./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 --- 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 20:17:53,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:17:53,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:17:53,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:17:53,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:17:53,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:17:53,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:17:54,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:17:54,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:17:54,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:17:54,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:17:54,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:17:54,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:17:54,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:17:54,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:17:54,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:17:54,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:17:54,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:17:54,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:17:54,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:17:54,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:17:54,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:17:54,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:17:54,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:17:54,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:17:54,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:17:54,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:17:54,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:17:54,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:17:54,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:17:54,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:17:54,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:17:54,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:17:54,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:17:54,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:17:54,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:17:54,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:17:54,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:17:54,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:17:54,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:17:54,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:17:54,082 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 20:17:54,125 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:17:54,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:17:54,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:17:54,130 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:17:54,131 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:17:54,131 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:17:54,132 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:17:54,132 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:17:54,132 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:17:54,132 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:17:54,134 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:17:54,134 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:17:54,134 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:17:54,134 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:17:54,135 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:17:54,135 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:17:54,135 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:17:54,136 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:17:54,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:17:54,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:17:54,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:17:54,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:17:54,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:17:54,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:17:54,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:17:54,138 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:17:54,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:17:54,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:17:54,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:17:54,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:17:54,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:17:54,140 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:17:54,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:17:54,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:17:54,141 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:17:54,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:17:54,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:17:54,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:17:54,142 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_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 [2022-11-20 20:17:54,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:17:54,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:17:54,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:17:54,612 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:17:54,613 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:17:54,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2022-11-20 20:17:57,879 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:17:58,619 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:17:58,620 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2022-11-20 20:17:58,687 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/data/e07a4e77e/a02aac6efca44075a4f7c834ff790f37/FLAGf5b96aef0 [2022-11-20 20:17:58,704 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/data/e07a4e77e/a02aac6efca44075a4f7c834ff790f37 [2022-11-20 20:17:58,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:17:58,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:17:58,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:17:58,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:17:58,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:17:58,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:17:58" (1/1) ... [2022-11-20 20:17:58,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24cd5a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:17:58, skipping insertion in model container [2022-11-20 20:17:58,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:17:58" (1/1) ... [2022-11-20 20:17:58,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:17:58,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:18:01,309 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.abstractShiftLeft(BitabsTranslation.java:148) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:187) 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: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:728) 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:728) 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:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) 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 20:18:01,320 INFO L158 Benchmark]: Toolchain (without parser) took 2607.60ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 117.1MB in the beginning and 146.3MB in the end (delta: -29.3MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. [2022-11-20 20:18:01,320 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 130.0MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:18:01,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2604.10ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 117.1MB in the beginning and 146.3MB in the end (delta: -29.3MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. [2022-11-20 20:18:01,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 130.0MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2604.10ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 117.1MB in the beginning and 146.3MB in the end (delta: -29.3MB). Peak memory consumption was 76.4MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 --- 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 20:18:03,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:18:03,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:18:03,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:18:03,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:18:03,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:18:03,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:18:03,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:18:03,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:18:03,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:18:03,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:18:03,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:18:03,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:18:03,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:18:03,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:18:03,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:18:03,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:18:03,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:18:03,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:18:03,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:18:03,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:18:03,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:18:03,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:18:03,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:18:03,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:18:03,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:18:03,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:18:03,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:18:03,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:18:03,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:18:03,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:18:03,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:18:03,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:18:03,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:18:03,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:18:03,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:18:03,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:18:03,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:18:03,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:18:03,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:18:03,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:18:03,680 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-20 20:18:03,717 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:18:03,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:18:03,719 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:18:03,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:18:03,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:18:03,720 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:18:03,721 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:18:03,721 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:18:03,721 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:18:03,721 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:18:03,722 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:18:03,723 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:18:03,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:18:03,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:18:03,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:18:03,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:18:03,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:18:03,725 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 20:18:03,725 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 20:18:03,725 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 20:18:03,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:18:03,726 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:18:03,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:18:03,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:18:03,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 20:18:03,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:18:03,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:18:03,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:18:03,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:18:03,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:18:03,728 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 20:18:03,728 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 20:18:03,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:18:03,729 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:18:03,729 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 20:18:03,729 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_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 [2022-11-20 20:18:04,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:18:04,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:18:04,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:18:04,148 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:18:04,150 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:18:04,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2022-11-20 20:18:07,220 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:18:07,933 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:18:07,933 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2022-11-20 20:18:08,009 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/data/a26a32de1/08284013366a4fe2982ddd4f46d8b16e/FLAG8c630fc03 [2022-11-20 20:18:08,032 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/data/a26a32de1/08284013366a4fe2982ddd4f46d8b16e [2022-11-20 20:18:08,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:18:08,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:18:08,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:18:08,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:18:08,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:18:08,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:18:08" (1/1) ... [2022-11-20 20:18:08,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@547c392b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:08, skipping insertion in model container [2022-11-20 20:18:08,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:18:08" (1/1) ... [2022-11-20 20:18:08,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:18:08,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:18:12,289 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_f5320401-52d6-4cba-97ee-33f4d719f862/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2022-11-20 20:18:12,294 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_f5320401-52d6-4cba-97ee-33f4d719f862/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2022-11-20 20:18:12,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:18:12,381 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 20:18:12,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:18:12,996 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_f5320401-52d6-4cba-97ee-33f4d719f862/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2022-11-20 20:18:12,996 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_f5320401-52d6-4cba-97ee-33f4d719f862/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2022-11-20 20:18:13,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:18:13,063 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:18:13,655 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_f5320401-52d6-4cba-97ee-33f4d719f862/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2022-11-20 20:18:13,656 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_f5320401-52d6-4cba-97ee-33f4d719f862/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2022-11-20 20:18:13,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:18:13,892 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:18:13,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:13 WrapperNode [2022-11-20 20:18:13,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:18:13,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:18:13,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:18:13,894 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:18:13,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:13" (1/1) ... [2022-11-20 20:18:14,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:13" (1/1) ... [2022-11-20 20:18:14,271 INFO L138 Inliner]: procedures = 565, calls = 3920, calls flagged for inlining = 270, calls inlined = 246, statements flattened = 8915 [2022-11-20 20:18:14,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:18:14,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:18:14,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:18:14,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:18:14,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:13" (1/1) ... [2022-11-20 20:18:14,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:13" (1/1) ... [2022-11-20 20:18:14,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:13" (1/1) ... [2022-11-20 20:18:14,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:13" (1/1) ... [2022-11-20 20:18:14,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:13" (1/1) ... [2022-11-20 20:18:14,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:13" (1/1) ... [2022-11-20 20:18:14,719 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:13" (1/1) ... [2022-11-20 20:18:14,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:13" (1/1) ... [2022-11-20 20:18:14,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:18:14,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:18:14,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:18:14,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:18:14,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:13" (1/1) ... [2022-11-20 20:18:14,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:18:14,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:18:14,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:18:14,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:18:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_evict_inode [2022-11-20 20:18:14,887 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_evict_inode [2022-11-20 20:18:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2022-11-20 20:18:14,888 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2022-11-20 20:18:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 20:18:14,888 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 20:18:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_unlink [2022-11-20 20:18:14,888 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_unlink [2022-11-20 20:18:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_get_inode [2022-11-20 20:18:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_get_inode [2022-11-20 20:18:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-20 20:18:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-20 20:18:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 20:18:14,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 20:18:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_lseek [2022-11-20 20:18:14,890 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_lseek [2022-11-20 20:18:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure do_expire_wait [2022-11-20 20:18:14,891 INFO L138 BoogieDeclarations]: Found implementation of procedure do_expire_wait [2022-11-20 20:18:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-20 20:18:14,891 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-20 20:18:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure dget [2022-11-20 20:18:14,892 INFO L138 BoogieDeclarations]: Found implementation of procedure dget [2022-11-20 20:18:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2022-11-20 20:18:14,893 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2022-11-20 20:18:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure current_kernel_time [2022-11-20 20:18:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure current_kernel_time [2022-11-20 20:18:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2022-11-20 20:18:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2022-11-20 20:18:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_indirect [2022-11-20 20:18:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_indirect [2022-11-20 20:18:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-11-20 20:18:14,896 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-11-20 20:18:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_clear_managed [2022-11-20 20:18:14,896 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_clear_managed [2022-11-20 20:18:14,896 INFO L130 BoogieDeclarations]: Found specification of procedure from_kgid_munged [2022-11-20 20:18:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kgid_munged [2022-11-20 20:18:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure follow_down_one [2022-11-20 20:18:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_down_one [2022-11-20 20:18:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_show_options [2022-11-20 20:18:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_show_options [2022-11-20 20:18:14,897 INFO L130 BoogieDeclarations]: Found specification of procedure __autofs4_add_expiring [2022-11-20 20:18:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __autofs4_add_expiring [2022-11-20 20:18:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-20 20:18:14,898 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_wait [2022-11-20 20:18:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_wait [2022-11-20 20:18:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl [2022-11-20 20:18:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl [2022-11-20 20:18:14,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 20:18:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 20:18:14,900 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-20 20:18:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-20 20:18:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 20:18:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 20:18:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:18:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure d_count [2022-11-20 20:18:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure d_count [2022-11-20 20:18:14,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 20:18:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 20:18:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-20 20:18:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-20 20:18:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 20:18:14,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_63 [2022-11-20 20:18:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_63 [2022-11-20 20:18:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2022-11-20 20:18:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2022-11-20 20:18:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-20 20:18:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-20 20:18:14,903 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 20:18:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 20:18:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-11-20 20:18:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-11-20 20:18:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_oz_mode [2022-11-20 20:18:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_oz_mode [2022-11-20 20:18:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_do_expire_multi [2022-11-20 20:18:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_do_expire_multi [2022-11-20 20:18:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-20 20:18:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2022-11-20 20:18:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure __task_pid_nr_ns [2022-11-20 20:18:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __task_pid_nr_ns [2022-11-20 20:18:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_57 [2022-11-20 20:18:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_57 [2022-11-20 20:18:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 20:18:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 20:18:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_sbi [2022-11-20 20:18:14,907 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_sbi [2022-11-20 20:18:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-20 20:18:14,908 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-20 20:18:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_siglock_of_sighand_struct [2022-11-20 20:18:14,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_siglock_of_sighand_struct [2022-11-20 20:18:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_new_ino [2022-11-20 20:18:14,908 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_new_ino [2022-11-20 20:18:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure simple_empty [2022-11-20 20:18:14,909 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_empty [2022-11-20 20:18:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 20:18:14,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 20:18:14,910 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_can_expire [2022-11-20 20:18:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_can_expire [2022-11-20 20:18:14,910 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_ino [2022-11-20 20:18:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_ino [2022-11-20 20:18:14,910 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2022-11-20 20:18:14,910 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2022-11-20 20:18:14,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-20 20:18:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-20 20:18:14,911 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_open [2022-11-20 20:18:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_open [2022-11-20 20:18:14,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 20:18:14,913 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 20:18:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_rmdir [2022-11-20 20:18:14,916 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_rmdir [2022-11-20 20:18:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount [2022-11-20 20:18:14,916 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount [2022-11-20 20:18:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl_exit [2022-11-20 20:18:14,917 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl_exit [2022-11-20 20:18:14,918 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-20 20:18:14,918 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-20 20:18:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 20:18:14,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 20:18:14,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 20:18:14,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 20:18:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_open [2022-11-20 20:18:14,926 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_open [2022-11-20 20:18:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-20 20:18:14,926 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-20 20:18:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure clear_nlink [2022-11-20 20:18:14,926 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_nlink [2022-11-20 20:18:14,926 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 20:18:14,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 20:18:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_trigger [2022-11-20 20:18:14,927 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_trigger [2022-11-20 20:18:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 20:18:14,927 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-20 20:18:14,927 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-20 20:18:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 20:18:14,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 20:18:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 20:18:14,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 20:18:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-20 20:18:14,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-20 20:18:14,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 20:18:14,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 20:18:14,929 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2022-11-20 20:18:14,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-20 20:18:14,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-20 20:18:14,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:18:14,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 20:18:14,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 20:18:14,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 20:18:14,930 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 20:18:14,930 INFO L130 BoogieDeclarations]: Found specification of procedure simple_positive [2022-11-20 20:18:14,930 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_positive [2022-11-20 20:18:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 20:18:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 20:18:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 20:18:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-20 20:18:14,932 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-20 20:18:14,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-20 20:18:14,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-20 20:18:14,932 INFO L130 BoogieDeclarations]: Found specification of procedure path_get [2022-11-20 20:18:14,932 INFO L138 BoogieDeclarations]: Found implementation of procedure path_get [2022-11-20 20:18:14,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-20 20:18:14,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-20 20:18:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure dget_dlock [2022-11-20 20:18:14,933 INFO L138 BoogieDeclarations]: Found implementation of procedure dget_dlock [2022-11-20 20:18:14,933 INFO L130 BoogieDeclarations]: Found specification of procedure d_lookup [2022-11-20 20:18:14,933 INFO L138 BoogieDeclarations]: Found implementation of procedure d_lookup [2022-11-20 20:18:14,934 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-20 20:18:14,934 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-20 20:18:14,934 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 20:18:14,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 20:18:14,934 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2022-11-20 20:18:14,934 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2022-11-20 20:18:14,934 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-20 20:18:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-20 20:18:14,935 INFO L130 BoogieDeclarations]: Found specification of procedure d_drop [2022-11-20 20:18:14,935 INFO L138 BoogieDeclarations]: Found implementation of procedure d_drop [2022-11-20 20:18:14,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 20:18:14,936 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_mount [2022-11-20 20:18:14,936 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_mount [2022-11-20 20:18:14,936 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_indirect [2022-11-20 20:18:14,936 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_indirect [2022-11-20 20:18:14,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:18:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:18:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_wait [2022-11-20 20:18:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_wait [2022-11-20 20:18:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 20:18:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 20:18:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl [2022-11-20 20:18:14,937 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl [2022-11-20 20:18:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 20:18:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2022-11-20 20:18:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2022-11-20 20:18:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-20 20:18:14,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-20 20:18:14,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 20:18:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 20:18:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 20:18:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 20:18:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 20:18:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait_release [2022-11-20 20:18:14,939 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait_release [2022-11-20 20:18:14,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 20:18:14,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 20:18:14,940 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl_unlocked [2022-11-20 20:18:14,940 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl_unlocked [2022-11-20 20:18:14,940 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-20 20:18:14,940 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-20 20:18:14,940 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-20 20:18:14,940 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-20 20:18:14,941 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_compat_ioctl [2022-11-20 20:18:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_compat_ioctl [2022-11-20 20:18:14,941 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqretry [2022-11-20 20:18:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqretry [2022-11-20 20:18:14,941 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-20 20:18:14,941 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-20 20:18:14,941 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-20 20:18:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-20 20:18:14,942 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_readdir [2022-11-20 20:18:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_readdir [2022-11-20 20:18:14,942 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2022-11-20 20:18:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2022-11-20 20:18:14,942 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 20:18:14,942 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 20:18:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount_tree [2022-11-20 20:18:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount_tree [2022-11-20 20:18:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-20 20:18:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-20 20:18:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure simple_statfs [2022-11-20 20:18:14,943 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_statfs [2022-11-20 20:18:14,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 20:18:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 20:18:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure get_task_pid [2022-11-20 20:18:14,944 INFO L138 BoogieDeclarations]: Found implementation of procedure get_task_pid [2022-11-20 20:18:14,944 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-11-20 20:18:14,945 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-11-20 20:18:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_busy [2022-11-20 20:18:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_busy [2022-11-20 20:18:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure d_unhashed [2022-11-20 20:18:14,949 INFO L138 BoogieDeclarations]: Found implementation of procedure d_unhashed [2022-11-20 20:18:14,949 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-20 20:18:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-20 20:18:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_kill_sb [2022-11-20 20:18:14,950 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_kill_sb [2022-11-20 20:18:14,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:18:14,951 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 20:18:14,952 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 20:18:14,952 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-11-20 20:18:14,953 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-11-20 20:18:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-20 20:18:14,953 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-20 20:18:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_set_managed [2022-11-20 20:18:14,953 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_set_managed [2022-11-20 20:18:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 20:18:14,953 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-20 20:18:14,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-20 20:18:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-11-20 20:18:14,954 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-11-20 20:18:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 20:18:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 20:18:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 20:18:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 20:18:14,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 20:18:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 20:18:14,955 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 20:18:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 20:18:14,955 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 20:18:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure find_autofs_mount [2022-11-20 20:18:14,955 INFO L138 BoogieDeclarations]: Found implementation of procedure find_autofs_mount [2022-11-20 20:18:14,955 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 20:18:14,955 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 20:18:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 20:18:14,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 20:18:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_close [2022-11-20 20:18:14,956 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_close [2022-11-20 20:18:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure ns_of_pid [2022-11-20 20:18:14,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_of_pid [2022-11-20 20:18:14,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 20:18:14,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 20:18:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-20 20:18:14,957 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-20 20:18:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_clean_ino [2022-11-20 20:18:14,957 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_clean_ino [2022-11-20 20:18:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_86 [2022-11-20 20:18:14,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_86 [2022-11-20 20:18:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_LONG [2022-11-20 20:18:14,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_LONG [2022-11-20 20:18:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_64 [2022-11-20 20:18:14,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_64 [2022-11-20 20:18:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure kern_path_mountpoint [2022-11-20 20:18:14,958 INFO L138 BoogieDeclarations]: Found implementation of procedure kern_path_mountpoint [2022-11-20 20:18:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_positive_dentry [2022-11-20 20:18:14,958 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_positive_dentry [2022-11-20 20:18:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_58 [2022-11-20 20:18:14,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_58 [2022-11-20 20:18:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 20:18:14,959 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 20:18:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure __managed_dentry_set_managed [2022-11-20 20:18:14,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __managed_dentry_set_managed [2022-11-20 20:18:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait [2022-11-20 20:18:14,959 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait [2022-11-20 20:18:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-11-20 20:18:14,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-11-20 20:18:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_find_wait [2022-11-20 20:18:14,960 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_find_wait [2022-11-20 20:18:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-20 20:18:14,960 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-20 20:18:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-20 20:18:14,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-20 20:18:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_release [2022-11-20 20:18:14,961 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_release [2022-11-20 20:18:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure task_pgrp_nr [2022-11-20 20:18:14,961 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pgrp_nr [2022-11-20 20:18:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 20:18:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 20:18:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 20:18:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 20:18:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 20:18:14,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 20:18:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_87 [2022-11-20 20:18:14,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_87 [2022-11-20 20:18:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-11-20 20:18:14,963 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-11-20 20:18:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_symlink [2022-11-20 20:18:14,963 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_symlink [2022-11-20 20:18:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-20 20:18:14,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-20 20:18:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2022-11-20 20:18:14,963 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2022-11-20 20:18:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-20 20:18:14,964 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-20 20:18:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure d_mountpoint [2022-11-20 20:18:14,964 INFO L138 BoogieDeclarations]: Found implementation of procedure d_mountpoint [2022-11-20 20:18:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-20 20:18:14,964 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-20 20:18:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure have_submounts [2022-11-20 20:18:14,964 INFO L138 BoogieDeclarations]: Found implementation of procedure have_submounts [2022-11-20 20:18:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-20 20:18:14,965 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-20 20:18:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-20 20:18:14,965 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-20 20:18:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 20:18:14,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 20:18:14,965 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-20 20:18:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-20 20:18:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_prepare_pipe [2022-11-20 20:18:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_prepare_pipe [2022-11-20 20:18:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 20:18:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 20:18:14,966 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_del_active [2022-11-20 20:18:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_del_active [2022-11-20 20:18:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 20:18:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 20:18:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-20 20:18:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-20 20:18:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure d_add [2022-11-20 20:18:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure d_add [2022-11-20 20:18:14,967 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_catatonic_mode [2022-11-20 20:18:14,968 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_catatonic_mode [2022-11-20 20:18:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2022-11-20 20:18:14,968 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2022-11-20 20:18:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 20:18:14,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 20:18:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-20 20:18:14,968 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-20 20:18:14,969 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-20 20:18:16,342 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:18:16,351 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:18:16,627 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 20:18:23,249 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call ULTIMATE.dealloc(~#descriptor~12#1.base, ~#descriptor~12#1.offset);havoc ~#descriptor~12#1.base, ~#descriptor~12#1.offset; [2022-11-20 20:19:31,241 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 20:19:34,012 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:19:34,046 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:19:34,048 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-20 20:19:34,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:19:34 BoogieIcfgContainer [2022-11-20 20:19:34,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:19:34,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:19:34,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:19:34,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:19:34,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:18:08" (1/3) ... [2022-11-20 20:19:34,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627a2dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:19:34, skipping insertion in model container [2022-11-20 20:19:34,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:18:13" (2/3) ... [2022-11-20 20:19:34,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627a2dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:19:34, skipping insertion in model container [2022-11-20 20:19:34,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:19:34" (3/3) ... [2022-11-20 20:19:34,065 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2022-11-20 20:19:34,090 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:19:34,090 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 20:19:34,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:19:34,241 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=FINITE_AUTOMATA, 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;@4b6e16f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:19:34,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 20:19:34,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 3208 states, 2121 states have (on average 1.298915605846299) internal successors, (2755), 2171 states have internal predecessors, (2755), 922 states have call successors, (922), 165 states have call predecessors, (922), 164 states have return successors, (911), 905 states have call predecessors, (911), 911 states have call successors, (911) [2022-11-20 20:19:34,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2022-11-20 20:19:34,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:19:34,351 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 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] [2022-11-20 20:19:34,351 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:19:34,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:19:34,359 INFO L85 PathProgramCache]: Analyzing trace with hash -972367191, now seen corresponding path program 1 times [2022-11-20 20:19:34,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:19:34,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393959324] [2022-11-20 20:19:34,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:19:34,384 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 20:19:34,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:19:34,390 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:34,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:19:37,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 3235 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 20:19:37,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:19:37,446 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8653 trivial. 0 not checked. [2022-11-20 20:19:37,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:19:37,447 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:19:37,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393959324] [2022-11-20 20:19:37,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393959324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:19:37,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:19:37,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:19:37,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898239582] [2022-11-20 20:19:37,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:19:37,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 20:19:37,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:19:37,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 20:19:37,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 20:19:37,492 INFO L87 Difference]: Start difference. First operand has 3208 states, 2121 states have (on average 1.298915605846299) internal successors, (2755), 2171 states have internal predecessors, (2755), 922 states have call successors, (922), 165 states have call predecessors, (922), 164 states have return successors, (911), 905 states have call predecessors, (911), 911 states have call successors, (911) Second operand has 2 states, 2 states have (on average 60.5) internal successors, (121), 2 states have internal predecessors, (121), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-20 20:19:37,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:19:37,773 INFO L93 Difference]: Finished difference Result 6282 states and 9119 transitions. [2022-11-20 20:19:37,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 20:19:37,775 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 60.5) internal successors, (121), 2 states have internal predecessors, (121), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 595 [2022-11-20 20:19:37,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:19:37,833 INFO L225 Difference]: With dead ends: 6282 [2022-11-20 20:19:37,833 INFO L226 Difference]: Without dead ends: 3136 [2022-11-20 20:19:37,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 594 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 20:19:37,875 INFO L413 NwaCegarLoop]: 4497 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, 4497 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 20:19:37,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4497 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:19:37,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2022-11-20 20:19:38,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 3136. [2022-11-20 20:19:38,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 2081 states have (on average 1.2715040845747236) internal successors, (2646), 2128 states have internal predecessors, (2646), 892 states have call successors, (892), 162 states have call predecessors, (892), 162 states have return successors, (892), 886 states have call predecessors, (892), 892 states have call successors, (892) [2022-11-20 20:19:38,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 4430 transitions. [2022-11-20 20:19:38,127 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 4430 transitions. Word has length 595 [2022-11-20 20:19:38,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:19:38,130 INFO L495 AbstractCegarLoop]: Abstraction has 3136 states and 4430 transitions. [2022-11-20 20:19:38,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 60.5) internal successors, (121), 2 states have internal predecessors, (121), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-20 20:19:38,131 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 4430 transitions. [2022-11-20 20:19:38,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2022-11-20 20:19:38,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:19:38,158 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 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] [2022-11-20 20:19:38,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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)] Ended with exit code 0 [2022-11-20 20:19:38,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:38,376 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:19:38,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:19:38,377 INFO L85 PathProgramCache]: Analyzing trace with hash -697607577, now seen corresponding path program 1 times [2022-11-20 20:19:38,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:19:38,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595510673] [2022-11-20 20:19:38,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:19:38,381 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 20:19:38,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:19:38,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:38,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:19:41,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 3235 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:19:41,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:19:41,578 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8527 trivial. 0 not checked. [2022-11-20 20:19:41,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:19:41,578 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:19:41,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595510673] [2022-11-20 20:19:41,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595510673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:19:41,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:19:41,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:19:41,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155021960] [2022-11-20 20:19:41,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:19:41,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:19:41,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:19:41,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:19:41,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:19:41,583 INFO L87 Difference]: Start difference. First operand 3136 states and 4430 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-20 20:19:42,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:19:42,400 INFO L93 Difference]: Finished difference Result 8982 states and 12663 transitions. [2022-11-20 20:19:42,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:19:42,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 595 [2022-11-20 20:19:42,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:19:42,447 INFO L225 Difference]: With dead ends: 8982 [2022-11-20 20:19:42,448 INFO L226 Difference]: Without dead ends: 5939 [2022-11-20 20:19:42,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 593 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 20:19:42,466 INFO L413 NwaCegarLoop]: 5294 mSDtfsCounter, 3919 mSDsluCounter, 4393 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3919 SdHoareTripleChecker+Valid, 9687 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 20:19:42,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3919 Valid, 9687 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 20:19:42,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5939 states. [2022-11-20 20:19:42,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5939 to 5935. [2022-11-20 20:19:42,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5935 states, 3949 states have (on average 1.2737401873892125) internal successors, (5030), 4040 states have internal predecessors, (5030), 1666 states have call successors, (1666), 319 states have call predecessors, (1666), 319 states have return successors, (1666), 1652 states have call predecessors, (1666), 1666 states have call successors, (1666) [2022-11-20 20:19:42,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 8362 transitions. [2022-11-20 20:19:42,822 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 8362 transitions. Word has length 595 [2022-11-20 20:19:42,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:19:42,823 INFO L495 AbstractCegarLoop]: Abstraction has 5935 states and 8362 transitions. [2022-11-20 20:19:42,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-20 20:19:42,824 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 8362 transitions. [2022-11-20 20:19:42,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 619 [2022-11-20 20:19:42,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:19:42,860 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 44, 44, 44, 44, 44, 44, 3, 3, 3, 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] [2022-11-20 20:19:42,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:43,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:43,083 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:19:43,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:19:43,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1118397791, now seen corresponding path program 1 times [2022-11-20 20:19:43,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:19:43,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146642960] [2022-11-20 20:19:43,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:19:43,090 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 20:19:43,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:19:43,092 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:43,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:19:45,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 3266 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:19:45,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:19:46,047 INFO L134 CoverageAnalysis]: Checked inductivity of 8805 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 8535 trivial. 0 not checked. [2022-11-20 20:19:46,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:19:46,048 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:19:46,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146642960] [2022-11-20 20:19:46,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146642960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:19:46,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:19:46,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:19:46,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649239114] [2022-11-20 20:19:46,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:19:46,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:19:46,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:19:46,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:19:46,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:19:46,052 INFO L87 Difference]: Start difference. First operand 5935 states and 8362 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-20 20:19:47,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:19:47,023 INFO L93 Difference]: Finished difference Result 14513 states and 20424 transitions. [2022-11-20 20:19:47,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:19:47,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 618 [2022-11-20 20:19:47,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:19:47,090 INFO L225 Difference]: With dead ends: 14513 [2022-11-20 20:19:47,091 INFO L226 Difference]: Without dead ends: 8671 [2022-11-20 20:19:47,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 616 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 20:19:47,127 INFO L413 NwaCegarLoop]: 5200 mSDtfsCounter, 3878 mSDsluCounter, 4320 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3878 SdHoareTripleChecker+Valid, 9520 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 20:19:47,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3878 Valid, 9520 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 20:19:47,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8671 states. [2022-11-20 20:19:47,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8671 to 8669. [2022-11-20 20:19:47,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8669 states, 5768 states have (on average 1.2739251040221915) internal successors, (7348), 5900 states have internal predecessors, (7348), 2421 states have call successors, (2421), 479 states have call predecessors, (2421), 479 states have return successors, (2421), 2401 states have call predecessors, (2421), 2421 states have call successors, (2421) [2022-11-20 20:19:47,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8669 states to 8669 states and 12190 transitions. [2022-11-20 20:19:47,791 INFO L78 Accepts]: Start accepts. Automaton has 8669 states and 12190 transitions. Word has length 618 [2022-11-20 20:19:47,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:19:47,793 INFO L495 AbstractCegarLoop]: Abstraction has 8669 states and 12190 transitions. [2022-11-20 20:19:47,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-20 20:19:47,795 INFO L276 IsEmpty]: Start isEmpty. Operand 8669 states and 12190 transitions. [2022-11-20 20:19:47,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2022-11-20 20:19:47,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:19:47,825 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 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] [2022-11-20 20:19:47,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:48,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:48,044 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:19:48,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:19:48,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1038414558, now seen corresponding path program 1 times [2022-11-20 20:19:48,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:19:48,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865983403] [2022-11-20 20:19:48,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:19:48,049 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 20:19:48,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:19:48,051 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:48,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:19:50,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 3385 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:19:50,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:19:50,870 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8527 trivial. 0 not checked. [2022-11-20 20:19:50,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:19:50,871 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:19:50,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865983403] [2022-11-20 20:19:50,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865983403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:19:50,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:19:50,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:19:50,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302140251] [2022-11-20 20:19:50,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:19:50,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:19:50,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:19:50,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:19:50,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:19:50,875 INFO L87 Difference]: Start difference. First operand 8669 states and 12190 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-20 20:19:52,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:19:52,245 INFO L93 Difference]: Finished difference Result 22817 states and 32035 transitions. [2022-11-20 20:19:52,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:19:52,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 629 [2022-11-20 20:19:52,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:19:52,351 INFO L225 Difference]: With dead ends: 22817 [2022-11-20 20:19:52,352 INFO L226 Difference]: Without dead ends: 14241 [2022-11-20 20:19:52,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 627 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 20:19:52,396 INFO L413 NwaCegarLoop]: 5248 mSDtfsCounter, 4113 mSDsluCounter, 4368 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4113 SdHoareTripleChecker+Valid, 9616 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 20:19:52,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4113 Valid, 9616 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 20:19:52,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14241 states. [2022-11-20 20:19:53,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14241 to 14231. [2022-11-20 20:19:53,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14231 states, 9499 states have (on average 1.272870828508264) internal successors, (12091), 9722 states have internal predecessors, (12091), 3925 states have call successors, (3925), 806 states have call predecessors, (3925), 806 states have return successors, (3927), 3891 states have call predecessors, (3927), 3925 states have call successors, (3927) [2022-11-20 20:19:53,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14231 states to 14231 states and 19943 transitions. [2022-11-20 20:19:53,412 INFO L78 Accepts]: Start accepts. Automaton has 14231 states and 19943 transitions. Word has length 629 [2022-11-20 20:19:53,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:19:53,414 INFO L495 AbstractCegarLoop]: Abstraction has 14231 states and 19943 transitions. [2022-11-20 20:19:53,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-20 20:19:53,414 INFO L276 IsEmpty]: Start isEmpty. Operand 14231 states and 19943 transitions. [2022-11-20 20:19:53,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2022-11-20 20:19:53,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:19:53,442 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 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] [2022-11-20 20:19:53,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:53,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:53,671 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:19:53,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:19:53,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1407001533, now seen corresponding path program 1 times [2022-11-20 20:19:53,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:19:53,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729855390] [2022-11-20 20:19:53,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:19:53,674 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 20:19:53,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:19:53,676 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:53,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:19:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:19:56,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 3406 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:19:56,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:19:56,481 INFO L134 CoverageAnalysis]: Checked inductivity of 8659 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8527 trivial. 0 not checked. [2022-11-20 20:19:56,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:19:56,481 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:19:56,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729855390] [2022-11-20 20:19:56,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729855390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:19:56,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:19:56,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:19:56,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228198535] [2022-11-20 20:19:56,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:19:56,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:19:56,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:19:56,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:19:56,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:19:56,485 INFO L87 Difference]: Start difference. First operand 14231 states and 19943 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-20 20:19:58,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:19:58,313 INFO L93 Difference]: Finished difference Result 38877 states and 54424 transitions. [2022-11-20 20:19:58,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:19:58,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 625 [2022-11-20 20:19:58,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:19:58,579 INFO L225 Difference]: With dead ends: 38877 [2022-11-20 20:19:58,579 INFO L226 Difference]: Without dead ends: 24739 [2022-11-20 20:19:58,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 624 GetRequests, 623 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 20:19:58,632 INFO L413 NwaCegarLoop]: 5436 mSDtfsCounter, 4099 mSDsluCounter, 4368 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4099 SdHoareTripleChecker+Valid, 9804 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 20:19:58,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4099 Valid, 9804 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 20:19:58,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24739 states. [2022-11-20 20:20:00,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24739 to 24729. [2022-11-20 20:20:00,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24729 states, 16517 states have (on average 1.272083308106799) internal successors, (21011), 16922 states have internal predecessors, (21011), 6770 states have call successors, (6770), 1441 states have call predecessors, (6770), 1441 states have return successors, (6778), 6708 states have call predecessors, (6778), 6770 states have call successors, (6778) [2022-11-20 20:20:00,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24729 states to 24729 states and 34559 transitions. [2022-11-20 20:20:00,252 INFO L78 Accepts]: Start accepts. Automaton has 24729 states and 34559 transitions. Word has length 625 [2022-11-20 20:20:00,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:20:00,254 INFO L495 AbstractCegarLoop]: Abstraction has 24729 states and 34559 transitions. [2022-11-20 20:20:00,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-20 20:20:00,254 INFO L276 IsEmpty]: Start isEmpty. Operand 24729 states and 34559 transitions. [2022-11-20 20:20:00,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2022-11-20 20:20:00,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:20:00,293 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 3, 3, 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] [2022-11-20 20:20:00,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:00,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:00,515 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:20:00,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:20:00,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2127586326, now seen corresponding path program 1 times [2022-11-20 20:20:00,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:20:00,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321755266] [2022-11-20 20:20:00,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:20:00,519 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 20:20:00,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:20:00,520 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:00,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:20:03,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 3759 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:20:03,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:20:04,089 INFO L134 CoverageAnalysis]: Checked inductivity of 8661 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8529 trivial. 0 not checked. [2022-11-20 20:20:04,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:20:04,090 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:20:04,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321755266] [2022-11-20 20:20:04,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321755266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:20:04,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:20:04,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:20:04,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227675123] [2022-11-20 20:20:04,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:20:04,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:20:04,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:20:04,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:20:04,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:20:04,094 INFO L87 Difference]: Start difference. First operand 24729 states and 34559 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-20 20:20:06,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:20:06,608 INFO L93 Difference]: Finished difference Result 64870 states and 90295 transitions. [2022-11-20 20:20:06,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:20:06,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 644 [2022-11-20 20:20:06,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:20:06,827 INFO L225 Difference]: With dead ends: 64870 [2022-11-20 20:20:06,828 INFO L226 Difference]: Without dead ends: 40234 [2022-11-20 20:20:06,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 642 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 20:20:06,908 INFO L413 NwaCegarLoop]: 6079 mSDtfsCounter, 3605 mSDsluCounter, 4368 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3605 SdHoareTripleChecker+Valid, 10447 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 20:20:06,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3605 Valid, 10447 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 20:20:06,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40234 states. [2022-11-20 20:20:09,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40234 to 40216. [2022-11-20 20:20:09,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40216 states, 26915 states have (on average 1.2647222738250046) internal successors, (34040), 27556 states have internal predecessors, (34040), 10852 states have call successors, (10852), 2450 states have call predecessors, (10852), 2448 states have return successors, (10874), 10744 states have call predecessors, (10874), 10852 states have call successors, (10874) [2022-11-20 20:20:09,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40216 states to 40216 states and 55766 transitions. [2022-11-20 20:20:09,820 INFO L78 Accepts]: Start accepts. Automaton has 40216 states and 55766 transitions. Word has length 644 [2022-11-20 20:20:09,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:20:09,821 INFO L495 AbstractCegarLoop]: Abstraction has 40216 states and 55766 transitions. [2022-11-20 20:20:09,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-20 20:20:09,821 INFO L276 IsEmpty]: Start isEmpty. Operand 40216 states and 55766 transitions. [2022-11-20 20:20:09,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2022-11-20 20:20:09,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:20:09,865 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 44, 44, 44, 44, 44, 44, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:09,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:10,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:10,087 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:20:10,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:20:10,088 INFO L85 PathProgramCache]: Analyzing trace with hash -835444827, now seen corresponding path program 1 times [2022-11-20 20:20:10,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:20:10,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857508375] [2022-11-20 20:20:10,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:20:10,091 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 20:20:10,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:20:10,093 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:10,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:20:12,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 3379 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 20:20:12,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:20:13,105 INFO L134 CoverageAnalysis]: Checked inductivity of 9291 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 8828 trivial. 0 not checked. [2022-11-20 20:20:13,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:20:13,106 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:20:13,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857508375] [2022-11-20 20:20:13,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857508375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:20:13,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:20:13,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 20:20:13,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626990610] [2022-11-20 20:20:13,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:20:13,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 20:20:13,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:20:13,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 20:20:13,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 20:20:13,109 INFO L87 Difference]: Start difference. First operand 40216 states and 55766 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 7 states have internal predecessors, (173), 2 states have call successors, (71), 2 states have call predecessors, (71), 3 states have return successors, (68), 3 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-20 20:20:20,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:20:20,745 INFO L93 Difference]: Finished difference Result 95551 states and 134982 transitions. [2022-11-20 20:20:20,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 20:20:20,746 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 7 states have internal predecessors, (173), 2 states have call successors, (71), 2 states have call predecessors, (71), 3 states have return successors, (68), 3 states have call predecessors, (68), 2 states have call successors, (68) Word has length 683 [2022-11-20 20:20:20,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:20:21,050 INFO L225 Difference]: With dead ends: 95551 [2022-11-20 20:20:21,051 INFO L226 Difference]: Without dead ends: 56542 [2022-11-20 20:20:21,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-20 20:20:21,198 INFO L413 NwaCegarLoop]: 6442 mSDtfsCounter, 2774 mSDsluCounter, 34116 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 981 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3019 SdHoareTripleChecker+Valid, 40558 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 981 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-20 20:20:21,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3019 Valid, 40558 Invalid, 1577 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [981 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-20 20:20:21,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56542 states. [2022-11-20 20:20:24,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56542 to 40258. [2022-11-20 20:20:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40258 states, 26957 states have (on average 1.2642356345290648) internal successors, (34080), 27598 states have internal predecessors, (34080), 10852 states have call successors, (10852), 2450 states have call predecessors, (10852), 2448 states have return successors, (10874), 10744 states have call predecessors, (10874), 10852 states have call successors, (10874) [2022-11-20 20:20:24,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40258 states to 40258 states and 55806 transitions. [2022-11-20 20:20:24,935 INFO L78 Accepts]: Start accepts. Automaton has 40258 states and 55806 transitions. Word has length 683 [2022-11-20 20:20:24,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:20:24,937 INFO L495 AbstractCegarLoop]: Abstraction has 40258 states and 55806 transitions. [2022-11-20 20:20:24,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 7 states have internal predecessors, (173), 2 states have call successors, (71), 2 states have call predecessors, (71), 3 states have return successors, (68), 3 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-20 20:20:24,937 INFO L276 IsEmpty]: Start isEmpty. Operand 40258 states and 55806 transitions. [2022-11-20 20:20:24,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2022-11-20 20:20:24,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:20:24,985 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:25,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:25,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:25,199 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:20:25,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:20:25,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1784548195, now seen corresponding path program 1 times [2022-11-20 20:20:25,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:20:25,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799581858] [2022-11-20 20:20:25,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:20:25,203 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 20:20:25,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:20:25,204 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:25,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:20:28,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 3584 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:20:28,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:20:28,277 INFO L134 CoverageAnalysis]: Checked inductivity of 8739 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8607 trivial. 0 not checked. [2022-11-20 20:20:28,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:20:28,277 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:20:28,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799581858] [2022-11-20 20:20:28,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799581858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:20:28,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:20:28,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:20:28,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371325149] [2022-11-20 20:20:28,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:20:28,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:20:28,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:20:28,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:20:28,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:20:28,281 INFO L87 Difference]: Start difference. First operand 40258 states and 55806 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) [2022-11-20 20:20:32,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:20:32,768 INFO L93 Difference]: Finished difference Result 113194 states and 156466 transitions. [2022-11-20 20:20:32,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:20:32,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) Word has length 722 [2022-11-20 20:20:32,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:20:33,122 INFO L225 Difference]: With dead ends: 113194 [2022-11-20 20:20:33,122 INFO L226 Difference]: Without dead ends: 73029 [2022-11-20 20:20:33,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 720 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 20:20:33,455 INFO L413 NwaCegarLoop]: 5259 mSDtfsCounter, 3903 mSDsluCounter, 4405 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3903 SdHoareTripleChecker+Valid, 9664 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:20:33,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3903 Valid, 9664 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:20:33,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73029 states. [2022-11-20 20:20:37,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73029 to 72995. [2022-11-20 20:20:37,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72995 states, 49011 states have (on average 1.2601456815816858) internal successors, (61761), 50123 states have internal predecessors, (61761), 19437 states have call successors, (19437), 4550 states have call predecessors, (19437), 4546 states have return successors, (19481), 19247 states have call predecessors, (19481), 19437 states have call successors, (19481) [2022-11-20 20:20:38,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72995 states to 72995 states and 100679 transitions. [2022-11-20 20:20:38,421 INFO L78 Accepts]: Start accepts. Automaton has 72995 states and 100679 transitions. Word has length 722 [2022-11-20 20:20:38,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:20:38,422 INFO L495 AbstractCegarLoop]: Abstraction has 72995 states and 100679 transitions. [2022-11-20 20:20:38,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 3 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) [2022-11-20 20:20:38,423 INFO L276 IsEmpty]: Start isEmpty. Operand 72995 states and 100679 transitions. [2022-11-20 20:20:38,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2022-11-20 20:20:38,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:20:38,491 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 44, 44, 44, 44, 44, 44, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:38,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:38,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:38,715 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:20:38,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:20:38,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1570712989, now seen corresponding path program 1 times [2022-11-20 20:20:38,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:20:38,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628956721] [2022-11-20 20:20:38,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:20:38,718 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 20:20:38,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:20:38,719 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:38,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5320401-52d6-4cba-97ee-33f4d719f862/bin/utaipan-6cKwYrpEi9/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 20:20:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:20:41,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 3394 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:20:41,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:20:41,428 INFO L134 CoverageAnalysis]: Checked inductivity of 9291 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 8952 trivial. 0 not checked. [2022-11-20 20:20:41,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:20:41,429 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:20:41,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628956721] [2022-11-20 20:20:41,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628956721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:20:41,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:20:41,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:20:41,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283456809] [2022-11-20 20:20:41,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:20:41,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:20:41,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:20:41,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:20:41,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:20:41,432 INFO L87 Difference]: Start difference. First operand 72995 states and 100679 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (73), 3 states have call predecessors, (73), 3 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70)