./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.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 53bbac0df0bc14c883390f302db5029bd4fd36e0669b64eb002cf70a8e5035a0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:27:23,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:27:23,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:27:23,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:27:23,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:27:23,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:27:23,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:27:23,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:27:23,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:27:23,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:27:23,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:27:23,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:27:23,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:27:23,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:27:23,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:27:23,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:27:23,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:27:23,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:27:23,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:27:23,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:27:23,741 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:27:23,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:27:23,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:27:23,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:27:23,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:27:23,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:27:23,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:27:23,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:27:23,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:27:23,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:27:23,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:27:23,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:27:23,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:27:23,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:27:23,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:27:23,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:27:23,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:27:23,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:27:23,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:27:23,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:27:23,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:27:23,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:27:23,753 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:27:23,769 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:27:23,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:27:23,770 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:27:23,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:27:23,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:27:23,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:27:23,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:27:23,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:27:23,771 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:27:23,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:27:23,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:27:23,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:27:23,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:27:23,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:27:23,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:27:23,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:27:23,773 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:27:23,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:27:23,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:27:23,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:27:23,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:27:23,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:27:23,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:27:23,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:27:23,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:27:23,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:27:23,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:27:23,775 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:27:23,775 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:27:23,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:27:23,775 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53bbac0df0bc14c883390f302db5029bd4fd36e0669b64eb002cf70a8e5035a0 [2022-07-12 12:27:23,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:27:23,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:27:23,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:27:23,955 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:27:23,956 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:27:23,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-12 12:27:24,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2c87ec6c/e58a3dfd0c12442680f183152e933d5e/FLAG44bd99404 [2022-07-12 12:27:24,619 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:27:24,620 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-12 12:27:24,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2c87ec6c/e58a3dfd0c12442680f183152e933d5e/FLAG44bd99404 [2022-07-12 12:27:24,745 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2c87ec6c/e58a3dfd0c12442680f183152e933d5e [2022-07-12 12:27:24,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:27:24,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:27:24,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:27:24,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:27:24,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:27:24,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:27:24" (1/1) ... [2022-07-12 12:27:24,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3abe2518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:27:24, skipping insertion in model container [2022-07-12 12:27:24,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:27:24" (1/1) ... [2022-07-12 12:27:24,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:27:24,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:27:25,413 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i[181748,181761] [2022-07-12 12:27:26,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:27:26,339 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:27:26,451 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i[181748,181761] [2022-07-12 12:27:26,512 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 12:27:26,517 INFO L158 Benchmark]: Toolchain (without parser) took 1768.19ms. Allocated memory was 90.2MB in the beginning and 144.7MB in the end (delta: 54.5MB). Free memory was 45.4MB in the beginning and 74.6MB in the end (delta: -29.2MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2022-07-12 12:27:26,517 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory was 51.5MB in the beginning and 51.5MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 12:27:26,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1766.63ms. Allocated memory was 90.2MB in the beginning and 144.7MB in the end (delta: 54.5MB). Free memory was 45.2MB in the beginning and 74.6MB in the end (delta: -29.4MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2022-07-12 12:27:26,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory was 51.5MB in the beginning and 51.5MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1766.63ms. Allocated memory was 90.2MB in the beginning and 144.7MB in the end (delta: 54.5MB). Free memory was 45.2MB in the beginning and 74.6MB in the end (delta: -29.4MB). Peak memory consumption was 63.7MB. 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.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 53bbac0df0bc14c883390f302db5029bd4fd36e0669b64eb002cf70a8e5035a0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:27:28,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:27:28,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:27:28,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:27:28,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:27:28,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:27:28,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:27:28,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:27:28,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:27:28,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:27:28,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:27:28,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:27:28,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:27:28,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:27:28,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:27:28,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:27:28,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:27:28,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:27:28,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:27:28,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:27:28,070 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:27:28,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:27:28,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:27:28,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:27:28,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:27:28,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:27:28,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:27:28,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:27:28,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:27:28,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:27:28,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:27:28,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:27:28,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:27:28,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:27:28,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:27:28,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:27:28,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:27:28,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:27:28,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:27:28,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:27:28,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:27:28,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:27:28,093 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 12:27:28,112 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:27:28,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:27:28,113 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:27:28,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:27:28,113 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:27:28,113 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:27:28,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:27:28,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:27:28,114 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:27:28,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:27:28,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:27:28,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:27:28,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:27:28,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:27:28,116 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 12:27:28,116 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 12:27:28,116 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 12:27:28,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:27:28,116 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:27:28,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:27:28,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:27:28,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:27:28,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:27:28,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:27:28,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:27:28,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:27:28,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:27:28,118 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 12:27:28,118 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 12:27:28,118 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:27:28,118 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:27:28,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:27:28,118 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 12:27:28,119 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53bbac0df0bc14c883390f302db5029bd4fd36e0669b64eb002cf70a8e5035a0 [2022-07-12 12:27:28,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:27:28,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:27:28,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:27:28,445 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:27:28,446 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:27:28,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-12 12:27:28,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/750c9e0b0/0575d9da82f84b30a9b8aab97204119a/FLAG24368f6d6 [2022-07-12 12:27:29,125 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:27:29,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-12 12:27:29,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/750c9e0b0/0575d9da82f84b30a9b8aab97204119a/FLAG24368f6d6 [2022-07-12 12:27:29,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/750c9e0b0/0575d9da82f84b30a9b8aab97204119a [2022-07-12 12:27:29,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:27:29,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:27:29,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:27:29,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:27:29,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:27:29,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:27:29" (1/1) ... [2022-07-12 12:27:29,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7c176a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:27:29, skipping insertion in model container [2022-07-12 12:27:29,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:27:29" (1/1) ... [2022-07-12 12:27:29,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:27:29,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:27:30,230 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i[181748,181761] [2022-07-12 12:27:31,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:27:31,292 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 12:27:31,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:27:31,456 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i[181748,181761] [2022-07-12 12:27:31,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:27:31,653 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:27:31,768 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i[181748,181761] [2022-07-12 12:27:31,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:27:32,060 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:27:32,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:27:32 WrapperNode [2022-07-12 12:27:32,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:27:32,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:27:32,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:27:32,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:27:32,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:27:32" (1/1) ... [2022-07-12 12:27:32,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:27:32" (1/1) ... [2022-07-12 12:27:32,349 INFO L137 Inliner]: procedures = 330, calls = 2397, calls flagged for inlining = 150, calls inlined = 146, statements flattened = 5383 [2022-07-12 12:27:32,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:27:32,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:27:32,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:27:32,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:27:32,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:27:32" (1/1) ... [2022-07-12 12:27:32,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:27:32" (1/1) ... [2022-07-12 12:27:32,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:27:32" (1/1) ... [2022-07-12 12:27:32,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:27:32" (1/1) ... [2022-07-12 12:27:32,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:27:32" (1/1) ... [2022-07-12 12:27:32,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:27:32" (1/1) ... [2022-07-12 12:27:32,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:27:32" (1/1) ... [2022-07-12 12:27:32,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:27:32,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:27:32,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:27:32,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:27:32,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:27:32" (1/1) ... [2022-07-12 12:27:32,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:27:32,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:27:32,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 12:27:32,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 12:27:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-12 12:27:32,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-12 12:27:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 12:27:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_total_size [2022-07-12 12:27:32,665 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_total_size [2022-07-12 12:27:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_ind_if_updown [2022-07-12 12:27:32,665 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_ind_if_updown [2022-07-12 12:27:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 12:27:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_rx_complete [2022-07-12 12:27:32,666 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_rx_complete [2022-07-12 12:27:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure get_csr [2022-07-12 12:27:32,666 INFO L138 BoogieDeclarations]: Found implementation of procedure get_csr [2022-07-12 12:27:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 12:27:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 12:27:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_19 [2022-07-12 12:27:32,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_19 [2022-07-12 12:27:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 12:27:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 12:27:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:27:32,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:27:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-12 12:27:32,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-12 12:27:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 12:27:32,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 12:27:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure array_le32_to_cpu [2022-07-12 12:27:32,666 INFO L138 BoogieDeclarations]: Found implementation of procedure array_le32_to_cpu [2022-07-12 12:27:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 12:27:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 12:27:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:27:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:27:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-12 12:27:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-12 12:27:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-12 12:27:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure netlink_rcv [2022-07-12 12:27:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure netlink_rcv [2022-07-12 12:27:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure free_rx_struct [2022-07-12 12:27:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rx_struct [2022-07-12 12:27:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:27:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:27:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wibro_send [2022-07-12 12:27:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wibro_send [2022-07-12 12:27:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~VOID [2022-07-12 12:27:32,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~VOID [2022-07-12 12:27:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 12:27:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 12:27:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:27:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:27:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_set_mac_addr [2022-07-12 12:27:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_set_mac_addr [2022-07-12 12:27:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 12:27:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 12:27:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_send_tx [2022-07-12 12:27:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_send_tx [2022-07-12 12:27:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___1 [2022-07-12 12:27:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___1 [2022-07-12 12:27:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_set_config [2022-07-12 12:27:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_set_config [2022-07-12 12:27:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_rcv_complete [2022-07-12 12:27:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_rcv_complete [2022-07-12 12:27:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 12:27:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 12:27:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_21 [2022-07-12 12:27:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_21 [2022-07-12 12:27:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure nlmsg_data [2022-07-12 12:27:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure nlmsg_data [2022-07-12 12:27:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_23 [2022-07-12 12:27:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_23 [2022-07-12 12:27:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_20 [2022-07-12 12:27:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_20 [2022-07-12 12:27:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2022-07-12 12:27:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2022-07-12 12:27:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:27:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 12:27:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 12:27:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-07-12 12:27:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-07-12 12:27:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:27:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-07-12 12:27:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-07-12 12:27:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure download_image [2022-07-12 12:27:32,670 INFO L138 BoogieDeclarations]: Found implementation of procedure download_image [2022-07-12 12:27:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 12:27:32,670 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 12:27:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 12:27:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 12:27:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 12:27:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:27:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 12:27:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-07-12 12:27:32,670 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-07-12 12:27:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:27:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~C_INT~TO~VOID [2022-07-12 12:27:32,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~$Pointer$~X~C_INT~TO~VOID [2022-07-12 12:27:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-12 12:27:32,670 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-12 12:27:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 12:27:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 12:27:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 12:27:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-12 12:27:32,671 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-12 12:27:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 12:27:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-12 12:27:32,671 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-12 12:27:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 12:27:32,671 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 12:27:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 12:27:32,671 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 12:27:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-12 12:27:32,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-12 12:27:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure free_qos_entry [2022-07-12 12:27:32,671 INFO L138 BoogieDeclarations]: Found implementation of procedure free_qos_entry [2022-07-12 12:27:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 12:27:32,671 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 12:27:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 12:27:32,672 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 12:27:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure netlink_rcv_cb [2022-07-12 12:27:32,672 INFO L138 BoogieDeclarations]: Found implementation of procedure netlink_rcv_cb [2022-07-12 12:27:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_event_rcv [2022-07-12 12:27:32,672 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_event_rcv [2022-07-12 12:27:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 12:27:32,672 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 12:27:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-12 12:27:32,672 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-12 12:27:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-12 12:27:32,672 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-12 12:27:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tx_struct [2022-07-12 12:27:32,672 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tx_struct [2022-07-12 12:27:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:27:32,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:27:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-12 12:27:32,672 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-12 12:27:32,672 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_resume [2022-07-12 12:27:32,673 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_resume [2022-07-12 12:27:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure sock_wfree [2022-07-12 12:27:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2022-07-12 12:27:32,673 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2022-07-12 12:27:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 12:27:32,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 12:27:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure extract_qos_list [2022-07-12 12:27:32,673 INFO L138 BoogieDeclarations]: Found implementation of procedure extract_qos_list [2022-07-12 12:27:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-12 12:27:32,673 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-12 12:27:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2022-07-12 12:27:32,673 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2022-07-12 12:27:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-07-12 12:27:32,673 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-07-12 12:27:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-12 12:27:32,673 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-12 12:27:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 12:27:32,673 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 12:27:32,673 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_recv_qos_hci_packet [2022-07-12 12:27:32,674 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_recv_qos_hci_packet [2022-07-12 12:27:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 12:27:32,674 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 12:27:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-12 12:27:32,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-12 12:27:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-07-12 12:27:32,674 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-07-12 12:27:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 12:27:32,674 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 12:27:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_send_complete [2022-07-12 12:27:32,674 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_send_complete [2022-07-12 12:27:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:27:32,674 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:27:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2022-07-12 12:27:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-12 12:27:32,674 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-12 12:27:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-12 12:27:32,674 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-12 12:27:32,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 12:27:32,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 12:27:32,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 12:27:32,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 12:27:32,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:27:32,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:27:32,675 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 12:27:32,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 12:27:32,678 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_disconnect [2022-07-12 12:27:32,679 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_disconnect [2022-07-12 12:27:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_netif_rx [2022-07-12 12:27:32,679 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_netif_rx [2022-07-12 12:27:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure send_qos_list [2022-07-12 12:27:32,679 INFO L138 BoogieDeclarations]: Found implementation of procedure send_qos_list [2022-07-12 12:27:32,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:27:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure kdelete [2022-07-12 12:27:32,680 INFO L138 BoogieDeclarations]: Found implementation of procedure kdelete [2022-07-12 12:27:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_transmit_pkt [2022-07-12 12:27:32,680 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_transmit_pkt [2022-07-12 12:27:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-12 12:27:32,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-12 12:27:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:27:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 12:27:32,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 12:27:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure em_download_image [2022-07-12 12:27:32,681 INFO L138 BoogieDeclarations]: Found implementation of procedure em_download_image [2022-07-12 12:27:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:27:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 12:27:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 12:27:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 12:27:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:27:32,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:27:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 12:27:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_29 [2022-07-12 12:27:32,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_29 [2022-07-12 12:27:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_rx_struct [2022-07-12 12:27:32,682 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_rx_struct [2022-07-12 12:27:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_qos_release_list [2022-07-12 12:27:32,682 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_qos_release_list [2022-07-12 12:27:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-12 12:27:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-12 12:27:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 12:27:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~X~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-12 12:27:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-12 12:27:32,684 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-12 12:27:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-12 12:27:32,684 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-12 12:27:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure free_tx_struct [2022-07-12 12:27:32,684 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tx_struct [2022-07-12 12:27:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure free_event_entry [2022-07-12 12:27:32,685 INFO L138 BoogieDeclarations]: Found implementation of procedure free_event_entry [2022-07-12 12:27:32,685 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-12 12:27:32,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-12 12:27:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_event_send [2022-07-12 12:27:32,686 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_event_send [2022-07-12 12:27:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure do_pm_control [2022-07-12 12:27:32,686 INFO L138 BoogieDeclarations]: Found implementation of procedure do_pm_control [2022-07-12 12:27:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-07-12 12:27:32,686 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-07-12 12:27:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure __gdm_usb_send_complete [2022-07-12 12:27:32,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __gdm_usb_send_complete [2022-07-12 12:27:32,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-12 12:27:32,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-12 12:27:32,687 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_qos_entry [2022-07-12 12:27:32,687 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_qos_entry [2022-07-12 12:27:32,687 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_send [2022-07-12 12:27:32,687 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_send [2022-07-12 12:27:32,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 12:27:32,688 INFO L130 BoogieDeclarations]: Found specification of procedure release_usb [2022-07-12 12:27:32,688 INFO L138 BoogieDeclarations]: Found implementation of procedure release_usb [2022-07-12 12:27:32,689 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_ioctl [2022-07-12 12:27:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_ioctl [2022-07-12 12:27:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_receive [2022-07-12 12:27:32,690 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_receive [2022-07-12 12:27:32,690 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-12 12:27:32,691 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-12 12:27:32,691 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_wimax_stats [2022-07-12 12:27:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_wimax_stats [2022-07-12 12:27:32,692 INFO L130 BoogieDeclarations]: Found specification of procedure free_qos_entry_list [2022-07-12 12:27:32,692 INFO L138 BoogieDeclarations]: Found implementation of procedure free_qos_entry_list [2022-07-12 12:27:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:27:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:27:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure em_wait_ack [2022-07-12 12:27:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure em_wait_ack [2022-07-12 12:27:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 12:27:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 12:27:33,313 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:27:33,316 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:27:33,747 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:27:43,183 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___1FINAL: assume true; [2022-07-12 12:27:56,290 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:27:56,307 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:27:56,307 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 12:27:56,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:27:56 BoogieIcfgContainer [2022-07-12 12:27:56,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:27:56,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:27:56,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:27:56,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:27:56,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:27:29" (1/3) ... [2022-07-12 12:27:56,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5262651c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:27:56, skipping insertion in model container [2022-07-12 12:27:56,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:27:32" (2/3) ... [2022-07-12 12:27:56,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5262651c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:27:56, skipping insertion in model container [2022-07-12 12:27:56,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:27:56" (3/3) ... [2022-07-12 12:27:56,315 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--staging--gdm72xx--gdmwm.ko-entry_point.cil.out.i [2022-07-12 12:27:56,325 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:27:56,325 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:27:56,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:27:56,386 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@68059223, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3b8a0254 [2022-07-12 12:27:56,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:27:56,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 1883 states, 1285 states have (on average 1.3455252918287939) internal successors, (1729), 1331 states have internal predecessors, (1729), 488 states have call successors, (488), 110 states have call predecessors, (488), 108 states have return successors, (481), 469 states have call predecessors, (481), 481 states have call successors, (481) [2022-07-12 12:27:56,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 12:27:56,404 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:27:56,404 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, 1, 1] [2022-07-12 12:27:56,405 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:27:56,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:27:56,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1607665857, now seen corresponding path program 1 times [2022-07-12 12:27:56,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:27:56,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498788276] [2022-07-12 12:27:56,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:27:56,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:27:56,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:27:56,440 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:27:56,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 12:27:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:27:57,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 12:27:57,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:27:57,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:27:57,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:27:57,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:27:57,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498788276] [2022-07-12 12:27:57,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498788276] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:27:57,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:27:57,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:27:57,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151590568] [2022-07-12 12:27:57,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:27:57,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:27:57,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:27:57,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:27:57,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:27:57,879 INFO L87 Difference]: Start difference. First operand has 1883 states, 1285 states have (on average 1.3455252918287939) internal successors, (1729), 1331 states have internal predecessors, (1729), 488 states have call successors, (488), 110 states have call predecessors, (488), 108 states have return successors, (481), 469 states have call predecessors, (481), 481 states have call successors, (481) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 12:27:58,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:27:58,091 INFO L93 Difference]: Finished difference Result 3764 states and 5509 transitions. [2022-07-12 12:27:58,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 12:27:58,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2022-07-12 12:27:58,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:27:58,116 INFO L225 Difference]: With dead ends: 3764 [2022-07-12 12:27:58,117 INFO L226 Difference]: Without dead ends: 1866 [2022-07-12 12:27:58,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:27:58,130 INFO L413 NwaCegarLoop]: 2686 mSDtfsCounter, 2 mSDsluCounter, 5369 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8055 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:27:58,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8055 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:27:58,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2022-07-12 12:27:58,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1866. [2022-07-12 12:27:58,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1866 states, 1277 states have (on average 1.33672670321065) internal successors, (1707), 1314 states have internal predecessors, (1707), 481 states have call successors, (481), 108 states have call predecessors, (481), 107 states have return successors, (475), 463 states have call predecessors, (475), 475 states have call successors, (475) [2022-07-12 12:27:58,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 2663 transitions. [2022-07-12 12:27:58,251 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 2663 transitions. Word has length 33 [2022-07-12 12:27:58,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:27:58,252 INFO L495 AbstractCegarLoop]: Abstraction has 1866 states and 2663 transitions. [2022-07-12 12:27:58,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 12:27:58,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 2663 transitions. [2022-07-12 12:27:58,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-12 12:27:58,257 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:27:58,257 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, 1, 1, 1] [2022-07-12 12:27:58,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 12:27:58,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:27:58,484 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:27:58,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:27:58,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1970633324, now seen corresponding path program 1 times [2022-07-12 12:27:58,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:27:58,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1680306192] [2022-07-12 12:27:58,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:27:58,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:27:58,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:27:58,504 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:27:58,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 12:27:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:27:59,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 1832 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 12:27:59,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:27:59,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:27:59,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:27:59,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:27:59,896 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:27:59,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1680306192] [2022-07-12 12:27:59,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1680306192] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:27:59,897 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 12:27:59,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-12 12:27:59,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709122749] [2022-07-12 12:27:59,897 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 12:27:59,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 12:27:59,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:27:59,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 12:27:59,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 12:27:59,898 INFO L87 Difference]: Start difference. First operand 1866 states and 2663 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 12:28:00,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:28:00,176 INFO L93 Difference]: Finished difference Result 3737 states and 5335 transitions. [2022-07-12 12:28:00,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 12:28:00,177 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2022-07-12 12:28:00,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:28:00,185 INFO L225 Difference]: With dead ends: 3737 [2022-07-12 12:28:00,185 INFO L226 Difference]: Without dead ends: 1875 [2022-07-12 12:28:00,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-07-12 12:28:00,191 INFO L413 NwaCegarLoop]: 2660 mSDtfsCounter, 10 mSDsluCounter, 7976 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10636 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:28:00,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 10636 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:28:00,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2022-07-12 12:28:00,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1875. [2022-07-12 12:28:00,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1285 states have (on average 1.336964980544747) internal successors, (1718), 1322 states have internal predecessors, (1718), 481 states have call successors, (481), 109 states have call predecessors, (481), 108 states have return successors, (475), 463 states have call predecessors, (475), 475 states have call successors, (475) [2022-07-12 12:28:00,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2674 transitions. [2022-07-12 12:28:00,234 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2674 transitions. Word has length 34 [2022-07-12 12:28:00,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:28:00,235 INFO L495 AbstractCegarLoop]: Abstraction has 1875 states and 2674 transitions. [2022-07-12 12:28:00,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 12:28:00,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2674 transitions. [2022-07-12 12:28:00,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-12 12:28:00,237 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:28:00,237 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] [2022-07-12 12:28:00,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 12:28:00,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:28:00,455 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:28:00,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:28:00,456 INFO L85 PathProgramCache]: Analyzing trace with hash 271918465, now seen corresponding path program 2 times [2022-07-12 12:28:00,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:28:00,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417505038] [2022-07-12 12:28:00,458 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 12:28:00,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:28:00,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:28:00,472 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:28:00,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 12:28:01,599 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 12:28:01,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 12:28:01,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:28:01,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:28:01,687 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-12 12:28:01,687 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:28:01,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:28:01,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417505038] [2022-07-12 12:28:01,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417505038] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:28:01,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:28:01,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:28:01,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357986487] [2022-07-12 12:28:01,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:28:01,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:28:01,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:28:01,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:28:01,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:01,689 INFO L87 Difference]: Start difference. First operand 1875 states and 2674 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 12:28:01,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:28:01,923 INFO L93 Difference]: Finished difference Result 5567 states and 7947 transitions. [2022-07-12 12:28:01,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:28:01,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2022-07-12 12:28:01,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:28:02,003 INFO L225 Difference]: With dead ends: 5567 [2022-07-12 12:28:02,004 INFO L226 Difference]: Without dead ends: 3707 [2022-07-12 12:28:02,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:02,009 INFO L413 NwaCegarLoop]: 3157 mSDtfsCounter, 2622 mSDsluCounter, 2636 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2622 SdHoareTripleChecker+Valid, 5793 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:28:02,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2622 Valid, 5793 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:28:02,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2022-07-12 12:28:02,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3704. [2022-07-12 12:28:02,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3704 states, 2537 states have (on average 1.3366180528182894) internal successors, (3391), 2606 states have internal predecessors, (3391), 951 states have call successors, (951), 216 states have call predecessors, (951), 215 states have return successors, (945), 921 states have call predecessors, (945), 945 states have call successors, (945) [2022-07-12 12:28:02,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 5287 transitions. [2022-07-12 12:28:02,136 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 5287 transitions. Word has length 37 [2022-07-12 12:28:02,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:28:02,136 INFO L495 AbstractCegarLoop]: Abstraction has 3704 states and 5287 transitions. [2022-07-12 12:28:02,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 12:28:02,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 5287 transitions. [2022-07-12 12:28:02,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-12 12:28:02,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:28:02,140 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] [2022-07-12 12:28:02,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-12 12:28:02,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:28:02,368 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:28:02,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:28:02,368 INFO L85 PathProgramCache]: Analyzing trace with hash -240920598, now seen corresponding path program 1 times [2022-07-12 12:28:02,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:28:02,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309526190] [2022-07-12 12:28:02,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:28:02,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:28:02,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:28:02,371 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:28:02,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 12:28:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:03,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:28:03,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:28:03,631 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-12 12:28:03,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:28:03,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:28:03,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309526190] [2022-07-12 12:28:03,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309526190] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:28:03,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:28:03,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:28:03,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502521221] [2022-07-12 12:28:03,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:28:03,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:28:03,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:28:03,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:28:03,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:03,636 INFO L87 Difference]: Start difference. First operand 3704 states and 5287 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-12 12:28:03,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:28:03,833 INFO L93 Difference]: Finished difference Result 3730 states and 5319 transitions. [2022-07-12 12:28:03,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:28:03,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2022-07-12 12:28:03,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:28:03,847 INFO L225 Difference]: With dead ends: 3730 [2022-07-12 12:28:03,847 INFO L226 Difference]: Without dead ends: 3717 [2022-07-12 12:28:03,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:03,850 INFO L413 NwaCegarLoop]: 2677 mSDtfsCounter, 2657 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2657 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:28:03,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2657 Valid, 2693 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:28:03,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2022-07-12 12:28:03,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3704. [2022-07-12 12:28:03,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3704 states, 2537 states have (on average 1.3362238864800946) internal successors, (3390), 2606 states have internal predecessors, (3390), 951 states have call successors, (951), 216 states have call predecessors, (951), 215 states have return successors, (945), 921 states have call predecessors, (945), 945 states have call successors, (945) [2022-07-12 12:28:03,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 5286 transitions. [2022-07-12 12:28:03,946 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 5286 transitions. Word has length 54 [2022-07-12 12:28:03,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:28:03,948 INFO L495 AbstractCegarLoop]: Abstraction has 3704 states and 5286 transitions. [2022-07-12 12:28:03,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-12 12:28:03,948 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 5286 transitions. [2022-07-12 12:28:03,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-12 12:28:03,949 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:28:03,950 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] [2022-07-12 12:28:03,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 12:28:04,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:28:04,176 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:28:04,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:28:04,177 INFO L85 PathProgramCache]: Analyzing trace with hash -183662296, now seen corresponding path program 1 times [2022-07-12 12:28:04,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:28:04,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125653268] [2022-07-12 12:28:04,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:28:04,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:28:04,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:28:04,180 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:28:04,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 12:28:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:05,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 1917 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 12:28:05,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:28:05,703 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-12 12:28:05,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:28:05,703 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:28:05,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125653268] [2022-07-12 12:28:05,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125653268] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:28:05,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:28:05,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 12:28:05,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045118410] [2022-07-12 12:28:05,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:28:05,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:28:05,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:28:05,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:28:05,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:05,705 INFO L87 Difference]: Start difference. First operand 3704 states and 5286 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-12 12:28:05,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:28:05,993 INFO L93 Difference]: Finished difference Result 11081 states and 16301 transitions. [2022-07-12 12:28:05,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:28:05,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2022-07-12 12:28:05,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:28:06,032 INFO L225 Difference]: With dead ends: 11081 [2022-07-12 12:28:06,032 INFO L226 Difference]: Without dead ends: 7392 [2022-07-12 12:28:06,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:06,050 INFO L413 NwaCegarLoop]: 3227 mSDtfsCounter, 2680 mSDsluCounter, 2697 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2680 SdHoareTripleChecker+Valid, 5924 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:28:06,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2680 Valid, 5924 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:28:06,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7392 states. [2022-07-12 12:28:06,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7392 to 7381. [2022-07-12 12:28:06,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7381 states, 5057 states have (on average 1.335574451255685) internal successors, (6754), 5190 states have internal predecessors, (6754), 1894 states have call successors, (1894), 430 states have call predecessors, (1894), 429 states have return successors, (2130), 1840 states have call predecessors, (2130), 1888 states have call successors, (2130) [2022-07-12 12:28:06,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7381 states to 7381 states and 10778 transitions. [2022-07-12 12:28:06,298 INFO L78 Accepts]: Start accepts. Automaton has 7381 states and 10778 transitions. Word has length 54 [2022-07-12 12:28:06,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:28:06,299 INFO L495 AbstractCegarLoop]: Abstraction has 7381 states and 10778 transitions. [2022-07-12 12:28:06,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-12 12:28:06,300 INFO L276 IsEmpty]: Start isEmpty. Operand 7381 states and 10778 transitions. [2022-07-12 12:28:06,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-12 12:28:06,302 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:28:06,302 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] [2022-07-12 12:28:06,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-12 12:28:06,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:28:06,515 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:28:06,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:28:06,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1399472197, now seen corresponding path program 1 times [2022-07-12 12:28:06,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:28:06,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999612100] [2022-07-12 12:28:06,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:28:06,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:28:06,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:28:06,523 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:28:06,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 12:28:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:07,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 1918 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 12:28:07,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:28:08,211 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-12 12:28:08,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:28:08,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:28:08,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999612100] [2022-07-12 12:28:08,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999612100] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:28:08,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:28:08,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 12:28:08,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182231231] [2022-07-12 12:28:08,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:28:08,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:28:08,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:28:08,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:28:08,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:08,213 INFO L87 Difference]: Start difference. First operand 7381 states and 10778 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-12 12:28:08,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:28:08,896 INFO L93 Difference]: Finished difference Result 22104 states and 33467 transitions. [2022-07-12 12:28:08,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:28:08,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2022-07-12 12:28:08,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:28:08,991 INFO L225 Difference]: With dead ends: 22104 [2022-07-12 12:28:08,991 INFO L226 Difference]: Without dead ends: 14738 [2022-07-12 12:28:09,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:09,027 INFO L413 NwaCegarLoop]: 4505 mSDtfsCounter, 2658 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2658 SdHoareTripleChecker+Valid, 7147 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:28:09,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2658 Valid, 7147 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:28:09,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14738 states. [2022-07-12 12:28:09,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14738 to 14728. [2022-07-12 12:28:09,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14728 states, 10090 states have (on average 1.3341922695738355) internal successors, (13462), 10351 states have internal predecessors, (13462), 3780 states have call successors, (3780), 858 states have call predecessors, (3780), 857 states have return successors, (4660), 3678 states have call predecessors, (4660), 3774 states have call successors, (4660) [2022-07-12 12:28:09,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14728 states to 14728 states and 21902 transitions. [2022-07-12 12:28:09,635 INFO L78 Accepts]: Start accepts. Automaton has 14728 states and 21902 transitions. Word has length 55 [2022-07-12 12:28:09,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:28:09,636 INFO L495 AbstractCegarLoop]: Abstraction has 14728 states and 21902 transitions. [2022-07-12 12:28:09,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-12 12:28:09,636 INFO L276 IsEmpty]: Start isEmpty. Operand 14728 states and 21902 transitions. [2022-07-12 12:28:09,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-12 12:28:09,637 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:28:09,637 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] [2022-07-12 12:28:09,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 12:28:09,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:28:09,865 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:28:09,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:28:09,865 INFO L85 PathProgramCache]: Analyzing trace with hash -434868597, now seen corresponding path program 1 times [2022-07-12 12:28:09,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:28:09,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410341757] [2022-07-12 12:28:09,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:28:09,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:28:09,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:28:09,868 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:28:09,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 12:28:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:11,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:28:11,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:28:11,440 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-12 12:28:11,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:28:11,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:28:11,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410341757] [2022-07-12 12:28:11,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410341757] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:28:11,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:28:11,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 12:28:11,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686288235] [2022-07-12 12:28:11,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:28:11,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:28:11,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:28:11,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:28:11,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:11,441 INFO L87 Difference]: Start difference. First operand 14728 states and 21902 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-12 12:28:11,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:28:11,761 INFO L93 Difference]: Finished difference Result 14736 states and 21909 transitions. [2022-07-12 12:28:11,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:28:11,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 56 [2022-07-12 12:28:11,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:28:11,829 INFO L225 Difference]: With dead ends: 14736 [2022-07-12 12:28:11,829 INFO L226 Difference]: Without dead ends: 14733 [2022-07-12 12:28:11,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:11,840 INFO L413 NwaCegarLoop]: 4503 mSDtfsCounter, 2655 mSDsluCounter, 2641 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2655 SdHoareTripleChecker+Valid, 7144 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:28:11,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2655 Valid, 7144 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:28:11,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14733 states. [2022-07-12 12:28:12,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14733 to 14729. [2022-07-12 12:28:12,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14729 states, 10091 states have (on average 1.3341591517193538) internal successors, (13463), 10352 states have internal predecessors, (13463), 3780 states have call successors, (3780), 858 states have call predecessors, (3780), 857 states have return successors, (4660), 3678 states have call predecessors, (4660), 3774 states have call successors, (4660) [2022-07-12 12:28:12,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14729 states to 14729 states and 21903 transitions. [2022-07-12 12:28:12,571 INFO L78 Accepts]: Start accepts. Automaton has 14729 states and 21903 transitions. Word has length 56 [2022-07-12 12:28:12,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:28:12,571 INFO L495 AbstractCegarLoop]: Abstraction has 14729 states and 21903 transitions. [2022-07-12 12:28:12,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-12 12:28:12,571 INFO L276 IsEmpty]: Start isEmpty. Operand 14729 states and 21903 transitions. [2022-07-12 12:28:12,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-12 12:28:12,573 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:28:12,573 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] [2022-07-12 12:28:12,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 12:28:12,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:28:12,799 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:28:12,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:28:12,800 INFO L85 PathProgramCache]: Analyzing trace with hash -596923202, now seen corresponding path program 1 times [2022-07-12 12:28:12,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:28:12,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872043882] [2022-07-12 12:28:12,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:28:12,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:28:12,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:28:12,812 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:28:12,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 12:28:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:14,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 1920 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:28:14,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:28:14,428 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-12 12:28:14,428 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:28:14,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:28:14,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872043882] [2022-07-12 12:28:14,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [872043882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:28:14,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:28:14,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 12:28:14,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729851257] [2022-07-12 12:28:14,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:28:14,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:28:14,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:28:14,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:28:14,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:14,430 INFO L87 Difference]: Start difference. First operand 14729 states and 21903 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-12 12:28:15,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:28:15,202 INFO L93 Difference]: Finished difference Result 44130 states and 67948 transitions. [2022-07-12 12:28:15,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:28:15,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2022-07-12 12:28:15,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:28:15,328 INFO L225 Difference]: With dead ends: 44130 [2022-07-12 12:28:15,328 INFO L226 Difference]: Without dead ends: 29416 [2022-07-12 12:28:15,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:15,388 INFO L413 NwaCegarLoop]: 3856 mSDtfsCounter, 2607 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2607 SdHoareTripleChecker+Valid, 6549 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:28:15,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2607 Valid, 6549 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:28:15,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29416 states. [2022-07-12 12:28:16,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29416 to 29403. [2022-07-12 12:28:16,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29403 states, 20137 states have (on average 1.3343099766598798) internal successors, (26869), 20654 states have internal predecessors, (26869), 7552 states have call successors, (7552), 1714 states have call predecessors, (7552), 1713 states have return successors, (10470), 7354 states have call predecessors, (10470), 7546 states have call successors, (10470) [2022-07-12 12:28:16,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29403 states to 29403 states and 44891 transitions. [2022-07-12 12:28:16,508 INFO L78 Accepts]: Start accepts. Automaton has 29403 states and 44891 transitions. Word has length 57 [2022-07-12 12:28:16,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:28:16,509 INFO L495 AbstractCegarLoop]: Abstraction has 29403 states and 44891 transitions. [2022-07-12 12:28:16,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-12 12:28:16,509 INFO L276 IsEmpty]: Start isEmpty. Operand 29403 states and 44891 transitions. [2022-07-12 12:28:16,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-12 12:28:16,510 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:28:16,510 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] [2022-07-12 12:28:16,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 12:28:16,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:28:16,723 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:28:16,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:28:16,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1325643794, now seen corresponding path program 1 times [2022-07-12 12:28:16,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:28:16,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090838767] [2022-07-12 12:28:16,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:28:16,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:28:16,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:28:16,727 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:28:16,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 12:28:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:18,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 1921 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:28:18,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:28:18,203 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-12 12:28:18,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:28:18,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:28:18,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090838767] [2022-07-12 12:28:18,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090838767] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:28:18,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:28:18,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 12:28:18,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51066916] [2022-07-12 12:28:18,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:28:18,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:28:18,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:28:18,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:28:18,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:18,205 INFO L87 Difference]: Start difference. First operand 29403 states and 44891 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-12 12:28:18,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:28:18,884 INFO L93 Difference]: Finished difference Result 29405 states and 44892 transitions. [2022-07-12 12:28:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:28:18,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 58 [2022-07-12 12:28:18,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:28:19,022 INFO L225 Difference]: With dead ends: 29405 [2022-07-12 12:28:19,022 INFO L226 Difference]: Without dead ends: 29391 [2022-07-12 12:28:19,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:19,044 INFO L413 NwaCegarLoop]: 2660 mSDtfsCounter, 2611 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2611 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:28:19,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2611 Valid, 2660 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 12:28:19,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29391 states. [2022-07-12 12:28:20,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29391 to 29391. [2022-07-12 12:28:20,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29391 states, 20127 states have (on average 1.3342276543945943) internal successors, (26854), 20643 states have internal predecessors, (26854), 7550 states have call successors, (7550), 1714 states have call predecessors, (7550), 1713 states have return successors, (10469), 7353 states have call predecessors, (10469), 7545 states have call successors, (10469) [2022-07-12 12:28:20,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29391 states to 29391 states and 44873 transitions. [2022-07-12 12:28:20,286 INFO L78 Accepts]: Start accepts. Automaton has 29391 states and 44873 transitions. Word has length 58 [2022-07-12 12:28:20,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:28:20,287 INFO L495 AbstractCegarLoop]: Abstraction has 29391 states and 44873 transitions. [2022-07-12 12:28:20,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-12 12:28:20,287 INFO L276 IsEmpty]: Start isEmpty. Operand 29391 states and 44873 transitions. [2022-07-12 12:28:20,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-12 12:28:20,290 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:28:20,290 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:28:20,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-12 12:28:20,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:28:20,516 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:28:20,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:28:20,517 INFO L85 PathProgramCache]: Analyzing trace with hash -446965858, now seen corresponding path program 1 times [2022-07-12 12:28:20,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:28:20,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900701775] [2022-07-12 12:28:20,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:28:20,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:28:20,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:28:20,520 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:28:20,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 12:28:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:22,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 2096 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:28:22,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:28:22,084 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-12 12:28:22,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:28:22,085 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:28:22,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900701775] [2022-07-12 12:28:22,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900701775] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:28:22,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:28:22,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:28:22,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802012061] [2022-07-12 12:28:22,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:28:22,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:28:22,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:28:22,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:28:22,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:22,086 INFO L87 Difference]: Start difference. First operand 29391 states and 44873 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 12:28:23,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:28:23,835 INFO L93 Difference]: Finished difference Result 81979 states and 125161 transitions. [2022-07-12 12:28:23,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:28:23,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2022-07-12 12:28:23,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:28:24,071 INFO L225 Difference]: With dead ends: 81979 [2022-07-12 12:28:24,071 INFO L226 Difference]: Without dead ends: 52601 [2022-07-12 12:28:24,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:24,164 INFO L413 NwaCegarLoop]: 4302 mSDtfsCounter, 2090 mSDsluCounter, 2626 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2090 SdHoareTripleChecker+Valid, 6928 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:28:24,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2090 Valid, 6928 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:28:24,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52601 states. [2022-07-12 12:28:25,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52601 to 52518. [2022-07-12 12:28:26,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52518 states, 36007 states have (on average 1.3371566639820034) internal successors, (48147), 37018 states have internal predecessors, (48147), 13309 states have call successors, (13309), 3202 states have call predecessors, (13309), 3201 states have return successors, (18736), 12905 states have call predecessors, (18736), 13304 states have call successors, (18736) [2022-07-12 12:28:26,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52518 states to 52518 states and 80192 transitions. [2022-07-12 12:28:26,282 INFO L78 Accepts]: Start accepts. Automaton has 52518 states and 80192 transitions. Word has length 77 [2022-07-12 12:28:26,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:28:26,283 INFO L495 AbstractCegarLoop]: Abstraction has 52518 states and 80192 transitions. [2022-07-12 12:28:26,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 12:28:26,283 INFO L276 IsEmpty]: Start isEmpty. Operand 52518 states and 80192 transitions. [2022-07-12 12:28:26,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 12:28:26,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:28:26,291 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:28:26,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 12:28:26,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:28:26,520 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:28:26,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:28:26,521 INFO L85 PathProgramCache]: Analyzing trace with hash 545616422, now seen corresponding path program 1 times [2022-07-12 12:28:26,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:28:26,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997518688] [2022-07-12 12:28:26,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:28:26,522 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:28:26,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:28:26,527 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:28:26,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 12:28:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:27,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 2158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:28:27,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:28:27,882 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-12 12:28:27,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:28:27,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:28:27,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997518688] [2022-07-12 12:28:27,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997518688] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:28:27,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:28:27,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:28:27,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342121260] [2022-07-12 12:28:27,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:28:27,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:28:27,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:28:27,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:28:27,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:27,883 INFO L87 Difference]: Start difference. First operand 52518 states and 80192 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 12:28:31,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:28:31,169 INFO L93 Difference]: Finished difference Result 147749 states and 231618 transitions. [2022-07-12 12:28:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:28:31,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 96 [2022-07-12 12:28:31,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:28:31,716 INFO L225 Difference]: With dead ends: 147749 [2022-07-12 12:28:31,717 INFO L226 Difference]: Without dead ends: 95246 [2022-07-12 12:28:31,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:31,940 INFO L413 NwaCegarLoop]: 3283 mSDtfsCounter, 2316 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 5818 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:28:31,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 5818 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 12:28:32,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95246 states. [2022-07-12 12:28:35,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95246 to 94613. [2022-07-12 12:28:35,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94613 states, 64652 states have (on average 1.333013673204232) internal successors, (86182), 66629 states have internal predecessors, (86182), 23918 states have call successors, (23918), 6043 states have call predecessors, (23918), 6042 states have return successors, (40241), 22980 states have call predecessors, (40241), 23913 states have call successors, (40241) [2022-07-12 12:28:36,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94613 states to 94613 states and 150341 transitions. [2022-07-12 12:28:36,571 INFO L78 Accepts]: Start accepts. Automaton has 94613 states and 150341 transitions. Word has length 96 [2022-07-12 12:28:36,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:28:36,572 INFO L495 AbstractCegarLoop]: Abstraction has 94613 states and 150341 transitions. [2022-07-12 12:28:36,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 12:28:36,572 INFO L276 IsEmpty]: Start isEmpty. Operand 94613 states and 150341 transitions. [2022-07-12 12:28:36,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-12 12:28:36,575 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:28:36,575 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-07-12 12:28:36,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 12:28:36,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:28:36,801 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:28:36,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:28:36,801 INFO L85 PathProgramCache]: Analyzing trace with hash -649234652, now seen corresponding path program 1 times [2022-07-12 12:28:36,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:28:36,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872337490] [2022-07-12 12:28:36,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:28:36,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:28:36,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:28:36,805 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:28:36,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 12:28:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:38,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 2187 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 12:28:38,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:28:38,241 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-12 12:28:38,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:28:38,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:28:38,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872337490] [2022-07-12 12:28:38,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [872337490] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:28:38,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:28:38,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 12:28:38,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064538974] [2022-07-12 12:28:38,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:28:38,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:28:38,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:28:38,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:28:38,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:38,243 INFO L87 Difference]: Start difference. First operand 94613 states and 150341 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 12:28:42,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:28:42,721 INFO L93 Difference]: Finished difference Result 230619 states and 366719 transitions. [2022-07-12 12:28:42,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:28:42,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 108 [2022-07-12 12:28:42,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:28:43,676 INFO L225 Difference]: With dead ends: 230619 [2022-07-12 12:28:43,676 INFO L226 Difference]: Without dead ends: 136030 [2022-07-12 12:28:44,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 12:28:44,047 INFO L413 NwaCegarLoop]: 4702 mSDtfsCounter, 2560 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2560 SdHoareTripleChecker+Valid, 6862 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:28:44,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2560 Valid, 6862 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 12:28:44,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136030 states. [2022-07-12 12:28:49,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136030 to 135907. [2022-07-12 12:28:49,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135907 states, 93100 states have (on average 1.3341783029001073) internal successors, (124212), 96035 states have internal predecessors, (124212), 33996 states have call successors, (33996), 8811 states have call predecessors, (33996), 8810 states have return successors, (57831), 32580 states have call predecessors, (57831), 33991 states have call successors, (57831) [2022-07-12 12:28:50,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135907 states to 135907 states and 216039 transitions. [2022-07-12 12:28:50,745 INFO L78 Accepts]: Start accepts. Automaton has 135907 states and 216039 transitions. Word has length 108 [2022-07-12 12:28:50,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:28:50,746 INFO L495 AbstractCegarLoop]: Abstraction has 135907 states and 216039 transitions. [2022-07-12 12:28:50,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 12:28:50,746 INFO L276 IsEmpty]: Start isEmpty. Operand 135907 states and 216039 transitions. [2022-07-12 12:28:50,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-12 12:28:50,761 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:28:50,761 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:28:50,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 12:28:50,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 12:28:50,983 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:28:50,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:28:50,984 INFO L85 PathProgramCache]: Analyzing trace with hash 377986603, now seen corresponding path program 1 times [2022-07-12 12:28:50,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 12:28:50,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209372260] [2022-07-12 12:28:50,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:28:50,986 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 12:28:50,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 12:28:50,987 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 12:28:50,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 12:28:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:28:52,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 2148 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 12:28:52,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:28:52,628 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-12 12:28:52,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:28:52,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 12:28:52,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209372260] [2022-07-12 12:28:52,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1209372260] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:28:52,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:28:52,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:28:52,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45667295] [2022-07-12 12:28:52,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:28:52,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:28:52,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 12:28:52,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:28:52,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:28:52,629 INFO L87 Difference]: Start difference. First operand 135907 states and 216039 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10)