./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 --- 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 20:27:44,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:27:44,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:27:45,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:27:45,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:27:45,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:27:45,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:27:45,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:27:45,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:27:45,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:27:45,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:27:45,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:27:45,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:27:45,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:27:45,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:27:45,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:27:45,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:27:45,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:27:45,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:27:45,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:27:45,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:27:45,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:27:45,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:27:45,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:27:45,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:27:45,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:27:45,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:27:45,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:27:45,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:27:45,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:27:45,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:27:45,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:27:45,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:27:45,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:27:45,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:27:45,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:27:45,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:27:45,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:27:45,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:27:45,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:27:45,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:27:45,058 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-20 20:27:45,083 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:27:45,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:27:45,084 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:27:45,084 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:27:45,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:27:45,085 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:27:45,085 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:27:45,085 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:27:45,086 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:27:45,086 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:27:45,086 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:27:45,086 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:27:45,087 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:27:45,087 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:27:45,087 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:27:45,087 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:27:45,088 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:27:45,088 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:27:45,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:27:45,089 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 20:27:45,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:27:45,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:27:45,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:27:45,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:27:45,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:27:45,090 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 20:27:45,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:27:45,090 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:27:45,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:27:45,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:27:45,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:27:45,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:27:45,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:27:45,092 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:27:45,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:27:45,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:27:45,092 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:27:45,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:27:45,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:27:45,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:27:45,093 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_275458c7-cd1e-4345-8a08-a62ca52103f4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 [2022-11-20 20:27:45,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:27:45,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:27:45,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:27:45,432 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:27:45,433 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:27:45,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-20 20:27:48,550 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:27:49,118 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:27:49,119 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-20 20:27:49,159 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/data/1a7ccf8e4/589521e56ef244c59c2478fc9d660ec9/FLAG46d492f8a [2022-11-20 20:27:49,176 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/data/1a7ccf8e4/589521e56ef244c59c2478fc9d660ec9 [2022-11-20 20:27:49,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:27:49,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:27:49,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:27:49,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:27:49,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:27:49,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:27:49" (1/1) ... [2022-11-20 20:27:49,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0bb608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:27:49, skipping insertion in model container [2022-11-20 20:27:49,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:27:49" (1/1) ... [2022-11-20 20:27:49,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:27:49,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:27:50,388 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 20:27:50,394 INFO L158 Benchmark]: Toolchain (without parser) took 1212.68ms. Allocated memory is still 159.4MB. Free memory was 118.9MB in the beginning and 107.2MB in the end (delta: 11.8MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. [2022-11-20 20:27:50,395 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:27:50,396 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1210.00ms. Allocated memory is still 159.4MB. Free memory was 118.2MB in the beginning and 107.2MB in the end (delta: 11.1MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. [2022-11-20 20:27:50,398 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1210.00ms. Allocated memory is still 159.4MB. Free memory was 118.2MB in the beginning and 107.2MB in the end (delta: 11.1MB). Peak memory consumption was 54.7MB. 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_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 --- 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 20:27:52,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:27:52,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:27:52,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:27:52,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:27:52,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:27:52,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:27:52,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:27:52,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:27:52,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:27:52,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:27:52,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:27:52,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:27:52,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:27:52,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:27:52,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:27:52,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:27:52,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:27:52,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:27:52,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:27:52,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:27:52,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:27:52,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:27:52,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:27:52,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:27:52,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:27:52,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:27:52,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:27:52,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:27:52,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:27:52,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:27:52,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:27:52,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:27:52,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:27:52,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:27:52,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:27:52,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:27:52,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:27:52,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:27:52,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:27:52,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:27:52,969 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-20 20:27:53,014 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:27:53,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:27:53,016 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:27:53,016 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:27:53,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:27:53,018 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:27:53,018 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:27:53,019 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:27:53,019 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:27:53,019 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:27:53,021 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:27:53,021 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:27:53,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:27:53,022 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 20:27:53,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:27:53,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:27:53,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:27:53,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:27:53,024 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 20:27:53,024 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 20:27:53,024 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 20:27:53,025 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 20:27:53,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:27:53,025 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:27:53,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:27:53,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:27:53,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 20:27:53,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:27:53,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:27:53,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:27:53,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:27:53,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:27:53,029 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 20:27:53,029 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 20:27:53,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:27:53,030 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:27:53,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 20:27:53,030 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_275458c7-cd1e-4345-8a08-a62ca52103f4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3b9005361fd0095f8dbb62f5fee3acdc88198cbc01de43b11979176397f6891 [2022-11-20 20:27:53,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:27:53,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:27:53,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:27:53,569 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:27:53,569 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:27:53,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-20 20:27:56,768 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:27:57,566 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:27:57,567 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-20 20:27:57,635 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/data/cc43f7988/60dac2fa0d00457bbcaf22b945d67101/FLAGfa7026c10 [2022-11-20 20:27:57,658 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/data/cc43f7988/60dac2fa0d00457bbcaf22b945d67101 [2022-11-20 20:27:57,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:27:57,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:27:57,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:27:57,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:27:57,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:27:57,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:27:57" (1/1) ... [2022-11-20 20:27:57,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d002eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:27:57, skipping insertion in model container [2022-11-20 20:27:57,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:27:57" (1/1) ... [2022-11-20 20:27:57,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:27:57,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:27:59,390 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_275458c7-cd1e-4345-8a08-a62ca52103f4/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2022-11-20 20:27:59,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:27:59,555 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 20:27:59,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:27:59,929 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_275458c7-cd1e-4345-8a08-a62ca52103f4/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2022-11-20 20:27:59,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:27:59,980 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:28:00,322 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_275458c7-cd1e-4345-8a08-a62ca52103f4/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i[228448,228461] [2022-11-20 20:28:00,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:28:00,394 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:28:00,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:28:00 WrapperNode [2022-11-20 20:28:00,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:28:00,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:28:00,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:28:00,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:28:00,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:28:00" (1/1) ... [2022-11-20 20:28:00,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:28:00" (1/1) ... [2022-11-20 20:28:00,587 INFO L138 Inliner]: procedures = 203, calls = 582, calls flagged for inlining = 72, calls inlined = 47, statements flattened = 1149 [2022-11-20 20:28:00,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:28:00,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:28:00,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:28:00,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:28:00,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:28:00" (1/1) ... [2022-11-20 20:28:00,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:28:00" (1/1) ... [2022-11-20 20:28:00,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:28:00" (1/1) ... [2022-11-20 20:28:00,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:28:00" (1/1) ... [2022-11-20 20:28:00,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:28:00" (1/1) ... [2022-11-20 20:28:00,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:28:00" (1/1) ... [2022-11-20 20:28:00,672 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:28:00" (1/1) ... [2022-11-20 20:28:00,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:28:00" (1/1) ... [2022-11-20 20:28:00,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:28:00,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:28:00,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:28:00,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:28:00,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:28:00" (1/1) ... [2022-11-20 20:28:00,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:28:00,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:28:00,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:28:00,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:28:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 20:28:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 20:28:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 20:28:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 20:28:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2022-11-20 20:28:00,836 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2022-11-20 20:28:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_release_buffers [2022-11-20 20:28:00,836 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_release_buffers [2022-11-20 20:28:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 20:28:00,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 20:28:00,837 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-20 20:28:00,837 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-20 20:28:00,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 20:28:00,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 20:28:00,838 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 20:28:00,838 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 20:28:00,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:28:00,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 20:28:00,839 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 20:28:00,839 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 20:28:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 20:28:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 20:28:00,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:28:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 20:28:00,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 20:28:00,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 20:28:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 20:28:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 20:28:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 20:28:00,843 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-20 20:28:00,844 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-20 20:28:00,844 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_poll [2022-11-20 20:28:00,845 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_poll [2022-11-20 20:28:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 20:28:00,845 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 20:28:00,845 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_lookup [2022-11-20 20:28:00,845 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_lookup [2022-11-20 20:28:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_mmap [2022-11-20 20:28:00,846 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_mmap [2022-11-20 20:28:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-20 20:28:00,846 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-20 20:28:00,846 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 20:28:00,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 20:28:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure uspace_ring_map [2022-11-20 20:28:00,847 INFO L138 BoogieDeclarations]: Found implementation of procedure uspace_ring_map [2022-11-20 20:28:00,847 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unmap_user_pages [2022-11-20 20:28:00,848 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unmap_user_pages [2022-11-20 20:28:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 20:28:00,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 20:28:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_write [2022-11-20 20:28:00,849 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_write [2022-11-20 20:28:00,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 20:28:00,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 20:28:00,850 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_open [2022-11-20 20:28:00,850 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_open [2022-11-20 20:28:00,851 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2022-11-20 20:28:00,851 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2022-11-20 20:28:00,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 20:28:00,851 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_to_host [2022-11-20 20:28:00,851 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_to_host [2022-11-20 20:28:00,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:28:00,852 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_idx_inc [2022-11-20 20:28:00,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_idx_inc [2022-11-20 20:28:00,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 20:28:00,852 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_head_event [2022-11-20 20:28:00,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_head_event [2022-11-20 20:28:00,853 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-11-20 20:28:00,853 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-11-20 20:28:00,853 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-20 20:28:00,853 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-20 20:28:00,853 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_exit [2022-11-20 20:28:00,853 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_exit [2022-11-20 20:28:00,854 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tgt_cmd_destroy [2022-11-20 20:28:00,855 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tgt_cmd_destroy [2022-11-20 20:28:00,855 INFO L130 BoogieDeclarations]: Found specification of procedure tgt_ring_init [2022-11-20 20:28:00,855 INFO L138 BoogieDeclarations]: Found implementation of procedure tgt_ring_init [2022-11-20 20:28:00,855 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2022-11-20 20:28:00,855 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2022-11-20 20:28:00,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:28:00,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:28:01,397 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:28:01,400 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:28:03,858 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:28:03,873 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:28:03,874 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 20:28:03,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:28:03 BoogieIcfgContainer [2022-11-20 20:28:03,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:28:03,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:28:03,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:28:03,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:28:03,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:27:57" (1/3) ... [2022-11-20 20:28:03,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b99f55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:28:03, skipping insertion in model container [2022-11-20 20:28:03,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:28:00" (2/3) ... [2022-11-20 20:28:03,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b99f55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:28:03, skipping insertion in model container [2022-11-20 20:28:03,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:28:03" (3/3) ... [2022-11-20 20:28:03,887 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--scsi--scsi_tgt.ko-main.cil.out.i [2022-11-20 20:28:03,909 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:28:03,909 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-20 20:28:03,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:28:03,996 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;@13f80967, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:28:03,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-20 20:28:04,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 387 states, 279 states have (on average 1.3297491039426523) internal successors, (371), 296 states have internal predecessors, (371), 67 states have call successors, (67), 30 states have call predecessors, (67), 30 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-11-20 20:28:04,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 20:28:04,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:04,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:28:04,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:04,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:04,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1109396236, now seen corresponding path program 1 times [2022-11-20 20:28:04,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:04,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484548913] [2022-11-20 20:28:04,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:04,040 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 20:28:04,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:04,046 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:04,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:04,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 20:28:04,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:04,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:28:04,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:04,550 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:04,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484548913] [2022-11-20 20:28:04,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484548913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:04,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:28:04,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 20:28:04,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616623389] [2022-11-20 20:28:04,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:04,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 20:28:04,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:04,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 20:28:04,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 20:28:04,624 INFO L87 Difference]: Start difference. First operand has 387 states, 279 states have (on average 1.3297491039426523) internal successors, (371), 296 states have internal predecessors, (371), 67 states have call successors, (67), 30 states have call predecessors, (67), 30 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Second operand has 2 states, 1 states have (on average 15.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:28:04,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:04,761 INFO L93 Difference]: Finished difference Result 764 states and 1013 transitions. [2022-11-20 20:28:04,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 20:28:04,763 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 15.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-20 20:28:04,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:04,776 INFO L225 Difference]: With dead ends: 764 [2022-11-20 20:28:04,776 INFO L226 Difference]: Without dead ends: 362 [2022-11-20 20:28:04,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 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 20:28:04,788 INFO L413 NwaCegarLoop]: 494 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, 494 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 20:28:04,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:28:04,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-11-20 20:28:04,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2022-11-20 20:28:04,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 265 states have (on average 1.3094339622641509) internal successors, (347), 274 states have internal predecessors, (347), 63 states have call successors, (63), 29 states have call predecessors, (63), 29 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-20 20:28:04,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 472 transitions. [2022-11-20 20:28:04,871 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 472 transitions. Word has length 15 [2022-11-20 20:28:04,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:04,872 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 472 transitions. [2022-11-20 20:28:04,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 15.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:28:04,872 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 472 transitions. [2022-11-20 20:28:04,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 20:28:04,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:04,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:28:04,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:05,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:05,078 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:05,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:05,079 INFO L85 PathProgramCache]: Analyzing trace with hash 31545584, now seen corresponding path program 1 times [2022-11-20 20:28:05,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:05,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632642803] [2022-11-20 20:28:05,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:05,080 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 20:28:05,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:05,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:05,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:05,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:28:05,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:05,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:28:05,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:05,498 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:05,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632642803] [2022-11-20 20:28:05,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1632642803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:05,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:28:05,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:28:05,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003506915] [2022-11-20 20:28:05,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:05,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:28:05,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:05,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:28:05,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:28:05,502 INFO L87 Difference]: Start difference. First operand 362 states and 472 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:28:05,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:05,681 INFO L93 Difference]: Finished difference Result 803 states and 1046 transitions. [2022-11-20 20:28:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:28:05,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-20 20:28:05,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:05,686 INFO L225 Difference]: With dead ends: 803 [2022-11-20 20:28:05,686 INFO L226 Difference]: Without dead ends: 444 [2022-11-20 20:28:05,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 20:28:05,689 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 102 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:05,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 920 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:28:05,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-11-20 20:28:05,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 441. [2022-11-20 20:28:05,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 326 states have (on average 1.3159509202453987) internal successors, (429), 337 states have internal predecessors, (429), 74 states have call successors, (74), 36 states have call predecessors, (74), 36 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-11-20 20:28:05,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 575 transitions. [2022-11-20 20:28:05,757 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 575 transitions. Word has length 16 [2022-11-20 20:28:05,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:05,758 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 575 transitions. [2022-11-20 20:28:05,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:28:05,758 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 575 transitions. [2022-11-20 20:28:05,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 20:28:05,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:05,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:28:05,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:05,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:05,975 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:05,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:05,975 INFO L85 PathProgramCache]: Analyzing trace with hash 869037837, now seen corresponding path program 1 times [2022-11-20 20:28:05,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:05,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729987603] [2022-11-20 20:28:05,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:05,977 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 20:28:05,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:05,978 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:06,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:06,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:28:06,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:06,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:28:06,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:06,402 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:06,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729987603] [2022-11-20 20:28:06,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729987603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:06,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:28:06,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:28:06,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882183479] [2022-11-20 20:28:06,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:06,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:28:06,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:06,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:28:06,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:28:06,405 INFO L87 Difference]: Start difference. First operand 441 states and 575 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:28:06,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:06,566 INFO L93 Difference]: Finished difference Result 1214 states and 1584 transitions. [2022-11-20 20:28:06,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:28:06,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-20 20:28:06,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:06,572 INFO L225 Difference]: With dead ends: 1214 [2022-11-20 20:28:06,572 INFO L226 Difference]: Without dead ends: 776 [2022-11-20 20:28:06,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 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 20:28:06,576 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 454 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:06,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1227 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:28:06,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2022-11-20 20:28:06,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 757. [2022-11-20 20:28:06,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 568 states have (on average 1.3133802816901408) internal successors, (746), 580 states have internal predecessors, (746), 122 states have call successors, (122), 62 states have call predecessors, (122), 62 states have return successors, (121), 121 states have call predecessors, (121), 121 states have call successors, (121) [2022-11-20 20:28:06,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 989 transitions. [2022-11-20 20:28:06,661 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 989 transitions. Word has length 20 [2022-11-20 20:28:06,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:06,662 INFO L495 AbstractCegarLoop]: Abstraction has 757 states and 989 transitions. [2022-11-20 20:28:06,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 20:28:06,663 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 989 transitions. [2022-11-20 20:28:06,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-20 20:28:06,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:06,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:28:06,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:06,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:06,880 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:06,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:06,881 INFO L85 PathProgramCache]: Analyzing trace with hash 2015115071, now seen corresponding path program 1 times [2022-11-20 20:28:06,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:06,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731357887] [2022-11-20 20:28:06,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:06,882 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 20:28:06,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:06,884 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:06,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:07,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 20:28:07,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:07,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:28:07,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:07,538 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:07,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731357887] [2022-11-20 20:28:07,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731357887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:07,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:28:07,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 20:28:07,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501859935] [2022-11-20 20:28:07,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:07,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 20:28:07,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:07,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 20:28:07,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 20:28:07,541 INFO L87 Difference]: Start difference. First operand 757 states and 989 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 20:28:08,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:08,083 INFO L93 Difference]: Finished difference Result 2200 states and 2882 transitions. [2022-11-20 20:28:08,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 20:28:08,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2022-11-20 20:28:08,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:08,092 INFO L225 Difference]: With dead ends: 2200 [2022-11-20 20:28:08,092 INFO L226 Difference]: Without dead ends: 1446 [2022-11-20 20:28:08,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:28:08,097 INFO L413 NwaCegarLoop]: 844 mSDtfsCounter, 491 mSDsluCounter, 2918 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 3762 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:08,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 3762 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:28:08,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2022-11-20 20:28:08,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1362. [2022-11-20 20:28:08,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1019 states have (on average 1.310107948969578) internal successors, (1335), 1037 states have internal predecessors, (1335), 225 states have call successors, (225), 110 states have call predecessors, (225), 113 states have return successors, (229), 225 states have call predecessors, (229), 224 states have call successors, (229) [2022-11-20 20:28:08,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1789 transitions. [2022-11-20 20:28:08,252 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1789 transitions. Word has length 36 [2022-11-20 20:28:08,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:08,253 INFO L495 AbstractCegarLoop]: Abstraction has 1362 states and 1789 transitions. [2022-11-20 20:28:08,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 20:28:08,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1789 transitions. [2022-11-20 20:28:08,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 20:28:08,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:08,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:28:08,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:08,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:08,472 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:08,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:08,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1423267068, now seen corresponding path program 1 times [2022-11-20 20:28:08,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:08,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322447188] [2022-11-20 20:28:08,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:08,474 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 20:28:08,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:08,475 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:08,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:08,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:28:08,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:08,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:28:08,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:08,994 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:08,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322447188] [2022-11-20 20:28:08,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322447188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:08,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:28:08,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 20:28:08,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318257943] [2022-11-20 20:28:08,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:08,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:28:08,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:08,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:28:08,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:28:08,999 INFO L87 Difference]: Start difference. First operand 1362 states and 1789 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:28:09,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:09,220 INFO L93 Difference]: Finished difference Result 2737 states and 3603 transitions. [2022-11-20 20:28:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:28:09,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-11-20 20:28:09,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:09,230 INFO L225 Difference]: With dead ends: 2737 [2022-11-20 20:28:09,230 INFO L226 Difference]: Without dead ends: 1378 [2022-11-20 20:28:09,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 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 20:28:09,237 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 3 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:09,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 932 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:28:09,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2022-11-20 20:28:09,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1372. [2022-11-20 20:28:09,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 1029 states have (on average 1.3090379008746356) internal successors, (1347), 1047 states have internal predecessors, (1347), 225 states have call successors, (225), 110 states have call predecessors, (225), 113 states have return successors, (229), 225 states have call predecessors, (229), 224 states have call successors, (229) [2022-11-20 20:28:09,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1801 transitions. [2022-11-20 20:28:09,340 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1801 transitions. Word has length 39 [2022-11-20 20:28:09,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:09,341 INFO L495 AbstractCegarLoop]: Abstraction has 1372 states and 1801 transitions. [2022-11-20 20:28:09,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:28:09,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1801 transitions. [2022-11-20 20:28:09,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-20 20:28:09,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:09,347 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 20:28:09,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:09,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:09,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:09,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:09,561 INFO L85 PathProgramCache]: Analyzing trace with hash -386442113, now seen corresponding path program 1 times [2022-11-20 20:28:09,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:09,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1925216301] [2022-11-20 20:28:09,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:09,562 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 20:28:09,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:09,563 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:09,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:10,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:10,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:10,046 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:28:10,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:10,047 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:10,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1925216301] [2022-11-20 20:28:10,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1925216301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:10,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:28:10,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 20:28:10,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311665064] [2022-11-20 20:28:10,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:10,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 20:28:10,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:10,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 20:28:10,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 20:28:10,050 INFO L87 Difference]: Start difference. First operand 1372 states and 1801 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 20:28:10,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:10,210 INFO L93 Difference]: Finished difference Result 2155 states and 2822 transitions. [2022-11-20 20:28:10,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 20:28:10,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2022-11-20 20:28:10,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:10,215 INFO L225 Difference]: With dead ends: 2155 [2022-11-20 20:28:10,215 INFO L226 Difference]: Without dead ends: 769 [2022-11-20 20:28:10,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:28:10,223 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 3 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:10,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1404 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:28:10,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2022-11-20 20:28:10,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 769. [2022-11-20 20:28:10,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 579 states have (on average 1.305699481865285) internal successors, (756), 592 states have internal predecessors, (756), 122 states have call successors, (122), 62 states have call predecessors, (122), 63 states have return successors, (122), 121 states have call predecessors, (122), 121 states have call successors, (122) [2022-11-20 20:28:10,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1000 transitions. [2022-11-20 20:28:10,274 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1000 transitions. Word has length 38 [2022-11-20 20:28:10,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:10,276 INFO L495 AbstractCegarLoop]: Abstraction has 769 states and 1000 transitions. [2022-11-20 20:28:10,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 20:28:10,277 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1000 transitions. [2022-11-20 20:28:10,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-20 20:28:10,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:10,278 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 20:28:10,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:10,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:10,492 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:10,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:10,493 INFO L85 PathProgramCache]: Analyzing trace with hash 810251236, now seen corresponding path program 1 times [2022-11-20 20:28:10,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:10,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271241018] [2022-11-20 20:28:10,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:10,494 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 20:28:10,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:10,495 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:10,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:10,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:10,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:11,039 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:28:11,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:11,145 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:28:11,145 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:11,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1271241018] [2022-11-20 20:28:11,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1271241018] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:11,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [399084567] [2022-11-20 20:28:11,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:11,146 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:28:11,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:28:11,152 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:28:11,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-11-20 20:28:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:12,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:12,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:12,278 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:28:12,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:12,349 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:28:12,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [399084567] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:12,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504466613] [2022-11-20 20:28:12,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:12,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:28:12,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:28:12,360 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:28:12,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 20:28:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:12,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:28:12,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:12,868 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 20:28:12,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:12,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504466613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:12,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-20 20:28:12,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3, 3, 3, 3] total 6 [2022-11-20 20:28:12,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563542595] [2022-11-20 20:28:12,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:12,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:28:12,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:12,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:28:12,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:12,877 INFO L87 Difference]: Start difference. First operand 769 states and 1000 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:28:13,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:13,007 INFO L93 Difference]: Finished difference Result 773 states and 1006 transitions. [2022-11-20 20:28:13,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:28:13,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2022-11-20 20:28:13,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:13,012 INFO L225 Difference]: With dead ends: 773 [2022-11-20 20:28:13,012 INFO L226 Difference]: Without dead ends: 772 [2022-11-20 20:28:13,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:13,014 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 3 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:13,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 926 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:28:13,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2022-11-20 20:28:13,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 760. [2022-11-20 20:28:13,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 571 states have (on average 1.3029772329246936) internal successors, (744), 583 states have internal predecessors, (744), 122 states have call successors, (122), 62 states have call predecessors, (122), 63 states have return successors, (122), 121 states have call predecessors, (122), 121 states have call successors, (122) [2022-11-20 20:28:13,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 988 transitions. [2022-11-20 20:28:13,059 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 988 transitions. Word has length 45 [2022-11-20 20:28:13,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:13,060 INFO L495 AbstractCegarLoop]: Abstraction has 760 states and 988 transitions. [2022-11-20 20:28:13,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:28:13,060 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 988 transitions. [2022-11-20 20:28:13,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-20 20:28:13,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:13,062 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 20:28:13,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:13,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:13,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-20 20:28:13,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:28:13,685 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:13,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:13,685 INFO L85 PathProgramCache]: Analyzing trace with hash 327596328, now seen corresponding path program 1 times [2022-11-20 20:28:13,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:13,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779641557] [2022-11-20 20:28:13,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:13,686 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 20:28:13,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:13,692 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:13,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (11)] Waiting until timeout for monitored process [2022-11-20 20:28:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:14,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:28:14,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:14,125 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:28:14,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:14,126 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:14,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779641557] [2022-11-20 20:28:14,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779641557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:14,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:28:14,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:28:14,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560308300] [2022-11-20 20:28:14,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:14,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:28:14,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:14,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:28:14,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:28:14,130 INFO L87 Difference]: Start difference. First operand 760 states and 988 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:28:14,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:14,296 INFO L93 Difference]: Finished difference Result 1527 states and 1987 transitions. [2022-11-20 20:28:14,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:28:14,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 47 [2022-11-20 20:28:14,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:14,301 INFO L225 Difference]: With dead ends: 1527 [2022-11-20 20:28:14,302 INFO L226 Difference]: Without dead ends: 760 [2022-11-20 20:28:14,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:14,305 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 6 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:14,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1864 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:28:14,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2022-11-20 20:28:14,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 760. [2022-11-20 20:28:14,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 571 states have (on average 1.299474605954466) internal successors, (742), 581 states have internal predecessors, (742), 122 states have call successors, (122), 62 states have call predecessors, (122), 63 states have return successors, (122), 121 states have call predecessors, (122), 121 states have call successors, (122) [2022-11-20 20:28:14,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 986 transitions. [2022-11-20 20:28:14,350 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 986 transitions. Word has length 47 [2022-11-20 20:28:14,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:14,351 INFO L495 AbstractCegarLoop]: Abstraction has 760 states and 986 transitions. [2022-11-20 20:28:14,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 20:28:14,351 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 986 transitions. [2022-11-20 20:28:14,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-20 20:28:14,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:14,353 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 20:28:14,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (11)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:14,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:14,571 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:14,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:14,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1816117479, now seen corresponding path program 1 times [2022-11-20 20:28:14,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:14,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220268356] [2022-11-20 20:28:14,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:14,572 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 20:28:14,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:14,574 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:14,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (12)] Waiting until timeout for monitored process [2022-11-20 20:28:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:15,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:28:15,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:15,176 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:28:15,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:15,176 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:15,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220268356] [2022-11-20 20:28:15,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220268356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:15,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:28:15,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 20:28:15,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387357422] [2022-11-20 20:28:15,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:15,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:28:15,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:15,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:28:15,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:28:15,179 INFO L87 Difference]: Start difference. First operand 760 states and 986 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 20:28:15,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:15,290 INFO L93 Difference]: Finished difference Result 1689 states and 2239 transitions. [2022-11-20 20:28:15,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:28:15,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2022-11-20 20:28:15,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:15,296 INFO L225 Difference]: With dead ends: 1689 [2022-11-20 20:28:15,296 INFO L226 Difference]: Without dead ends: 932 [2022-11-20 20:28:15,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 20:28:15,300 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 87 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 2146 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:15,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 2146 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:28:15,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2022-11-20 20:28:15,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 768. [2022-11-20 20:28:15,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 577 states have (on average 1.2963604852686308) internal successors, (748), 587 states have internal predecessors, (748), 122 states have call successors, (122), 62 states have call predecessors, (122), 65 states have return successors, (126), 123 states have call predecessors, (126), 121 states have call successors, (126) [2022-11-20 20:28:15,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 996 transitions. [2022-11-20 20:28:15,381 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 996 transitions. Word has length 68 [2022-11-20 20:28:15,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:15,382 INFO L495 AbstractCegarLoop]: Abstraction has 768 states and 996 transitions. [2022-11-20 20:28:15,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 20:28:15,382 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 996 transitions. [2022-11-20 20:28:15,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-20 20:28:15,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:15,384 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 20:28:15,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (12)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:15,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:15,598 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:15,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:15,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1727346173, now seen corresponding path program 1 times [2022-11-20 20:28:15,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:15,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832273347] [2022-11-20 20:28:15,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:15,600 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 20:28:15,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:15,601 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:15,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (13)] Waiting until timeout for monitored process [2022-11-20 20:28:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:16,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 20:28:16,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:16,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 20:28:16,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:16,156 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:16,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832273347] [2022-11-20 20:28:16,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832273347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:16,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:28:16,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 20:28:16,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375615264] [2022-11-20 20:28:16,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:16,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 20:28:16,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:16,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 20:28:16,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:16,159 INFO L87 Difference]: Start difference. First operand 768 states and 996 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 20:28:16,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:16,424 INFO L93 Difference]: Finished difference Result 1697 states and 2247 transitions. [2022-11-20 20:28:16,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 20:28:16,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2022-11-20 20:28:16,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:16,430 INFO L225 Difference]: With dead ends: 1697 [2022-11-20 20:28:16,430 INFO L226 Difference]: Without dead ends: 932 [2022-11-20 20:28:16,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:28:16,434 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 251 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:16,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 3125 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:28:16,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2022-11-20 20:28:16,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 772. [2022-11-20 20:28:16,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 581 states have (on average 1.2943201376936317) internal successors, (752), 591 states have internal predecessors, (752), 122 states have call successors, (122), 62 states have call predecessors, (122), 65 states have return successors, (126), 123 states have call predecessors, (126), 121 states have call successors, (126) [2022-11-20 20:28:16,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1000 transitions. [2022-11-20 20:28:16,482 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1000 transitions. Word has length 64 [2022-11-20 20:28:16,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:16,482 INFO L495 AbstractCegarLoop]: Abstraction has 772 states and 1000 transitions. [2022-11-20 20:28:16,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 20:28:16,483 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1000 transitions. [2022-11-20 20:28:16,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-20 20:28:16,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:16,484 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 20:28:16,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (13)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:16,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:16,707 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:16,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:16,708 INFO L85 PathProgramCache]: Analyzing trace with hash 925299870, now seen corresponding path program 1 times [2022-11-20 20:28:16,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:16,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759046698] [2022-11-20 20:28:16,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:16,709 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 20:28:16,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:16,710 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:16,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (14)] Waiting until timeout for monitored process [2022-11-20 20:28:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:17,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:17,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:17,238 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:28:17,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:17,337 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 20:28:17,337 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:17,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759046698] [2022-11-20 20:28:17,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759046698] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:17,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [979749507] [2022-11-20 20:28:17,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:17,338 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:28:17,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:28:17,340 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:28:17,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2022-11-20 20:28:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:18,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:18,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:18,520 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:28:18,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:18,597 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 20:28:18,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [979749507] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:18,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46288502] [2022-11-20 20:28:18,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:18,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:28:18,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:28:18,599 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:28:18,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-20 20:28:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:19,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:28:19,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:19,130 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-20 20:28:19,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:19,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46288502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:19,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-20 20:28:19,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4, 4] total 7 [2022-11-20 20:28:19,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107070228] [2022-11-20 20:28:19,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:19,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:28:19,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:19,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:28:19,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:19,133 INFO L87 Difference]: Start difference. First operand 772 states and 1000 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 20:28:19,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:19,229 INFO L93 Difference]: Finished difference Result 1556 states and 2022 transitions. [2022-11-20 20:28:19,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:28:19,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 72 [2022-11-20 20:28:19,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:19,234 INFO L225 Difference]: With dead ends: 1556 [2022-11-20 20:28:19,235 INFO L226 Difference]: Without dead ends: 787 [2022-11-20 20:28:19,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:19,238 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 1 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:19,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 927 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:28:19,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-11-20 20:28:19,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 784. [2022-11-20 20:28:19,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 593 states have (on average 1.2883642495784149) internal successors, (764), 603 states have internal predecessors, (764), 122 states have call successors, (122), 62 states have call predecessors, (122), 65 states have return successors, (126), 123 states have call predecessors, (126), 121 states have call successors, (126) [2022-11-20 20:28:19,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1012 transitions. [2022-11-20 20:28:19,288 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1012 transitions. Word has length 72 [2022-11-20 20:28:19,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:19,288 INFO L495 AbstractCegarLoop]: Abstraction has 784 states and 1012 transitions. [2022-11-20 20:28:19,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 20:28:19,289 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1012 transitions. [2022-11-20 20:28:19,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 20:28:19,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:19,290 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 20:28:19,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:19,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-11-20 20:28:19,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (14)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:19,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:19,905 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:19,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:19,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1023324855, now seen corresponding path program 1 times [2022-11-20 20:28:19,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:19,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892644626] [2022-11-20 20:28:19,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:19,907 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 20:28:19,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:19,908 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:19,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (17)] Waiting until timeout for monitored process [2022-11-20 20:28:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:20,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:20,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:20,485 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 20:28:20,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:20,588 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:28:20,588 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:20,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892644626] [2022-11-20 20:28:20,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892644626] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:20,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [322277840] [2022-11-20 20:28:20,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:20,589 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:28:20,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:28:20,592 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:28:20,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-11-20 20:28:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:21,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:21,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:21,772 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 20:28:21,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:21,852 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 20:28:21,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [322277840] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:21,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209723615] [2022-11-20 20:28:21,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:21,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:28:21,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:28:21,857 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:28:21,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-20 20:28:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:22,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:28:22,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:22,440 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 20:28:22,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:22,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209723615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:22,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-20 20:28:22,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4, 4] total 7 [2022-11-20 20:28:22,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750942] [2022-11-20 20:28:22,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:22,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:28:22,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:22,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:28:22,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:22,443 INFO L87 Difference]: Start difference. First operand 784 states and 1012 transitions. Second operand has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 20:28:22,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:22,520 INFO L93 Difference]: Finished difference Result 784 states and 1012 transitions. [2022-11-20 20:28:22,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:28:22,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 77 [2022-11-20 20:28:22,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:22,525 INFO L225 Difference]: With dead ends: 784 [2022-11-20 20:28:22,526 INFO L226 Difference]: Without dead ends: 764 [2022-11-20 20:28:22,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:22,527 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 1 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:22,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 925 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:28:22,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2022-11-20 20:28:22,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 758. [2022-11-20 20:28:22,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 573 states have (on average 1.287958115183246) internal successors, (738), 581 states have internal predecessors, (738), 119 states have call successors, (119), 60 states have call predecessors, (119), 63 states have return successors, (124), 121 states have call predecessors, (124), 119 states have call successors, (124) [2022-11-20 20:28:22,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 981 transitions. [2022-11-20 20:28:22,571 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 981 transitions. Word has length 77 [2022-11-20 20:28:22,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:22,571 INFO L495 AbstractCegarLoop]: Abstraction has 758 states and 981 transitions. [2022-11-20 20:28:22,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 20:28:22,572 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 981 transitions. [2022-11-20 20:28:22,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-20 20:28:22,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:22,573 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 20:28:22,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (17)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:22,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:23,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:23,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:28:23,202 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:23,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:23,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1048484910, now seen corresponding path program 1 times [2022-11-20 20:28:23,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:23,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018031147] [2022-11-20 20:28:23,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:23,203 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 20:28:23,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:23,204 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:23,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (20)] Waiting until timeout for monitored process [2022-11-20 20:28:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:23,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:23,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:23,746 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 20:28:23,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:23,833 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 20:28:23,833 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:23,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018031147] [2022-11-20 20:28:23,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018031147] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:23,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1543819608] [2022-11-20 20:28:23,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:23,834 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:28:23,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:28:23,835 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:28:23,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2022-11-20 20:28:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:24,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 20:28:24,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:24,536 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-20 20:28:24,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:24,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1543819608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:24,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:28:24,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4] total 9 [2022-11-20 20:28:24,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294751892] [2022-11-20 20:28:24,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:24,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 20:28:24,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:24,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 20:28:24,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:28:24,539 INFO L87 Difference]: Start difference. First operand 758 states and 981 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 20:28:24,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:24,677 INFO L93 Difference]: Finished difference Result 1681 states and 2221 transitions. [2022-11-20 20:28:24,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 20:28:24,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 87 [2022-11-20 20:28:24,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:24,683 INFO L225 Difference]: With dead ends: 1681 [2022-11-20 20:28:24,684 INFO L226 Difference]: Without dead ends: 926 [2022-11-20 20:28:24,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-20 20:28:24,688 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 86 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 2146 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:24,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 2146 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:28:24,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2022-11-20 20:28:24,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 762. [2022-11-20 20:28:24,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 577 states have (on average 1.2859618717504333) internal successors, (742), 583 states have internal predecessors, (742), 119 states have call successors, (119), 60 states have call predecessors, (119), 63 states have return successors, (124), 123 states have call predecessors, (124), 119 states have call successors, (124) [2022-11-20 20:28:24,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 985 transitions. [2022-11-20 20:28:24,737 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 985 transitions. Word has length 87 [2022-11-20 20:28:24,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:24,737 INFO L495 AbstractCegarLoop]: Abstraction has 762 states and 985 transitions. [2022-11-20 20:28:24,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 20:28:24,738 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 985 transitions. [2022-11-20 20:28:24,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-20 20:28:24,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:24,740 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-11-20 20:28:24,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (20)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:24,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:25,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt [2022-11-20 20:28:25,154 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:25,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:25,155 INFO L85 PathProgramCache]: Analyzing trace with hash -111971575, now seen corresponding path program 1 times [2022-11-20 20:28:25,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:25,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010339146] [2022-11-20 20:28:25,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:25,156 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 20:28:25,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:25,158 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:25,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (22)] Waiting until timeout for monitored process [2022-11-20 20:28:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:25,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:25,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:25,771 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:28:25,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:25,863 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 20:28:25,863 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:25,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010339146] [2022-11-20 20:28:25,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2010339146] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:25,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [542683982] [2022-11-20 20:28:25,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:25,864 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:28:25,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:28:25,869 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:28:25,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2022-11-20 20:28:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:26,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:28:26,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-20 20:28:26,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:26,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [542683982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:26,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:28:26,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 7 [2022-11-20 20:28:26,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954556371] [2022-11-20 20:28:26,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:26,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:28:26,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:26,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:28:26,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:26,566 INFO L87 Difference]: Start difference. First operand 762 states and 985 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 20:28:26,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:26,803 INFO L93 Difference]: Finished difference Result 2134 states and 2760 transitions. [2022-11-20 20:28:26,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:28:26,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 91 [2022-11-20 20:28:26,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:26,812 INFO L225 Difference]: With dead ends: 2134 [2022-11-20 20:28:26,812 INFO L226 Difference]: Without dead ends: 1375 [2022-11-20 20:28:26,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:26,817 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 413 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:26,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 1008 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:28:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2022-11-20 20:28:26,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1373. [2022-11-20 20:28:26,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 1037 states have (on average 1.2719382835101254) internal successors, (1319), 1047 states have internal predecessors, (1319), 215 states have call successors, (215), 113 states have call predecessors, (215), 118 states have return successors, (223), 221 states have call predecessors, (223), 215 states have call successors, (223) [2022-11-20 20:28:26,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1757 transitions. [2022-11-20 20:28:26,898 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1757 transitions. Word has length 91 [2022-11-20 20:28:26,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:26,898 INFO L495 AbstractCegarLoop]: Abstraction has 1373 states and 1757 transitions. [2022-11-20 20:28:26,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 20:28:26,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1757 transitions. [2022-11-20 20:28:26,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-20 20:28:26,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:26,901 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-11-20 20:28:26,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:27,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (22)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:27,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:27,307 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:27,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:27,308 INFO L85 PathProgramCache]: Analyzing trace with hash 732266230, now seen corresponding path program 1 times [2022-11-20 20:28:27,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:27,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398013589] [2022-11-20 20:28:27,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:27,309 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 20:28:27,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:27,311 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:27,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (24)] Waiting until timeout for monitored process [2022-11-20 20:28:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:27,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:27,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:27,947 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:28:27,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:28,035 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 20:28:28,035 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:28,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398013589] [2022-11-20 20:28:28,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398013589] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:28,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [187793864] [2022-11-20 20:28:28,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:28,037 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:28:28,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:28:28,038 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:28:28,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2022-11-20 20:28:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:29,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:29,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:29,342 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:28:29,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:29,416 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 20:28:29,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [187793864] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:29,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041416383] [2022-11-20 20:28:29,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:29,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:28:29,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:28:29,418 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:28:29,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-11-20 20:28:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:29,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:28:29,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:29,986 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:28:29,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:29,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041416383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:29,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-20 20:28:29,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4, 4] total 7 [2022-11-20 20:28:29,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511008932] [2022-11-20 20:28:29,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:29,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:28:29,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:29,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:28:29,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:29,989 INFO L87 Difference]: Start difference. First operand 1373 states and 1757 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 20:28:30,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:30,114 INFO L93 Difference]: Finished difference Result 2779 states and 3583 transitions. [2022-11-20 20:28:30,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:28:30,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 95 [2022-11-20 20:28:30,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:30,123 INFO L225 Difference]: With dead ends: 2779 [2022-11-20 20:28:30,123 INFO L226 Difference]: Without dead ends: 1409 [2022-11-20 20:28:30,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:30,129 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 3 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:30,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 911 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:28:30,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2022-11-20 20:28:30,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1397. [2022-11-20 20:28:30,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1061 states have (on average 1.2695570216776626) internal successors, (1347), 1071 states have internal predecessors, (1347), 215 states have call successors, (215), 113 states have call predecessors, (215), 118 states have return successors, (223), 221 states have call predecessors, (223), 215 states have call successors, (223) [2022-11-20 20:28:30,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 1785 transitions. [2022-11-20 20:28:30,210 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 1785 transitions. Word has length 95 [2022-11-20 20:28:30,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:30,210 INFO L495 AbstractCegarLoop]: Abstraction has 1397 states and 1785 transitions. [2022-11-20 20:28:30,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 20:28:30,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 1785 transitions. [2022-11-20 20:28:30,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-20 20:28:30,212 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:30,212 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-11-20 20:28:30,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:30,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (24)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:30,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:30,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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=3,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt [2022-11-20 20:28:30,828 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:30,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:30,828 INFO L85 PathProgramCache]: Analyzing trace with hash -145693634, now seen corresponding path program 1 times [2022-11-20 20:28:30,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:30,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856776866] [2022-11-20 20:28:30,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:30,829 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 20:28:30,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:30,830 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:30,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (27)] Waiting until timeout for monitored process [2022-11-20 20:28:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:31,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:31,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:31,644 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:28:31,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:31,743 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 20:28:31,743 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:31,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856776866] [2022-11-20 20:28:31,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856776866] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:31,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [813860691] [2022-11-20 20:28:31,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:31,744 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:28:31,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:28:31,748 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:28:31,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2022-11-20 20:28:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:32,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:32,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 20:28:32,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 20:28:33,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [813860691] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:33,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361960695] [2022-11-20 20:28:33,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:33,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:28:33,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:28:33,068 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:28:33,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-11-20 20:28:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:33,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:28:33,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:33,851 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:28:33,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:33,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361960695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:33,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-20 20:28:33,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4, 4] total 7 [2022-11-20 20:28:33,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314517007] [2022-11-20 20:28:33,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:33,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:28:33,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:33,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:28:33,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:33,853 INFO L87 Difference]: Start difference. First operand 1397 states and 1785 transitions. Second operand has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 20:28:34,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:34,042 INFO L93 Difference]: Finished difference Result 2147 states and 2733 transitions. [2022-11-20 20:28:34,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:28:34,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 94 [2022-11-20 20:28:34,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:34,054 INFO L225 Difference]: With dead ends: 2147 [2022-11-20 20:28:34,054 INFO L226 Difference]: Without dead ends: 2146 [2022-11-20 20:28:34,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:34,056 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 365 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:34,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 977 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:28:34,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2022-11-20 20:28:34,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 2143. [2022-11-20 20:28:34,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2143 states, 1631 states have (on average 1.2630288166768853) internal successors, (2060), 1645 states have internal predecessors, (2060), 328 states have call successors, (328), 173 states have call predecessors, (328), 181 states have return successors, (341), 338 states have call predecessors, (341), 328 states have call successors, (341) [2022-11-20 20:28:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2143 states to 2143 states and 2729 transitions. [2022-11-20 20:28:34,234 INFO L78 Accepts]: Start accepts. Automaton has 2143 states and 2729 transitions. Word has length 94 [2022-11-20 20:28:34,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:34,235 INFO L495 AbstractCegarLoop]: Abstraction has 2143 states and 2729 transitions. [2022-11-20 20:28:34,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 20:28:34,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2143 states and 2729 transitions. [2022-11-20 20:28:34,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-20 20:28:34,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:34,237 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 20:28:34,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (27)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:34,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2022-11-20 20:28:34,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2022-11-20 20:28:34,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt [2022-11-20 20:28:34,860 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:34,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:34,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1793064332, now seen corresponding path program 1 times [2022-11-20 20:28:34,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:34,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372482075] [2022-11-20 20:28:34,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:34,861 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 20:28:34,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:34,862 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:34,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (30)] Waiting until timeout for monitored process [2022-11-20 20:28:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:35,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:35,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:35,481 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 20:28:35,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:35,583 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-20 20:28:35,584 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:35,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372482075] [2022-11-20 20:28:35,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372482075] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:35,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [213566920] [2022-11-20 20:28:35,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:35,584 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:28:35,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:28:35,587 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:28:35,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2022-11-20 20:28:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:36,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:36,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:36,940 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 20:28:36,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:37,021 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-20 20:28:37,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [213566920] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:37,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794577325] [2022-11-20 20:28:37,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:37,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:28:37,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:28:37,024 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:28:37,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-11-20 20:28:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:37,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:28:37,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:37,677 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-20 20:28:37,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:37,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794577325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:37,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-20 20:28:37,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4, 4] total 7 [2022-11-20 20:28:37,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657509117] [2022-11-20 20:28:37,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:37,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:28:37,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:37,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:28:37,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:37,679 INFO L87 Difference]: Start difference. First operand 2143 states and 2729 transitions. Second operand has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 20:28:37,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:37,829 INFO L93 Difference]: Finished difference Result 2155 states and 2747 transitions. [2022-11-20 20:28:37,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:28:37,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 102 [2022-11-20 20:28:37,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:37,841 INFO L225 Difference]: With dead ends: 2155 [2022-11-20 20:28:37,841 INFO L226 Difference]: Without dead ends: 2154 [2022-11-20 20:28:37,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 20:28:37,843 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 3 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:37,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 906 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:28:37,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2022-11-20 20:28:37,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 2112. [2022-11-20 20:28:37,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2112 states, 1601 states have (on average 1.2604622111180512) internal successors, (2018), 1614 states have internal predecessors, (2018), 328 states have call successors, (328), 173 states have call predecessors, (328), 181 states have return successors, (341), 338 states have call predecessors, (341), 328 states have call successors, (341) [2022-11-20 20:28:37,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2112 states to 2112 states and 2687 transitions. [2022-11-20 20:28:37,984 INFO L78 Accepts]: Start accepts. Automaton has 2112 states and 2687 transitions. Word has length 102 [2022-11-20 20:28:37,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:37,985 INFO L495 AbstractCegarLoop]: Abstraction has 2112 states and 2687 transitions. [2022-11-20 20:28:37,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-20 20:28:37,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2112 states and 2687 transitions. [2022-11-20 20:28:37,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-20 20:28:37,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:37,990 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 20:28:38,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2022-11-20 20:28:38,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (30)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:38,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:38,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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=3,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:28:38,600 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:38,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:38,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1277523470, now seen corresponding path program 1 times [2022-11-20 20:28:38,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:38,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3508498] [2022-11-20 20:28:38,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:38,602 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 20:28:38,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:38,604 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:38,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (33)] Waiting until timeout for monitored process [2022-11-20 20:28:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:39,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:39,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:39,315 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 20:28:39,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 20:28:39,401 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:39,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3508498] [2022-11-20 20:28:39,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3508498] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:39,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2027448362] [2022-11-20 20:28:39,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:39,402 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:28:39,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:28:39,405 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:28:39,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2022-11-20 20:28:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:40,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:40,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:40,702 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 20:28:40,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:40,777 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-20 20:28:40,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2027448362] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:40,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170585553] [2022-11-20 20:28:40,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:40,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:28:40,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:28:40,779 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 20:28:40,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-11-20 20:28:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:41,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 20:28:41,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:41,725 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:28:41,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:42,058 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 20:28:42,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170585553] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:42,058 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-20 20:28:42,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 3, 3] total 10 [2022-11-20 20:28:42,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407275155] [2022-11-20 20:28:42,059 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-20 20:28:42,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 20:28:42,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:42,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 20:28:42,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-20 20:28:42,061 INFO L87 Difference]: Start difference. First operand 2112 states and 2687 transitions. Second operand has 10 states, 10 states have (on average 22.8) internal successors, (228), 10 states have internal predecessors, (228), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-20 20:28:47,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:47,570 INFO L93 Difference]: Finished difference Result 8550 states and 10956 transitions. [2022-11-20 20:28:47,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-20 20:28:47,572 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 22.8) internal successors, (228), 10 states have internal predecessors, (228), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 109 [2022-11-20 20:28:47,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:47,605 INFO L225 Difference]: With dead ends: 8550 [2022-11-20 20:28:47,605 INFO L226 Difference]: Without dead ends: 6441 [2022-11-20 20:28:47,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 661 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=265, Invalid=665, Unknown=0, NotChecked=0, Total=930 [2022-11-20 20:28:47,614 INFO L413 NwaCegarLoop]: 1070 mSDtfsCounter, 2686 mSDsluCounter, 3439 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2702 SdHoareTripleChecker+Valid, 4509 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:47,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2702 Valid, 4509 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-20 20:28:47,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6441 states. [2022-11-20 20:28:48,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6441 to 5045. [2022-11-20 20:28:48,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5045 states, 3869 states have (on average 1.2574308606875162) internal successors, (4865), 3897 states have internal predecessors, (4865), 758 states have call successors, (758), 399 states have call predecessors, (758), 417 states have return successors, (787), 780 states have call predecessors, (787), 758 states have call successors, (787) [2022-11-20 20:28:48,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5045 states to 5045 states and 6410 transitions. [2022-11-20 20:28:48,104 INFO L78 Accepts]: Start accepts. Automaton has 5045 states and 6410 transitions. Word has length 109 [2022-11-20 20:28:48,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:48,104 INFO L495 AbstractCegarLoop]: Abstraction has 5045 states and 6410 transitions. [2022-11-20 20:28:48,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.8) internal successors, (228), 10 states have internal predecessors, (228), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-20 20:28:48,105 INFO L276 IsEmpty]: Start isEmpty. Operand 5045 states and 6410 transitions. [2022-11-20 20:28:48,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-20 20:28:48,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:48,114 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-11-20 20:28:48,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (33)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:48,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2022-11-20 20:28:48,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:48,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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=3,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 20:28:48,728 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:48,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:48,729 INFO L85 PathProgramCache]: Analyzing trace with hash -644528845, now seen corresponding path program 1 times [2022-11-20 20:28:48,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:48,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041491129] [2022-11-20 20:28:48,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:48,730 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 20:28:48,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:48,731 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:48,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (36)] Waiting until timeout for monitored process [2022-11-20 20:28:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:49,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 20:28:49,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:49,947 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 124 proven. 40 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-11-20 20:28:49,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:50,184 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 8 proven. 148 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-20 20:28:50,184 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:50,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041491129] [2022-11-20 20:28:50,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041491129] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:50,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1287891683] [2022-11-20 20:28:50,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:50,185 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:28:50,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:28:50,187 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:28:50,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2022-11-20 20:28:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:51,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:28:51,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:51,263 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-11-20 20:28:51,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:51,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1287891683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:51,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:28:51,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 7] total 13 [2022-11-20 20:28:51,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930058907] [2022-11-20 20:28:51,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:51,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:28:51,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:51,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:28:51,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 20:28:51,268 INFO L87 Difference]: Start difference. First operand 5045 states and 6410 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 20:28:51,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:51,678 INFO L93 Difference]: Finished difference Result 9622 states and 12248 transitions. [2022-11-20 20:28:51,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:28:51,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 184 [2022-11-20 20:28:51,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:51,704 INFO L225 Difference]: With dead ends: 9622 [2022-11-20 20:28:51,704 INFO L226 Difference]: Without dead ends: 4697 [2022-11-20 20:28:51,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 20:28:51,716 INFO L413 NwaCegarLoop]: 841 mSDtfsCounter, 408 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:51,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 1259 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:28:51,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4697 states. [2022-11-20 20:28:52,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4697 to 4692. [2022-11-20 20:28:52,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4692 states, 3564 states have (on average 1.2424242424242424) internal successors, (4428), 3595 states have internal predecessors, (4428), 734 states have call successors, (734), 378 states have call predecessors, (734), 393 states have return successors, (757), 750 states have call predecessors, (757), 734 states have call successors, (757) [2022-11-20 20:28:52,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4692 states to 4692 states and 5919 transitions. [2022-11-20 20:28:52,130 INFO L78 Accepts]: Start accepts. Automaton has 4692 states and 5919 transitions. Word has length 184 [2022-11-20 20:28:52,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:52,131 INFO L495 AbstractCegarLoop]: Abstraction has 4692 states and 5919 transitions. [2022-11-20 20:28:52,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 20:28:52,131 INFO L276 IsEmpty]: Start isEmpty. Operand 4692 states and 5919 transitions. [2022-11-20 20:28:52,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2022-11-20 20:28:52,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:52,154 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:28:52,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2022-11-20 20:28:52,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (36)] Ended with exit code 0 [2022-11-20 20:28:52,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:52,562 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:52,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:52,563 INFO L85 PathProgramCache]: Analyzing trace with hash -659587649, now seen corresponding path program 1 times [2022-11-20 20:28:52,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:52,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102954422] [2022-11-20 20:28:52,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:52,564 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 20:28:52,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:52,565 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:52,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (38)] Waiting until timeout for monitored process [2022-11-20 20:28:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:54,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 2182 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 20:28:54,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:54,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 630 proven. 40 refuted. 0 times theorem prover too weak. 1621 trivial. 0 not checked. [2022-11-20 20:28:54,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:28:54,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 36 proven. 580 refuted. 0 times theorem prover too weak. 1675 trivial. 0 not checked. [2022-11-20 20:28:54,917 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:28:54,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102954422] [2022-11-20 20:28:54,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102954422] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:28:54,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [475367315] [2022-11-20 20:28:54,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:54,918 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:28:54,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:28:54,919 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:28:54,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2022-11-20 20:28:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:28:56,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 2182 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:28:56,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:28:56,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 1106 proven. 0 refuted. 0 times theorem prover too weak. 1185 trivial. 0 not checked. [2022-11-20 20:28:56,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:28:56,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [475367315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:28:56,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:28:56,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 7] total 13 [2022-11-20 20:28:56,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893872266] [2022-11-20 20:28:56,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:28:56,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:28:56,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:28:56,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:28:56,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 20:28:56,778 INFO L87 Difference]: Start difference. First operand 4692 states and 5919 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 20:28:57,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:28:57,196 INFO L93 Difference]: Finished difference Result 9382 states and 11835 transitions. [2022-11-20 20:28:57,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:28:57,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 420 [2022-11-20 20:28:57,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:28:57,210 INFO L225 Difference]: With dead ends: 9382 [2022-11-20 20:28:57,210 INFO L226 Difference]: Without dead ends: 2970 [2022-11-20 20:28:57,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1257 GetRequests, 1246 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 20:28:57,224 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 363 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 20:28:57,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1002 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 20:28:57,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2022-11-20 20:28:57,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 2969. [2022-11-20 20:28:57,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2969 states, 2270 states have (on average 1.2259911894273128) internal successors, (2783), 2289 states have internal predecessors, (2783), 449 states have call successors, (449), 234 states have call predecessors, (449), 249 states have return successors, (472), 465 states have call predecessors, (472), 449 states have call successors, (472) [2022-11-20 20:28:57,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2969 states to 2969 states and 3704 transitions. [2022-11-20 20:28:57,549 INFO L78 Accepts]: Start accepts. Automaton has 2969 states and 3704 transitions. Word has length 420 [2022-11-20 20:28:57,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:28:57,549 INFO L495 AbstractCegarLoop]: Abstraction has 2969 states and 3704 transitions. [2022-11-20 20:28:57,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 20:28:57,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2969 states and 3704 transitions. [2022-11-20 20:28:57,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2022-11-20 20:28:57,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:28:57,566 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:28:57,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2022-11-20 20:28:57,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (38)] Ended with exit code 0 [2022-11-20 20:28:57,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:57,979 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-20 20:28:57,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:28:57,980 INFO L85 PathProgramCache]: Analyzing trace with hash 44633599, now seen corresponding path program 1 times [2022-11-20 20:28:57,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:28:57,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742085675] [2022-11-20 20:28:57,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:28:57,982 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 20:28:57,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:28:57,983 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 20:28:58,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (40)] Waiting until timeout for monitored process [2022-11-20 20:28:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:29:00,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 2180 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 20:29:00,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:29:00,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 630 proven. 40 refuted. 0 times theorem prover too weak. 1621 trivial. 0 not checked. [2022-11-20 20:29:00,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 20:29:00,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 36 proven. 580 refuted. 0 times theorem prover too weak. 1675 trivial. 0 not checked. [2022-11-20 20:29:00,493 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:29:00,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1742085675] [2022-11-20 20:29:00,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1742085675] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 20:29:00,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1837260653] [2022-11-20 20:29:00,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:29:00,494 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 20:29:00,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 [2022-11-20 20:29:00,496 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 20:29:00,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2022-11-20 20:29:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:29:02,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 2180 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:29:02,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:29:02,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 1028 proven. 0 refuted. 0 times theorem prover too weak. 1263 trivial. 0 not checked. [2022-11-20 20:29:02,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:29:02,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1837260653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:29:02,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 20:29:02,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 7] total 13 [2022-11-20 20:29:02,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275387322] [2022-11-20 20:29:02,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:29:02,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:29:02,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:29:02,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:29:02,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 20:29:02,521 INFO L87 Difference]: Start difference. First operand 2969 states and 3704 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 20:29:02,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:29:02,594 INFO L93 Difference]: Finished difference Result 3101 states and 3857 transitions. [2022-11-20 20:29:02,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:29:02,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 420 [2022-11-20 20:29:02,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:29:02,596 INFO L225 Difference]: With dead ends: 3101 [2022-11-20 20:29:02,596 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 20:29:02,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1257 GetRequests, 1246 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-20 20:29:02,602 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:29:02,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 20:29:02,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 20:29:02,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 20:29:02,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 20:29:02,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 20:29:02,605 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 420 [2022-11-20 20:29:02,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:29:02,605 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 20:29:02,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 20:29:02,605 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 20:29:02,606 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 20:29:02,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-20 20:29:02,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-20 20:29:02,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-20 20:29:02,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-20 20:29:02,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-20 20:29:02,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-20 20:29:02,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-20 20:29:02,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-20 20:29:02,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-20 20:29:02,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-20 20:29:02,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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 (40)] Forceful destruction successful, exit code 0 [2022-11-20 20:29:02,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2022-11-20 20:29:03,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/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=3,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/cvc4 --incremental --print-success --lang smt [2022-11-20 20:29:03,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 20:29:10,737 INFO L902 garLoopResultBuilder]: At program point tgt_ring_idx_incENTRY(lines 7281 7291) the Hoare annotation is: true [2022-11-20 20:29:10,737 INFO L899 garLoopResultBuilder]: For program point L7284-2(lines 7281 7291) no Hoare annotation was computed. [2022-11-20 20:29:10,737 INFO L899 garLoopResultBuilder]: For program point L7284(lines 7284 7288) no Hoare annotation was computed. [2022-11-20 20:29:10,738 INFO L899 garLoopResultBuilder]: For program point tgt_ring_idx_incEXIT(lines 7281 7291) no Hoare annotation was computed. [2022-11-20 20:29:10,738 INFO L899 garLoopResultBuilder]: For program point __raw_spin_lock_initEXIT(lines 8215 8217) no Hoare annotation was computed. [2022-11-20 20:29:10,738 INFO L902 garLoopResultBuilder]: At program point __raw_spin_lock_initENTRY(lines 8215 8217) the Hoare annotation is: true [2022-11-20 20:29:10,738 INFO L899 garLoopResultBuilder]: For program point __raw_spin_lock_initFINAL(lines 8215 8217) no Hoare annotation was computed. [2022-11-20 20:29:10,738 INFO L902 garLoopResultBuilder]: At program point L7550(lines 7533 7554) the Hoare annotation is: true [2022-11-20 20:29:10,738 INFO L902 garLoopResultBuilder]: At program point uspace_ring_mapENTRY(lines 7528 7555) the Hoare annotation is: true [2022-11-20 20:29:10,738 INFO L902 garLoopResultBuilder]: At program point L7546(lines 7533 7554) the Hoare annotation is: true [2022-11-20 20:29:10,739 INFO L895 garLoopResultBuilder]: At program point L8347(lines 8346 8348) the Hoare annotation is: (let ((.cse0 (not (= (_ bv3 32) ~ldv_state_variable_0~0))) (.cse1 (bvule |uspace_ring_map_~i~2#1| (_ bv15 32)))) (and (or (not (bvsle (_ bv6442450944 33) (bvadd ((_ sign_extend 1) (bvadd ~ref_cnt~0 (_ bv1 32))) (_ bv8589934591 33)))) .cse0 (not (= (_ bv1 32) ~ldv_state_variable_1~0)) .cse1) (or (not (= (_ bv2 32) ~ldv_state_variable_1~0)) (not (bvsle (_ bv6442450944 33) (bvadd (_ bv8589934591 33) ((_ sign_extend 1) ~ref_cnt~0)))) .cse0 .cse1))) [2022-11-20 20:29:10,739 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7545) no Hoare annotation was computed. [2022-11-20 20:29:10,741 INFO L895 garLoopResultBuilder]: At program point L7548(lines 7533 7554) the Hoare annotation is: (let ((.cse0 (not (= (_ bv3 32) ~ldv_state_variable_0~0))) (.cse1 (bvule |uspace_ring_map_~i~2#1| (_ bv15 32)))) (and (or (not (bvsle (_ bv6442450944 33) (bvadd ((_ sign_extend 1) (bvadd ~ref_cnt~0 (_ bv1 32))) (_ bv8589934591 33)))) .cse0 (not (= (_ bv1 32) ~ldv_state_variable_1~0)) .cse1) (or (not (= (_ bv2 32) ~ldv_state_variable_1~0)) (not (bvsle (_ bv6442450944 33) (bvadd (_ bv8589934591 33) ((_ sign_extend 1) ~ref_cnt~0)))) .cse0 .cse1))) [2022-11-20 20:29:10,748 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7545) no Hoare annotation was computed. [2022-11-20 20:29:10,748 INFO L899 garLoopResultBuilder]: For program point L7545-1(line 7545) no Hoare annotation was computed. [2022-11-20 20:29:10,748 INFO L899 garLoopResultBuilder]: For program point L7545(line 7545) no Hoare annotation was computed. [2022-11-20 20:29:10,749 INFO L899 garLoopResultBuilder]: For program point L7540(lines 7540 7543) no Hoare annotation was computed. [2022-11-20 20:29:10,749 INFO L895 garLoopResultBuilder]: At program point L8213(lines 8212 8214) the Hoare annotation is: (let ((.cse0 (not (= (_ bv3 32) ~ldv_state_variable_0~0))) (.cse1 (bvule |uspace_ring_map_~i~2#1| (_ bv15 32)))) (and (or (not (bvsle (_ bv6442450944 33) (bvadd ((_ sign_extend 1) (bvadd ~ref_cnt~0 (_ bv1 32))) (_ bv8589934591 33)))) .cse0 (not (= (_ bv1 32) ~ldv_state_variable_1~0)) .cse1) (or (not (= (_ bv2 32) ~ldv_state_variable_1~0)) (not (bvsle (_ bv6442450944 33) (bvadd (_ bv8589934591 33) ((_ sign_extend 1) ~ref_cnt~0)))) .cse0 .cse1))) [2022-11-20 20:29:10,749 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapEXIT(lines 7528 7555) no Hoare annotation was computed. [2022-11-20 20:29:10,749 INFO L899 garLoopResultBuilder]: For program point uspace_ring_mapFINAL(lines 7528 7555) no Hoare annotation was computed. [2022-11-20 20:29:10,750 INFO L899 garLoopResultBuilder]: For program point tgt_head_eventFINAL(lines 7292 7300) no Hoare annotation was computed. [2022-11-20 20:29:10,750 INFO L899 garLoopResultBuilder]: For program point tgt_head_eventEXIT(lines 7292 7300) no Hoare annotation was computed. [2022-11-20 20:29:10,750 INFO L902 garLoopResultBuilder]: At program point tgt_head_eventENTRY(lines 7292 7300) the Hoare annotation is: true [2022-11-20 20:29:10,750 INFO L899 garLoopResultBuilder]: For program point scsi_unmap_user_pagesFINAL(lines 6597 6603) no Hoare annotation was computed. [2022-11-20 20:29:10,751 INFO L902 garLoopResultBuilder]: At program point scsi_unmap_user_pagesENTRY(lines 6597 6603) the Hoare annotation is: true [2022-11-20 20:29:10,751 INFO L899 garLoopResultBuilder]: For program point scsi_unmap_user_pagesEXIT(lines 6597 6603) no Hoare annotation was computed. [2022-11-20 20:29:10,751 INFO L902 garLoopResultBuilder]: At program point L8259(lines 8258 8260) the Hoare annotation is: true [2022-11-20 20:29:10,751 INFO L902 garLoopResultBuilder]: At program point scsi_host_putENTRY(lines 8335 8337) the Hoare annotation is: true [2022-11-20 20:29:10,751 INFO L899 garLoopResultBuilder]: For program point scsi_host_putFINAL(lines 8335 8337) no Hoare annotation was computed. [2022-11-20 20:29:10,751 INFO L899 garLoopResultBuilder]: For program point scsi_host_putEXIT(lines 8335 8337) no Hoare annotation was computed. [2022-11-20 20:29:10,752 INFO L899 garLoopResultBuilder]: For program point hash_64EXIT(lines 6456 6476) no Hoare annotation was computed. [2022-11-20 20:29:10,752 INFO L902 garLoopResultBuilder]: At program point hash_64ENTRY(lines 6456 6476) the Hoare annotation is: true [2022-11-20 20:29:10,752 INFO L899 garLoopResultBuilder]: For program point hash_64FINAL(lines 6456 6476) no Hoare annotation was computed. [2022-11-20 20:29:10,752 INFO L902 garLoopResultBuilder]: At program point scsi_release_buffersENTRY(lines 8342 8344) the Hoare annotation is: true [2022-11-20 20:29:10,754 INFO L899 garLoopResultBuilder]: For program point scsi_release_buffersFINAL(lines 8342 8344) no Hoare annotation was computed. [2022-11-20 20:29:10,754 INFO L899 garLoopResultBuilder]: For program point scsi_release_buffersEXIT(lines 8342 8344) no Hoare annotation was computed. [2022-11-20 20:29:10,754 INFO L902 garLoopResultBuilder]: At program point L8239(lines 8238 8240) the Hoare annotation is: true [2022-11-20 20:29:10,755 INFO L902 garLoopResultBuilder]: At program point spin_unlock_irqrestoreENTRY(lines 6348 6354) the Hoare annotation is: true [2022-11-20 20:29:10,755 INFO L899 garLoopResultBuilder]: For program point spin_unlock_irqrestoreEXIT(lines 6348 6354) no Hoare annotation was computed. [2022-11-20 20:29:10,755 INFO L899 garLoopResultBuilder]: For program point spin_unlock_irqrestoreFINAL(lines 6348 6354) no Hoare annotation was computed. [2022-11-20 20:29:10,755 INFO L902 garLoopResultBuilder]: At program point ldv_mallocENTRY(lines 6377 6386) the Hoare annotation is: true [2022-11-20 20:29:10,755 INFO L899 garLoopResultBuilder]: For program point L6369(lines 6369 6371) no Hoare annotation was computed. [2022-11-20 20:29:10,755 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 6377 6386) no Hoare annotation was computed. [2022-11-20 20:29:10,756 INFO L899 garLoopResultBuilder]: For program point L6379(lines 6379 6385) no Hoare annotation was computed. [2022-11-20 20:29:10,756 INFO L902 garLoopResultBuilder]: At program point L6375(lines 6373 6376) the Hoare annotation is: true [2022-11-20 20:29:10,756 INFO L899 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 6377 6386) no Hoare annotation was computed. [2022-11-20 20:29:10,756 INFO L899 garLoopResultBuilder]: For program point L6370(line 6370) no Hoare annotation was computed. [2022-11-20 20:29:10,756 INFO L902 garLoopResultBuilder]: At program point ##fun~$Pointer$~TO~C_INTENTRY(line -1) the Hoare annotation is: true [2022-11-20 20:29:10,756 INFO L899 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~C_INTFINAL(line -1) no Hoare annotation was computed. [2022-11-20 20:29:10,757 INFO L899 garLoopResultBuilder]: For program point ##fun~$Pointer$~TO~C_INTEXIT(line -1) no Hoare annotation was computed. [2022-11-20 20:29:10,757 INFO L899 garLoopResultBuilder]: For program point destroy_workqueueFINAL(lines 8261 8263) no Hoare annotation was computed. [2022-11-20 20:29:10,757 INFO L899 garLoopResultBuilder]: For program point destroy_workqueueEXIT(lines 8261 8263) no Hoare annotation was computed. [2022-11-20 20:29:10,757 INFO L902 garLoopResultBuilder]: At program point destroy_workqueueENTRY(lines 8261 8263) the Hoare annotation is: true [2022-11-20 20:29:10,757 INFO L902 garLoopResultBuilder]: At program point L8206(lines 8205 8207) the Hoare annotation is: true [2022-11-20 20:29:10,758 INFO L902 garLoopResultBuilder]: At program point list_addENTRY(lines 6292 6298) the Hoare annotation is: true [2022-11-20 20:29:10,758 INFO L899 garLoopResultBuilder]: For program point list_addFINAL(lines 6292 6298) no Hoare annotation was computed. [2022-11-20 20:29:10,758 INFO L899 garLoopResultBuilder]: For program point list_addEXIT(lines 6292 6298) no Hoare annotation was computed. [2022-11-20 20:29:10,758 INFO L895 garLoopResultBuilder]: At program point L7603(lines 7595 7609) the Hoare annotation is: (bvule |tgt_ring_exit_~i~3#1| (_ bv15 32)) [2022-11-20 20:29:10,758 INFO L902 garLoopResultBuilder]: At program point L7605(lines 7593 7610) the Hoare annotation is: true [2022-11-20 20:29:10,758 INFO L899 garLoopResultBuilder]: For program point tgt_ring_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7600) no Hoare annotation was computed. [2022-11-20 20:29:10,759 INFO L899 garLoopResultBuilder]: For program point L7600-1(line 7600) no Hoare annotation was computed. [2022-11-20 20:29:10,759 INFO L899 garLoopResultBuilder]: For program point tgt_ring_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7600) no Hoare annotation was computed. [2022-11-20 20:29:10,759 INFO L899 garLoopResultBuilder]: For program point tgt_ring_exitEXIT(lines 7593 7610) no Hoare annotation was computed. [2022-11-20 20:29:10,759 INFO L899 garLoopResultBuilder]: For program point L7600(line 7600) no Hoare annotation was computed. [2022-11-20 20:29:10,759 INFO L902 garLoopResultBuilder]: At program point L7601(lines 7595 7609) the Hoare annotation is: true [2022-11-20 20:29:10,759 INFO L902 garLoopResultBuilder]: At program point tgt_ring_exitENTRY(lines 7593 7610) the Hoare annotation is: true [2022-11-20 20:29:10,760 INFO L895 garLoopResultBuilder]: At program point L8265(lines 8264 8266) the Hoare annotation is: (bvule |tgt_ring_exit_~i~3#1| (_ bv15 32)) [2022-11-20 20:29:10,760 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_cmd_destroyFINAL(lines 6604 6619) no Hoare annotation was computed. [2022-11-20 20:29:10,760 INFO L902 garLoopResultBuilder]: At program point L8225(lines 8224 8226) the Hoare annotation is: true [2022-11-20 20:29:10,760 INFO L899 garLoopResultBuilder]: For program point L6615-1(line 6615) no Hoare annotation was computed. [2022-11-20 20:29:10,760 INFO L902 garLoopResultBuilder]: At program point L6615(line 6615) the Hoare annotation is: true [2022-11-20 20:29:10,761 INFO L899 garLoopResultBuilder]: For program point L6613-1(line 6613) no Hoare annotation was computed. [2022-11-20 20:29:10,761 INFO L902 garLoopResultBuilder]: At program point L6613(line 6613) the Hoare annotation is: true [2022-11-20 20:29:10,761 INFO L899 garLoopResultBuilder]: For program point L6575-1(line 6575) no Hoare annotation was computed. [2022-11-20 20:29:10,761 INFO L902 garLoopResultBuilder]: At program point L6575(line 6575) the Hoare annotation is: true [2022-11-20 20:29:10,761 INFO L902 garLoopResultBuilder]: At program point L6577(lines 6561 6579) the Hoare annotation is: true [2022-11-20 20:29:10,761 INFO L899 garLoopResultBuilder]: For program point L6571-1(line 6571) no Hoare annotation was computed. [2022-11-20 20:29:10,762 INFO L902 garLoopResultBuilder]: At program point L6571(line 6571) the Hoare annotation is: true [2022-11-20 20:29:10,762 INFO L899 garLoopResultBuilder]: For program point L6572-1(line 6572) no Hoare annotation was computed. [2022-11-20 20:29:10,762 INFO L902 garLoopResultBuilder]: At program point L6572(line 6572) the Hoare annotation is: true [2022-11-20 20:29:10,762 INFO L899 garLoopResultBuilder]: For program point L6573-1(line 6573) no Hoare annotation was computed. [2022-11-20 20:29:10,762 INFO L902 garLoopResultBuilder]: At program point L6573(line 6573) the Hoare annotation is: true [2022-11-20 20:29:10,762 INFO L902 garLoopResultBuilder]: At program point L8200(lines 8199 8201) the Hoare annotation is: true [2022-11-20 20:29:10,763 INFO L902 garLoopResultBuilder]: At program point scsi_tgt_cmd_destroyENTRY(lines 6604 6619) the Hoare annotation is: true [2022-11-20 20:29:10,763 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_cmd_destroyEXIT(lines 6604 6619) no Hoare annotation was computed. [2022-11-20 20:29:10,763 INFO L899 garLoopResultBuilder]: For program point L6427-1(line 6427) no Hoare annotation was computed. [2022-11-20 20:29:10,763 INFO L902 garLoopResultBuilder]: At program point L6427(line 6427) the Hoare annotation is: true [2022-11-20 20:29:10,763 INFO L899 garLoopResultBuilder]: For program point L6807(line 6807) no Hoare annotation was computed. [2022-11-20 20:29:10,763 INFO L899 garLoopResultBuilder]: For program point L6940(lines 6940 6944) no Hoare annotation was computed. [2022-11-20 20:29:10,764 INFO L899 garLoopResultBuilder]: For program point L6973-1(line 6973) no Hoare annotation was computed. [2022-11-20 20:29:10,764 INFO L902 garLoopResultBuilder]: At program point L6973(line 6973) the Hoare annotation is: true [2022-11-20 20:29:10,764 INFO L899 garLoopResultBuilder]: For program point L6858(lines 6858 6862) no Hoare annotation was computed. [2022-11-20 20:29:10,764 INFO L899 garLoopResultBuilder]: For program point L7469(line 7469) no Hoare annotation was computed. [2022-11-20 20:29:10,764 INFO L902 garLoopResultBuilder]: At program point L6974(line 6974) the Hoare annotation is: true [2022-11-20 20:29:10,764 INFO L899 garLoopResultBuilder]: For program point L7007-1(line 7007) no Hoare annotation was computed. [2022-11-20 20:29:10,765 INFO L902 garLoopResultBuilder]: At program point L7007(line 7007) the Hoare annotation is: true [2022-11-20 20:29:10,765 INFO L899 garLoopResultBuilder]: For program point L6974-1(line 6974) no Hoare annotation was computed. [2022-11-20 20:29:10,765 INFO L902 garLoopResultBuilder]: At program point L6430(line 6430) the Hoare annotation is: true [2022-11-20 20:29:10,765 INFO L902 garLoopResultBuilder]: At program point L6975-1(line 6975) the Hoare annotation is: true [2022-11-20 20:29:10,765 INFO L902 garLoopResultBuilder]: At program point L6975(line 6975) the Hoare annotation is: true [2022-11-20 20:29:10,766 INFO L899 garLoopResultBuilder]: For program point L7008(lines 7008 7012) no Hoare annotation was computed. [2022-11-20 20:29:10,767 INFO L902 garLoopResultBuilder]: At program point L6810(lines 6797 6812) the Hoare annotation is: true [2022-11-20 20:29:10,767 INFO L899 garLoopResultBuilder]: For program point L6876-1(line 6876) no Hoare annotation was computed. [2022-11-20 20:29:10,767 INFO L902 garLoopResultBuilder]: At program point L6876(line 6876) the Hoare annotation is: true [2022-11-20 20:29:10,767 INFO L902 garLoopResultBuilder]: At program point L6909(lines 6890 6918) the Hoare annotation is: true [2022-11-20 20:29:10,767 INFO L899 garLoopResultBuilder]: For program point L6430-1(line 6430) no Hoare annotation was computed. [2022-11-20 20:29:10,767 INFO L902 garLoopResultBuilder]: At program point tgt_writeENTRY(lines 7481 7500) the Hoare annotation is: true [2022-11-20 20:29:10,768 INFO L899 garLoopResultBuilder]: For program point L6893-1(line 6893) no Hoare annotation was computed. [2022-11-20 20:29:10,768 INFO L902 garLoopResultBuilder]: At program point L6893(line 6893) the Hoare annotation is: true [2022-11-20 20:29:10,768 INFO L902 garLoopResultBuilder]: At program point L8297(lines 8296 8298) the Hoare annotation is: true [2022-11-20 20:29:10,768 INFO L899 garLoopResultBuilder]: For program point L7488-1(line 7488) no Hoare annotation was computed. [2022-11-20 20:29:10,768 INFO L899 garLoopResultBuilder]: For program point L6431(lines 6431 6435) no Hoare annotation was computed. [2022-11-20 20:29:10,768 INFO L902 garLoopResultBuilder]: At program point L7488(line 7488) the Hoare annotation is: true [2022-11-20 20:29:10,769 INFO L902 garLoopResultBuilder]: At program point L6877(lines 6866 6879) the Hoare annotation is: true [2022-11-20 20:29:10,769 INFO L902 garLoopResultBuilder]: At program point L6431-2(lines 6431 6435) the Hoare annotation is: true [2022-11-20 20:29:10,769 INFO L899 garLoopResultBuilder]: For program point L7059(lines 7059 7063) no Hoare annotation was computed. [2022-11-20 20:29:10,769 INFO L899 garLoopResultBuilder]: For program point L6960-2(lines 6932 6986) no Hoare annotation was computed. [2022-11-20 20:29:10,769 INFO L899 garLoopResultBuilder]: For program point L6960(lines 6960 6963) no Hoare annotation was computed. [2022-11-20 20:29:10,769 INFO L902 garLoopResultBuilder]: At program point L6911(lines 6890 6918) the Hoare annotation is: true [2022-11-20 20:29:10,770 INFO L899 garLoopResultBuilder]: For program point L7489(lines 7489 7492) no Hoare annotation was computed. [2022-11-20 20:29:10,770 INFO L899 garLoopResultBuilder]: For program point L6895-1(line 6895) no Hoare annotation was computed. [2022-11-20 20:29:10,770 INFO L902 garLoopResultBuilder]: At program point L6895(line 6895) the Hoare annotation is: true [2022-11-20 20:29:10,770 INFO L899 garLoopResultBuilder]: For program point L7473(line 7473) no Hoare annotation was computed. [2022-11-20 20:29:10,770 INFO L902 garLoopResultBuilder]: At program point L7490(lines 7485 7499) the Hoare annotation is: true [2022-11-20 20:29:10,770 INFO L899 garLoopResultBuilder]: For program point L6830(lines 6830 6834) no Hoare annotation was computed. [2022-11-20 20:29:10,771 INFO L899 garLoopResultBuilder]: For program point L6896-1(line 6896) no Hoare annotation was computed. [2022-11-20 20:29:10,771 INFO L902 garLoopResultBuilder]: At program point L6863(lines 6842 6865) the Hoare annotation is: true [2022-11-20 20:29:10,771 INFO L902 garLoopResultBuilder]: At program point L6896(line 6896) the Hoare annotation is: true [2022-11-20 20:29:10,771 INFO L899 garLoopResultBuilder]: For program point L6946(lines 6946 6951) no Hoare annotation was computed. [2022-11-20 20:29:10,771 INFO L899 garLoopResultBuilder]: For program point L7458(lines 7458 7476) no Hoare annotation was computed. [2022-11-20 20:29:10,771 INFO L902 garLoopResultBuilder]: At program point L6913(lines 6890 6918) the Hoare annotation is: true [2022-11-20 20:29:10,772 INFO L902 garLoopResultBuilder]: At program point L6451(lines 6448 6453) the Hoare annotation is: true [2022-11-20 20:29:10,772 INFO L902 garLoopResultBuilder]: At program point L6831-1(lines 6818 6840) the Hoare annotation is: true [2022-11-20 20:29:10,772 INFO L902 garLoopResultBuilder]: At program point L6831(line 6831) the Hoare annotation is: true [2022-11-20 20:29:10,772 INFO L899 garLoopResultBuilder]: For program point L7459(line 7459) no Hoare annotation was computed. [2022-11-20 20:29:10,772 INFO L899 garLoopResultBuilder]: For program point L7013(lines 7013 7017) no Hoare annotation was computed. [2022-11-20 20:29:10,773 INFO L899 garLoopResultBuilder]: For program point L6964-1(lines 6964 6981) no Hoare annotation was computed. [2022-11-20 20:29:10,773 INFO L899 garLoopResultBuilder]: For program point L7493-1(line 7493) no Hoare annotation was computed. [2022-11-20 20:29:10,773 INFO L899 garLoopResultBuilder]: For program point L6436(line 6436) no Hoare annotation was computed. [2022-11-20 20:29:10,773 INFO L902 garLoopResultBuilder]: At program point L7493(line 7493) the Hoare annotation is: true [2022-11-20 20:29:10,773 INFO L902 garLoopResultBuilder]: At program point L7477(lines 7456 7479) the Hoare annotation is: true [2022-11-20 20:29:10,773 INFO L899 garLoopResultBuilder]: For program point L6916(line 6916) no Hoare annotation was computed. [2022-11-20 20:29:10,774 INFO L902 garLoopResultBuilder]: At program point L7478(lines 7454 7480) the Hoare annotation is: true [2022-11-20 20:29:10,774 INFO L902 garLoopResultBuilder]: At program point L7065(lines 7051 7068) the Hoare annotation is: true [2022-11-20 20:29:10,774 INFO L899 garLoopResultBuilder]: For program point L6421-1(line 6421) no Hoare annotation was computed. [2022-11-20 20:29:10,774 INFO L902 garLoopResultBuilder]: At program point L6421(line 6421) the Hoare annotation is: true [2022-11-20 20:29:10,774 INFO L902 garLoopResultBuilder]: At program point L6983(lines 6932 6986) the Hoare annotation is: true [2022-11-20 20:29:10,774 INFO L902 garLoopResultBuilder]: At program point L6917(lines 6880 6919) the Hoare annotation is: true [2022-11-20 20:29:10,775 INFO L902 garLoopResultBuilder]: At program point L8255(lines 8254 8256) the Hoare annotation is: true [2022-11-20 20:29:10,775 INFO L899 garLoopResultBuilder]: For program point L7066(line 7066) no Hoare annotation was computed. [2022-11-20 20:29:10,775 INFO L902 garLoopResultBuilder]: At program point L6934(line 6934) the Hoare annotation is: true [2022-11-20 20:29:10,775 INFO L899 garLoopResultBuilder]: For program point L6422(lines 6422 6438) no Hoare annotation was computed. [2022-11-20 20:29:10,775 INFO L899 garLoopResultBuilder]: For program point L6967(lines 6967 6979) no Hoare annotation was computed. [2022-11-20 20:29:10,775 INFO L902 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: true [2022-11-20 20:29:10,775 INFO L899 garLoopResultBuilder]: For program point L6934-1(line 6934) no Hoare annotation was computed. [2022-11-20 20:29:10,776 INFO L899 garLoopResultBuilder]: For program point L6901(lines 6901 6906) no Hoare annotation was computed. [2022-11-20 20:29:10,776 INFO L899 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2022-11-20 20:29:10,776 INFO L902 garLoopResultBuilder]: At program point L6439(lines 6410 6441) the Hoare annotation is: true [2022-11-20 20:29:10,776 INFO L899 garLoopResultBuilder]: For program point L6984(line 6984) no Hoare annotation was computed. [2022-11-20 20:29:10,776 INFO L902 garLoopResultBuilder]: At program point L7496(lines 7485 7499) the Hoare annotation is: true [2022-11-20 20:29:10,776 INFO L899 garLoopResultBuilder]: For program point tgt_writeFINAL(lines 7481 7500) no Hoare annotation was computed. [2022-11-20 20:29:10,776 INFO L899 garLoopResultBuilder]: For program point L6852-2(lines 6852 6856) no Hoare annotation was computed. [2022-11-20 20:29:10,776 INFO L899 garLoopResultBuilder]: For program point L6852(lines 6852 6856) no Hoare annotation was computed. [2022-11-20 20:29:10,776 INFO L902 garLoopResultBuilder]: At program point L7067(lines 7048 7069) the Hoare annotation is: true [2022-11-20 20:29:10,776 INFO L899 garLoopResultBuilder]: For program point L6423-1(line 6423) no Hoare annotation was computed. [2022-11-20 20:29:10,777 INFO L899 garLoopResultBuilder]: For program point L6935(lines 6935 6939) no Hoare annotation was computed. [2022-11-20 20:29:10,777 INFO L902 garLoopResultBuilder]: At program point L6423(line 6423) the Hoare annotation is: true [2022-11-20 20:29:10,777 INFO L899 garLoopResultBuilder]: For program point tgt_writeEXIT(lines 7481 7500) no Hoare annotation was computed. [2022-11-20 20:29:10,777 INFO L902 garLoopResultBuilder]: At program point L6985(lines 6920 6987) the Hoare annotation is: true [2022-11-20 20:29:10,777 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 20:29:10,777 INFO L902 garLoopResultBuilder]: At program point L-1-1(line -1) the Hoare annotation is: true [2022-11-20 20:29:10,777 INFO L899 garLoopResultBuilder]: For program point L-1-2(line -1) no Hoare annotation was computed. [2022-11-20 20:29:10,777 INFO L902 garLoopResultBuilder]: At program point L-1-4(line -1) the Hoare annotation is: true [2022-11-20 20:29:10,777 INFO L899 garLoopResultBuilder]: For program point L-1-5(line -1) no Hoare annotation was computed. [2022-11-20 20:29:10,777 INFO L902 garLoopResultBuilder]: At program point L6870(line 6870) the Hoare annotation is: true [2022-11-20 20:29:10,777 INFO L899 garLoopResultBuilder]: For program point L-1-6(line -1) no Hoare annotation was computed. [2022-11-20 20:29:10,777 INFO L902 garLoopResultBuilder]: At program point L6903(line 6903) the Hoare annotation is: true [2022-11-20 20:29:10,778 INFO L902 garLoopResultBuilder]: At program point L-1-7(line -1) the Hoare annotation is: true [2022-11-20 20:29:10,778 INFO L899 garLoopResultBuilder]: For program point L-1-8(line -1) no Hoare annotation was computed. [2022-11-20 20:29:10,778 INFO L899 garLoopResultBuilder]: For program point L-1-9(line -1) no Hoare annotation was computed. [2022-11-20 20:29:10,778 INFO L902 garLoopResultBuilder]: At program point L8340(lines 8339 8341) the Hoare annotation is: true [2022-11-20 20:29:10,778 INFO L899 garLoopResultBuilder]: For program point L6870-1(line 6870) no Hoare annotation was computed. [2022-11-20 20:29:10,778 INFO L902 garLoopResultBuilder]: At program point L7019(lines 7005 7022) the Hoare annotation is: true [2022-11-20 20:29:10,778 INFO L899 garLoopResultBuilder]: For program point L6953(lines 6953 6957) no Hoare annotation was computed. [2022-11-20 20:29:10,778 INFO L899 garLoopResultBuilder]: For program point L7465(line 7465) no Hoare annotation was computed. [2022-11-20 20:29:10,778 INFO L899 garLoopResultBuilder]: For program point L6838(line 6838) no Hoare annotation was computed. [2022-11-20 20:29:10,778 INFO L899 garLoopResultBuilder]: For program point L6871(lines 6871 6874) no Hoare annotation was computed. [2022-11-20 20:29:10,778 INFO L899 garLoopResultBuilder]: For program point L6425-1(line 6425) no Hoare annotation was computed. [2022-11-20 20:29:10,779 INFO L902 garLoopResultBuilder]: At program point L6425(line 6425) the Hoare annotation is: true [2022-11-20 20:29:10,779 INFO L899 garLoopResultBuilder]: For program point L6871-2(lines 6871 6874) no Hoare annotation was computed. [2022-11-20 20:29:10,779 INFO L899 garLoopResultBuilder]: For program point L6805(lines 6805 6809) no Hoare annotation was computed. [2022-11-20 20:29:10,779 INFO L899 garLoopResultBuilder]: For program point L7020(line 7020) no Hoare annotation was computed. [2022-11-20 20:29:10,779 INFO L899 garLoopResultBuilder]: For program point L7053-1(line 7053) no Hoare annotation was computed. [2022-11-20 20:29:10,779 INFO L902 garLoopResultBuilder]: At program point L7053(line 7053) the Hoare annotation is: true [2022-11-20 20:29:10,779 INFO L899 garLoopResultBuilder]: For program point L6822(lines 6822 6827) no Hoare annotation was computed. [2022-11-20 20:29:10,779 INFO L899 garLoopResultBuilder]: For program point L6426(lines 6426 6437) no Hoare annotation was computed. [2022-11-20 20:29:10,779 INFO L899 garLoopResultBuilder]: For program point L6971-1(line 6971) no Hoare annotation was computed. [2022-11-20 20:29:10,779 INFO L902 garLoopResultBuilder]: At program point L6971(line 6971) the Hoare annotation is: true [2022-11-20 20:29:10,779 INFO L899 garLoopResultBuilder]: For program point L6806(line 6806) no Hoare annotation was computed. [2022-11-20 20:29:10,779 INFO L902 garLoopResultBuilder]: At program point L6839(lines 6813 6841) the Hoare annotation is: true [2022-11-20 20:29:10,780 INFO L899 garLoopResultBuilder]: For program point L6426-2(lines 6422 6438) no Hoare annotation was computed. [2022-11-20 20:29:10,780 INFO L899 garLoopResultBuilder]: For program point L6806-2(line 6806) no Hoare annotation was computed. [2022-11-20 20:29:10,780 INFO L899 garLoopResultBuilder]: For program point L7054(lines 7054 7058) no Hoare annotation was computed. [2022-11-20 20:29:10,780 INFO L902 garLoopResultBuilder]: At program point L7021(lines 7002 7023) the Hoare annotation is: true [2022-11-20 20:29:10,780 INFO L899 garLoopResultBuilder]: For program point L7616-1(lines 7616 7617) no Hoare annotation was computed. [2022-11-20 20:29:10,780 INFO L902 garLoopResultBuilder]: At program point L7616(lines 7616 7617) the Hoare annotation is: true [2022-11-20 20:29:10,780 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initFINAL(lines 7611 7637) no Hoare annotation was computed. [2022-11-20 20:29:10,780 INFO L899 garLoopResultBuilder]: For program point L7627-1(line 7627) no Hoare annotation was computed. [2022-11-20 20:29:10,780 INFO L899 garLoopResultBuilder]: For program point L7627(line 7627) no Hoare annotation was computed. [2022-11-20 20:29:10,781 INFO L902 garLoopResultBuilder]: At program point tgt_ring_initENTRY(lines 7611 7637) the Hoare annotation is: true [2022-11-20 20:29:10,781 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7627) no Hoare annotation was computed. [2022-11-20 20:29:10,781 INFO L899 garLoopResultBuilder]: For program point L7615-1(line 7615) no Hoare annotation was computed. [2022-11-20 20:29:10,781 INFO L902 garLoopResultBuilder]: At program point L7615(line 7615) the Hoare annotation is: true [2022-11-20 20:29:10,781 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initEXIT(lines 7611 7637) no Hoare annotation was computed. [2022-11-20 20:29:10,781 INFO L895 garLoopResultBuilder]: At program point L7630(lines 7614 7636) the Hoare annotation is: (or (bvule |tgt_ring_init_~i~4#1| (_ bv15 32)) (not (= (_ bv1 32) ~ldv_state_variable_0~0)) (not (= (_ bv0 32) ~ldv_state_variable_1~0)) (not (= ~ref_cnt~0 (_ bv0 32)))) [2022-11-20 20:29:10,781 INFO L895 garLoopResultBuilder]: At program point L8272(lines 8271 8273) the Hoare annotation is: (or (bvule |tgt_ring_init_~i~4#1| (_ bv15 32)) (not (= (_ bv1 32) ~ldv_state_variable_0~0)) (not (= (_ bv0 32) ~ldv_state_variable_1~0)) (not (= ~ref_cnt~0 (_ bv0 32)))) [2022-11-20 20:29:10,781 INFO L902 garLoopResultBuilder]: At program point L7632(lines 7614 7636) the Hoare annotation is: true [2022-11-20 20:29:10,781 INFO L902 garLoopResultBuilder]: At program point L7628(lines 7614 7636) the Hoare annotation is: true [2022-11-20 20:29:10,782 INFO L899 garLoopResultBuilder]: For program point L7622(lines 7622 7626) no Hoare annotation was computed. [2022-11-20 20:29:10,782 INFO L899 garLoopResultBuilder]: For program point tgt_ring_initErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7627) no Hoare annotation was computed. [2022-11-20 20:29:10,782 INFO L899 garLoopResultBuilder]: For program point ldv_errorFINAL(lines 7842 7847) no Hoare annotation was computed. [2022-11-20 20:29:10,782 INFO L902 garLoopResultBuilder]: At program point ldv_errorENTRY(lines 7842 7847) the Hoare annotation is: true [2022-11-20 20:29:10,782 INFO L899 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 7842 7847) no Hoare annotation was computed. [2022-11-20 20:29:10,782 INFO L899 garLoopResultBuilder]: For program point list_delFINAL(lines 8290 8292) no Hoare annotation was computed. [2022-11-20 20:29:10,782 INFO L899 garLoopResultBuilder]: For program point list_delEXIT(lines 8290 8292) no Hoare annotation was computed. [2022-11-20 20:29:10,782 INFO L902 garLoopResultBuilder]: At program point list_delENTRY(lines 8290 8292) the Hoare annotation is: true [2022-11-20 20:29:10,782 INFO L902 garLoopResultBuilder]: At program point kmem_cache_freeENTRY(lines 8283 8285) the Hoare annotation is: true [2022-11-20 20:29:10,783 INFO L899 garLoopResultBuilder]: For program point kmem_cache_freeEXIT(lines 8283 8285) no Hoare annotation was computed. [2022-11-20 20:29:10,783 INFO L899 garLoopResultBuilder]: For program point kmem_cache_freeFINAL(lines 8283 8285) no Hoare annotation was computed. [2022-11-20 20:29:10,783 INFO L899 garLoopResultBuilder]: For program point L7519(line 7519) no Hoare annotation was computed. [2022-11-20 20:29:10,783 INFO L899 garLoopResultBuilder]: For program point L7261-2(lines 7261 7266) no Hoare annotation was computed. [2022-11-20 20:29:10,783 INFO L899 garLoopResultBuilder]: For program point L7261(lines 7261 7263) no Hoare annotation was computed. [2022-11-20 20:29:10,783 INFO L899 garLoopResultBuilder]: For program point L7513-1(line 7513) no Hoare annotation was computed. [2022-11-20 20:29:10,783 INFO L902 garLoopResultBuilder]: At program point L7261-4(lines 7257 7269) the Hoare annotation is: true [2022-11-20 20:29:10,783 INFO L902 garLoopResultBuilder]: At program point L7513(line 7513) the Hoare annotation is: true [2022-11-20 20:29:10,784 INFO L902 garLoopResultBuilder]: At program point tgt_pollENTRY(lines 7501 7527) the Hoare annotation is: true [2022-11-20 20:29:10,784 INFO L899 garLoopResultBuilder]: For program point L7524(line 7524) no Hoare annotation was computed. [2022-11-20 20:29:10,784 INFO L902 garLoopResultBuilder]: At program point L7520-2(lines 7520 7523) the Hoare annotation is: true [2022-11-20 20:29:10,784 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 20:29:10,784 INFO L899 garLoopResultBuilder]: For program point L7520(lines 7520 7523) no Hoare annotation was computed. [2022-11-20 20:29:10,784 INFO L899 garLoopResultBuilder]: For program point L7514(lines 7514 7518) no Hoare annotation was computed. [2022-11-20 20:29:10,784 INFO L899 garLoopResultBuilder]: For program point L7512-1(line 7512) no Hoare annotation was computed. [2022-11-20 20:29:10,784 INFO L902 garLoopResultBuilder]: At program point L7512(line 7512) the Hoare annotation is: true [2022-11-20 20:29:10,784 INFO L902 garLoopResultBuilder]: At program point L7514-2(lines 7514 7518) the Hoare annotation is: true [2022-11-20 20:29:10,784 INFO L899 garLoopResultBuilder]: For program point tgt_pollEXIT(lines 7501 7527) no Hoare annotation was computed. [2022-11-20 20:29:10,784 INFO L899 garLoopResultBuilder]: For program point tgt_pollFINAL(lines 7501 7527) no Hoare annotation was computed. [2022-11-20 20:29:10,785 INFO L899 garLoopResultBuilder]: For program point _raw_spin_lock_irqsaveFINAL(lines 8235 8237) no Hoare annotation was computed. [2022-11-20 20:29:10,785 INFO L899 garLoopResultBuilder]: For program point _raw_spin_lock_irqsaveEXIT(lines 8235 8237) no Hoare annotation was computed. [2022-11-20 20:29:10,785 INFO L902 garLoopResultBuilder]: At program point _raw_spin_lock_irqsaveENTRY(lines 8235 8237) the Hoare annotation is: true [2022-11-20 20:29:10,785 INFO L899 garLoopResultBuilder]: For program point ldv__builtin_expectFINAL(lines 7849 7854) no Hoare annotation was computed. [2022-11-20 20:29:10,785 INFO L902 garLoopResultBuilder]: At program point ldv__builtin_expectENTRY(lines 7849 7854) the Hoare annotation is: true [2022-11-20 20:29:10,785 INFO L899 garLoopResultBuilder]: For program point ldv__builtin_expectEXIT(lines 7849 7854) no Hoare annotation was computed. [2022-11-20 20:29:10,785 INFO L902 garLoopResultBuilder]: At program point tgt_openENTRY(lines 7580 7587) the Hoare annotation is: true [2022-11-20 20:29:10,785 INFO L899 garLoopResultBuilder]: For program point tgt_openFINAL(lines 7580 7587) no Hoare annotation was computed. [2022-11-20 20:29:10,786 INFO L899 garLoopResultBuilder]: For program point tgt_openEXIT(lines 7580 7587) no Hoare annotation was computed. [2022-11-20 20:29:10,786 INFO L902 garLoopResultBuilder]: At program point scsi_host_lookupENTRY(lines 8332 8334) the Hoare annotation is: true [2022-11-20 20:29:10,786 INFO L899 garLoopResultBuilder]: For program point scsi_host_lookupFINAL(lines 8332 8334) no Hoare annotation was computed. [2022-11-20 20:29:10,786 INFO L899 garLoopResultBuilder]: For program point L8333-1(line 8333) no Hoare annotation was computed. [2022-11-20 20:29:10,786 INFO L902 garLoopResultBuilder]: At program point L8333(line 8333) the Hoare annotation is: true [2022-11-20 20:29:10,786 INFO L899 garLoopResultBuilder]: For program point scsi_host_lookupEXIT(lines 8332 8334) no Hoare annotation was computed. [2022-11-20 20:29:10,787 INFO L902 garLoopResultBuilder]: At program point tgt_mmapENTRY(lines 7556 7579) the Hoare annotation is: true [2022-11-20 20:29:10,787 INFO L899 garLoopResultBuilder]: For program point L7576-1(line 7576) no Hoare annotation was computed. [2022-11-20 20:29:10,787 INFO L902 garLoopResultBuilder]: At program point L7576(line 7576) the Hoare annotation is: true [2022-11-20 20:29:10,787 INFO L899 garLoopResultBuilder]: For program point L7571-1(line 7571) no Hoare annotation was computed. [2022-11-20 20:29:10,787 INFO L899 garLoopResultBuilder]: For program point tgt_mmapEXIT(lines 7556 7579) no Hoare annotation was computed. [2022-11-20 20:29:10,787 INFO L902 garLoopResultBuilder]: At program point L7571(line 7571) the Hoare annotation is: true [2022-11-20 20:29:10,788 INFO L899 garLoopResultBuilder]: For program point L7572(lines 7572 7575) no Hoare annotation was computed. [2022-11-20 20:29:10,788 INFO L899 garLoopResultBuilder]: For program point tgt_mmapFINAL(lines 7556 7579) no Hoare annotation was computed. [2022-11-20 20:29:10,788 INFO L899 garLoopResultBuilder]: For program point L7564(lines 7564 7569) no Hoare annotation was computed. [2022-11-20 20:29:10,788 INFO L899 garLoopResultBuilder]: For program point L7560(lines 7560 7563) no Hoare annotation was computed. [2022-11-20 20:29:10,788 INFO L899 garLoopResultBuilder]: For program point kmem_cache_destroyEXIT(lines 8280 8282) no Hoare annotation was computed. [2022-11-20 20:29:10,788 INFO L902 garLoopResultBuilder]: At program point kmem_cache_destroyENTRY(lines 8280 8282) the Hoare annotation is: true [2022-11-20 20:29:10,788 INFO L899 garLoopResultBuilder]: For program point kmem_cache_destroyFINAL(lines 8280 8282) no Hoare annotation was computed. [2022-11-20 20:29:10,789 INFO L899 garLoopResultBuilder]: For program point _copy_from_userEXIT(lines 8231 8233) no Hoare annotation was computed. [2022-11-20 20:29:10,789 INFO L902 garLoopResultBuilder]: At program point _copy_from_userENTRY(lines 8231 8233) the Hoare annotation is: true [2022-11-20 20:29:10,789 INFO L899 garLoopResultBuilder]: For program point _copy_from_userFINAL(lines 8231 8233) no Hoare annotation was computed. [2022-11-20 20:29:10,789 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7750) no Hoare annotation was computed. [2022-11-20 20:29:10,789 INFO L899 garLoopResultBuilder]: For program point L7137(lines 7137 7142) no Hoare annotation was computed. [2022-11-20 20:29:10,790 INFO L899 garLoopResultBuilder]: For program point L7699-1(line 7699) no Hoare annotation was computed. [2022-11-20 20:29:10,790 INFO L895 garLoopResultBuilder]: At program point L7699(line 7699) the Hoare annotation is: (and (= (_ bv3 32) ~ldv_state_variable_0~0) (bvsle (_ bv6442450944 33) (bvadd (_ bv8589934591 33) ((_ sign_extend 1) ~ref_cnt~0))) (= (_ bv2 32) ~ldv_state_variable_1~0)) [2022-11-20 20:29:10,790 INFO L895 garLoopResultBuilder]: At program point L7650(line 7650) the Hoare annotation is: (and (= ~ref_cnt~0 (_ bv0 32)) (= (_ bv0 32) ~ldv_state_variable_1~0) (= (_ bv1 32) ~ldv_state_variable_0~0)) [2022-11-20 20:29:10,790 INFO L899 garLoopResultBuilder]: For program point L7716(line 7716) no Hoare annotation was computed. [2022-11-20 20:29:10,790 INFO L899 garLoopResultBuilder]: For program point L7105-1(line 7105) no Hoare annotation was computed. [2022-11-20 20:29:10,790 INFO L902 garLoopResultBuilder]: At program point L7105(line 7105) the Hoare annotation is: true [2022-11-20 20:29:10,791 INFO L899 garLoopResultBuilder]: For program point L7650-1(line 7650) no Hoare annotation was computed. [2022-11-20 20:29:10,791 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 20:29:10,791 INFO L895 garLoopResultBuilder]: At program point L8278(line 8278) the Hoare annotation is: (and (= ~ref_cnt~0 (_ bv0 32)) (= (_ bv0 32) ~ldv_state_variable_1~0) (= (_ bv1 32) ~ldv_state_variable_0~0)) [2022-11-20 20:29:10,791 INFO L895 garLoopResultBuilder]: At program point L7667(lines 7649 7671) the Hoare annotation is: (let ((.cse0 (= ~ref_cnt~0 (_ bv0 32))) (.cse1 (= (_ bv1 32) ~ldv_state_variable_0~0))) (or (and .cse0 .cse1 (= (_ bv1 32) ~ldv_state_variable_1~0)) (and .cse0 (= (_ bv0 32) ~ldv_state_variable_1~0) .cse1))) [2022-11-20 20:29:10,791 INFO L895 garLoopResultBuilder]: At program point L8278-2(lines 8277 8279) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~ldv_state_variable_0~0))) (or (and (= |ULTIMATE.start_kmem_cache_create_#res#1.offset| (_ bv0 64)) (= (_ bv0 64) |ULTIMATE.start_kmem_cache_create_#res#1.base|) .cse0) (and (= ~ref_cnt~0 (_ bv0 32)) (= (_ bv0 32) ~ldv_state_variable_1~0) .cse0))) [2022-11-20 20:29:10,791 INFO L899 garLoopResultBuilder]: For program point L8278-1(line 8278) no Hoare annotation was computed. [2022-11-20 20:29:10,792 INFO L899 garLoopResultBuilder]: For program point L7750(line 7750) no Hoare annotation was computed. [2022-11-20 20:29:10,792 INFO L899 garLoopResultBuilder]: For program point L7717-2(lines 7691 7756) no Hoare annotation was computed. [2022-11-20 20:29:10,792 INFO L899 garLoopResultBuilder]: For program point L7651(lines 7651 7654) no Hoare annotation was computed. [2022-11-20 20:29:10,792 INFO L899 garLoopResultBuilder]: For program point L7717(lines 7717 7721) no Hoare annotation was computed. [2022-11-20 20:29:10,792 INFO L899 garLoopResultBuilder]: For program point L7750-1(line 7750) no Hoare annotation was computed. [2022-11-20 20:29:10,792 INFO L899 garLoopResultBuilder]: For program point L7090(lines 7090 7093) no Hoare annotation was computed. [2022-11-20 20:29:10,793 INFO L895 garLoopResultBuilder]: At program point L7718(line 7718) the Hoare annotation is: (and (bvsle (_ bv6442450944 33) (bvadd ((_ sign_extend 1) (bvadd ~ref_cnt~0 (_ bv1 32))) (_ bv8589934591 33))) (= (_ bv3 32) ~ldv_state_variable_0~0) (= (_ bv1 32) ~ldv_state_variable_1~0)) [2022-11-20 20:29:10,793 INFO L902 garLoopResultBuilder]: At program point L7107-1(lines 7102 7110) the Hoare annotation is: true [2022-11-20 20:29:10,793 INFO L902 garLoopResultBuilder]: At program point L7107(line 7107) the Hoare annotation is: true [2022-11-20 20:29:10,793 INFO L899 garLoopResultBuilder]: For program point L7718-1(line 7718) no Hoare annotation was computed. [2022-11-20 20:29:10,793 INFO L902 garLoopResultBuilder]: At program point L7173(lines 7115 7175) the Hoare annotation is: true [2022-11-20 20:29:10,793 INFO L899 garLoopResultBuilder]: For program point L7735(line 7735) no Hoare annotation was computed. [2022-11-20 20:29:10,794 INFO L895 garLoopResultBuilder]: At program point L7091(lines 7075 7100) the Hoare annotation is: (let ((.cse0 (= ~ref_cnt~0 (_ bv0 32))) (.cse1 (= (_ bv1 32) ~ldv_state_variable_0~0))) (or (and .cse0 .cse1 (= (_ bv1 32) ~ldv_state_variable_1~0)) (and .cse0 (= (_ bv0 32) ~ldv_state_variable_1~0) .cse1))) [2022-11-20 20:29:10,794 INFO L899 garLoopResultBuilder]: For program point L7669(line 7669) no Hoare annotation was computed. [2022-11-20 20:29:10,794 INFO L899 garLoopResultBuilder]: For program point L8181(lines 8181 8184) no Hoare annotation was computed. [2022-11-20 20:29:10,794 INFO L895 garLoopResultBuilder]: At program point L7670(lines 7647 7672) the Hoare annotation is: (let ((.cse0 (= ~ref_cnt~0 (_ bv0 32))) (.cse1 (= (_ bv1 32) ~ldv_state_variable_0~0))) (or (and .cse0 .cse1 (= (_ bv1 32) ~ldv_state_variable_1~0)) (and .cse0 (= (_ bv0 32) ~ldv_state_variable_1~0) .cse1))) [2022-11-20 20:29:10,794 INFO L899 garLoopResultBuilder]: For program point L7736(lines 7736 7744) no Hoare annotation was computed. [2022-11-20 20:29:10,794 INFO L899 garLoopResultBuilder]: For program point L7125(lines 7125 7168) no Hoare annotation was computed. [2022-11-20 20:29:10,795 INFO L899 garLoopResultBuilder]: For program point L7126(line 7126) no Hoare annotation was computed. [2022-11-20 20:29:10,795 INFO L899 garLoopResultBuilder]: For program point L8183-1(lines 8180 8194) no Hoare annotation was computed. [2022-11-20 20:29:10,795 INFO L899 garLoopResultBuilder]: For program point L7159(line 7159) no Hoare annotation was computed. [2022-11-20 20:29:10,795 INFO L902 garLoopResultBuilder]: At program point L8183(line 8183) the Hoare annotation is: true [2022-11-20 20:29:10,795 INFO L899 garLoopResultBuilder]: For program point L7704(line 7704) no Hoare annotation was computed. [2022-11-20 20:29:10,795 INFO L899 garLoopResultBuilder]: For program point L7737-1(line 7737) no Hoare annotation was computed. [2022-11-20 20:29:10,796 INFO L895 garLoopResultBuilder]: At program point L7737(line 7737) the Hoare annotation is: (and (bvsle (_ bv6442450944 33) (bvadd ((_ sign_extend 1) (bvadd ~ref_cnt~0 (_ bv1 32))) (_ bv8589934591 33))) (= (_ bv3 32) ~ldv_state_variable_0~0) (= (_ bv1 32) ~ldv_state_variable_1~0)) [2022-11-20 20:29:10,796 INFO L899 garLoopResultBuilder]: For program point L7754(line 7754) no Hoare annotation was computed. [2022-11-20 20:29:10,796 INFO L899 garLoopResultBuilder]: For program point L7655-1(line 7655) no Hoare annotation was computed. [2022-11-20 20:29:10,796 INFO L895 garLoopResultBuilder]: At program point L7655(line 7655) the Hoare annotation is: (and (= ~ref_cnt~0 (_ bv0 32)) (= (_ bv0 32) ~ldv_state_variable_1~0) (= (_ bv1 32) ~ldv_state_variable_0~0)) [2022-11-20 20:29:10,796 INFO L899 garLoopResultBuilder]: For program point L7077(lines 7077 7080) no Hoare annotation was computed. [2022-11-20 20:29:10,796 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 20:29:10,797 INFO L899 garLoopResultBuilder]: For program point L7738(lines 7738 7742) no Hoare annotation was computed. [2022-11-20 20:29:10,797 INFO L899 garLoopResultBuilder]: For program point L7127(lines 7127 7130) no Hoare annotation was computed. [2022-11-20 20:29:10,797 INFO L899 garLoopResultBuilder]: For program point L7705-2(lines 7691 7756) no Hoare annotation was computed. [2022-11-20 20:29:10,797 INFO L899 garLoopResultBuilder]: For program point L7705(lines 7705 7709) no Hoare annotation was computed. [2022-11-20 20:29:10,797 INFO L899 garLoopResultBuilder]: For program point L7144(line 7144) no Hoare annotation was computed. [2022-11-20 20:29:10,797 INFO L899 garLoopResultBuilder]: For program point L7656(lines 7656 7659) no Hoare annotation was computed. [2022-11-20 20:29:10,798 INFO L895 garLoopResultBuilder]: At program point L7838(lines 7831 7840) the Hoare annotation is: (and (= ~ref_cnt~0 (_ bv0 32)) (= (_ bv1 32) ~ldv_state_variable_0~0) (= (_ bv1 32) ~ldv_state_variable_1~0)) [2022-11-20 20:29:10,798 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7750) no Hoare annotation was computed. [2022-11-20 20:29:10,798 INFO L895 garLoopResultBuilder]: At program point L7706(line 7706) the Hoare annotation is: (and (bvsle (_ bv6442450944 33) (bvadd ((_ sign_extend 1) (bvadd ~ref_cnt~0 (_ bv1 32))) (_ bv8589934591 33))) (= (_ bv3 32) ~ldv_state_variable_0~0) (= (_ bv1 32) ~ldv_state_variable_1~0)) [2022-11-20 20:29:10,798 INFO L899 garLoopResultBuilder]: For program point L7706-1(line 7706) no Hoare annotation was computed. [2022-11-20 20:29:10,798 INFO L899 garLoopResultBuilder]: For program point L7723-1(line 7723) no Hoare annotation was computed. [2022-11-20 20:29:10,798 INFO L895 garLoopResultBuilder]: At program point L7723(line 7723) the Hoare annotation is: (and (= (_ bv3 32) ~ldv_state_variable_0~0) (bvsle (_ bv6442450944 33) (bvadd (_ bv8589934591 33) ((_ sign_extend 1) ~ref_cnt~0))) (= (_ bv2 32) ~ldv_state_variable_1~0)) [2022-11-20 20:29:10,799 INFO L902 garLoopResultBuilder]: At program point L8301(lines 8300 8302) the Hoare annotation is: true [2022-11-20 20:29:10,799 INFO L899 garLoopResultBuilder]: For program point L7145(lines 7145 7157) no Hoare annotation was computed. [2022-11-20 20:29:10,799 INFO L899 garLoopResultBuilder]: For program point L7740-1(line 7740) no Hoare annotation was computed. [2022-11-20 20:29:10,799 INFO L899 garLoopResultBuilder]: For program point L7740(line 7740) no Hoare annotation was computed. [2022-11-20 20:29:10,799 INFO L902 garLoopResultBuilder]: At program point L7641-1(line 7641) the Hoare annotation is: true [2022-11-20 20:29:10,800 INFO L895 garLoopResultBuilder]: At program point L7096(lines 7075 7100) the Hoare annotation is: (let ((.cse1 (= ~ref_cnt~0 (_ bv0 32))) (.cse0 (= (_ bv1 32) ~ldv_state_variable_0~0))) (or (and (= (bvadd |ULTIMATE.start_scsi_tgt_init_~err~11#1| (_ bv12 32)) (_ bv0 32)) .cse0) (and .cse1 .cse0 (= (_ bv1 32) ~ldv_state_variable_1~0)) (and .cse1 (= (_ bv0 32) ~ldv_state_variable_1~0) .cse0))) [2022-11-20 20:29:10,800 INFO L902 garLoopResultBuilder]: At program point L7641(line 7641) the Hoare annotation is: true [2022-11-20 20:29:10,800 INFO L899 garLoopResultBuilder]: For program point L7691(lines 7691 7756) no Hoare annotation was computed. [2022-11-20 20:29:10,800 INFO L895 garLoopResultBuilder]: At program point L7757(lines 7687 7760) the Hoare annotation is: (let ((.cse0 (= (_ bv3 32) ~ldv_state_variable_0~0))) (or (and (bvsle (_ bv6442450944 33) (bvadd ((_ sign_extend 1) (bvadd ~ref_cnt~0 (_ bv1 32))) (_ bv8589934591 33))) .cse0 (= (_ bv1 32) ~ldv_state_variable_1~0)) (and .cse0 (bvsle (_ bv6442450944 33) (bvadd (_ bv8589934591 33) ((_ sign_extend 1) ~ref_cnt~0))) (= (_ bv2 32) ~ldv_state_variable_1~0)))) [2022-11-20 20:29:10,800 INFO L895 garLoopResultBuilder]: At program point L8319(lines 8318 8320) the Hoare annotation is: (and (= (_ bv3 32) ~ldv_state_variable_0~0) (bvsle (_ bv6442450944 33) (bvadd (_ bv8589934591 33) ((_ sign_extend 1) ~ref_cnt~0))) (= (_ bv2 32) ~ldv_state_variable_1~0)) [2022-11-20 20:29:10,800 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7740) no Hoare annotation was computed. [2022-11-20 20:29:10,801 INFO L899 garLoopResultBuilder]: For program point L7642(line 7642) no Hoare annotation was computed. [2022-11-20 20:29:10,801 INFO L899 garLoopResultBuilder]: For program point L8187-1(lines 8180 8194) no Hoare annotation was computed. [2022-11-20 20:29:10,801 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 20:29:10,801 INFO L902 garLoopResultBuilder]: At program point L8187(line 8187) the Hoare annotation is: true [2022-11-20 20:29:10,801 INFO L899 garLoopResultBuilder]: For program point L7147(lines 7147 7150) no Hoare annotation was computed. [2022-11-20 20:29:10,801 INFO L899 garLoopResultBuilder]: For program point L7692(line 7692) no Hoare annotation was computed. [2022-11-20 20:29:10,802 INFO L899 garLoopResultBuilder]: For program point L7147-2(lines 7145 7156) no Hoare annotation was computed. [2022-11-20 20:29:10,802 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 7740) no Hoare annotation was computed. [2022-11-20 20:29:10,802 INFO L899 garLoopResultBuilder]: For program point L7098(line 7098) no Hoare annotation was computed. [2022-11-20 20:29:10,802 INFO L899 garLoopResultBuilder]: For program point L7693-2(lines 7691 7756) no Hoare annotation was computed. [2022-11-20 20:29:10,802 INFO L899 garLoopResultBuilder]: For program point L7693(lines 7693 7697) no Hoare annotation was computed. [2022-11-20 20:29:10,803 INFO L895 garLoopResultBuilder]: At program point L8288(lines 8287 8289) the Hoare annotation is: (and (= (_ bv3 32) ~ldv_state_variable_0~0) (bvsle (_ bv6442450944 33) (bvadd (_ bv8589934591 33) ((_ sign_extend 1) ~ref_cnt~0))) (= (_ bv2 32) ~ldv_state_variable_1~0)) [2022-11-20 20:29:10,803 INFO L895 garLoopResultBuilder]: At program point L7099(lines 7070 7101) the Hoare annotation is: (let ((.cse0 (= ~ref_cnt~0 (_ bv0 32))) (.cse1 (= (_ bv1 32) ~ldv_state_variable_0~0))) (or (and .cse0 .cse1 (= (_ bv1 32) ~ldv_state_variable_1~0)) (and .cse0 (= (_ bv0 32) ~ldv_state_variable_1~0) .cse1) (and .cse1 (= (bvadd |ULTIMATE.start_scsi_tgt_init_#res#1| (_ bv12 32)) (_ bv0 32))))) [2022-11-20 20:29:10,803 INFO L899 garLoopResultBuilder]: For program point L7132(line 7132) no Hoare annotation was computed. [2022-11-20 20:29:10,803 INFO L902 garLoopResultBuilder]: At program point L7644(lines 7638 7646) the Hoare annotation is: true [2022-11-20 20:29:10,803 INFO L895 garLoopResultBuilder]: At program point L7694(line 7694) the Hoare annotation is: (and (bvsle (_ bv6442450944 33) (bvadd ((_ sign_extend 1) (bvadd ~ref_cnt~0 (_ bv1 32))) (_ bv8589934591 33))) (= (_ bv3 32) ~ldv_state_variable_0~0) (= (_ bv1 32) ~ldv_state_variable_1~0)) [2022-11-20 20:29:10,803 INFO L895 garLoopResultBuilder]: At program point L8305(lines 8304 8306) the Hoare annotation is: (and (= ~ref_cnt~0 (_ bv0 32)) (= (_ bv1 32) ~ldv_state_variable_0~0)) [2022-11-20 20:29:10,804 INFO L899 garLoopResultBuilder]: For program point L7694-1(line 7694) no Hoare annotation was computed. [2022-11-20 20:29:10,804 INFO L899 garLoopResultBuilder]: For program point L7661(lines 7661 7664) no Hoare annotation was computed. [2022-11-20 20:29:10,804 INFO L899 garLoopResultBuilder]: For program point L7711-1(line 7711) no Hoare annotation was computed. [2022-11-20 20:29:10,804 INFO L899 garLoopResultBuilder]: For program point L7166(line 7166) no Hoare annotation was computed. [2022-11-20 20:29:10,804 INFO L895 garLoopResultBuilder]: At program point L7711(line 7711) the Hoare annotation is: (and (= (_ bv3 32) ~ldv_state_variable_0~0) (bvsle (_ bv6442450944 33) (bvadd (_ bv8589934591 33) ((_ sign_extend 1) ~ref_cnt~0))) (= (_ bv2 32) ~ldv_state_variable_1~0)) [2022-11-20 20:29:10,804 INFO L899 garLoopResultBuilder]: For program point L7133(lines 7133 7164) no Hoare annotation was computed. [2022-11-20 20:29:10,805 INFO L895 garLoopResultBuilder]: At program point L7662(lines 7649 7671) the Hoare annotation is: (and (= ~ref_cnt~0 (_ bv0 32)) (= (_ bv1 32) ~ldv_state_variable_0~0) (= (_ bv1 32) ~ldv_state_variable_1~0)) [2022-11-20 20:29:10,805 INFO L899 garLoopResultBuilder]: For program point L7728(line 7728) no Hoare annotation was computed. [2022-11-20 20:29:10,805 INFO L899 garLoopResultBuilder]: For program point L7084(lines 7084 7088) no Hoare annotation was computed. [2022-11-20 20:29:10,805 INFO L902 garLoopResultBuilder]: At program point L8191-1(lines 8178 8195) the Hoare annotation is: true [2022-11-20 20:29:10,805 INFO L902 garLoopResultBuilder]: At program point L8191(line 8191) the Hoare annotation is: true [2022-11-20 20:29:10,805 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 20:29:10,806 INFO L902 garLoopResultBuilder]: At program point L7828(lines 7821 7830) the Hoare annotation is: true [2022-11-20 20:29:10,806 INFO L895 garLoopResultBuilder]: At program point L8175(lines 8169 8177) the Hoare annotation is: (and (= (_ bv0 64) ~scsi_tgt_cmd_cache~0.offset) (= ~ref_cnt~0 (_ bv0 32)) (= (_ bv0 32) ~ldv_state_variable_1~0) (= (_ bv0 64) ~scsi_tgt_cmd_cache~0.base)) [2022-11-20 20:29:10,806 INFO L899 garLoopResultBuilder]: For program point L7729(lines 7729 7733) no Hoare annotation was computed. [2022-11-20 20:29:10,806 INFO L899 garLoopResultBuilder]: For program point L7746(line 7746) no Hoare annotation was computed. [2022-11-20 20:29:10,806 INFO L899 garLoopResultBuilder]: For program point L7135(lines 7135 7161) no Hoare annotation was computed. [2022-11-20 20:29:10,806 INFO L899 garLoopResultBuilder]: For program point L7747(lines 7747 7752) no Hoare annotation was computed. [2022-11-20 20:29:10,807 INFO L899 garLoopResultBuilder]: For program point L7136(line 7136) no Hoare annotation was computed. [2022-11-20 20:29:10,807 INFO L895 garLoopResultBuilder]: At program point L7169(lines 7118 7174) the Hoare annotation is: (let ((.cse1 (= ~ref_cnt~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) ~ldv_state_variable_1~0)) (.cse0 (= (_ bv3 32) ~ldv_state_variable_0~0))) (or (and .cse0 .cse1 .cse2) (and (bvsle (_ bv6442450944 33) (bvadd ((_ sign_extend 1) (bvadd ~ref_cnt~0 (_ bv1 32))) (_ bv8589934591 33))) .cse0 (= (_ bv1 32) ~ldv_state_variable_1~0)) (and .cse1 .cse2 (= (_ bv1 32) ~ldv_state_variable_0~0)) (and .cse0 (bvsle (_ bv6442450944 33) (bvadd (_ bv8589934591 33) ((_ sign_extend 1) ~ref_cnt~0))) (= (_ bv2 32) ~ldv_state_variable_1~0)))) [2022-11-20 20:29:10,807 INFO L902 garLoopResultBuilder]: At program point L7153(lines 7118 7174) the Hoare annotation is: true [2022-11-20 20:29:10,807 INFO L902 garLoopResultBuilder]: At program point scsi_tgt_cmd_to_hostENTRY(lines 6765 6771) the Hoare annotation is: true [2022-11-20 20:29:10,807 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_cmd_to_hostFINAL(lines 6765 6771) no Hoare annotation was computed. [2022-11-20 20:29:10,808 INFO L899 garLoopResultBuilder]: For program point scsi_tgt_cmd_to_hostEXIT(lines 6765 6771) no Hoare annotation was computed. [2022-11-20 20:29:10,808 INFO L902 garLoopResultBuilder]: At program point spinlock_checkENTRY(lines 6342 6347) the Hoare annotation is: true [2022-11-20 20:29:10,808 INFO L899 garLoopResultBuilder]: For program point spinlock_checkEXIT(lines 6342 6347) no Hoare annotation was computed. [2022-11-20 20:29:10,808 INFO L899 garLoopResultBuilder]: For program point spinlock_checkFINAL(lines 6342 6347) no Hoare annotation was computed. [2022-11-20 20:29:10,812 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:29:10,814 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 20:29:10,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 08:29:10 BoogieIcfgContainer [2022-11-20 20:29:10,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 20:29:10,871 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 20:29:10,871 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 20:29:10,871 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 20:29:10,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:28:03" (3/4) ... [2022-11-20 20:29:10,875 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 20:29:10,888 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_idx_inc [2022-11-20 20:29:10,888 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __raw_spin_lock_init [2022-11-20 20:29:10,888 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_exit [2022-11-20 20:29:10,888 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uspace_ring_map [2022-11-20 20:29:10,888 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_destroy [2022-11-20 20:29:10,889 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_write [2022-11-20 20:29:10,889 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_ring_init [2022-11-20 20:29:10,889 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2022-11-20 20:29:10,889 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_del [2022-11-20 20:29:10,889 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_free [2022-11-20 20:29:10,889 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_head_event [2022-11-20 20:29:10,889 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_poll [2022-11-20 20:29:10,890 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_unmap_user_pages [2022-11-20 20:29:10,890 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _raw_spin_lock_irqsave [2022-11-20 20:29:10,890 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_put [2022-11-20 20:29:10,890 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hash_64 [2022-11-20 20:29:10,890 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2022-11-20 20:29:10,890 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_open [2022-11-20 20:29:10,890 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_host_lookup [2022-11-20 20:29:10,891 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure tgt_mmap [2022-11-20 20:29:10,891 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_release_buffers [2022-11-20 20:29:10,891 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmem_cache_destroy [2022-11-20 20:29:10,891 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spin_unlock_irqrestore [2022-11-20 20:29:10,891 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-11-20 20:29:10,891 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 20:29:10,891 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure destroy_workqueue [2022-11-20 20:29:10,892 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2022-11-20 20:29:10,892 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2022-11-20 20:29:10,892 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure scsi_tgt_cmd_to_host [2022-11-20 20:29:10,892 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spinlock_check [2022-11-20 20:29:10,925 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 178 nodes and edges [2022-11-20 20:29:10,927 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2022-11-20 20:29:10,929 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-20 20:29:10,931 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 20:29:10,932 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 20:29:10,934 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 20:29:10,975 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((ref_cnt == 0bv32 && 1bv32 == ldv_state_variable_0) && 1bv32 == ldv_state_variable_1) || ((ref_cnt == 0bv32 && 0bv32 == ldv_state_variable_1) && 1bv32 == ldv_state_variable_0)) || (1bv32 == ldv_state_variable_0 && ~bvadd16(\result, 12bv32) == 0bv32) [2022-11-20 20:29:10,987 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == 0bv64 && 0bv64 == \result) && 1bv32 == ldv_state_variable_0) || ((ref_cnt == 0bv32 && 0bv32 == ldv_state_variable_1) && 1bv32 == ldv_state_variable_0) [2022-11-20 20:29:11,100 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 20:29:11,101 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 20:29:11,101 INFO L158 Benchmark]: Toolchain (without parser) took 73437.82ms. Allocated memory was 107.0MB in the beginning and 597.7MB in the end (delta: 490.7MB). Free memory was 74.8MB in the beginning and 266.5MB in the end (delta: -191.7MB). Peak memory consumption was 301.6MB. Max. memory is 16.1GB. [2022-11-20 20:29:11,102 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 69.2MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:29:11,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2726.17ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 74.5MB in the beginning and 66.8MB in the end (delta: 7.7MB). Peak memory consumption was 76.6MB. Max. memory is 16.1GB. [2022-11-20 20:29:11,107 INFO L158 Benchmark]: Boogie Procedure Inliner took 191.62ms. Allocated memory is still 144.7MB. Free memory was 66.8MB in the beginning and 58.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 20:29:11,108 INFO L158 Benchmark]: Boogie Preprocessor took 101.74ms. Allocated memory is still 144.7MB. Free memory was 58.4MB in the beginning and 49.3MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 20:29:11,108 INFO L158 Benchmark]: RCFGBuilder took 3186.62ms. Allocated memory was 144.7MB in the beginning and 203.4MB in the end (delta: 58.7MB). Free memory was 49.3MB in the beginning and 121.9MB in the end (delta: -72.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-20 20:29:11,111 INFO L158 Benchmark]: TraceAbstraction took 66990.78ms. Allocated memory was 203.4MB in the beginning and 597.7MB in the end (delta: 394.3MB). Free memory was 121.9MB in the beginning and 285.3MB in the end (delta: -163.5MB). Peak memory consumption was 342.0MB. Max. memory is 16.1GB. [2022-11-20 20:29:11,111 INFO L158 Benchmark]: Witness Printer took 229.78ms. Allocated memory is still 597.7MB. Free memory was 285.3MB in the beginning and 266.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 20:29:11,118 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 69.2MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2726.17ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 74.5MB in the beginning and 66.8MB in the end (delta: 7.7MB). Peak memory consumption was 76.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 191.62ms. Allocated memory is still 144.7MB. Free memory was 66.8MB in the beginning and 58.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.74ms. Allocated memory is still 144.7MB. Free memory was 58.4MB in the beginning and 49.3MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 3186.62ms. Allocated memory was 144.7MB in the beginning and 203.4MB in the end (delta: 58.7MB). Free memory was 49.3MB in the beginning and 121.9MB in the end (delta: -72.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 66990.78ms. Allocated memory was 203.4MB in the beginning and 597.7MB in the end (delta: 394.3MB). Free memory was 121.9MB in the beginning and 285.3MB in the end (delta: -163.5MB). Peak memory consumption was 342.0MB. Max. memory is 16.1GB. * Witness Printer took 229.78ms. Allocated memory is still 597.7MB. Free memory was 285.3MB in the beginning and 266.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7545]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7627]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 387 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 66.8s, OverallIterations: 21, TraceHistogramMax: 24, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5770 SdHoareTripleChecker+Valid, 6.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5729 mSDsluCounter, 31559 SdHoareTripleChecker+Invalid, 5.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19826 mSDsCounter, 404 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1328 IncrementalHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 404 mSolverCounterUnsat, 11733 mSDtfsCounter, 1328 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7021 GetRequests, 6889 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5045occurred in iteration=18, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 21 MinimizatonAttempts, 2082 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 155 LocationsWithAnnotation, 13885 PreInvPairs, 14363 NumberOfFragments, 702 HoareAnnotationTreeSize, 13885 FomulaSimplifications, 719 FormulaSimplificationTreeSizeReduction, 2.1s HoareSimplificationTime, 155 FomulaSimplificationsInter, 25556 FormulaSimplificationTreeSizeReductionInter, 5.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 2.4s SsaConstructionTime, 16.6s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 4529 NumberOfCodeBlocks, 4529 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 6968 ConstructedInterpolants, 0 QuantifiedInterpolants, 9197 SizeOfPredicates, 26 NumberOfNonLiveVariables, 29711 ConjunctsInSsa, 126 ConjunctsInUnsatCore, 60 InterpolantComputations, 20 PerfectInterpolantSequences, 14102/15741 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 7595]: Loop Invariant Derived loop invariant: NULL - InvariantResult [Line: 7533]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8169]: Loop Invariant Derived loop invariant: ((0bv64 == scsi_tgt_cmd_cache && ref_cnt == 0bv32) && 0bv32 == ldv_state_variable_1) && 0bv64 == scsi_tgt_cmd_cache - InvariantResult [Line: 8346]: Loop Invariant Derived loop invariant: (((!~bvsle33(6442450944bv33, ~bvadd16(~sign_extendFrom32To64(~bvadd16(ref_cnt, 1bv32)), 8589934591bv33)) || !(3bv32 == ldv_state_variable_0)) || !(1bv32 == ldv_state_variable_1)) || ~bvule32(i, 15bv32)) && (((!(2bv32 == ldv_state_variable_1) || !~bvsle33(6442450944bv33, ~bvadd16(8589934591bv33, ~sign_extendFrom32To64(ref_cnt)))) || !(3bv32 == ldv_state_variable_0)) || ~bvule32(i, 15bv32)) - InvariantResult [Line: 8212]: Loop Invariant Derived loop invariant: (((!~bvsle33(6442450944bv33, ~bvadd16(~sign_extendFrom32To64(~bvadd16(ref_cnt, 1bv32)), 8589934591bv33)) || !(3bv32 == ldv_state_variable_0)) || !(1bv32 == ldv_state_variable_1)) || ~bvule32(i, 15bv32)) && (((!(2bv32 == ldv_state_variable_1) || !~bvsle33(6442450944bv33, ~bvadd16(8589934591bv33, ~sign_extendFrom32To64(ref_cnt)))) || !(3bv32 == ldv_state_variable_0)) || ~bvule32(i, 15bv32)) - InvariantResult [Line: 7456]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8258]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8254]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8264]: Loop Invariant Derived loop invariant: NULL - InvariantResult [Line: 6932]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7118]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6813]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6448]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6373]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7533]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8287]: Loop Invariant Derived loop invariant: (3bv32 == ldv_state_variable_0 && ~bvsle33(6442450944bv33, ~bvadd16(8589934591bv33, ~sign_extendFrom32To64(ref_cnt)))) && 2bv32 == ldv_state_variable_1 - InvariantResult [Line: 7051]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7454]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6920]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6880]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6866]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6818]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7649]: Loop Invariant Derived loop invariant: ((ref_cnt == 0bv32 && 1bv32 == ldv_state_variable_0) && 1bv32 == ldv_state_variable_1) || ((ref_cnt == 0bv32 && 0bv32 == ldv_state_variable_1) && 1bv32 == ldv_state_variable_0) - InvariantResult [Line: 7118]: Loop Invariant Derived loop invariant: ((((3bv32 == ldv_state_variable_0 && ref_cnt == 0bv32) && 0bv32 == ldv_state_variable_1) || ((~bvsle33(6442450944bv33, ~bvadd16(~sign_extendFrom32To64(~bvadd16(ref_cnt, 1bv32)), 8589934591bv33)) && 3bv32 == ldv_state_variable_0) && 1bv32 == ldv_state_variable_1)) || ((ref_cnt == 0bv32 && 0bv32 == ldv_state_variable_1) && 1bv32 == ldv_state_variable_0)) || ((3bv32 == ldv_state_variable_0 && ~bvsle33(6442450944bv33, ~bvadd16(8589934591bv33, ~sign_extendFrom32To64(ref_cnt)))) && 2bv32 == ldv_state_variable_1) - InvariantResult [Line: 8277]: Loop Invariant Derived loop invariant: ((\result == 0bv64 && 0bv64 == \result) && 1bv32 == ldv_state_variable_0) || ((ref_cnt == 0bv32 && 0bv32 == ldv_state_variable_1) && 1bv32 == ldv_state_variable_0) - InvariantResult [Line: 8224]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7102]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7647]: Loop Invariant Derived loop invariant: ((ref_cnt == 0bv32 && 1bv32 == ldv_state_variable_0) && 1bv32 == ldv_state_variable_1) || ((ref_cnt == 0bv32 && 0bv32 == ldv_state_variable_1) && 1bv32 == ldv_state_variable_0) - InvariantResult [Line: 7649]: Loop Invariant Derived loop invariant: (ref_cnt == 0bv32 && 1bv32 == ldv_state_variable_0) && 1bv32 == ldv_state_variable_1 - InvariantResult [Line: 6410]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7614]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7115]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7048]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7821]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7614]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7485]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7257]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7075]: Loop Invariant Derived loop invariant: ((~bvadd16(err, 12bv32) == 0bv32 && 1bv32 == ldv_state_variable_0) || ((ref_cnt == 0bv32 && 1bv32 == ldv_state_variable_0) && 1bv32 == ldv_state_variable_1)) || ((ref_cnt == 0bv32 && 0bv32 == ldv_state_variable_1) && 1bv32 == ldv_state_variable_0) - InvariantResult [Line: 8205]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8318]: Loop Invariant Derived loop invariant: (3bv32 == ldv_state_variable_0 && ~bvsle33(6442450944bv33, ~bvadd16(8589934591bv33, ~sign_extendFrom32To64(ref_cnt)))) && 2bv32 == ldv_state_variable_1 - InvariantResult [Line: 7005]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7614]: Loop Invariant Derived loop invariant: ((~bvule32(i, 15bv32) || !(1bv32 == ldv_state_variable_0)) || !(0bv32 == ldv_state_variable_1)) || !(ref_cnt == 0bv32) - InvariantResult [Line: 8304]: Loop Invariant Derived loop invariant: ref_cnt == 0bv32 && 1bv32 == ldv_state_variable_0 - InvariantResult [Line: 7831]: Loop Invariant Derived loop invariant: (ref_cnt == 0bv32 && 1bv32 == ldv_state_variable_0) && 1bv32 == ldv_state_variable_1 - InvariantResult [Line: 7593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7485]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7533]: Loop Invariant Derived loop invariant: (((!~bvsle33(6442450944bv33, ~bvadd16(~sign_extendFrom32To64(~bvadd16(ref_cnt, 1bv32)), 8589934591bv33)) || !(3bv32 == ldv_state_variable_0)) || !(1bv32 == ldv_state_variable_1)) || ~bvule32(i, 15bv32)) && (((!(2bv32 == ldv_state_variable_1) || !~bvsle33(6442450944bv33, ~bvadd16(8589934591bv33, ~sign_extendFrom32To64(ref_cnt)))) || !(3bv32 == ldv_state_variable_0)) || ~bvule32(i, 15bv32)) - InvariantResult [Line: 7638]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8271]: Loop Invariant Derived loop invariant: ((~bvule32(i, 15bv32) || !(1bv32 == ldv_state_variable_0)) || !(0bv32 == ldv_state_variable_1)) || !(ref_cnt == 0bv32) - InvariantResult [Line: 8296]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6842]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8178]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6797]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8238]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7002]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7070]: Loop Invariant Derived loop invariant: (((ref_cnt == 0bv32 && 1bv32 == ldv_state_variable_0) && 1bv32 == ldv_state_variable_1) || ((ref_cnt == 0bv32 && 0bv32 == ldv_state_variable_1) && 1bv32 == ldv_state_variable_0)) || (1bv32 == ldv_state_variable_0 && ~bvadd16(\result, 12bv32) == 0bv32) - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7687]: Loop Invariant Derived loop invariant: ((~bvsle33(6442450944bv33, ~bvadd16(~sign_extendFrom32To64(~bvadd16(ref_cnt, 1bv32)), 8589934591bv33)) && 3bv32 == ldv_state_variable_0) && 1bv32 == ldv_state_variable_1) || ((3bv32 == ldv_state_variable_0 && ~bvsle33(6442450944bv33, ~bvadd16(8589934591bv33, ~sign_extendFrom32To64(ref_cnt)))) && 2bv32 == ldv_state_variable_1) - InvariantResult [Line: 7075]: Loop Invariant Derived loop invariant: ((ref_cnt == 0bv32 && 1bv32 == ldv_state_variable_0) && 1bv32 == ldv_state_variable_1) || ((ref_cnt == 0bv32 && 0bv32 == ldv_state_variable_1) && 1bv32 == ldv_state_variable_0) - InvariantResult [Line: 7595]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6561]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8300]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6890]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8339]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 20:29:11,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_275458c7-cd1e-4345-8a08-a62ca52103f4/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE