:43:06,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2432 transitions. [2022-07-19 23:43:06,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-19 23:43:06,522 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:43:06,522 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:43:06,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-19 23:43:06,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:43:06,739 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:43:06,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:43:06,740 INFO L85 PathProgramCache]: Analyzing trace with hash -384185321, now seen corresponding path program 2 times [2022-07-19 23:43:06,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:43:06,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679592056] [2022-07-19 23:43:06,746 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 23:43:06,746 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:43:06,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:43:06,752 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) [2022-07-19 23:43:06,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 23:43:11,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-19 23:43:11,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 23:43:12,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 5042 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:43:12,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:43:12,247 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-19 23:43:12,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:43:12,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:43:12,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679592056] [2022-07-19 23:43:12,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679592056] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:43:12,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:43:12,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:43:12,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725968348] [2022-07-19 23:43:12,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:43:12,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:43:12,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:43:12,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:43:12,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:43:12,249 INFO L87 Difference]: Start difference. First operand 1751 states and 2432 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:43:12,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:43:12,917 INFO L93 Difference]: Finished difference Result 5222 states and 7260 transitions. [2022-07-19 23:43:12,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:43:12,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-07-19 23:43:12,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:43:12,948 INFO L225 Difference]: With dead ends: 5222 [2022-07-19 23:43:12,948 INFO L226 Difference]: Without dead ends: 3479 [2022-07-19 23:43:12,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:43:12,962 INFO L413 NwaCegarLoop]: 2830 mSDtfsCounter, 2381 mSDsluCounter, 2398 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 5228 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 23:43:12,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 5228 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 23:43:12,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2022-07-19 23:43:13,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3477. [2022-07-19 23:43:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 2461 states have (on average 1.2998780983340106) internal successors, (3199), 2506 states have internal predecessors, (3199), 816 states have call successors, (816), 199 states have call predecessors, (816), 199 states have return successors, (818), 809 states have call predecessors, (818), 815 states have call successors, (818) [2022-07-19 23:43:13,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 4833 transitions. [2022-07-19 23:43:13,114 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 4833 transitions. Word has length 34 [2022-07-19 23:43:13,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:43:13,114 INFO L495 AbstractCegarLoop]: Abstraction has 3477 states and 4833 transitions. [2022-07-19 23:43:13,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:43:13,115 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 4833 transitions. [2022-07-19 23:43:13,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-19 23:43:13,117 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:43:13,118 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:43:13,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-19 23:43:13,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:43:13,339 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:43:13,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:43:13,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1036926639, now seen corresponding path program 1 times [2022-07-19 23:43:13,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:43:13,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483743391] [2022-07-19 23:43:13,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:43:13,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:43:13,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:43:13,353 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) [2022-07-19 23:43:13,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 23:43:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:43:19,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 5098 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:43:19,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:43:19,732 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-19 23:43:19,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:43:19,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:43:19,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483743391] [2022-07-19 23:43:19,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483743391] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:43:19,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:43:19,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:43:19,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857789645] [2022-07-19 23:43:19,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:43:19,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:43:19,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:43:19,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:43:19,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:43:19,734 INFO L87 Difference]: Start difference. First operand 3477 states and 4833 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 23:43:20,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:43:20,665 INFO L93 Difference]: Finished difference Result 10412 states and 14529 transitions. [2022-07-19 23:43:20,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:43:20,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2022-07-19 23:43:20,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:43:20,718 INFO L225 Difference]: With dead ends: 10412 [2022-07-19 23:43:20,718 INFO L226 Difference]: Without dead ends: 6938 [2022-07-19 23:43:20,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:43:20,748 INFO L413 NwaCegarLoop]: 2892 mSDtfsCounter, 2384 mSDsluCounter, 8194 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 11086 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 23:43:20,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 11086 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 23:43:20,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6938 states. [2022-07-19 23:43:20,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6938 to 6928. [2022-07-19 23:43:21,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 4901 states have (on average 1.29973474801061) internal successors, (6370), 4990 states have internal predecessors, (6370), 1629 states have call successors, (1629), 397 states have call predecessors, (1629), 397 states have return successors, (1669), 1616 states have call predecessors, (1669), 1628 states have call successors, (1669) [2022-07-19 23:43:21,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 9668 transitions. [2022-07-19 23:43:21,154 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 9668 transitions. Word has length 38 [2022-07-19 23:43:21,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:43:21,154 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 9668 transitions. [2022-07-19 23:43:21,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 23:43:21,155 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 9668 transitions. [2022-07-19 23:43:21,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-19 23:43:21,171 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:43:21,172 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:43:21,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-19 23:43:21,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:43:21,391 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:43:21,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:43:21,393 INFO L85 PathProgramCache]: Analyzing trace with hash -915869094, now seen corresponding path program 1 times [2022-07-19 23:43:21,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:43:21,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865862685] [2022-07-19 23:43:21,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:43:21,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:43:21,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:43:21,400 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) [2022-07-19 23:43:21,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-19 23:43:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:43:27,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 5404 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:43:27,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:43:27,547 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-19 23:43:27,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:43:27,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:43:27,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865862685] [2022-07-19 23:43:27,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1865862685] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:43:27,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:43:27,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:43:27,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374093004] [2022-07-19 23:43:27,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:43:27,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:43:27,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:43:27,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:43:27,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:43:27,550 INFO L87 Difference]: Start difference. First operand 6928 states and 9668 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-19 23:43:28,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:43:28,534 INFO L93 Difference]: Finished difference Result 19528 states and 27122 transitions. [2022-07-19 23:43:28,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:43:28,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 147 [2022-07-19 23:43:28,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:43:28,639 INFO L225 Difference]: With dead ends: 19528 [2022-07-19 23:43:28,640 INFO L226 Difference]: Without dead ends: 12608 [2022-07-19 23:43:28,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:43:28,683 INFO L413 NwaCegarLoop]: 2923 mSDtfsCounter, 1987 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 5221 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 23:43:28,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1987 Valid, 5221 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-19 23:43:28,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12608 states. [2022-07-19 23:43:29,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12608 to 12486. [2022-07-19 23:43:29,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12486 states, 8841 states have (on average 1.2943105983486032) internal successors, (11443), 9010 states have internal predecessors, (11443), 2899 states have call successors, (2899), 749 states have call predecessors, (2899), 745 states have return successors, (2969), 2862 states have call predecessors, (2969), 2898 states have call successors, (2969) [2022-07-19 23:43:29,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12486 states to 12486 states and 17311 transitions. [2022-07-19 23:43:29,278 INFO L78 Accepts]: Start accepts. Automaton has 12486 states and 17311 transitions. Word has length 147 [2022-07-19 23:43:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:43:29,280 INFO L495 AbstractCegarLoop]: Abstraction has 12486 states and 17311 transitions. [2022-07-19 23:43:29,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-19 23:43:29,281 INFO L276 IsEmpty]: Start isEmpty. Operand 12486 states and 17311 transitions. [2022-07-19 23:43:29,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-19 23:43:29,297 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:43:29,297 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:43:29,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-19 23:43:29,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:43:29,512 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:43:29,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:43:29,512 INFO L85 PathProgramCache]: Analyzing trace with hash 79837402, now seen corresponding path program 1 times [2022-07-19 23:43:29,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:43:29,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969396971] [2022-07-19 23:43:29,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:43:29,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:43:29,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:43:29,520 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) [2022-07-19 23:43:29,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-19 23:43:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:43:35,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 5529 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:43:35,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:43:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-19 23:43:36,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:43:36,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:43:36,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969396971] [2022-07-19 23:43:36,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969396971] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:43:36,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:43:36,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:43:36,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824833907] [2022-07-19 23:43:36,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:43:36,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:43:36,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:43:36,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:43:36,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:43:36,094 INFO L87 Difference]: Start difference. First operand 12486 states and 17311 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 23:43:37,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:43:37,205 INFO L93 Difference]: Finished difference Result 32612 states and 45079 transitions. [2022-07-19 23:43:37,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:43:37,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 157 [2022-07-19 23:43:37,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:43:37,316 INFO L225 Difference]: With dead ends: 32612 [2022-07-19 23:43:37,316 INFO L226 Difference]: Without dead ends: 20130 [2022-07-19 23:43:37,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:43:37,366 INFO L413 NwaCegarLoop]: 3704 mSDtfsCounter, 1753 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 6089 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 23:43:37,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 6089 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 23:43:37,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20130 states. [2022-07-19 23:43:37,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20130 to 20096. [2022-07-19 23:43:37,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20096 states, 14259 states have (on average 1.2925170068027212) internal successors, (18430), 14535 states have internal predecessors, (18430), 4591 states have call successors, (4591), 1250 states have call predecessors, (4591), 1245 states have return successors, (4694), 4542 states have call predecessors, (4694), 4590 states have call successors, (4694) [2022-07-19 23:43:38,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20096 states to 20096 states and 27715 transitions. [2022-07-19 23:43:38,064 INFO L78 Accepts]: Start accepts. Automaton has 20096 states and 27715 transitions. Word has length 157 [2022-07-19 23:43:38,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:43:38,064 INFO L495 AbstractCegarLoop]: Abstraction has 20096 states and 27715 transitions. [2022-07-19 23:43:38,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-19 23:43:38,065 INFO L276 IsEmpty]: Start isEmpty. Operand 20096 states and 27715 transitions. [2022-07-19 23:43:38,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-19 23:43:38,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:43:38,089 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:43:38,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-19 23:43:38,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:43:38,304 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:43:38,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:43:38,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1663908607, now seen corresponding path program 1 times [2022-07-19 23:43:38,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:43:38,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582227346] [2022-07-19 23:43:38,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:43:38,310 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:43:38,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:43:38,311 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) [2022-07-19 23:43:38,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-19 23:43:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:43:44,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 5571 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:43:44,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:43:44,939 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-19 23:43:44,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:43:44,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:43:44,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1582227346] [2022-07-19 23:43:44,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1582227346] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:43:44,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:43:44,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:43:44,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38492105] [2022-07-19 23:43:44,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:43:44,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:43:44,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:43:44,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:43:44,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:43:44,942 INFO L87 Difference]: Start difference. First operand 20096 states and 27715 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-19 23:43:46,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:43:46,107 INFO L93 Difference]: Finished difference Result 48376 states and 66581 transitions. [2022-07-19 23:43:46,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:43:46,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 173 [2022-07-19 23:43:46,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:43:46,436 INFO L225 Difference]: With dead ends: 48376 [2022-07-19 23:43:46,437 INFO L226 Difference]: Without dead ends: 28288 [2022-07-19 23:43:46,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:43:46,530 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 2250 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2250 SdHoareTripleChecker+Valid, 5433 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 23:43:46,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2250 Valid, 5433 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 23:43:46,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28288 states. [2022-07-19 23:43:47,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28288 to 28232. [2022-07-19 23:43:47,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28232 states, 20059 states have (on average 1.2894959868388254) internal successors, (25866), 20451 states have internal predecessors, (25866), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-19 23:43:47,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28232 states to 28232 states and 38737 transitions. [2022-07-19 23:43:47,878 INFO L78 Accepts]: Start accepts. Automaton has 28232 states and 38737 transitions. Word has length 173 [2022-07-19 23:43:47,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:43:47,882 INFO L495 AbstractCegarLoop]: Abstraction has 28232 states and 38737 transitions. [2022-07-19 23:43:47,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-19 23:43:47,882 INFO L276 IsEmpty]: Start isEmpty. Operand 28232 states and 38737 transitions. [2022-07-19 23:43:47,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-19 23:43:47,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:43:47,911 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:43:48,124 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forcibly destroying the process [2022-07-19 23:43:48,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-19 23:43:48,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:43:48,157 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:43:48,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:43:48,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1881706839, now seen corresponding path program 1 times [2022-07-19 23:43:48,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:43:48,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192420837] [2022-07-19 23:43:48,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:43:48,168 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:43:48,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:43:48,170 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) [2022-07-19 23:43:48,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-19 23:43:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:43:55,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 5629 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 23:43:55,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:43:55,113 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-19 23:43:55,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:43:55,114 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:43:55,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192420837] [2022-07-19 23:43:55,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1192420837] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:43:55,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:43:55,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:43:55,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129751892] [2022-07-19 23:43:55,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:43:55,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:43:55,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:43:55,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:43:55,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:43:55,117 INFO L87 Difference]: Start difference. First operand 28232 states and 38737 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-19 23:43:56,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:43:56,975 INFO L93 Difference]: Finished difference Result 67128 states and 92145 transitions. [2022-07-19 23:43:56,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:43:56,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 190 [2022-07-19 23:43:56,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:43:57,224 INFO L225 Difference]: With dead ends: 67128 [2022-07-19 23:43:57,224 INFO L226 Difference]: Without dead ends: 38912 [2022-07-19 23:43:57,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:43:57,382 INFO L413 NwaCegarLoop]: 4620 mSDtfsCounter, 2472 mSDsluCounter, 6761 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 11381 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:43:57,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 11381 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 23:43:57,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38912 states. [2022-07-19 23:43:58,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38912 to 28248. [2022-07-19 23:43:58,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 20075 states have (on average 1.2892652552926525) internal successors, (25882), 20467 states have internal predecessors, (25882), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-19 23:43:58,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 38753 transitions. [2022-07-19 23:43:58,893 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 38753 transitions. Word has length 190 [2022-07-19 23:43:58,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:43:58,893 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 38753 transitions. [2022-07-19 23:43:58,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-19 23:43:58,894 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 38753 transitions. [2022-07-19 23:43:58,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-19 23:43:58,919 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:43:58,919 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:43:59,139 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forcibly destroying the process [2022-07-19 23:43:59,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-19 23:43:59,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:43:59,144 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:43:59,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:43:59,144 INFO L85 PathProgramCache]: Analyzing trace with hash -355262749, now seen corresponding path program 1 times [2022-07-19 23:43:59,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:43:59,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048533631] [2022-07-19 23:43:59,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:43:59,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:43:59,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:43:59,154 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) [2022-07-19 23:43:59,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-19 23:44:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:44:06,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 5682 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 23:44:06,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:44:06,638 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-19 23:44:06,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:44:06,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:44:06,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048533631] [2022-07-19 23:44:06,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048533631] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:44:06,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:44:06,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:44:06,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343782228] [2022-07-19 23:44:06,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:44:06,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:44:06,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:44:06,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:44:06,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:44:06,642 INFO L87 Difference]: Start difference. First operand 28248 states and 38753 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-19 23:44:08,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:44:08,676 INFO L93 Difference]: Finished difference Result 67168 states and 92185 transitions. [2022-07-19 23:44:08,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:44:08,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 202 [2022-07-19 23:44:08,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:44:08,967 INFO L225 Difference]: With dead ends: 67168 [2022-07-19 23:44:08,967 INFO L226 Difference]: Without dead ends: 38936 [2022-07-19 23:44:09,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:44:09,063 INFO L413 NwaCegarLoop]: 4098 mSDtfsCounter, 2472 mSDsluCounter, 6387 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 10485 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:44:09,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 10485 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 23:44:09,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38936 states. [2022-07-19 23:44:10,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38936 to 28248. [2022-07-19 23:44:10,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 20075 states have (on average 1.2892652552926525) internal successors, (25882), 20467 states have internal predecessors, (25882), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-19 23:44:10,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 38753 transitions. [2022-07-19 23:44:10,167 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 38753 transitions. Word has length 202 [2022-07-19 23:44:10,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:44:10,168 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 38753 transitions. [2022-07-19 23:44:10,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-19 23:44:10,169 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 38753 transitions. [2022-07-19 23:44:10,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-19 23:44:10,201 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:44:10,201 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:44:10,425 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forcibly destroying the process [2022-07-19 23:44:10,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-19 23:44:10,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:44:10,463 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:44:10,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:44:10,463 INFO L85 PathProgramCache]: Analyzing trace with hash -998761700, now seen corresponding path program 1 times [2022-07-19 23:44:10,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:44:10,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769329782] [2022-07-19 23:44:10,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:44:10,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:44:10,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:44:10,476 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) [2022-07-19 23:44:10,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-19 23:44:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:44:18,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 5959 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:44:18,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:44:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-19 23:44:19,470 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:44:19,470 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:44:19,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769329782] [2022-07-19 23:44:19,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769329782] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:44:19,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:44:19,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 23:44:19,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107222826] [2022-07-19 23:44:19,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:44:19,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:44:19,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:44:19,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:44:19,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:44:19,472 INFO L87 Difference]: Start difference. First operand 28248 states and 38753 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-19 23:44:20,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:44:20,356 INFO L93 Difference]: Finished difference Result 56480 states and 77488 transitions. [2022-07-19 23:44:20,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:44:20,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 241 [2022-07-19 23:44:20,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:44:20,512 INFO L225 Difference]: With dead ends: 56480 [2022-07-19 23:44:20,512 INFO L226 Difference]: Without dead ends: 28248 [2022-07-19 23:44:20,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:44:20,636 INFO L413 NwaCegarLoop]: 2411 mSDtfsCounter, 2359 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:44:20,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2359 Valid, 2411 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 23:44:20,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28248 states. [2022-07-19 23:44:21,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28248 to 28248. [2022-07-19 23:44:21,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28248 states, 20075 states have (on average 1.2888667496886674) internal successors, (25874), 20467 states have internal predecessors, (25874), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-19 23:44:21,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28248 states to 28248 states and 38745 transitions. [2022-07-19 23:44:21,685 INFO L78 Accepts]: Start accepts. Automaton has 28248 states and 38745 transitions. Word has length 241 [2022-07-19 23:44:21,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:44:21,685 INFO L495 AbstractCegarLoop]: Abstraction has 28248 states and 38745 transitions. [2022-07-19 23:44:21,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-19 23:44:21,685 INFO L276 IsEmpty]: Start isEmpty. Operand 28248 states and 38745 transitions. [2022-07-19 23:44:21,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-19 23:44:21,702 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:44:21,703 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:44:21,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-19 23:44:21,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:44:21,924 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:44:21,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:44:21,924 INFO L85 PathProgramCache]: Analyzing trace with hash 736352434, now seen corresponding path program 1 times [2022-07-19 23:44:21,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:44:21,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942550871] [2022-07-19 23:44:21,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:44:21,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:44:21,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:44:21,934 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) [2022-07-19 23:44:21,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-19 23:44:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:44:31,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 6015 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:44:31,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:44:31,854 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-19 23:44:31,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:44:31,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:44:31,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942550871] [2022-07-19 23:44:31,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942550871] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:44:31,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:44:31,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 23:44:31,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733531863] [2022-07-19 23:44:31,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:44:31,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:44:31,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:44:31,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:44:31,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:44:31,864 INFO L87 Difference]: Start difference. First operand 28248 states and 38745 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-19 23:44:32,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:44:32,907 INFO L93 Difference]: Finished difference Result 56488 states and 77488 transitions. [2022-07-19 23:44:32,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:44:32,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-07-19 23:44:32,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:44:33,047 INFO L225 Difference]: With dead ends: 56488 [2022-07-19 23:44:33,047 INFO L226 Difference]: Without dead ends: 28256 [2022-07-19 23:44:33,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:44:33,159 INFO L413 NwaCegarLoop]: 2411 mSDtfsCounter, 0 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4817 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:44:33,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4817 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 23:44:33,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28256 states. [2022-07-19 23:44:34,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28256 to 28256. [2022-07-19 23:44:34,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28256 states, 20083 states have (on average 1.288751680525818) internal successors, (25882), 20475 states have internal predecessors, (25882), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-19 23:44:34,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28256 states to 28256 states and 38753 transitions. [2022-07-19 23:44:34,229 INFO L78 Accepts]: Start accepts. Automaton has 28256 states and 38753 transitions. Word has length 253 [2022-07-19 23:44:34,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:44:34,230 INFO L495 AbstractCegarLoop]: Abstraction has 28256 states and 38753 transitions. [2022-07-19 23:44:34,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-19 23:44:34,230 INFO L276 IsEmpty]: Start isEmpty. Operand 28256 states and 38753 transitions. [2022-07-19 23:44:34,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-19 23:44:34,246 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:44:34,246 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:44:34,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-19 23:44:34,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:44:34,467 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:44:34,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:44:34,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1263746484, now seen corresponding path program 1 times [2022-07-19 23:44:34,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:44:34,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065993355] [2022-07-19 23:44:34,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:44:34,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:44:34,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:44:34,475 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 23:44:34,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-19 23:44:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:44:45,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 6017 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 23:44:45,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:44:45,977 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-19 23:44:45,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:44:45,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:44:45,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065993355] [2022-07-19 23:44:45,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065993355] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:44:45,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:44:45,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 23:44:45,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753943155] [2022-07-19 23:44:45,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:44:45,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:44:45,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:44:45,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:44:45,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:44:45,979 INFO L87 Difference]: Start difference. First operand 28256 states and 38753 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-19 23:44:46,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:44:46,961 INFO L93 Difference]: Finished difference Result 56496 states and 77632 transitions. [2022-07-19 23:44:46,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:44:46,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-07-19 23:44:46,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:44:47,124 INFO L225 Difference]: With dead ends: 56496 [2022-07-19 23:44:47,125 INFO L226 Difference]: Without dead ends: 28256 [2022-07-19 23:44:47,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 23:44:47,268 INFO L413 NwaCegarLoop]: 2404 mSDtfsCounter, 2338 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2338 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:44:47,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2338 Valid, 2404 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 23:44:47,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28256 states. [2022-07-19 23:44:48,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28256 to 28256. [2022-07-19 23:44:48,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28256 states, 20083 states have (on average 1.2857640790718519) internal successors, (25822), 20475 states have internal predecessors, (25822), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1805 states have return successors, (6504), 6302 states have call predecessors, (6504), 6366 states have call successors, (6504) [2022-07-19 23:44:48,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28256 states to 28256 states and 38693 transitions. [2022-07-19 23:44:48,322 INFO L78 Accepts]: Start accepts. Automaton has 28256 states and 38693 transitions. Word has length 253 [2022-07-19 23:44:48,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:44:48,323 INFO L495 AbstractCegarLoop]: Abstraction has 28256 states and 38693 transitions. [2022-07-19 23:44:48,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-19 23:44:48,323 INFO L276 IsEmpty]: Start isEmpty. Operand 28256 states and 38693 transitions. [2022-07-19 23:44:48,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-07-19 23:44:48,339 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:44:48,340 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:44:48,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-07-19 23:44:48,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:44:48,552 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:44:48,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:44:48,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1912339254, now seen corresponding path program 1 times [2022-07-19 23:44:48,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:44:48,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994159006] [2022-07-19 23:44:48,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:44:48,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:44:48,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:44:48,559 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 23:44:48,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-19 23:44:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:44:59,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 6017 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-19 23:44:59,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:44:59,760 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-19 23:44:59,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:44:59,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:44:59,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994159006] [2022-07-19 23:44:59,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994159006] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:44:59,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:44:59,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 23:44:59,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823547242] [2022-07-19 23:44:59,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:44:59,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 23:44:59,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:44:59,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 23:44:59,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 23:44:59,767 INFO L87 Difference]: Start difference. First operand 28256 states and 38693 transitions. Second operand has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-19 23:45:02,421 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 [] [2022-07-19 23:45:04,601 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 [] [2022-07-19 23:45:06,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:45:06,579 INFO L93 Difference]: Finished difference Result 60436 states and 83406 transitions. [2022-07-19 23:45:06,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 23:45:06,580 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-07-19 23:45:06,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:45:06,798 INFO L225 Difference]: With dead ends: 60436 [2022-07-19 23:45:06,798 INFO L226 Difference]: Without dead ends: 32196 [2022-07-19 23:45:06,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-07-19 23:45:06,927 INFO L413 NwaCegarLoop]: 2931 mSDtfsCounter, 2280 mSDsluCounter, 16453 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 481 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 19384 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-19 23:45:06,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2301 Valid, 19384 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 65 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-07-19 23:45:06,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32196 states. [2022-07-19 23:45:07,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32196 to 28312. [2022-07-19 23:45:07,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28312 states, 20131 states have (on average 1.285082708260891) internal successors, (25870), 20523 states have internal predecessors, (25870), 6367 states have call successors, (6367), 1810 states have call predecessors, (6367), 1813 states have return successors, (6552), 6310 states have call predecessors, (6552), 6366 states have call successors, (6552) [2022-07-19 23:45:08,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28312 states to 28312 states and 38789 transitions. [2022-07-19 23:45:08,119 INFO L78 Accepts]: Start accepts. Automaton has 28312 states and 38789 transitions. Word has length 253 [2022-07-19 23:45:08,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:45:08,119 INFO L495 AbstractCegarLoop]: Abstraction has 28312 states and 38789 transitions. [2022-07-19 23:45:08,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 7 states have internal predecessors, (180), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-19 23:45:08,120 INFO L276 IsEmpty]: Start isEmpty. Operand 28312 states and 38789 transitions. [2022-07-19 23:45:08,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-19 23:45:08,142 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:45:08,142 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:45:08,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-19 23:45:08,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:45:08,364 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:45:08,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:45:08,364 INFO L85 PathProgramCache]: Analyzing trace with hash -2144538835, now seen corresponding path program 1 times [2022-07-19 23:45:08,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:45:08,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607548975] [2022-07-19 23:45:08,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:45:08,375 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:45:08,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:45:08,376 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 23:45:08,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-19 23:45:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:45:19,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 6034 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-19 23:45:19,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:45:19,883 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-19 23:45:19,884 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:45:19,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 23:45:19,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607548975] [2022-07-19 23:45:19,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1607548975] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:45:19,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:45:19,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 23:45:19,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261682847] [2022-07-19 23:45:19,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:45:19,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 23:45:19,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 23:45:19,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 23:45:19,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:45:19,887 INFO L87 Difference]: Start difference. First operand 28312 states and 38789 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-19 23:45:22,662 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 [] [2022-07-19 23:45:24,807 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 [] [2022-07-19 23:45:25,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:45:25,969 INFO L93 Difference]: Finished difference Result 56528 states and 77476 transitions. [2022-07-19 23:45:25,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 23:45:25,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 259 [2022-07-19 23:45:25,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:45:26,176 INFO L225 Difference]: With dead ends: 56528 [2022-07-19 23:45:26,176 INFO L226 Difference]: Without dead ends: 28232 [2022-07-19 23:45:26,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-19 23:45:26,319 INFO L413 NwaCegarLoop]: 2412 mSDtfsCounter, 7 mSDsluCounter, 12023 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 14435 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-19 23:45:26,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 14435 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2022-07-19 23:45:26,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28232 states. [2022-07-19 23:45:27,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28232 to 28200. [2022-07-19 23:45:27,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28200 states, 20043 states have (on average 1.284139100932994) internal successors, (25738), 20435 states have internal predecessors, (25738), 6347 states have call successors, (6347), 1806 states have call predecessors, (6347), 1809 states have return successors, (6532), 6290 states have call predecessors, (6532), 6346 states have call successors, (6532) [2022-07-19 23:45:27,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28200 states to 28200 states and 38617 transitions. [2022-07-19 23:45:27,381 INFO L78 Accepts]: Start accepts. Automaton has 28200 states and 38617 transitions. Word has length 259 [2022-07-19 23:45:27,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:45:27,382 INFO L495 AbstractCegarLoop]: Abstraction has 28200 states and 38617 transitions. [2022-07-19 23:45:27,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 6 states have internal predecessors, (184), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-19 23:45:27,382 INFO L276 IsEmpty]: Start isEmpty. Operand 28200 states and 38617 transitions. [2022-07-19 23:45:27,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-07-19 23:45:27,398 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:45:27,398 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:45:27,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-19 23:45:27,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 23:45:27,620 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:45:27,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:45:27,620 INFO L85 PathProgramCache]: Analyzing trace with hash 31580642, now seen corresponding path program 1 times [2022-07-19 23:45:27,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 23:45:27,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10811395] [2022-07-19 23:45:27,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:45:27,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 23:45:27,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 23:45:27,628 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 23:45:27,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-19 23:45:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:45:34,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 5957 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 23:45:34,963 INFO L286 TraceCheckSpWp]: Computing forward predicates...