./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN --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 5ff6018655fe07702c67ab951fde2a14f4cc3e435d922c4b833c80e1ee34a900 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:34:13,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:34:13,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:34:13,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:34:13,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:34:13,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:34:13,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:34:13,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:34:13,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:34:13,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:34:13,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:34:13,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:34:13,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:34:13,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:34:13,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:34:13,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:34:13,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:34:13,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:34:13,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:34:13,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:34:13,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:34:13,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:34:13,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:34:13,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:34:13,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:34:13,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:34:13,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:34:13,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:34:13,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:34:13,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:34:13,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:34:13,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:34:13,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:34:13,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:34:13,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:34:13,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:34:13,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:34:13,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:34:13,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:34:13,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:34:13,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:34:13,767 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:34:13,794 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:34:13,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:34:13,796 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:34:13,797 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:34:13,798 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:34:13,798 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:34:13,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:34:13,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:34:13,799 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:34:13,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:34:13,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:34:13,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:34:13,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:34:13,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:34:13,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:34:13,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:34:13,802 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:34:13,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:34:13,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:34:13,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:34:13,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:34:13,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:34:13,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:34:13,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:34:13,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:34:13,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:34:13,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:34:13,805 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:34:13,805 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:34:13,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:34:13,806 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ff6018655fe07702c67ab951fde2a14f4cc3e435d922c4b833c80e1ee34a900 [2022-11-20 10:34:14,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:34:14,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:34:14,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:34:14,157 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:34:14,158 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:34:14,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2022-11-20 10:34:17,303 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:34:18,257 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:34:18,258 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2022-11-20 10:34:18,346 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/data/543443ef4/9c5c5629f7d840fc9e13d55a1bab9298/FLAGd022decc1 [2022-11-20 10:34:18,374 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/data/543443ef4/9c5c5629f7d840fc9e13d55a1bab9298 [2022-11-20 10:34:18,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:34:18,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:34:18,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:34:18,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:34:18,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:34:18,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:34:18" (1/1) ... [2022-11-20 10:34:18,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2091f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:18, skipping insertion in model container [2022-11-20 10:34:18,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:34:18" (1/1) ... [2022-11-20 10:34:18,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:34:18,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:34:21,275 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) 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:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) 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) [2022-11-20 10:34:21,281 INFO L158 Benchmark]: Toolchain (without parser) took 2897.40ms. Allocated memory is still 167.8MB. Free memory was 99.4MB in the beginning and 106.8MB in the end (delta: -7.4MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2022-11-20 10:34:21,282 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:34:21,283 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2890.25ms. Allocated memory is still 167.8MB. Free memory was 99.4MB in the beginning and 106.8MB in the end (delta: -7.4MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2022-11-20 10:34:21,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2890.25ms. Allocated memory is still 167.8MB. Free memory was 99.4MB in the beginning and 106.8MB in the end (delta: -7.4MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN --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 5ff6018655fe07702c67ab951fde2a14f4cc3e435d922c4b833c80e1ee34a900 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:34:23,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:34:23,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:34:23,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:34:23,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:34:23,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:34:23,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:34:23,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:34:23,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:34:23,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:34:23,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:34:23,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:34:23,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:34:23,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:34:23,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:34:23,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:34:23,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:34:23,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:34:23,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:34:23,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:34:23,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:34:23,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:34:23,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:34:23,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:34:23,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:34:23,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:34:23,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:34:23,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:34:23,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:34:23,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:34:23,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:34:23,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:34:23,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:34:23,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:34:23,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:34:23,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:34:23,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:34:23,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:34:23,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:34:23,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:34:23,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:34:23,921 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:34:23,957 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:34:23,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:34:23,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:34:23,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:34:23,961 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:34:23,962 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:34:23,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:34:23,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:34:23,963 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:34:23,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:34:23,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:34:23,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:34:23,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:34:23,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:34:23,966 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:34:23,966 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:34:23,966 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:34:23,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:34:23,966 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:34:23,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:34:23,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:34:23,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:34:23,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:34:23,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:34:23,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:34:23,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:34:23,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:34:23,969 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:34:23,969 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:34:23,969 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:34:23,969 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:34:23,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:34:23,970 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:34:23,970 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ff6018655fe07702c67ab951fde2a14f4cc3e435d922c4b833c80e1ee34a900 [2022-11-20 10:34:24,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:34:24,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:34:24,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:34:24,436 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:34:24,436 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:34:24,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2022-11-20 10:34:27,767 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:34:29,001 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:34:29,002 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2022-11-20 10:34:29,125 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/data/9091ad3a8/4918d955aa5b44b992507145e42adefc/FLAGbe7873372 [2022-11-20 10:34:29,147 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/data/9091ad3a8/4918d955aa5b44b992507145e42adefc [2022-11-20 10:34:29,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:34:29,153 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:34:29,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:34:29,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:34:29,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:34:29,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:34:29" (1/1) ... [2022-11-20 10:34:29,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2285517a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:29, skipping insertion in model container [2022-11-20 10:34:29,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:34:29" (1/1) ... [2022-11-20 10:34:29,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:34:29,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:34:40,428 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i[762860,762873] [2022-11-20 10:34:40,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:34:40,663 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:34:40,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:34:41,570 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i[762860,762873] [2022-11-20 10:34:41,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:34:41,700 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:34:42,682 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i[762860,762873] [2022-11-20 10:34:42,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:34:43,201 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:34:43,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:43 WrapperNode [2022-11-20 10:34:43,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:34:43,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:34:43,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:34:43,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:34:43,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:43" (1/1) ... [2022-11-20 10:34:43,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:43" (1/1) ... [2022-11-20 10:34:43,870 INFO L138 Inliner]: procedures = 884, calls = 7956, calls flagged for inlining = 400, calls inlined = 338, statements flattened = 15658 [2022-11-20 10:34:43,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:34:43,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:34:43,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:34:43,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:34:43,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:43" (1/1) ... [2022-11-20 10:34:43,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:43" (1/1) ... [2022-11-20 10:34:44,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:43" (1/1) ... [2022-11-20 10:34:44,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:43" (1/1) ... [2022-11-20 10:34:44,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:43" (1/1) ... [2022-11-20 10:34:44,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:43" (1/1) ... [2022-11-20 10:34:44,716 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:43" (1/1) ... [2022-11-20 10:34:44,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:43" (1/1) ... [2022-11-20 10:34:44,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:34:44,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:34:44,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:34:44,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:34:44,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:43" (1/1) ... [2022-11-20 10:34:44,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:34:44,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:34:44,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:34:45,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:34:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-20 10:34:45,117 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-20 10:34:45,117 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_txskb [2022-11-20 10:34:45,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_txskb [2022-11-20 10:34:45,117 INFO L130 BoogieDeclarations]: Found specification of procedure s6_to_int [2022-11-20 10:34:45,117 INFO L138 BoogieDeclarations]: Found implementation of procedure s6_to_int [2022-11-20 10:34:45,117 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_urb_has_error [2022-11-20 10:34:45,118 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_urb_has_error [2022-11-20 10:34:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pad [2022-11-20 10:34:45,118 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pad [2022-11-20 10:34:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~X~~u8~0~TO~VOID [2022-11-20 10:34:45,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~X~~u8~0~TO~VOID [2022-11-20 10:34:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_set_ampdu_factor [2022-11-20 10:34:45,119 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_set_ampdu_factor [2022-11-20 10:34:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 10:34:45,119 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 10:34:45,119 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_clear [2022-11-20 10:34:45,120 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_clear [2022-11-20 10:34:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_rmw [2022-11-20 10:34:45,120 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_rmw [2022-11-20 10:34:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rf_rmw [2022-11-20 10:34:45,120 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rf_rmw [2022-11-20 10:34:45,120 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~TO~VOID [2022-11-20 10:34:45,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~TO~VOID [2022-11-20 10:34:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 10:34:45,121 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 10:34:45,121 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_bw_filter [2022-11-20 10:34:45,121 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_bw_filter [2022-11-20 10:34:45,122 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_rmc [2022-11-20 10:34:45,122 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_rmc [2022-11-20 10:34:45,122 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 10:34:45,122 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 10:34:45,122 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_rmw [2022-11-20 10:34:45,123 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_rmw [2022-11-20 10:34:45,123 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2022-11-20 10:34:45,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2022-11-20 10:34:45,123 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sta_add [2022-11-20 10:34:45,123 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sta_add [2022-11-20 10:34:45,123 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-20 10:34:45,124 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-20 10:34:45,124 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_vendor_single_wr [2022-11-20 10:34:45,124 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_vendor_single_wr [2022-11-20 10:34:45,124 INFO L130 BoogieDeclarations]: Found specification of procedure trace_event_raw_init [2022-11-20 10:34:45,124 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_event_raw_init [2022-11-20 10:34:45,125 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_rts_threshold [2022-11-20 10:34:45,125 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_rts_threshold [2022-11-20 10:34:45,125 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-20 10:34:45,125 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-20 10:34:45,125 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-11-20 10:34:45,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-11-20 10:34:45,126 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_config [2022-11-20 10:34:45,126 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_config [2022-11-20 10:34:45,126 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_rr [2022-11-20 10:34:45,127 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_rr [2022-11-20 10:34:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_rr [2022-11-20 10:34:45,127 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_rr [2022-11-20 10:34:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure s6_validate [2022-11-20 10:34:45,127 INFO L138 BoogieDeclarations]: Found implementation of procedure s6_validate [2022-11-20 10:34:45,127 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-20 10:34:45,128 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-20 10:34:45,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 10:34:45,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 10:34:45,128 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_usb_free_buf [2022-11-20 10:34:45,128 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_usb_free_buf [2022-11-20 10:34:45,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:34:45,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:34:45,129 INFO L130 BoogieDeclarations]: Found specification of procedure field_valid [2022-11-20 10:34:45,129 INFO L138 BoogieDeclarations]: Found implementation of procedure field_valid [2022-11-20 10:34:45,129 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 10:34:45,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 10:34:45,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:34:45,130 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 10:34:45,130 INFO L130 BoogieDeclarations]: Found specification of procedure q2hwq [2022-11-20 10:34:45,130 INFO L138 BoogieDeclarations]: Found implementation of procedure q2hwq [2022-11-20 10:34:45,130 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2022-11-20 10:34:45,130 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2022-11-20 10:34:45,131 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work___0 [2022-11-20 10:34:45,131 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work___0 [2022-11-20 10:34:45,131 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-20 10:34:45,131 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-20 10:34:45,131 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-11-20 10:34:45,132 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-11-20 10:34:45,132 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 10:34:45,132 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 10:34:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_u32 [2022-11-20 10:34:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_u32 [2022-11-20 10:34:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure int_to_s6 [2022-11-20 10:34:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure int_to_s6 [2022-11-20 10:34:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_agc_default [2022-11-20 10:34:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_agc_default [2022-11-20 10:34:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_dma_cleanup [2022-11-20 10:34:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_dma_cleanup [2022-11-20 10:34:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_wr [2022-11-20 10:34:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_wr [2022-11-20 10:34:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 10:34:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 10:34:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_wr [2022-11-20 10:34:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_wr [2022-11-20 10:34:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-20 10:34:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-20 10:34:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:34:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:34:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 10:34:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 10:34:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:34:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure trace_event_reg [2022-11-20 10:34:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_event_reg [2022-11-20 10:34:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-20 10:34:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-20 10:34:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-11-20 10:34:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-11-20 10:34:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-20 10:34:45,152 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-20 10:34:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-20 10:34:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_usb_alloc_buf [2022-11-20 10:34:45,152 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_usb_alloc_buf [2022-11-20 10:34:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-11-20 10:34:45,153 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-11-20 10:34:45,153 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 10:34:45,153 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 10:34:45,153 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-20 10:34:45,153 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-20 10:34:45,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 10:34:45,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 10:34:45,154 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-20 10:34:45,154 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-20 10:34:45,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:34:45,154 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:34:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_init_hardware [2022-11-20 10:34:45,155 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_init_hardware [2022-11-20 10:34:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_submit_rx_buf [2022-11-20 10:34:45,155 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_submit_rx_buf [2022-11-20 10:34:45,155 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2022-11-20 10:34:45,155 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2022-11-20 10:34:45,156 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-11-20 10:34:45,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2022-11-20 10:34:45,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:34:45,156 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 10:34:45,156 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 10:34:45,156 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2022-11-20 10:34:45,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2022-11-20 10:34:45,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:34:45,157 INFO L130 BoogieDeclarations]: Found specification of procedure simple_attr_write [2022-11-20 10:34:45,157 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_attr_write [2022-11-20 10:34:45,157 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_remove_interface [2022-11-20 10:34:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_remove_interface [2022-11-20 10:34:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2022-11-20 10:34:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2022-11-20 10:34:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-20 10:34:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-20 10:34:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_2 [2022-11-20 10:34:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_2 [2022-11-20 10:34:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure trace_read_temp [2022-11-20 10:34:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_read_temp [2022-11-20 10:34:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_cmd_deinit [2022-11-20 10:34:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_cmd_deinit [2022-11-20 10:34:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-20 10:34:45,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-20 10:34:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-20 10:34:45,160 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-20 10:34:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2022-11-20 10:34:45,160 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2022-11-20 10:34:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_msg_alloc [2022-11-20 10:34:45,161 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_msg_alloc [2022-11-20 10:34:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-20 10:34:45,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-20 10:34:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 10:34:45,161 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 10:34:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_vco_cal [2022-11-20 10:34:45,162 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_vco_cal [2022-11-20 10:34:45,162 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~TO~VOID [2022-11-20 10:34:45,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~TO~VOID [2022-11-20 10:34:45,162 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-20 10:34:45,162 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-20 10:34:45,162 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2022-11-20 10:34:45,163 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2022-11-20 10:34:45,163 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rr [2022-11-20 10:34:45,163 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rr [2022-11-20 10:34:45,163 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 10:34:45,163 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 10:34:45,163 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-20 10:34:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-20 10:34:45,164 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_set_ctrlch [2022-11-20 10:34:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_set_ctrlch [2022-11-20 10:34:45,164 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-20 10:34:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-20 10:34:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 10:34:45,171 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_vendor_request [2022-11-20 10:34:45,171 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_vendor_request [2022-11-20 10:34:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 10:34:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_set [2022-11-20 10:34:45,172 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_set [2022-11-20 10:34:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:34:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 10:34:45,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:34:45,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:34:45,173 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_tx [2022-11-20 10:34:45,173 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_tx [2022-11-20 10:34:45,173 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_configure_filter [2022-11-20 10:34:45,173 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_configure_filter [2022-11-20 10:34:45,173 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_wr [2022-11-20 10:34:45,174 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_wr [2022-11-20 10:34:45,174 INFO L130 BoogieDeclarations]: Found specification of procedure static_key_false [2022-11-20 10:34:45,174 INFO L138 BoogieDeclarations]: Found implementation of procedure static_key_false [2022-11-20 10:34:45,174 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2022-11-20 10:34:45,174 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2022-11-20 10:34:45,174 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_config_tsf [2022-11-20 10:34:45,175 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_config_tsf [2022-11-20 10:34:45,175 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_temp_comp [2022-11-20 10:34:45,175 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_temp_comp [2022-11-20 10:34:45,175 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rxdc_cal [2022-11-20 10:34:45,175 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rxdc_cal [2022-11-20 10:34:45,175 INFO L130 BoogieDeclarations]: Found specification of procedure field_validate [2022-11-20 10:34:45,175 INFO L138 BoogieDeclarations]: Found implementation of procedure field_validate [2022-11-20 10:34:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2022-11-20 10:34:45,176 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2022-11-20 10:34:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_resume [2022-11-20 10:34:45,176 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_resume [2022-11-20 10:34:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-20 10:34:45,176 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-20 10:34:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-11-20 10:34:45,177 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-11-20 10:34:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-20 10:34:45,177 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-20 10:34:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 10:34:45,177 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 10:34:45,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-11-20 10:34:45,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-11-20 10:34:45,178 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-20 10:34:45,178 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-20 10:34:45,178 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-20 10:34:45,178 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-20 10:34:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-20 10:34:45,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-20 10:34:45,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:34:45,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:34:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_ampdu_action [2022-11-20 10:34:45,195 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_ampdu_action [2022-11-20 10:34:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-20 10:34:45,195 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-20 10:34:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_addr_wr [2022-11-20 10:34:45,196 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_addr_wr [2022-11-20 10:34:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_temp [2022-11-20 10:34:45,196 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_temp [2022-11-20 10:34:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_function_select [2022-11-20 10:34:45,196 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_function_select [2022-11-20 10:34:45,197 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-11-20 10:34:45,197 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-11-20 10:34:45,197 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_sta_rate_tbl_update [2022-11-20 10:34:45,197 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_sta_rate_tbl_update [2022-11-20 10:34:45,197 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_disconnect [2022-11-20 10:34:45,197 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_disconnect [2022-11-20 10:34:45,198 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-11-20 10:34:45,198 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-11-20 10:34:45,198 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_chip_onoff [2022-11-20 10:34:45,198 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_chip_onoff [2022-11-20 10:34:45,198 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_key [2022-11-20 10:34:45,199 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_key [2022-11-20 10:34:45,199 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 10:34:45,199 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 10:34:45,199 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-11-20 10:34:45,199 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-11-20 10:34:45,199 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_set_bw [2022-11-20 10:34:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_set_bw [2022-11-20 10:34:45,200 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_mac_wcid_set_key [2022-11-20 10:34:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_mac_wcid_set_key [2022-11-20 10:34:45,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:34:45,200 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_set_ctrlch [2022-11-20 10:34:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_set_ctrlch [2022-11-20 10:34:45,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 10:34:45,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:34:45,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:34:45,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 10:34:45,201 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rf_wr [2022-11-20 10:34:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rf_wr [2022-11-20 10:34:45,201 INFO L130 BoogieDeclarations]: Found specification of procedure trace_raw_output_prep [2022-11-20 10:34:45,202 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_raw_output_prep [2022-11-20 10:34:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 10:34:45,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 10:34:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_efuse_read [2022-11-20 10:34:45,202 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_efuse_read [2022-11-20 10:34:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_cleanup [2022-11-20 10:34:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_cleanup [2022-11-20 10:34:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rf_rr [2022-11-20 10:34:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rf_rr [2022-11-20 10:34:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get_queue_mapping [2022-11-20 10:34:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get_queue_mapping [2022-11-20 10:34:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:34:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:34:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2022-11-20 10:34:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2022-11-20 10:34:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_mac_tx_rate_val [2022-11-20 10:34:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_mac_tx_rate_val [2022-11-20 10:34:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_pages [2022-11-20 10:34:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_pages [2022-11-20 10:34:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-20 10:34:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-20 10:34:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-20 10:34:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-20 10:34:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 10:34:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 10:34:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sw_scan_complete [2022-11-20 10:34:45,206 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sw_scan_complete [2022-11-20 10:34:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure trace_define_field [2022-11-20 10:34:45,206 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_define_field [2022-11-20 10:34:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put_le32 [2022-11-20 10:34:45,206 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put_le32 [2022-11-20 10:34:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-11-20 10:34:45,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-11-20 10:34:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_wr_copy [2022-11-20 10:34:45,207 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_wr_copy [2022-11-20 10:34:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_add_interface [2022-11-20 10:34:45,207 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_add_interface [2022-11-20 10:34:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-11-20 10:34:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-11-20 10:34:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_usb_submit_buf [2022-11-20 10:34:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_usb_submit_buf [2022-11-20 10:34:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-11-20 10:34:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-11-20 10:34:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_dma_fw [2022-11-20 10:34:45,209 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_dma_fw [2022-11-20 10:34:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 10:34:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 10:34:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 10:34:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 10:34:45,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 10:34:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 10:34:45,210 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 10:34:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 10:34:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-20 10:34:45,210 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-20 10:34:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-20 10:34:45,211 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-20 10:34:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:34:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-20 10:34:45,211 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-20 10:34:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure lin2dBd [2022-11-20 10:34:45,211 INFO L138 BoogieDeclarations]: Found implementation of procedure lin2dBd [2022-11-20 10:34:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:34:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:34:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:34:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:34:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:34:45,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:34:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-20 10:34:45,213 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-20 10:34:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-20 10:34:45,213 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-20 10:34:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_to_usb_dev [2022-11-20 10:34:45,213 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_to_usb_dev [2022-11-20 10:34:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_r47_get [2022-11-20 10:34:45,214 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_r47_get [2022-11-20 10:34:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_tx_stat [2022-11-20 10:34:45,214 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_tx_stat [2022-11-20 10:34:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sta_notify [2022-11-20 10:34:45,218 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sta_notify [2022-11-20 10:34:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-20 10:34:45,219 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-20 10:34:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-20 10:34:45,219 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-20 10:34:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_conf_tx [2022-11-20 10:34:45,219 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_conf_tx [2022-11-20 10:34:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-20 10:34:45,220 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-20 10:34:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:34:45,220 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:34:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure trace_handle_return [2022-11-20 10:34:45,220 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_handle_return [2022-11-20 10:34:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_hdrlen_from_skb [2022-11-20 10:34:45,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_hdrlen_from_skb [2022-11-20 10:34:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_wcid_setup [2022-11-20 10:34:45,221 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_wcid_setup [2022-11-20 10:34:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-20 10:34:45,223 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-20 10:34:45,224 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 10:34:45,224 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 10:34:45,224 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_burst_write_regs [2022-11-20 10:34:45,229 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_burst_write_regs [2022-11-20 10:34:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace [2022-11-20 10:34:45,230 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace [2022-11-20 10:34:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-20 10:34:45,230 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-20 10:34:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-20 10:34:45,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-20 10:34:45,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:34:45,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:34:45,237 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-20 10:34:45,242 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-20 10:34:45,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:34:45,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:34:45,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:34:45,243 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 10:34:45,243 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 10:34:45,243 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_write_reg_pairs [2022-11-20 10:34:45,243 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_write_reg_pairs [2022-11-20 10:34:45,243 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-20 10:34:45,244 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-20 10:34:45,244 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_mac_get_key_info [2022-11-20 10:34:45,244 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_mac_get_key_info [2022-11-20 10:34:45,244 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-11-20 10:34:45,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-11-20 10:34:45,244 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-20 10:34:45,244 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-20 10:34:45,244 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sta_remove [2022-11-20 10:34:45,245 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sta_remove [2022-11-20 10:34:45,245 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-20 10:34:45,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-20 10:34:45,245 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bss_info_changed [2022-11-20 10:34:45,245 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bss_info_changed [2022-11-20 10:34:45,245 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 10:34:45,245 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 10:34:45,245 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-20 10:34:45,245 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-20 10:34:45,245 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_wait_asic_ready [2022-11-20 10:34:45,245 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_wait_asic_ready [2022-11-20 10:34:45,246 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-20 10:34:45,246 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-20 10:34:45,246 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sw_scan [2022-11-20 10:34:45,246 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sw_scan [2022-11-20 10:34:45,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 10:34:45,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 10:34:45,246 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-20 10:34:45,246 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-20 10:34:45,246 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_calibrate [2022-11-20 10:34:45,246 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_calibrate [2022-11-20 10:34:45,247 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_msg_send [2022-11-20 10:34:45,247 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_msg_send [2022-11-20 10:34:45,247 INFO L130 BoogieDeclarations]: Found specification of procedure firmware_running [2022-11-20 10:34:45,247 INFO L138 BoogieDeclarations]: Found implementation of procedure firmware_running [2022-11-20 10:34:45,247 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rmw [2022-11-20 10:34:45,247 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rmw [2022-11-20 10:34:45,247 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_poll [2022-11-20 10:34:45,247 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_poll [2022-11-20 10:34:45,247 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-20 10:34:45,247 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-20 10:34:45,247 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_power_rate [2022-11-20 10:34:45,248 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_power_rate [2022-11-20 10:34:45,248 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 10:34:45,248 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 10:34:45,248 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-20 10:34:45,248 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-20 10:34:45,248 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_has_tssi [2022-11-20 10:34:45,248 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_has_tssi [2022-11-20 10:34:45,248 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_poll_msec [2022-11-20 10:34:45,248 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_poll_msec [2022-11-20 10:34:47,226 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:34:47,231 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:34:47,497 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:37:16,231 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:37:16,275 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:37:16,275 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:37:16,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:16 BoogieIcfgContainer [2022-11-20 10:37:16,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:37:16,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:37:16,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:37:16,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:37:16,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:34:29" (1/3) ... [2022-11-20 10:37:16,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d593fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:37:16, skipping insertion in model container [2022-11-20 10:37:16,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:43" (2/3) ... [2022-11-20 10:37:16,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d593fa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:37:16, skipping insertion in model container [2022-11-20 10:37:16,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:37:16" (3/3) ... [2022-11-20 10:37:16,296 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2022-11-20 10:37:16,317 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:37:16,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:37:16,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:37:16,470 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@698b6ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:37:16,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:37:16,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 4934 states, 3275 states have (on average 1.3526717557251908) internal successors, (4430), 3421 states have internal predecessors, (4430), 1452 states have call successors, (1452), 206 states have call predecessors, (1452), 205 states have return successors, (1413), 1409 states have call predecessors, (1413), 1413 states have call successors, (1413) [2022-11-20 10:37:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2022-11-20 10:37:16,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:16,598 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:16,598 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:37:16,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:16,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1068331376, now seen corresponding path program 1 times [2022-11-20 10:37:16,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:37:16,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270984351] [2022-11-20 10:37:16,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:16,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:16,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:37:16,653 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:37:16,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 10:37:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:37:41,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 10131 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 10:37:41,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:37:41,573 INFO L134 CoverageAnalysis]: Checked inductivity of 5511 backedges. 2637 proven. 0 refuted. 0 times theorem prover too weak. 2874 trivial. 0 not checked. [2022-11-20 10:37:41,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:37:41,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:37:41,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270984351] [2022-11-20 10:37:41,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1270984351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:37:41,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:37:41,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:37:41,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530270269] [2022-11-20 10:37:41,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:37:41,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:37:41,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:37:41,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:37:41,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:37:41,623 INFO L87 Difference]: Start difference. First operand has 4934 states, 3275 states have (on average 1.3526717557251908) internal successors, (4430), 3421 states have internal predecessors, (4430), 1452 states have call successors, (1452), 206 states have call predecessors, (1452), 205 states have return successors, (1413), 1409 states have call predecessors, (1413), 1413 states have call successors, (1413) Second operand has 2 states, 2 states have (on average 61.0) internal successors, (122), 2 states have internal predecessors, (122), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:37:42,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:37:42,010 INFO L93 Difference]: Finished difference Result 9863 states and 14822 transitions. [2022-11-20 10:37:42,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:37:42,013 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 61.0) internal successors, (122), 2 states have internal predecessors, (122), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 630 [2022-11-20 10:37:42,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:37:42,082 INFO L225 Difference]: With dead ends: 9863 [2022-11-20 10:37:42,084 INFO L226 Difference]: Without dead ends: 4881 [2022-11-20 10:37:42,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 629 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:37:42,141 INFO L413 NwaCegarLoop]: 7291 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7291 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 [2022-11-20 10:37:42,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7291 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:37:42,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4881 states. [2022-11-20 10:37:42,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4881 to 4881. [2022-11-20 10:37:42,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4881 states, 3263 states have (on average 1.3398712840943916) internal successors, (4372), 3368 states have internal predecessors, (4372), 1413 states have call successors, (1413), 205 states have call predecessors, (1413), 204 states have return successors, (1412), 1408 states have call predecessors, (1412), 1412 states have call successors, (1412) [2022-11-20 10:37:42,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4881 states to 4881 states and 7197 transitions. [2022-11-20 10:37:42,581 INFO L78 Accepts]: Start accepts. Automaton has 4881 states and 7197 transitions. Word has length 630 [2022-11-20 10:37:42,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:37:42,583 INFO L495 AbstractCegarLoop]: Abstraction has 4881 states and 7197 transitions. [2022-11-20 10:37:42,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 61.0) internal successors, (122), 2 states have internal predecessors, (122), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 10:37:42,584 INFO L276 IsEmpty]: Start isEmpty. Operand 4881 states and 7197 transitions. [2022-11-20 10:37:42,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2022-11-20 10:37:42,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:37:42,630 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:37:42,831 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forcibly destroying the process [2022-11-20 10:37:42,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:37:42,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:42,914 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:37:42,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:37:42,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1346593474, now seen corresponding path program 1 times [2022-11-20 10:37:42,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:37:42,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976070144] [2022-11-20 10:37:42,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:37:42,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:37:42,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:37:42,934 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:37:42,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 10:38:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:07,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 10131 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:38:07,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:38:08,298 INFO L134 CoverageAnalysis]: Checked inductivity of 5511 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 5048 trivial. 0 not checked. [2022-11-20 10:38:08,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:38:08,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:38:08,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976070144] [2022-11-20 10:38:08,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976070144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:38:08,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:38:08,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:38:08,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622551815] [2022-11-20 10:38:08,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:38:08,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:38:08,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:38:08,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:38:08,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:38:08,303 INFO L87 Difference]: Start difference. First operand 4881 states and 7197 transitions. Second operand has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 3 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2022-11-20 10:38:14,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:38:14,819 INFO L93 Difference]: Finished difference Result 9762 states and 14532 transitions. [2022-11-20 10:38:14,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:38:14,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 3 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 630 [2022-11-20 10:38:14,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:38:14,858 INFO L225 Difference]: With dead ends: 9762 [2022-11-20 10:38:14,858 INFO L226 Difference]: Without dead ends: 4882 [2022-11-20 10:38:14,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:38:14,904 INFO L413 NwaCegarLoop]: 7140 mSDtfsCounter, 6 mSDsluCounter, 28436 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 35576 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:38:14,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 35576 Invalid, 464 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-20 10:38:14,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4882 states. [2022-11-20 10:38:15,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4882 to 4882. [2022-11-20 10:38:15,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4882 states, 3264 states have (on average 1.3397671568627452) internal successors, (4373), 3369 states have internal predecessors, (4373), 1413 states have call successors, (1413), 205 states have call predecessors, (1413), 204 states have return successors, (1412), 1408 states have call predecessors, (1412), 1412 states have call successors, (1412) [2022-11-20 10:38:15,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4882 states to 4882 states and 7198 transitions. [2022-11-20 10:38:15,194 INFO L78 Accepts]: Start accepts. Automaton has 4882 states and 7198 transitions. Word has length 630 [2022-11-20 10:38:15,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:38:15,195 INFO L495 AbstractCegarLoop]: Abstraction has 4882 states and 7198 transitions. [2022-11-20 10:38:15,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 3 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2022-11-20 10:38:15,196 INFO L276 IsEmpty]: Start isEmpty. Operand 4882 states and 7198 transitions. [2022-11-20 10:38:15,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2022-11-20 10:38:15,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:38:15,230 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:15,451 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forcibly destroying the process [2022-11-20 10:38:15,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:38:15,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:38:15,473 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:38:15,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:15,473 INFO L85 PathProgramCache]: Analyzing trace with hash -845733196, now seen corresponding path program 1 times [2022-11-20 10:38:15,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:38:15,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529108591] [2022-11-20 10:38:15,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:15,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:38:15,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:38:15,492 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:38:15,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 10:38:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:38:40,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 10263 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:38:40,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:38:41,080 INFO L134 CoverageAnalysis]: Checked inductivity of 5721 backedges. 496 proven. 1 refuted. 0 times theorem prover too weak. 5224 trivial. 0 not checked. [2022-11-20 10:38:41,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:38:44,046 INFO L134 CoverageAnalysis]: Checked inductivity of 5721 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 5610 trivial. 0 not checked. [2022-11-20 10:38:44,047 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:38:44,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529108591] [2022-11-20 10:38:44,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529108591] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:38:44,047 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:38:44,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-20 10:38:44,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553439076] [2022-11-20 10:38:44,048 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:38:44,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:38:44,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:38:44,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:38:44,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:38:44,051 INFO L87 Difference]: Start difference. First operand 4882 states and 7198 transitions. Second operand has 11 states, 9 states have (on average 15.555555555555555) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (96), 2 states have call predecessors, (96), 5 states have return successors, (91), 4 states have call predecessors, (91), 4 states have call successors, (91) [2022-11-20 10:38:54,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:38:54,796 INFO L93 Difference]: Finished difference Result 9774 states and 14548 transitions. [2022-11-20 10:38:54,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 10:38:54,798 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 15.555555555555555) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (96), 2 states have call predecessors, (96), 5 states have return successors, (91), 4 states have call predecessors, (91), 4 states have call successors, (91) Word has length 642 [2022-11-20 10:38:54,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:38:54,841 INFO L225 Difference]: With dead ends: 9774 [2022-11-20 10:38:54,842 INFO L226 Difference]: Without dead ends: 4898 [2022-11-20 10:38:54,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1286 GetRequests, 1273 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:38:54,882 INFO L413 NwaCegarLoop]: 7143 mSDtfsCounter, 13 mSDsluCounter, 42654 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 49797 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:38:54,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 49797 Invalid, 696 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [80 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2022-11-20 10:38:54,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2022-11-20 10:38:55,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 4898. [2022-11-20 10:38:55,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4898 states, 3275 states have (on average 1.3389312977099237) internal successors, (4385), 3380 states have internal predecessors, (4385), 1415 states have call successors, (1415), 208 states have call predecessors, (1415), 207 states have return successors, (1414), 1410 states have call predecessors, (1414), 1414 states have call successors, (1414) [2022-11-20 10:38:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4898 states to 4898 states and 7214 transitions. [2022-11-20 10:38:55,131 INFO L78 Accepts]: Start accepts. Automaton has 4898 states and 7214 transitions. Word has length 642 [2022-11-20 10:38:55,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:38:55,132 INFO L495 AbstractCegarLoop]: Abstraction has 4898 states and 7214 transitions. [2022-11-20 10:38:55,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 15.555555555555555) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (96), 2 states have call predecessors, (96), 5 states have return successors, (91), 4 states have call predecessors, (91), 4 states have call successors, (91) [2022-11-20 10:38:55,132 INFO L276 IsEmpty]: Start isEmpty. Operand 4898 states and 7214 transitions. [2022-11-20 10:38:55,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 653 [2022-11-20 10:38:55,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:38:55,158 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 23, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:38:55,383 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forcibly destroying the process [2022-11-20 10:38:55,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:38:55,384 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:38:55,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:38:55,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1118092613, now seen corresponding path program 1 times [2022-11-20 10:38:55,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:38:55,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:38:55,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164790930] [2022-11-20 10:38:55,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:38:55,396 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:38:55,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:38:55,397 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:38:55,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 10:39:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:39:20,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 10383 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:39:20,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:39:21,565 INFO L134 CoverageAnalysis]: Checked inductivity of 6040 backedges. 548 proven. 3 refuted. 0 times theorem prover too weak. 5489 trivial. 0 not checked. [2022-11-20 10:39:21,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:39:24,988 INFO L134 CoverageAnalysis]: Checked inductivity of 6040 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 5875 trivial. 0 not checked. [2022-11-20 10:39:24,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:39:24,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164790930] [2022-11-20 10:39:24,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164790930] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:39:24,989 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:39:24,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-20 10:39:24,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598364755] [2022-11-20 10:39:24,990 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:39:24,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 10:39:24,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:39:24,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 10:39:24,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:39:24,993 INFO L87 Difference]: Start difference. First operand 4898 states and 7214 transitions. Second operand has 13 states, 11 states have (on average 12.818181818181818) internal successors, (141), 13 states have internal predecessors, (141), 4 states have call successors, (96), 2 states have call predecessors, (96), 5 states have return successors, (91), 4 states have call predecessors, (91), 4 states have call successors, (91) [2022-11-20 10:39:34,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:39:34,816 INFO L93 Difference]: Finished difference Result 9805 states and 14578 transitions. [2022-11-20 10:39:34,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:39:34,818 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 12.818181818181818) internal successors, (141), 13 states have internal predecessors, (141), 4 states have call successors, (96), 2 states have call predecessors, (96), 5 states have return successors, (91), 4 states have call predecessors, (91), 4 states have call successors, (91) Word has length 652 [2022-11-20 10:39:34,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:39:34,855 INFO L225 Difference]: With dead ends: 9805 [2022-11-20 10:39:34,855 INFO L226 Difference]: Without dead ends: 4910 [2022-11-20 10:39:34,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1307 GetRequests, 1291 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:39:34,888 INFO L413 NwaCegarLoop]: 7144 mSDtfsCounter, 22 mSDsluCounter, 42709 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 49853 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:39:34,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 49853 Invalid, 711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [99 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-11-20 10:39:34,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4910 states. [2022-11-20 10:39:35,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4910 to 4910. [2022-11-20 10:39:35,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4910 states, 3284 states have (on average 1.338611449451888) internal successors, (4396), 3389 states have internal predecessors, (4396), 1416 states have call successors, (1416), 210 states have call predecessors, (1416), 209 states have return successors, (1415), 1411 states have call predecessors, (1415), 1415 states have call successors, (1415) [2022-11-20 10:39:35,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4910 states to 4910 states and 7227 transitions. [2022-11-20 10:39:35,091 INFO L78 Accepts]: Start accepts. Automaton has 4910 states and 7227 transitions. Word has length 652 [2022-11-20 10:39:35,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:39:35,092 INFO L495 AbstractCegarLoop]: Abstraction has 4910 states and 7227 transitions. [2022-11-20 10:39:35,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 12.818181818181818) internal successors, (141), 13 states have internal predecessors, (141), 4 states have call successors, (96), 2 states have call predecessors, (96), 5 states have return successors, (91), 4 states have call predecessors, (91), 4 states have call successors, (91) [2022-11-20 10:39:35,092 INFO L276 IsEmpty]: Start isEmpty. Operand 4910 states and 7227 transitions. [2022-11-20 10:39:35,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2022-11-20 10:39:35,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:39:35,112 INFO L195 NwaCegarLoop]: trace histogram [32, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:39:35,334 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forcibly destroying the process [2022-11-20 10:39:35,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:39:35,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:39:35,347 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:39:35,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:39:35,347 INFO L85 PathProgramCache]: Analyzing trace with hash 160683228, now seen corresponding path program 2 times [2022-11-20 10:39:35,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:39:35,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625234168] [2022-11-20 10:39:35,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:39:35,362 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:39:35,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:39:35,363 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:39:35,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 10:39:58,085 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 10:39:58,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:39:58,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 8265 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:39:58,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:39:59,136 INFO L134 CoverageAnalysis]: Checked inductivity of 6391 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6391 trivial. 0 not checked. [2022-11-20 10:39:59,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:39:59,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:39:59,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625234168] [2022-11-20 10:39:59,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625234168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:39:59,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:39:59,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:39:59,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185922977] [2022-11-20 10:39:59,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:39:59,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:39:59,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:39:59,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:39:59,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:39:59,141 INFO L87 Difference]: Start difference. First operand 4910 states and 7227 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-20 10:40:01,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:40:01,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:01,877 INFO L93 Difference]: Finished difference Result 9841 states and 14498 transitions. [2022-11-20 10:40:01,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:40:01,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 661 [2022-11-20 10:40:01,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:01,937 INFO L225 Difference]: With dead ends: 9841 [2022-11-20 10:40:01,937 INFO L226 Difference]: Without dead ends: 4942 [2022-11-20 10:40:01,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 659 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:40:01,964 INFO L413 NwaCegarLoop]: 7204 mSDtfsCounter, 19 mSDsluCounter, 7182 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 14386 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:01,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 14386 Invalid, 28 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 10:40:01,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4942 states. [2022-11-20 10:40:02,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4942 to 4939. [2022-11-20 10:40:02,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4939 states, 3301 states have (on average 1.339291123901848) internal successors, (4421), 3408 states have internal predecessors, (4421), 1428 states have call successors, (1428), 210 states have call predecessors, (1428), 209 states have return successors, (1427), 1423 states have call predecessors, (1427), 1427 states have call successors, (1427) [2022-11-20 10:40:02,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4939 states to 4939 states and 7276 transitions. [2022-11-20 10:40:02,177 INFO L78 Accepts]: Start accepts. Automaton has 4939 states and 7276 transitions. Word has length 661 [2022-11-20 10:40:02,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:02,186 INFO L495 AbstractCegarLoop]: Abstraction has 4939 states and 7276 transitions. [2022-11-20 10:40:02,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-20 10:40:02,186 INFO L276 IsEmpty]: Start isEmpty. Operand 4939 states and 7276 transitions. [2022-11-20 10:40:02,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2022-11-20 10:40:02,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:02,205 INFO L195 NwaCegarLoop]: trace histogram [32, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:02,423 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forcibly destroying the process [2022-11-20 10:40:02,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:40:02,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:40:02,428 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:40:02,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:02,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1876738459, now seen corresponding path program 1 times [2022-11-20 10:40:02,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:02,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732731610] [2022-11-20 10:40:02,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:02,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:40:02,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:02,444 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:40:02,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 10:40:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:40:28,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 10738 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:40:28,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:40:29,525 INFO L134 CoverageAnalysis]: Checked inductivity of 6391 backedges. 612 proven. 6 refuted. 0 times theorem prover too weak. 5773 trivial. 0 not checked. [2022-11-20 10:40:29,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:40:33,918 INFO L134 CoverageAnalysis]: Checked inductivity of 6391 backedges. 0 proven. 232 refuted. 0 times theorem prover too weak. 6159 trivial. 0 not checked. [2022-11-20 10:40:33,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:40:33,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732731610] [2022-11-20 10:40:33,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732731610] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:40:33,919 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:40:33,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-20 10:40:33,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969050132] [2022-11-20 10:40:33,920 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:40:33,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 10:40:33,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:40:33,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 10:40:33,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:40:33,923 INFO L87 Difference]: Start difference. First operand 4939 states and 7276 transitions. Second operand has 15 states, 13 states have (on average 11.846153846153847) internal successors, (154), 15 states have internal predecessors, (154), 4 states have call successors, (96), 2 states have call predecessors, (96), 5 states have return successors, (91), 4 states have call predecessors, (91), 4 states have call successors, (91) [2022-11-20 10:40:46,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:40:46,804 INFO L93 Difference]: Finished difference Result 9881 states and 14690 transitions. [2022-11-20 10:40:46,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:40:46,805 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 11.846153846153847) internal successors, (154), 15 states have internal predecessors, (154), 4 states have call successors, (96), 2 states have call predecessors, (96), 5 states have return successors, (91), 4 states have call predecessors, (91), 4 states have call successors, (91) Word has length 672 [2022-11-20 10:40:46,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:40:46,832 INFO L225 Difference]: With dead ends: 9881 [2022-11-20 10:40:46,832 INFO L226 Difference]: Without dead ends: 4940 [2022-11-20 10:40:46,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1348 GetRequests, 1329 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-11-20 10:40:46,859 INFO L413 NwaCegarLoop]: 7145 mSDtfsCounter, 33 mSDsluCounter, 56926 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 64071 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:40:46,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 64071 Invalid, 920 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [88 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2022-11-20 10:40:46,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4940 states. [2022-11-20 10:40:47,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4940 to 4940. [2022-11-20 10:40:47,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4940 states, 3302 states have (on average 1.3391883706844336) internal successors, (4422), 3409 states have internal predecessors, (4422), 1428 states have call successors, (1428), 210 states have call predecessors, (1428), 209 states have return successors, (1427), 1423 states have call predecessors, (1427), 1427 states have call successors, (1427) [2022-11-20 10:40:47,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4940 states to 4940 states and 7277 transitions. [2022-11-20 10:40:47,043 INFO L78 Accepts]: Start accepts. Automaton has 4940 states and 7277 transitions. Word has length 672 [2022-11-20 10:40:47,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:40:47,043 INFO L495 AbstractCegarLoop]: Abstraction has 4940 states and 7277 transitions. [2022-11-20 10:40:47,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 11.846153846153847) internal successors, (154), 15 states have internal predecessors, (154), 4 states have call successors, (96), 2 states have call predecessors, (96), 5 states have return successors, (91), 4 states have call predecessors, (91), 4 states have call successors, (91) [2022-11-20 10:40:47,044 INFO L276 IsEmpty]: Start isEmpty. Operand 4940 states and 7277 transitions. [2022-11-20 10:40:47,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2022-11-20 10:40:47,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:40:47,061 INFO L195 NwaCegarLoop]: trace histogram [41, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:40:47,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:40:47,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:40:47,275 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:40:47,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:40:47,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1730413142, now seen corresponding path program 1 times [2022-11-20 10:40:47,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:40:47,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103201132] [2022-11-20 10:40:47,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:40:47,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:40:47,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:40:47,287 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:40:47,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 10:41:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:15,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 10836 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:41:15,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:41:15,672 INFO L134 CoverageAnalysis]: Checked inductivity of 6823 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 6131 trivial. 0 not checked. [2022-11-20 10:41:15,672 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:41:15,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:41:15,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103201132] [2022-11-20 10:41:15,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103201132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:15,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:15,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:41:15,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945587073] [2022-11-20 10:41:15,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:15,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:15,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:41:15,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:15,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:15,676 INFO L87 Difference]: Start difference. First operand 4940 states and 7277 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-20 10:41:17,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:41:19,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:41:19,448 INFO L93 Difference]: Finished difference Result 13904 states and 20452 transitions. [2022-11-20 10:41:19,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:19,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 680 [2022-11-20 10:41:19,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:41:19,495 INFO L225 Difference]: With dead ends: 13904 [2022-11-20 10:41:19,495 INFO L226 Difference]: Without dead ends: 8971 [2022-11-20 10:41:19,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:19,521 INFO L413 NwaCegarLoop]: 10860 mSDtfsCounter, 5886 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5886 SdHoareTripleChecker+Valid, 17936 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:41:19,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5886 Valid, 17936 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-20 10:41:19,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8971 states. [2022-11-20 10:41:19,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8971 to 8968. [2022-11-20 10:41:19,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8968 states, 6015 states have (on average 1.3386533665835412) internal successors, (8052), 6208 states have internal predecessors, (8052), 2564 states have call successors, (2564), 389 states have call predecessors, (2564), 388 states have return successors, (2565), 2555 states have call predecessors, (2565), 2563 states have call successors, (2565) [2022-11-20 10:41:19,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8968 states to 8968 states and 13181 transitions. [2022-11-20 10:41:19,968 INFO L78 Accepts]: Start accepts. Automaton has 8968 states and 13181 transitions. Word has length 680 [2022-11-20 10:41:19,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:19,969 INFO L495 AbstractCegarLoop]: Abstraction has 8968 states and 13181 transitions. [2022-11-20 10:41:19,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-20 10:41:19,970 INFO L276 IsEmpty]: Start isEmpty. Operand 8968 states and 13181 transitions. [2022-11-20 10:41:20,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 757 [2022-11-20 10:41:20,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:20,007 INFO L195 NwaCegarLoop]: trace histogram [41, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:20,234 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forcibly destroying the process [2022-11-20 10:41:20,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:41:20,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:41:20,287 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:41:20,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:20,288 INFO L85 PathProgramCache]: Analyzing trace with hash -7122839, now seen corresponding path program 1 times [2022-11-20 10:41:20,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:41:20,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138658680] [2022-11-20 10:41:20,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:20,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:41:20,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:41:20,299 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:41:20,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 10:41:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:41:46,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 11151 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:41:46,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:41:47,856 INFO L134 CoverageAnalysis]: Checked inductivity of 7217 backedges. 722 proven. 0 refuted. 0 times theorem prover too weak. 6495 trivial. 0 not checked. [2022-11-20 10:41:47,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:41:47,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:41:47,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138658680] [2022-11-20 10:41:47,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138658680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:41:47,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:41:47,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:41:47,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924587365] [2022-11-20 10:41:47,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:41:47,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:41:47,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:41:47,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:41:47,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:47,860 INFO L87 Difference]: Start difference. First operand 8968 states and 13181 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-20 10:41:49,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:41:50,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:41:50,338 INFO L93 Difference]: Finished difference Result 22390 states and 32971 transitions. [2022-11-20 10:41:50,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:41:50,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 756 [2022-11-20 10:41:50,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:41:50,434 INFO L225 Difference]: With dead ends: 22390 [2022-11-20 10:41:50,434 INFO L226 Difference]: Without dead ends: 13433 [2022-11-20 10:41:50,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 755 GetRequests, 754 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:41:50,512 INFO L413 NwaCegarLoop]: 10979 mSDtfsCounter, 4972 mSDsluCounter, 7163 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4972 SdHoareTripleChecker+Valid, 18142 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:41:50,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4972 Valid, 18142 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-20 10:41:50,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13433 states. [2022-11-20 10:41:51,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13433 to 13428. [2022-11-20 10:41:51,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13428 states, 9135 states have (on average 1.348440065681445) internal successors, (12318), 9409 states have internal predecessors, (12318), 3739 states have call successors, (3739), 554 states have call predecessors, (3739), 553 states have return successors, (3740), 3728 states have call predecessors, (3740), 3738 states have call successors, (3740) [2022-11-20 10:41:51,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13428 states to 13428 states and 19797 transitions. [2022-11-20 10:41:51,254 INFO L78 Accepts]: Start accepts. Automaton has 13428 states and 19797 transitions. Word has length 756 [2022-11-20 10:41:51,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:41:51,255 INFO L495 AbstractCegarLoop]: Abstraction has 13428 states and 19797 transitions. [2022-11-20 10:41:51,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-11-20 10:41:51,256 INFO L276 IsEmpty]: Start isEmpty. Operand 13428 states and 19797 transitions. [2022-11-20 10:41:51,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2022-11-20 10:41:51,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:41:51,292 INFO L195 NwaCegarLoop]: trace histogram [41, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 12, 12, 12, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:41:51,507 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forcibly destroying the process [2022-11-20 10:41:51,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:41:51,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:41:51,596 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:41:51,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:41:51,596 INFO L85 PathProgramCache]: Analyzing trace with hash -339206183, now seen corresponding path program 1 times [2022-11-20 10:41:51,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:41:51,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314454086] [2022-11-20 10:41:51,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:41:51,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:41:51,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:41:51,616 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:41:51,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 10:42:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:42:19,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 11288 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:42:19,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:42:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 7650 backedges. 1125 proven. 0 refuted. 0 times theorem prover too weak. 6525 trivial. 0 not checked. [2022-11-20 10:42:19,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:42:19,155 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:42:19,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314454086] [2022-11-20 10:42:19,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314454086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:42:19,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:42:19,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:42:19,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499969121] [2022-11-20 10:42:19,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:42:19,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:42:19,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:42:19,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:42:19,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:42:19,159 INFO L87 Difference]: Start difference. First operand 13428 states and 19797 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-20 10:42:20,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:42:21,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:42:21,129 INFO L93 Difference]: Finished difference Result 26845 states and 39581 transitions. [2022-11-20 10:42:21,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:42:21,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 807 [2022-11-20 10:42:21,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:42:21,205 INFO L225 Difference]: With dead ends: 26845 [2022-11-20 10:42:21,205 INFO L226 Difference]: Without dead ends: 13428 [2022-11-20 10:42:21,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 806 GetRequests, 805 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:42:21,272 INFO L413 NwaCegarLoop]: 7195 mSDtfsCounter, 7193 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7193 SdHoareTripleChecker+Valid, 7195 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:42:21,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7193 Valid, 7195 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-20 10:42:21,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13428 states. [2022-11-20 10:42:22,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13428 to 13428. [2022-11-20 10:42:22,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13428 states, 9135 states have (on average 1.3482211275314724) internal successors, (12316), 9409 states have internal predecessors, (12316), 3739 states have call successors, (3739), 554 states have call predecessors, (3739), 553 states have return successors, (3740), 3728 states have call predecessors, (3740), 3738 states have call successors, (3740) [2022-11-20 10:42:22,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13428 states to 13428 states and 19795 transitions. [2022-11-20 10:42:22,318 INFO L78 Accepts]: Start accepts. Automaton has 13428 states and 19795 transitions. Word has length 807 [2022-11-20 10:42:22,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:42:22,319 INFO L495 AbstractCegarLoop]: Abstraction has 13428 states and 19795 transitions. [2022-11-20 10:42:22,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-20 10:42:22,320 INFO L276 IsEmpty]: Start isEmpty. Operand 13428 states and 19795 transitions. [2022-11-20 10:42:22,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1178 [2022-11-20 10:42:22,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:42:22,356 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 41, 12, 12, 12, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:42:22,569 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forcibly destroying the process [2022-11-20 10:42:22,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:42:22,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:42:22,631 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:42:22,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:42:22,632 INFO L85 PathProgramCache]: Analyzing trace with hash -541545455, now seen corresponding path program 1 times [2022-11-20 10:42:22,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:42:22,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560351321] [2022-11-20 10:42:22,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:42:22,658 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:42:22,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:42:22,660 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:42:22,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 10:43:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:01,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 12357 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 10:43:01,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:43:02,923 INFO L134 CoverageAnalysis]: Checked inductivity of 19816 backedges. 9432 proven. 0 refuted. 0 times theorem prover too weak. 10384 trivial. 0 not checked. [2022-11-20 10:43:02,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:43:02,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:43:02,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560351321] [2022-11-20 10:43:02,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560351321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:43:02,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:43:02,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:43:02,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651350046] [2022-11-20 10:43:02,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:43:02,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:43:02,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:43:02,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:43:02,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:43:02,928 INFO L87 Difference]: Start difference. First operand 13428 states and 19795 transitions. Second operand has 7 states, 7 states have (on average 34.42857142857143) internal successors, (241), 6 states have internal predecessors, (241), 2 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (74), 3 states have call predecessors, (74), 2 states have call successors, (74) [2022-11-20 10:43:07,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:07,963 INFO L93 Difference]: Finished difference Result 31763 states and 47304 transitions. [2022-11-20 10:43:07,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:43:07,964 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.42857142857143) internal successors, (241), 6 states have internal predecessors, (241), 2 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (74), 3 states have call predecessors, (74), 2 states have call successors, (74) Word has length 1177 [2022-11-20 10:43:07,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:43:08,076 INFO L225 Difference]: With dead ends: 31763 [2022-11-20 10:43:08,077 INFO L226 Difference]: Without dead ends: 18346 [2022-11-20 10:43:08,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1179 GetRequests, 1172 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:43:08,154 INFO L413 NwaCegarLoop]: 9386 mSDtfsCounter, 4533 mSDsluCounter, 41436 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4533 SdHoareTripleChecker+Valid, 50822 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1269 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:43:08,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4533 Valid, 50822 Invalid, 1326 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1269 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-20 10:43:08,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18346 states. [2022-11-20 10:43:09,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18346 to 13440. [2022-11-20 10:43:09,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13440 states, 9145 states have (on average 1.347840349917988) internal successors, (12326), 9419 states have internal predecessors, (12326), 3739 states have call successors, (3739), 554 states have call predecessors, (3739), 555 states have return successors, (3774), 3730 states have call predecessors, (3774), 3738 states have call successors, (3774) [2022-11-20 10:43:09,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13440 states to 13440 states and 19839 transitions. [2022-11-20 10:43:09,524 INFO L78 Accepts]: Start accepts. Automaton has 13440 states and 19839 transitions. Word has length 1177 [2022-11-20 10:43:09,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:43:09,525 INFO L495 AbstractCegarLoop]: Abstraction has 13440 states and 19839 transitions. [2022-11-20 10:43:09,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.42857142857143) internal successors, (241), 6 states have internal predecessors, (241), 2 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (74), 3 states have call predecessors, (74), 2 states have call successors, (74) [2022-11-20 10:43:09,526 INFO L276 IsEmpty]: Start isEmpty. Operand 13440 states and 19839 transitions. [2022-11-20 10:43:09,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1185 [2022-11-20 10:43:09,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:43:09,565 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 41, 12, 12, 12, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:43:09,783 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forcibly destroying the process [2022-11-20 10:43:09,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 10:43:09,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:43:09,793 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:43:09,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:43:09,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1480291919, now seen corresponding path program 1 times [2022-11-20 10:43:09,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:43:09,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983105232] [2022-11-20 10:43:09,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:43:09,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:43:09,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:43:09,806 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:43:09,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 10:43:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:43:51,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 12375 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:43:51,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:43:52,115 INFO L134 CoverageAnalysis]: Checked inductivity of 20020 backedges. 9564 proven. 0 refuted. 0 times theorem prover too weak. 10456 trivial. 0 not checked. [2022-11-20 10:43:52,116 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:43:52,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:43:52,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983105232] [2022-11-20 10:43:52,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983105232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:43:52,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:43:52,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:43:52,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885207554] [2022-11-20 10:43:52,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:43:52,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:43:52,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:43:52,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:43:52,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:43:52,120 INFO L87 Difference]: Start difference. First operand 13440 states and 19839 transitions. Second operand has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 3 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-20 10:43:59,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:43:59,989 INFO L93 Difference]: Finished difference Result 36603 states and 54896 transitions. [2022-11-20 10:43:59,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:43:59,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 3 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 1184 [2022-11-20 10:43:59,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:00,103 INFO L225 Difference]: With dead ends: 36603 [2022-11-20 10:44:00,104 INFO L226 Difference]: Without dead ends: 23174 [2022-11-20 10:44:00,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1186 GetRequests, 1181 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:44:00,188 INFO L413 NwaCegarLoop]: 10380 mSDtfsCounter, 5399 mSDsluCounter, 26778 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5819 SdHoareTripleChecker+Valid, 37158 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1261 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:44:00,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5819 Valid, 37158 Invalid, 1288 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1261 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-20 10:44:00,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23174 states. [2022-11-20 10:44:02,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23174 to 13443. [2022-11-20 10:44:02,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13443 states, 9148 states have (on average 1.3477262789680804) internal successors, (12329), 9422 states have internal predecessors, (12329), 3739 states have call successors, (3739), 554 states have call predecessors, (3739), 555 states have return successors, (3774), 3730 states have call predecessors, (3774), 3738 states have call successors, (3774) [2022-11-20 10:44:02,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13443 states to 13443 states and 19842 transitions. [2022-11-20 10:44:02,236 INFO L78 Accepts]: Start accepts. Automaton has 13443 states and 19842 transitions. Word has length 1184 [2022-11-20 10:44:02,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:44:02,239 INFO L495 AbstractCegarLoop]: Abstraction has 13443 states and 19842 transitions. [2022-11-20 10:44:02,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 3 states have call successors, (81), 2 states have call predecessors, (81), 2 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-11-20 10:44:02,240 INFO L276 IsEmpty]: Start isEmpty. Operand 13443 states and 19842 transitions. [2022-11-20 10:44:02,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1243 [2022-11-20 10:44:02,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:44:02,287 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 41, 12, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:44:02,506 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forcibly destroying the process [2022-11-20 10:44:02,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 10:44:02,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:44:02,576 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:44:02,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:02,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1856974105, now seen corresponding path program 1 times [2022-11-20 10:44:02,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:44:02,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410957832] [2022-11-20 10:44:02,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:02,588 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:44:02,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:44:02,589 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:44:02,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 10:44:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:46,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 12615 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:44:46,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:44:46,691 INFO L134 CoverageAnalysis]: Checked inductivity of 20074 backedges. 9564 proven. 0 refuted. 0 times theorem prover too weak. 10510 trivial. 0 not checked. [2022-11-20 10:44:46,691 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:44:46,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:44:46,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410957832] [2022-11-20 10:44:46,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410957832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:46,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:44:46,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:44:46,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538913797] [2022-11-20 10:44:46,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:46,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:44:46,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:44:46,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:44:46,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:44:46,695 INFO L87 Difference]: Start difference. First operand 13443 states and 19842 transitions. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) [2022-11-20 10:44:48,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:44:58,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:58,327 INFO L93 Difference]: Finished difference Result 40311 states and 59504 transitions. [2022-11-20 10:44:58,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:44:58,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) Word has length 1242 [2022-11-20 10:44:58,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:44:58,472 INFO L225 Difference]: With dead ends: 40311 [2022-11-20 10:44:58,472 INFO L226 Difference]: Without dead ends: 26879 [2022-11-20 10:44:58,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1243 GetRequests, 1240 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:44:58,548 INFO L413 NwaCegarLoop]: 11748 mSDtfsCounter, 8208 mSDsluCounter, 17818 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 714 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8208 SdHoareTripleChecker+Valid, 29566 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 714 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:44:58,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8208 Valid, 29566 Invalid, 1087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [714 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2022-11-20 10:44:58,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26879 states. [2022-11-20 10:45:01,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26879 to 26866. [2022-11-20 10:45:01,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26866 states, 18280 states have (on average 1.34781181619256) internal successors, (24638), 18832 states have internal predecessors, (24638), 7475 states have call successors, (7475), 1107 states have call predecessors, (7475), 1110 states have return successors, (7546), 7454 states have call predecessors, (7546), 7474 states have call successors, (7546) [2022-11-20 10:45:01,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26866 states to 26866 states and 39659 transitions. [2022-11-20 10:45:01,613 INFO L78 Accepts]: Start accepts. Automaton has 26866 states and 39659 transitions. Word has length 1242 [2022-11-20 10:45:01,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:45:01,615 INFO L495 AbstractCegarLoop]: Abstraction has 26866 states and 39659 transitions. [2022-11-20 10:45:01,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 2 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (88), 2 states have call predecessors, (88), 2 states have call successors, (88) [2022-11-20 10:45:01,615 INFO L276 IsEmpty]: Start isEmpty. Operand 26866 states and 39659 transitions. [2022-11-20 10:45:01,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1242 [2022-11-20 10:45:01,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:45:01,689 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 41, 12, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:01,911 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forcibly destroying the process [2022-11-20 10:45:01,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 10:45:01,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:45:01,931 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:45:01,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:01,932 INFO L85 PathProgramCache]: Analyzing trace with hash -267444251, now seen corresponding path program 1 times [2022-11-20 10:45:01,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:45:01,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646913134] [2022-11-20 10:45:01,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:01,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:45:01,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:45:01,947 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:45:01,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 10:46:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:18,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 12612 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:46:18,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:46:19,633 INFO L134 CoverageAnalysis]: Checked inductivity of 20074 backedges. 999 proven. 10 refuted. 0 times theorem prover too weak. 19065 trivial. 0 not checked. [2022-11-20 10:46:19,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:46:24,833 INFO L134 CoverageAnalysis]: Checked inductivity of 20074 backedges. 213 proven. 103 refuted. 0 times theorem prover too weak. 19758 trivial. 0 not checked. [2022-11-20 10:46:24,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:46:24,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646913134] [2022-11-20 10:46:24,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646913134] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:46:24,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:46:24,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-11-20 10:46:24,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95145415] [2022-11-20 10:46:24,835 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:46:24,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-20 10:46:24,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:46:24,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-20 10:46:24,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-11-20 10:46:24,837 INFO L87 Difference]: Start difference. First operand 26866 states and 39659 transitions. Second operand has 17 states, 15 states have (on average 17.0) internal successors, (255), 17 states have internal predecessors, (255), 4 states have call successors, (100), 2 states have call predecessors, (100), 5 states have return successors, (95), 4 states have call predecessors, (95), 4 states have call successors, (95) [2022-11-20 10:46:36,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:46:36,401 INFO L93 Difference]: Finished difference Result 53822 states and 80173 transitions. [2022-11-20 10:46:36,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:46:36,404 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 17.0) internal successors, (255), 17 states have internal predecessors, (255), 4 states have call successors, (100), 2 states have call predecessors, (100), 5 states have return successors, (95), 4 states have call predecessors, (95), 4 states have call successors, (95) Word has length 1241 [2022-11-20 10:46:36,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:46:36,509 INFO L225 Difference]: With dead ends: 53822 [2022-11-20 10:46:36,509 INFO L226 Difference]: Without dead ends: 26938 [2022-11-20 10:46:36,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2486 GetRequests, 2465 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-11-20 10:46:36,614 INFO L413 NwaCegarLoop]: 7141 mSDtfsCounter, 58 mSDsluCounter, 42748 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 49889 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:46:36,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 49889 Invalid, 754 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [174 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-11-20 10:46:36,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26938 states. [2022-11-20 10:46:39,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26938 to 26938. [2022-11-20 10:46:39,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26938 states, 18344 states have (on average 1.3474705625817707) internal successors, (24718), 18896 states have internal predecessors, (24718), 7475 states have call successors, (7475), 1115 states have call predecessors, (7475), 1118 states have return successors, (7546), 7454 states have call predecessors, (7546), 7474 states have call successors, (7546) [2022-11-20 10:46:39,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26938 states to 26938 states and 39739 transitions. [2022-11-20 10:46:39,979 INFO L78 Accepts]: Start accepts. Automaton has 26938 states and 39739 transitions. Word has length 1241 [2022-11-20 10:46:39,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:46:39,980 INFO L495 AbstractCegarLoop]: Abstraction has 26938 states and 39739 transitions. [2022-11-20 10:46:39,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 17.0) internal successors, (255), 17 states have internal predecessors, (255), 4 states have call successors, (100), 2 states have call predecessors, (100), 5 states have return successors, (95), 4 states have call predecessors, (95), 4 states have call successors, (95) [2022-11-20 10:46:39,980 INFO L276 IsEmpty]: Start isEmpty. Operand 26938 states and 39739 transitions. [2022-11-20 10:46:40,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1244 [2022-11-20 10:46:40,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:46:40,026 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 42, 12, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:40,232 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forcibly destroying the process [2022-11-20 10:46:40,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-20 10:46:40,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:46:40,243 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:46:40,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:40,244 INFO L85 PathProgramCache]: Analyzing trace with hash 984108030, now seen corresponding path program 1 times [2022-11-20 10:46:40,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:46:40,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44636299] [2022-11-20 10:46:40,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:40,259 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:46:40,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:46:40,261 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:46:40,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 10:47:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:47:52,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 12624 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 10:47:52,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:47:53,984 INFO L134 CoverageAnalysis]: Checked inductivity of 20127 backedges. 1047 proven. 15 refuted. 0 times theorem prover too weak. 19065 trivial. 0 not checked. [2022-11-20 10:47:53,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:47:59,881 INFO L134 CoverageAnalysis]: Checked inductivity of 20127 backedges. 246 proven. 123 refuted. 0 times theorem prover too weak. 19758 trivial. 0 not checked. [2022-11-20 10:47:59,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:47:59,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44636299] [2022-11-20 10:47:59,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44636299] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:47:59,881 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:47:59,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-11-20 10:47:59,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989559618] [2022-11-20 10:47:59,882 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 10:47:59,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 10:47:59,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:47:59,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 10:47:59,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:47:59,885 INFO L87 Difference]: Start difference. First operand 26938 states and 39739 transitions. Second operand has 19 states, 17 states have (on average 15.176470588235293) internal successors, (258), 19 states have internal predecessors, (258), 4 states have call successors, (100), 2 states have call predecessors, (100), 5 states have return successors, (95), 4 states have call predecessors, (95), 4 states have call successors, (95) [2022-11-20 10:48:15,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:48:15,097 INFO L93 Difference]: Finished difference Result 53913 states and 79947 transitions. [2022-11-20 10:48:15,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 10:48:15,099 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 15.176470588235293) internal successors, (258), 19 states have internal predecessors, (258), 4 states have call successors, (100), 2 states have call predecessors, (100), 5 states have return successors, (95), 4 states have call predecessors, (95), 4 states have call successors, (95) Word has length 1243 [2022-11-20 10:48:15,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:48:15,195 INFO L225 Difference]: With dead ends: 53913 [2022-11-20 10:48:15,195 INFO L226 Difference]: Without dead ends: 26946 [2022-11-20 10:48:15,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2491 GetRequests, 2467 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-11-20 10:48:15,279 INFO L413 NwaCegarLoop]: 7141 mSDtfsCounter, 66 mSDsluCounter, 71184 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 78325 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:48:15,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 78325 Invalid, 1007 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [129 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2022-11-20 10:48:15,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26946 states. [2022-11-20 10:48:17,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26946 to 26946. [2022-11-20 10:48:17,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26946 states, 18352 states have (on average 1.3473190932868353) internal successors, (24726), 18904 states have internal predecessors, (24726), 7475 states have call successors, (7475), 1115 states have call predecessors, (7475), 1118 states have return successors, (7546), 7454 states have call predecessors, (7546), 7474 states have call successors, (7546) [2022-11-20 10:48:17,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26946 states to 26946 states and 39747 transitions. [2022-11-20 10:48:17,817 INFO L78 Accepts]: Start accepts. Automaton has 26946 states and 39747 transitions. Word has length 1243 [2022-11-20 10:48:17,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:48:17,818 INFO L495 AbstractCegarLoop]: Abstraction has 26946 states and 39747 transitions. [2022-11-20 10:48:17,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 15.176470588235293) internal successors, (258), 19 states have internal predecessors, (258), 4 states have call successors, (100), 2 states have call predecessors, (100), 5 states have return successors, (95), 4 states have call predecessors, (95), 4 states have call successors, (95) [2022-11-20 10:48:17,818 INFO L276 IsEmpty]: Start isEmpty. Operand 26946 states and 39747 transitions. [2022-11-20 10:48:17,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1244 [2022-11-20 10:48:17,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:48:17,886 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 43, 12, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:48:18,111 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forcibly destroying the process [2022-11-20 10:48:18,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 10:48:18,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:48:18,173 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:48:18,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:48:18,174 INFO L85 PathProgramCache]: Analyzing trace with hash -788513019, now seen corresponding path program 2 times [2022-11-20 10:48:18,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:48:18,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902319371] [2022-11-20 10:48:18,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:48:18,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:48:18,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:48:18,195 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:48:18,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_183f01dc-6d12-46d7-b5a1-7c6298dd5821/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process