./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d --- 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 20:03:18,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:03:18,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:03:18,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:03:18,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:03:18,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:03:18,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:03:18,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:03:18,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:03:18,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:03:18,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:03:18,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:03:18,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:03:18,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:03:18,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:03:18,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:03:18,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:03:18,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:03:18,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:03:18,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:03:18,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:03:18,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:03:18,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:03:18,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:03:18,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:03:18,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:03:18,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:03:18,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:03:18,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:03:18,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:03:18,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:03:18,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:03:18,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:03:18,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:03:18,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:03:18,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:03:18,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:03:18,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:03:18,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:03:18,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:03:18,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:03:18,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 20:03:18,653 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:03:18,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:03:18,654 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:03:18,655 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:03:18,655 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:03:18,656 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:03:18,656 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:03:18,656 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:03:18,657 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:03:18,657 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 20:03:18,657 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:03:18,658 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:03:18,658 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 20:03:18,658 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 20:03:18,659 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:03:18,659 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 20:03:18,659 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 20:03:18,660 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 20:03:18,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:03:18,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 20:03:18,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:03:18,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:03:18,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:03:18,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:03:18,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:03:18,663 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:03:18,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:03:18,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:03:18,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:03:18,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:03:18,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:03:18,665 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 20:03:18,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:03:18,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:03:18,665 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 20:03:18,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 20:03:18,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:03:18,666 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:03:18,666 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_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d [2022-11-20 20:03:18,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:03:18,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:03:18,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:03:18,975 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:03:18,976 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:03:18,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-20 20:03:22,281 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:03:23,204 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:03:23,206 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-20 20:03:23,302 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/data/0dae3ccda/487bf55617c846fcaaa33cafa656c92a/FLAG87e064ee7 [2022-11-20 20:03:23,330 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/data/0dae3ccda/487bf55617c846fcaaa33cafa656c92a [2022-11-20 20:03:23,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:03:23,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:03:23,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:03:23,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:03:23,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:03:23,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:03:23" (1/1) ... [2022-11-20 20:03:23,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12a2db1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:23, skipping insertion in model container [2022-11-20 20:03:23,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:03:23" (1/1) ... [2022-11-20 20:03:23,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:03:23,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:03:24,433 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 20:03:24,445 INFO L158 Benchmark]: Toolchain (without parser) took 1105.09ms. Allocated memory is still 148.9MB. Free memory was 105.3MB in the beginning and 97.0MB in the end (delta: 8.3MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. [2022-11-20 20:03:24,445 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 20:03:24,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1101.37ms. Allocated memory is still 148.9MB. Free memory was 105.3MB in the beginning and 97.0MB in the end (delta: 8.3MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. [2022-11-20 20:03:24,448 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1101.37ms. Allocated memory is still 148.9MB. Free memory was 105.3MB in the beginning and 97.0MB in the end (delta: 8.3MB). Peak memory consumption was 80.8MB. 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_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d --- 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 20:03:26,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 20:03:26,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 20:03:26,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 20:03:26,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 20:03:26,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 20:03:26,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 20:03:26,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 20:03:26,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 20:03:26,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 20:03:26,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 20:03:26,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 20:03:26,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 20:03:26,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 20:03:26,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 20:03:26,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 20:03:26,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 20:03:26,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 20:03:26,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 20:03:26,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 20:03:26,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 20:03:26,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 20:03:26,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 20:03:26,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 20:03:26,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 20:03:26,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 20:03:26,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 20:03:26,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 20:03:26,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 20:03:26,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 20:03:26,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 20:03:26,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 20:03:26,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 20:03:26,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 20:03:27,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 20:03:27,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 20:03:27,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 20:03:27,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 20:03:27,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 20:03:27,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 20:03:27,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 20:03:27,033 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-20 20:03:27,070 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 20:03:27,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 20:03:27,072 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 20:03:27,072 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 20:03:27,073 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 20:03:27,073 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 20:03:27,074 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 20:03:27,074 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 20:03:27,074 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 20:03:27,074 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 20:03:27,075 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 20:03:27,075 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 20:03:27,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 20:03:27,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 20:03:27,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 20:03:27,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 20:03:27,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 20:03:27,077 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 20:03:27,077 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 20:03:27,077 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 20:03:27,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 20:03:27,078 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 20:03:27,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 20:03:27,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 20:03:27,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 20:03:27,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 20:03:27,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:03:27,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 20:03:27,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 20:03:27,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 20:03:27,079 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 20:03:27,080 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 20:03:27,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 20:03:27,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 20:03:27,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 20:03:27,080 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_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d [2022-11-20 20:03:27,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 20:03:27,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 20:03:27,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 20:03:27,534 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 20:03:27,534 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 20:03:27,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-20 20:03:30,682 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 20:03:31,529 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 20:03:31,529 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-20 20:03:31,599 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/data/399f515a9/75f7cd5a99f643e8ae72d1697e769390/FLAG2a9edf840 [2022-11-20 20:03:31,626 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/data/399f515a9/75f7cd5a99f643e8ae72d1697e769390 [2022-11-20 20:03:31,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 20:03:31,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 20:03:31,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 20:03:31,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 20:03:31,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 20:03:31,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:03:31" (1/1) ... [2022-11-20 20:03:31,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc4a167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:31, skipping insertion in model container [2022-11-20 20:03:31,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:03:31" (1/1) ... [2022-11-20 20:03:31,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 20:03:31,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:03:35,652 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_5be34b41-1cbf-46ee-a26c-30aabc1920a2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-11-20 20:03:35,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:03:35,801 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 20:03:35,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 20:03:36,418 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_5be34b41-1cbf-46ee-a26c-30aabc1920a2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-11-20 20:03:36,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:03:36,438 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 20:03:37,465 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_5be34b41-1cbf-46ee-a26c-30aabc1920a2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-11-20 20:03:37,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 20:03:37,846 INFO L208 MainTranslator]: Completed translation [2022-11-20 20:03:37,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:37 WrapperNode [2022-11-20 20:03:37,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 20:03:37,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 20:03:37,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 20:03:37,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 20:03:37,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:37" (1/1) ... [2022-11-20 20:03:37,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:37" (1/1) ... [2022-11-20 20:03:38,248 INFO L138 Inliner]: procedures = 504, calls = 4850, calls flagged for inlining = 135, calls inlined = 106, statements flattened = 6360 [2022-11-20 20:03:38,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 20:03:38,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 20:03:38,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 20:03:38,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 20:03:38,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:37" (1/1) ... [2022-11-20 20:03:38,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:37" (1/1) ... [2022-11-20 20:03:38,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:37" (1/1) ... [2022-11-20 20:03:38,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:37" (1/1) ... [2022-11-20 20:03:38,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:37" (1/1) ... [2022-11-20 20:03:38,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:37" (1/1) ... [2022-11-20 20:03:38,588 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:37" (1/1) ... [2022-11-20 20:03:38,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:37" (1/1) ... [2022-11-20 20:03:38,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 20:03:38,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 20:03:38,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 20:03:38,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 20:03:38,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:37" (1/1) ... [2022-11-20 20:03:38,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 20:03:38,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 20:03:38,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 20:03:38,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 20:03:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-20 20:03:38,768 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-20 20:03:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_prepare_pkt [2022-11-20 20:03:38,768 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_prepare_pkt [2022-11-20 20:03:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 20:03:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 20:03:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-20 20:03:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-20 20:03:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_setup [2022-11-20 20:03:38,770 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_setup [2022-11-20 20:03:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-20 20:03:38,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-20 20:03:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 20:03:38,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 20:03:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure ll_dequeue [2022-11-20 20:03:38,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_dequeue [2022-11-20 20:03:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_close [2022-11-20 20:03:38,772 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_close [2022-11-20 20:03:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-20 20:03:38,773 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-20 20:03:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 20:03:38,773 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 20:03:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 20:03:38,774 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 20:03:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_flush [2022-11-20 20:03:38,775 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_flush [2022-11-20 20:03:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ath_dequeue [2022-11-20 20:03:38,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_dequeue [2022-11-20 20:03:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-20 20:03:38,777 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-20 20:03:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-20 20:03:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure h5_link_control [2022-11-20 20:03:38,778 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_link_control [2022-11-20 20:03:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 20:03:38,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 20:03:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 20:03:38,779 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 20:03:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure bt_skb_alloc___1 [2022-11-20 20:03:38,779 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_skb_alloc___1 [2022-11-20 20:03:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2022-11-20 20:03:38,779 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2022-11-20 20:03:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 20:03:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 20:03:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 20:03:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 20:03:38,780 INFO L130 BoogieDeclarations]: Found specification of procedure h4_enqueue [2022-11-20 20:03:38,781 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_enqueue [2022-11-20 20:03:38,781 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-20 20:03:38,781 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-20 20:03:38,781 INFO L130 BoogieDeclarations]: Found specification of procedure ath_hci_uart_work [2022-11-20 20:03:38,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_hci_uart_work [2022-11-20 20:03:38,782 INFO L130 BoogieDeclarations]: Found specification of procedure btbcm_set_bdaddr [2022-11-20 20:03:38,782 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_setup [2022-11-20 20:03:38,782 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_setup [2022-11-20 20:03:38,782 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 20:03:38,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 20:03:38,783 INFO L130 BoogieDeclarations]: Found specification of procedure __ll_do_awake [2022-11-20 20:03:38,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __ll_do_awake [2022-11-20 20:03:38,783 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2022-11-20 20:03:38,783 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2022-11-20 20:03:38,783 INFO L130 BoogieDeclarations]: Found specification of procedure h5_enqueue [2022-11-20 20:03:38,784 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_enqueue [2022-11-20 20:03:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_complete_rx_pkt [2022-11-20 20:03:38,784 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_complete_rx_pkt [2022-11-20 20:03:38,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 20:03:38,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 20:03:38,785 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_unregister_proto [2022-11-20 20:03:38,785 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_unregister_proto [2022-11-20 20:03:38,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 20:03:38,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 20:03:38,785 INFO L130 BoogieDeclarations]: Found specification of procedure hci_get_drvdata [2022-11-20 20:03:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_get_drvdata [2022-11-20 20:03:38,786 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_close [2022-11-20 20:03:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_close [2022-11-20 20:03:38,786 INFO L130 BoogieDeclarations]: Found specification of procedure btintel_set_bdaddr [2022-11-20 20:03:38,786 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-20 20:03:38,787 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-20 20:03:38,787 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_recv [2022-11-20 20:03:38,787 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_recv [2022-11-20 20:03:38,787 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 20:03:38,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 20:03:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_register_proto [2022-11-20 20:03:38,788 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_register_proto [2022-11-20 20:03:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_recv [2022-11-20 20:03:38,788 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_recv [2022-11-20 20:03:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-20 20:03:38,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-20 20:03:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_flush [2022-11-20 20:03:38,789 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_flush [2022-11-20 20:03:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 20:03:38,790 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2022-11-20 20:03:38,790 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2022-11-20 20:03:38,790 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-11-20 20:03:38,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-11-20 20:03:38,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 20:03:38,791 INFO L130 BoogieDeclarations]: Found specification of procedure bscp_get_crc [2022-11-20 20:03:38,791 INFO L138 BoogieDeclarations]: Found implementation of procedure bscp_get_crc [2022-11-20 20:03:38,791 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 20:03:38,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 20:03:38,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 20:03:38,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 20:03:38,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 20:03:38,792 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:03:38,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 20:03:38,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 20:03:38,792 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2022-11-20 20:03:38,793 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2022-11-20 20:03:38,793 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_init_work [2022-11-20 20:03:38,793 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_init_work [2022-11-20 20:03:38,793 INFO L130 BoogieDeclarations]: Found specification of procedure ll_close [2022-11-20 20:03:38,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_close [2022-11-20 20:03:38,794 INFO L130 BoogieDeclarations]: Found specification of procedure hci_register_dev [2022-11-20 20:03:38,794 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_register_dev [2022-11-20 20:03:38,796 INFO L130 BoogieDeclarations]: Found specification of procedure send_hcill_cmd [2022-11-20 20:03:38,797 INFO L138 BoogieDeclarations]: Found implementation of procedure send_hcill_cmd [2022-11-20 20:03:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-20 20:03:38,798 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-20 20:03:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INT [2022-11-20 20:03:38,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_INT~TO~C_INT [2022-11-20 20:03:38,804 INFO L130 BoogieDeclarations]: Found specification of procedure ath_flush [2022-11-20 20:03:38,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_flush [2022-11-20 20:03:38,804 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_msgdelim [2022-11-20 20:03:38,805 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_msgdelim [2022-11-20 20:03:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure h4_dequeue [2022-11-20 20:03:38,805 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_dequeue [2022-11-20 20:03:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure ath_wakeup_ar3k [2022-11-20 20:03:38,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_wakeup_ar3k [2022-11-20 20:03:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure h5_prepare_pkt [2022-11-20 20:03:38,805 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_prepare_pkt [2022-11-20 20:03:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-20 20:03:38,806 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-20 20:03:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 20:03:38,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 20:03:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_open [2022-11-20 20:03:38,806 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_open [2022-11-20 20:03:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 20:03:38,806 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 20:03:38,807 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_close [2022-11-20 20:03:38,807 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_close [2022-11-20 20:03:38,807 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 20:03:38,807 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 20:03:38,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 20:03:38,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 20:03:38,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 20:03:38,807 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 20:03:38,808 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 20:03:38,808 INFO L130 BoogieDeclarations]: Found specification of procedure h5_flush [2022-11-20 20:03:38,808 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_flush [2022-11-20 20:03:38,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 20:03:38,808 INFO L130 BoogieDeclarations]: Found specification of procedure ll_check_data_len [2022-11-20 20:03:38,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_check_data_len [2022-11-20 20:03:38,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 20:03:38,808 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-20 20:03:38,809 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-20 20:03:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 20:03:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 20:03:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 20:03:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 20:03:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 20:03:38,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 20:03:38,810 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_one_byte [2022-11-20 20:03:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_one_byte [2022-11-20 20:03:38,810 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-20 20:03:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-20 20:03:38,810 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-11-20 20:03:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-11-20 20:03:38,810 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_set_baudrate [2022-11-20 20:03:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_set_baudrate [2022-11-20 20:03:38,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2022-11-20 20:03:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2022-11-20 20:03:38,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-11-20 20:03:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-11-20 20:03:38,811 INFO L130 BoogieDeclarations]: Found specification of procedure ath_open [2022-11-20 20:03:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_open [2022-11-20 20:03:38,811 INFO L130 BoogieDeclarations]: Found specification of procedure ath_setup [2022-11-20 20:03:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_setup [2022-11-20 20:03:38,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 20:03:38,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 20:03:38,812 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2022-11-20 20:03:38,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2022-11-20 20:03:38,812 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_dequeue [2022-11-20 20:03:38,812 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_dequeue [2022-11-20 20:03:38,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 20:03:38,812 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 20:03:38,813 INFO L130 BoogieDeclarations]: Found specification of procedure hci_free_dev [2022-11-20 20:03:38,813 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_free_dev [2022-11-20 20:03:38,813 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2022-11-20 20:03:38,813 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2022-11-20 20:03:38,813 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 20:03:38,813 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 20:03:38,814 INFO L130 BoogieDeclarations]: Found specification of procedure h4_open [2022-11-20 20:03:38,814 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_open [2022-11-20 20:03:38,814 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-20 20:03:38,815 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-20 20:03:38,815 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-20 20:03:38,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-20 20:03:38,815 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_send_frame [2022-11-20 20:03:38,815 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_send_frame [2022-11-20 20:03:38,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 20:03:38,815 INFO L130 BoogieDeclarations]: Found specification of procedure __hci_cmd_sync [2022-11-20 20:03:38,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __hci_cmd_sync [2022-11-20 20:03:38,816 INFO L130 BoogieDeclarations]: Found specification of procedure ath_close [2022-11-20 20:03:38,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_close [2022-11-20 20:03:38,816 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_crc_update [2022-11-20 20:03:38,816 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_crc_update [2022-11-20 20:03:38,816 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 20:03:38,816 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 20:03:38,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 20:03:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-20 20:03:38,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-20 20:03:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-20 20:03:38,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-20 20:03:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure hci_recv_frame [2022-11-20 20:03:38,817 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_recv_frame [2022-11-20 20:03:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 20:03:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 20:03:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 20:03:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 20:03:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 20:03:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure h4_close [2022-11-20 20:03:38,818 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_close [2022-11-20 20:03:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-11-20 20:03:38,818 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-11-20 20:03:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure h5_reset_rx [2022-11-20 20:03:38,819 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_reset_rx [2022-11-20 20:03:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-20 20:03:38,819 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-20 20:03:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_termios [2022-11-20 20:03:38,819 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_termios [2022-11-20 20:03:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv [2022-11-20 20:03:38,819 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv [2022-11-20 20:03:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 20:03:38,820 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 20:03:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-20 20:03:38,820 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-20 20:03:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-20 20:03:38,820 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-20 20:03:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure ath_recv [2022-11-20 20:03:38,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_recv [2022-11-20 20:03:38,823 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_flush [2022-11-20 20:03:38,824 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_flush [2022-11-20 20:03:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure h5_close [2022-11-20 20:03:38,825 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_close [2022-11-20 20:03:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_dequeue [2022-11-20 20:03:38,825 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_dequeue [2022-11-20 20:03:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 20:03:38,826 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 20:03:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_one_byte [2022-11-20 20:03:38,828 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_one_byte [2022-11-20 20:03:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_open [2022-11-20 20:03:38,828 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_open [2022-11-20 20:03:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure h5_dequeue [2022-11-20 20:03:38,828 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_dequeue [2022-11-20 20:03:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_delim [2022-11-20 20:03:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_delim [2022-11-20 20:03:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_close [2022-11-20 20:03:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_close [2022-11-20 20:03:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-20 20:03:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-20 20:03:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure ath_enqueue [2022-11-20 20:03:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_enqueue [2022-11-20 20:03:38,829 INFO L130 BoogieDeclarations]: Found specification of procedure h5_open [2022-11-20 20:03:38,829 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_open [2022-11-20 20:03:38,830 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-20 20:03:38,830 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-20 20:03:38,830 INFO L130 BoogieDeclarations]: Found specification of procedure ll_enqueue [2022-11-20 20:03:38,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_enqueue [2022-11-20 20:03:38,830 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 20:03:38,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 20:03:38,830 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 20:03:38,830 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 20:03:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv_buf [2022-11-20 20:03:38,831 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv_buf [2022-11-20 20:03:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 20:03:38,831 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 20:03:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-11-20 20:03:38,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-11-20 20:03:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-20 20:03:38,831 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-20 20:03:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 20:03:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 20:03:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 20:03:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 20:03:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 20:03:38,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 20:03:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure tty_driver_flush_buffer [2022-11-20 20:03:38,832 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_driver_flush_buffer [2022-11-20 20:03:38,832 INFO L130 BoogieDeclarations]: Found specification of procedure h5_recv [2022-11-20 20:03:38,832 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_recv [2022-11-20 20:03:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure ll_open [2022-11-20 20:03:38,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_open [2022-11-20 20:03:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tx_wakeup [2022-11-20 20:03:38,833 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tx_wakeup [2022-11-20 20:03:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 20:03:38,833 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 20:03:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-20 20:03:38,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-20 20:03:38,833 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_set_baudrate [2022-11-20 20:03:38,834 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_set_baudrate [2022-11-20 20:03:38,834 INFO L130 BoogieDeclarations]: Found specification of procedure ll_flush [2022-11-20 20:03:38,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_flush [2022-11-20 20:03:38,834 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_enqueue [2022-11-20 20:03:38,834 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_enqueue [2022-11-20 20:03:38,834 INFO L130 BoogieDeclarations]: Found specification of procedure ll_recv [2022-11-20 20:03:38,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_recv [2022-11-20 20:03:38,834 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_write_work [2022-11-20 20:03:38,834 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_write_work [2022-11-20 20:03:38,835 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-20 20:03:38,835 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-20 20:03:38,835 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-20 20:03:38,835 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-20 20:03:38,835 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-20 20:03:38,835 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-20 20:03:38,835 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_open [2022-11-20 20:03:38,835 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_open [2022-11-20 20:03:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_enqueue [2022-11-20 20:03:38,836 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_enqueue [2022-11-20 20:03:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 20:03:38,836 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 20:03:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-20 20:03:38,836 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-20 20:03:38,836 INFO L130 BoogieDeclarations]: Found specification of procedure h4_flush [2022-11-20 20:03:38,836 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_flush [2022-11-20 20:03:40,024 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 20:03:40,029 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 20:03:46,693 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 20:05:24,767 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 20:05:24,806 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 20:05:24,806 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 20:05:24,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:05:24 BoogieIcfgContainer [2022-11-20 20:05:24,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 20:05:24,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 20:05:24,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 20:05:24,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 20:05:24,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:03:31" (1/3) ... [2022-11-20 20:05:24,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a52de7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:05:24, skipping insertion in model container [2022-11-20 20:05:24,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:03:37" (2/3) ... [2022-11-20 20:05:24,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a52de7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:05:24, skipping insertion in model container [2022-11-20 20:05:24,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:05:24" (3/3) ... [2022-11-20 20:05:24,828 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-20 20:05:24,852 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 20:05:24,852 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 20:05:24,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 20:05:24,990 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;@7324512d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 20:05:24,991 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 20:05:25,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 2526 states, 1715 states have (on average 1.356268221574344) internal successors, (2326), 1763 states have internal predecessors, (2326), 665 states have call successors, (665), 145 states have call predecessors, (665), 144 states have return successors, (655), 644 states have call predecessors, (655), 655 states have call successors, (655) [2022-11-20 20:05:25,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-20 20:05:25,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:05:25,034 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:05:25,035 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:05:25,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:05:25,041 INFO L85 PathProgramCache]: Analyzing trace with hash 217941148, now seen corresponding path program 1 times [2022-11-20 20:05:25,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:05:25,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104452367] [2022-11-20 20:05:25,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:05:25,066 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 20:05:25,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:05:25,074 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:25,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:05:27,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 2316 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:05:27,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:05:27,583 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 20:05:27,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:05:27,584 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:05:27,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104452367] [2022-11-20 20:05:27,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104452367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:05:27,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:05:27,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:05:27,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18635515] [2022-11-20 20:05:27,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:05:27,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:05:27,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:05:27,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:05:27,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:27,644 INFO L87 Difference]: Start difference. First operand has 2526 states, 1715 states have (on average 1.356268221574344) internal successors, (2326), 1763 states have internal predecessors, (2326), 665 states have call successors, (665), 145 states have call predecessors, (665), 144 states have return successors, (655), 644 states have call predecessors, (655), 655 states have call successors, (655) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:05:28,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:05:28,585 INFO L93 Difference]: Finished difference Result 5038 states and 7477 transitions. [2022-11-20 20:05:28,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:05:28,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 56 [2022-11-20 20:05:28,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:05:28,631 INFO L225 Difference]: With dead ends: 5038 [2022-11-20 20:05:28,631 INFO L226 Difference]: Without dead ends: 2476 [2022-11-20 20:05:28,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:28,657 INFO L413 NwaCegarLoop]: 3629 mSDtfsCounter, 3615 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3615 SdHoareTripleChecker+Valid, 3629 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 20:05:28,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3615 Valid, 3629 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 20:05:28,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2022-11-20 20:05:28,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2476. [2022-11-20 20:05:28,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 1686 states have (on average 1.34994068801898) internal successors, (2276), 1722 states have internal predecessors, (2276), 647 states have call successors, (647), 143 states have call predecessors, (647), 142 states have return successors, (646), 635 states have call predecessors, (646), 646 states have call successors, (646) [2022-11-20 20:05:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3569 transitions. [2022-11-20 20:05:28,906 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3569 transitions. Word has length 56 [2022-11-20 20:05:28,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:05:28,907 INFO L495 AbstractCegarLoop]: Abstraction has 2476 states and 3569 transitions. [2022-11-20 20:05:28,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:05:28,907 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3569 transitions. [2022-11-20 20:05:28,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-20 20:05:28,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:05:28,913 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:05:28,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-20 20:05:29,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:29,127 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:05:29,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:05:29,128 INFO L85 PathProgramCache]: Analyzing trace with hash 357916371, now seen corresponding path program 1 times [2022-11-20 20:05:29,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:05:29,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458877820] [2022-11-20 20:05:29,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:05:29,133 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 20:05:29,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:05:29,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:29,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:05:31,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 2312 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:05:31,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:05:31,257 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 20:05:31,257 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:05:31,257 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:05:31,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458877820] [2022-11-20 20:05:31,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458877820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:05:31,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:05:31,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:05:31,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778159563] [2022-11-20 20:05:31,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:05:31,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:05:31,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:05:31,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:05:31,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:31,261 INFO L87 Difference]: Start difference. First operand 2476 states and 3569 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:05:31,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:05:31,683 INFO L93 Difference]: Finished difference Result 4944 states and 7129 transitions. [2022-11-20 20:05:31,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:05:31,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 54 [2022-11-20 20:05:31,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:05:31,702 INFO L225 Difference]: With dead ends: 4944 [2022-11-20 20:05:31,702 INFO L226 Difference]: Without dead ends: 2474 [2022-11-20 20:05:31,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:31,717 INFO L413 NwaCegarLoop]: 3564 mSDtfsCounter, 3552 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3552 SdHoareTripleChecker+Valid, 3564 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:05:31,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3552 Valid, 3564 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:05:31,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-11-20 20:05:31,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-11-20 20:05:31,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 1685 states have (on average 1.3495548961424333) internal successors, (2274), 1721 states have internal predecessors, (2274), 646 states have call successors, (646), 143 states have call predecessors, (646), 142 states have return successors, (645), 634 states have call predecessors, (645), 645 states have call successors, (645) [2022-11-20 20:05:31,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3565 transitions. [2022-11-20 20:05:31,965 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3565 transitions. Word has length 54 [2022-11-20 20:05:31,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:05:31,966 INFO L495 AbstractCegarLoop]: Abstraction has 2474 states and 3565 transitions. [2022-11-20 20:05:31,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:05:31,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3565 transitions. [2022-11-20 20:05:31,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-20 20:05:31,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:05:31,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:05:32,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:32,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:32,192 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:05:32,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:05:32,193 INFO L85 PathProgramCache]: Analyzing trace with hash 446785186, now seen corresponding path program 1 times [2022-11-20 20:05:32,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:05:32,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957173074] [2022-11-20 20:05:32,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:05:32,197 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 20:05:32,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:05:32,199 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:32,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:05:33,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 2318 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:05:33,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:05:34,199 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 20:05:34,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:05:34,200 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:05:34,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957173074] [2022-11-20 20:05:34,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957173074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:05:34,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:05:34,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:05:34,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612224919] [2022-11-20 20:05:34,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:05:34,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:05:34,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:05:34,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:05:34,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:34,203 INFO L87 Difference]: Start difference. First operand 2474 states and 3565 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:05:34,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:05:34,670 INFO L93 Difference]: Finished difference Result 4940 states and 7121 transitions. [2022-11-20 20:05:34,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:05:34,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2022-11-20 20:05:34,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:05:34,691 INFO L225 Difference]: With dead ends: 4940 [2022-11-20 20:05:34,691 INFO L226 Difference]: Without dead ends: 2472 [2022-11-20 20:05:34,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:34,711 INFO L413 NwaCegarLoop]: 3560 mSDtfsCounter, 3545 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3545 SdHoareTripleChecker+Valid, 3560 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:05:34,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3545 Valid, 3560 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:05:34,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2472 states. [2022-11-20 20:05:34,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2472 to 2472. [2022-11-20 20:05:34,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2472 states, 1684 states have (on average 1.3491686460807601) internal successors, (2272), 1720 states have internal predecessors, (2272), 645 states have call successors, (645), 143 states have call predecessors, (645), 142 states have return successors, (644), 633 states have call predecessors, (644), 644 states have call successors, (644) [2022-11-20 20:05:34,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2472 states to 2472 states and 3561 transitions. [2022-11-20 20:05:34,977 INFO L78 Accepts]: Start accepts. Automaton has 2472 states and 3561 transitions. Word has length 57 [2022-11-20 20:05:34,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:05:34,978 INFO L495 AbstractCegarLoop]: Abstraction has 2472 states and 3561 transitions. [2022-11-20 20:05:34,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:05:34,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2472 states and 3561 transitions. [2022-11-20 20:05:34,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-20 20:05:34,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:05:34,982 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:05:35,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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)] Ended with exit code 0 [2022-11-20 20:05:35,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:35,206 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:05:35,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:05:35,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1373970745, now seen corresponding path program 1 times [2022-11-20 20:05:35,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:05:35,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28329956] [2022-11-20 20:05:35,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:05:35,210 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 20:05:35,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:05:35,213 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:35,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:05:36,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 2314 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:05:36,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:05:37,197 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 20:05:37,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:05:37,198 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:05:37,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28329956] [2022-11-20 20:05:37,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [28329956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:05:37,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:05:37,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:05:37,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479030697] [2022-11-20 20:05:37,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:05:37,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:05:37,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:05:37,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:05:37,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:37,201 INFO L87 Difference]: Start difference. First operand 2472 states and 3561 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:05:37,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:05:37,652 INFO L93 Difference]: Finished difference Result 4936 states and 7113 transitions. [2022-11-20 20:05:37,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:05:37,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-11-20 20:05:37,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:05:37,672 INFO L225 Difference]: With dead ends: 4936 [2022-11-20 20:05:37,672 INFO L226 Difference]: Without dead ends: 2470 [2022-11-20 20:05:37,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:37,688 INFO L413 NwaCegarLoop]: 3556 mSDtfsCounter, 3543 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3543 SdHoareTripleChecker+Valid, 3556 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:05:37,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3543 Valid, 3556 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:05:37,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2470 states. [2022-11-20 20:05:37,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2470 to 2470. [2022-11-20 20:05:37,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 1683 states have (on average 1.3487819370172311) internal successors, (2270), 1719 states have internal predecessors, (2270), 644 states have call successors, (644), 143 states have call predecessors, (644), 142 states have return successors, (643), 632 states have call predecessors, (643), 643 states have call successors, (643) [2022-11-20 20:05:37,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3557 transitions. [2022-11-20 20:05:37,963 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3557 transitions. Word has length 55 [2022-11-20 20:05:37,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:05:37,965 INFO L495 AbstractCegarLoop]: Abstraction has 2470 states and 3557 transitions. [2022-11-20 20:05:37,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 20:05:37,966 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3557 transitions. [2022-11-20 20:05:37,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-20 20:05:37,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:05:37,971 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:05:38,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:38,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:38,196 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:05:38,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:05:38,196 INFO L85 PathProgramCache]: Analyzing trace with hash -194145626, now seen corresponding path program 1 times [2022-11-20 20:05:38,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:05:38,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769185395] [2022-11-20 20:05:38,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:05:38,199 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 20:05:38,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:05:38,201 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:38,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:05:39,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 2334 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:05:39,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:05:40,154 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 20:05:40,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:05:40,154 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:05:40,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769185395] [2022-11-20 20:05:40,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769185395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:05:40,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:05:40,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:05:40,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755247424] [2022-11-20 20:05:40,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:05:40,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:05:40,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:05:40,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:05:40,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:40,158 INFO L87 Difference]: Start difference. First operand 2470 states and 3557 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 20:05:40,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:05:40,650 INFO L93 Difference]: Finished difference Result 4932 states and 7105 transitions. [2022-11-20 20:05:40,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:05:40,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 58 [2022-11-20 20:05:40,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:05:40,667 INFO L225 Difference]: With dead ends: 4932 [2022-11-20 20:05:40,667 INFO L226 Difference]: Without dead ends: 2468 [2022-11-20 20:05:40,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:40,679 INFO L413 NwaCegarLoop]: 3552 mSDtfsCounter, 3539 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3539 SdHoareTripleChecker+Valid, 3552 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:05:40,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3539 Valid, 3552 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:05:40,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2022-11-20 20:05:40,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2468. [2022-11-20 20:05:40,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2468 states, 1682 states have (on average 1.3483947681331747) internal successors, (2268), 1718 states have internal predecessors, (2268), 643 states have call successors, (643), 143 states have call predecessors, (643), 142 states have return successors, (642), 631 states have call predecessors, (642), 642 states have call successors, (642) [2022-11-20 20:05:40,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2468 states to 2468 states and 3553 transitions. [2022-11-20 20:05:40,893 INFO L78 Accepts]: Start accepts. Automaton has 2468 states and 3553 transitions. Word has length 58 [2022-11-20 20:05:40,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:05:40,894 INFO L495 AbstractCegarLoop]: Abstraction has 2468 states and 3553 transitions. [2022-11-20 20:05:40,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 20:05:40,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2468 states and 3553 transitions. [2022-11-20 20:05:40,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-20 20:05:40,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:05:40,898 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:05:40,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:41,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:41,114 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:05:41,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:05:41,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1843750481, now seen corresponding path program 1 times [2022-11-20 20:05:41,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:05:41,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533171722] [2022-11-20 20:05:41,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:05:41,118 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 20:05:41,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:05:41,119 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:41,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:05:42,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 2338 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:05:42,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:05:43,102 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 20:05:43,103 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:05:43,103 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:05:43,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533171722] [2022-11-20 20:05:43,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533171722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:05:43,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:05:43,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:05:43,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028043191] [2022-11-20 20:05:43,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:05:43,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:05:43,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:05:43,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:05:43,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:43,106 INFO L87 Difference]: Start difference. First operand 2468 states and 3553 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 20:05:43,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:05:43,619 INFO L93 Difference]: Finished difference Result 4928 states and 7097 transitions. [2022-11-20 20:05:43,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:05:43,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 60 [2022-11-20 20:05:43,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:05:43,638 INFO L225 Difference]: With dead ends: 4928 [2022-11-20 20:05:43,638 INFO L226 Difference]: Without dead ends: 2466 [2022-11-20 20:05:43,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 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 20:05:43,652 INFO L413 NwaCegarLoop]: 3548 mSDtfsCounter, 3533 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3533 SdHoareTripleChecker+Valid, 3548 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:05:43,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3533 Valid, 3548 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:05:43,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2466 states. [2022-11-20 20:05:43,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2466 to 2466. [2022-11-20 20:05:43,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2466 states, 1681 states have (on average 1.3480071386079715) internal successors, (2266), 1717 states have internal predecessors, (2266), 642 states have call successors, (642), 143 states have call predecessors, (642), 142 states have return successors, (641), 630 states have call predecessors, (641), 641 states have call successors, (641) [2022-11-20 20:05:43,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 3549 transitions. [2022-11-20 20:05:43,923 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 3549 transitions. Word has length 60 [2022-11-20 20:05:43,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:05:43,924 INFO L495 AbstractCegarLoop]: Abstraction has 2466 states and 3549 transitions. [2022-11-20 20:05:43,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 20:05:43,925 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 3549 transitions. [2022-11-20 20:05:43,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-20 20:05:43,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:05:43,929 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, 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 20:05:43,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:44,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:44,154 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:05:44,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:05:44,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1841388721, now seen corresponding path program 1 times [2022-11-20 20:05:44,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:05:44,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017610671] [2022-11-20 20:05:44,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:05:44,158 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 20:05:44,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:05:44,159 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:44,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:05:45,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 2340 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:05:45,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:05:46,085 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 20:05:46,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:05:46,085 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:05:46,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017610671] [2022-11-20 20:05:46,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017610671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:05:46,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:05:46,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:05:46,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620479119] [2022-11-20 20:05:46,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:05:46,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:05:46,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:05:46,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:05:46,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:46,088 INFO L87 Difference]: Start difference. First operand 2466 states and 3549 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 20:05:46,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:05:46,547 INFO L93 Difference]: Finished difference Result 4924 states and 7089 transitions. [2022-11-20 20:05:46,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:05:46,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 61 [2022-11-20 20:05:46,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:05:46,570 INFO L225 Difference]: With dead ends: 4924 [2022-11-20 20:05:46,570 INFO L226 Difference]: Without dead ends: 2464 [2022-11-20 20:05:46,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 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 20:05:46,583 INFO L413 NwaCegarLoop]: 3544 mSDtfsCounter, 3528 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3528 SdHoareTripleChecker+Valid, 3544 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:05:46,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3528 Valid, 3544 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:05:46,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2022-11-20 20:05:46,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 2464. [2022-11-20 20:05:46,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2464 states, 1680 states have (on average 1.3476190476190477) internal successors, (2264), 1716 states have internal predecessors, (2264), 641 states have call successors, (641), 143 states have call predecessors, (641), 142 states have return successors, (640), 629 states have call predecessors, (640), 640 states have call successors, (640) [2022-11-20 20:05:46,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2464 states to 2464 states and 3545 transitions. [2022-11-20 20:05:46,876 INFO L78 Accepts]: Start accepts. Automaton has 2464 states and 3545 transitions. Word has length 61 [2022-11-20 20:05:46,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:05:46,877 INFO L495 AbstractCegarLoop]: Abstraction has 2464 states and 3545 transitions. [2022-11-20 20:05:46,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 20:05:46,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2464 states and 3545 transitions. [2022-11-20 20:05:46,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-20 20:05:46,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:05:46,880 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:05:46,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:47,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:47,094 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:05:47,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:05:47,094 INFO L85 PathProgramCache]: Analyzing trace with hash -476967672, now seen corresponding path program 1 times [2022-11-20 20:05:47,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:05:47,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075586686] [2022-11-20 20:05:47,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:05:47,097 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 20:05:47,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:05:47,098 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:47,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 20:05:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:05:48,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 2336 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:05:48,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:05:48,999 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 20:05:48,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:05:48,999 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:05:48,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075586686] [2022-11-20 20:05:48,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075586686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:05:49,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:05:49,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:05:49,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113363077] [2022-11-20 20:05:49,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:05:49,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:05:49,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:05:49,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:05:49,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:49,001 INFO L87 Difference]: Start difference. First operand 2464 states and 3545 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 20:05:49,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:05:49,505 INFO L93 Difference]: Finished difference Result 4550 states and 6533 transitions. [2022-11-20 20:05:49,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:05:49,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 59 [2022-11-20 20:05:49,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:05:49,518 INFO L225 Difference]: With dead ends: 4550 [2022-11-20 20:05:49,518 INFO L226 Difference]: Without dead ends: 2092 [2022-11-20 20:05:49,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 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 20:05:49,530 INFO L413 NwaCegarLoop]: 2992 mSDtfsCounter, 2978 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 2992 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 20:05:49,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2978 Valid, 2992 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 20:05:49,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2022-11-20 20:05:49,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 2092. [2022-11-20 20:05:49,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2092 states, 1436 states have (on average 1.3467966573816157) internal successors, (1934), 1461 states have internal predecessors, (1934), 530 states have call successors, (530), 126 states have call predecessors, (530), 125 states have return successors, (529), 522 states have call predecessors, (529), 529 states have call successors, (529) [2022-11-20 20:05:49,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2993 transitions. [2022-11-20 20:05:49,754 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2993 transitions. Word has length 59 [2022-11-20 20:05:49,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:05:49,754 INFO L495 AbstractCegarLoop]: Abstraction has 2092 states and 2993 transitions. [2022-11-20 20:05:49,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-20 20:05:49,755 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2993 transitions. [2022-11-20 20:05:49,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 20:05:49,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:05:49,759 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 20:05:49,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 20:05:49,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:49,986 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:05:49,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:05:49,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1988370414, now seen corresponding path program 1 times [2022-11-20 20:05:49,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:05:49,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930722353] [2022-11-20 20:05:49,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:05:49,989 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 20:05:49,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:05:49,992 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:49,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 20:05:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:05:51,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 2361 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:05:51,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:05:51,838 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:05:51,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:05:51,838 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:05:51,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930722353] [2022-11-20 20:05:51,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930722353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:05:51,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:05:51,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:05:51,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453892486] [2022-11-20 20:05:51,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:05:51,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:05:51,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:05:51,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:05:51,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:51,841 INFO L87 Difference]: Start difference. First operand 2092 states and 2993 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 20:05:53,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:05:53,371 INFO L93 Difference]: Finished difference Result 6068 states and 8681 transitions. [2022-11-20 20:05:53,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:05:53,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 77 [2022-11-20 20:05:53,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:05:53,394 INFO L225 Difference]: With dead ends: 6068 [2022-11-20 20:05:53,394 INFO L226 Difference]: Without dead ends: 3982 [2022-11-20 20:05:53,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:53,406 INFO L413 NwaCegarLoop]: 3472 mSDtfsCounter, 2694 mSDsluCounter, 2897 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2694 SdHoareTripleChecker+Valid, 6369 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 20:05:53,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2694 Valid, 6369 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 20:05:53,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3982 states. [2022-11-20 20:05:53,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3982 to 3977. [2022-11-20 20:05:53,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3977 states, 2728 states have (on average 1.345307917888563) internal successors, (3670), 2779 states have internal predecessors, (3670), 1010 states have call successors, (1010), 239 states have call predecessors, (1010), 238 states have return successors, (1009), 994 states have call predecessors, (1009), 1009 states have call successors, (1009) [2022-11-20 20:05:53,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3977 states to 3977 states and 5689 transitions. [2022-11-20 20:05:53,961 INFO L78 Accepts]: Start accepts. Automaton has 3977 states and 5689 transitions. Word has length 77 [2022-11-20 20:05:53,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:05:53,961 INFO L495 AbstractCegarLoop]: Abstraction has 3977 states and 5689 transitions. [2022-11-20 20:05:53,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 20:05:53,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3977 states and 5689 transitions. [2022-11-20 20:05:53,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-20 20:05:53,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:05:53,966 INFO L195 NwaCegarLoop]: trace histogram [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 20:05:54,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 20:05:54,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:54,182 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:05:54,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:05:54,183 INFO L85 PathProgramCache]: Analyzing trace with hash 873302896, now seen corresponding path program 1 times [2022-11-20 20:05:54,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:05:54,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407193633] [2022-11-20 20:05:54,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:05:54,186 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 20:05:54,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:05:54,194 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:54,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:05:55,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 2332 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:05:55,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:05:56,026 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:05:56,026 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:05:56,027 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:05:56,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407193633] [2022-11-20 20:05:56,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407193633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:05:56,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:05:56,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:05:56,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662382118] [2022-11-20 20:05:56,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:05:56,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:05:56,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:05:56,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:05:56,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:05:56,030 INFO L87 Difference]: Start difference. First operand 3977 states and 5689 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 20:05:57,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:05:57,467 INFO L93 Difference]: Finished difference Result 11404 states and 16277 transitions. [2022-11-20 20:05:57,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:05:57,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 78 [2022-11-20 20:05:57,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:05:57,516 INFO L225 Difference]: With dead ends: 11404 [2022-11-20 20:05:57,516 INFO L226 Difference]: Without dead ends: 7433 [2022-11-20 20:05:57,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 20:05:57,532 INFO L413 NwaCegarLoop]: 3681 mSDtfsCounter, 2589 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2589 SdHoareTripleChecker+Valid, 6635 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 20:05:57,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2589 Valid, 6635 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 20:05:57,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7433 states. [2022-11-20 20:05:58,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7433 to 7430. [2022-11-20 20:05:58,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7430 states, 5097 states have (on average 1.3441239945065724) internal successors, (6851), 5194 states have internal predecessors, (6851), 1870 states have call successors, (1870), 463 states have call predecessors, (1870), 462 states have return successors, (1869), 1840 states have call predecessors, (1869), 1869 states have call successors, (1869) [2022-11-20 20:05:58,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7430 states to 7430 states and 10590 transitions. [2022-11-20 20:05:58,423 INFO L78 Accepts]: Start accepts. Automaton has 7430 states and 10590 transitions. Word has length 78 [2022-11-20 20:05:58,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:05:58,423 INFO L495 AbstractCegarLoop]: Abstraction has 7430 states and 10590 transitions. [2022-11-20 20:05:58,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 20:05:58,424 INFO L276 IsEmpty]: Start isEmpty. Operand 7430 states and 10590 transitions. [2022-11-20 20:05:58,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 20:05:58,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:05:58,427 INFO L195 NwaCegarLoop]: trace histogram [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 20:05:58,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:58,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:58,650 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:05:58,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:05:58,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1195801299, now seen corresponding path program 1 times [2022-11-20 20:05:58,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:05:58,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356563478] [2022-11-20 20:05:58,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:05:58,653 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 20:05:58,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:05:58,655 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:05:58,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:06:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:06:00,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 2319 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:06:00,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:06:00,558 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:06:00,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:06:00,558 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:06:00,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356563478] [2022-11-20 20:06:00,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356563478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:06:00,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:06:00,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:06:00,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413146098] [2022-11-20 20:06:00,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:06:00,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:06:00,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:06:00,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:06:00,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:06:00,561 INFO L87 Difference]: Start difference. First operand 7430 states and 10590 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 20:06:02,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:06:02,359 INFO L93 Difference]: Finished difference Result 21877 states and 31168 transitions. [2022-11-20 20:06:02,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:06:02,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 75 [2022-11-20 20:06:02,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:06:02,441 INFO L225 Difference]: With dead ends: 21877 [2022-11-20 20:06:02,441 INFO L226 Difference]: Without dead ends: 14453 [2022-11-20 20:06:02,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 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 20:06:02,470 INFO L413 NwaCegarLoop]: 3943 mSDtfsCounter, 2828 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2828 SdHoareTripleChecker+Valid, 6897 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 20:06:02,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2828 Valid, 6897 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 20:06:02,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14453 states. [2022-11-20 20:06:04,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14453 to 14446. [2022-11-20 20:06:04,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14446 states, 9915 states have (on average 1.3437216338880484) internal successors, (13323), 10110 states have internal predecessors, (13323), 3626 states have call successors, (3626), 905 states have call predecessors, (3626), 904 states have return successors, (3625), 3566 states have call predecessors, (3625), 3625 states have call successors, (3625) [2022-11-20 20:06:04,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14446 states to 14446 states and 20574 transitions. [2022-11-20 20:06:04,203 INFO L78 Accepts]: Start accepts. Automaton has 14446 states and 20574 transitions. Word has length 75 [2022-11-20 20:06:04,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:06:04,204 INFO L495 AbstractCegarLoop]: Abstraction has 14446 states and 20574 transitions. [2022-11-20 20:06:04,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 20:06:04,204 INFO L276 IsEmpty]: Start isEmpty. Operand 14446 states and 20574 transitions. [2022-11-20 20:06:04,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-20 20:06:04,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:06:04,208 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 20:06:04,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:06:04,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:06:04,426 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:06:04,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:06:04,427 INFO L85 PathProgramCache]: Analyzing trace with hash 208215671, now seen corresponding path program 1 times [2022-11-20 20:06:04,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:06:04,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037392853] [2022-11-20 20:06:04,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:06:04,431 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 20:06:04,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:06:04,433 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:06:04,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:06:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:06:06,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 2354 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:06:06,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:06:06,678 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:06:06,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:06:06,679 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:06:06,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037392853] [2022-11-20 20:06:06,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2037392853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:06:06,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:06:06,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:06:06,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142901467] [2022-11-20 20:06:06,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:06:06,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:06:06,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:06:06,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:06:06,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:06:06,681 INFO L87 Difference]: Start difference. First operand 14446 states and 20574 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 20:06:09,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:06:09,567 INFO L93 Difference]: Finished difference Result 41129 states and 58464 transitions. [2022-11-20 20:06:09,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:06:09,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 77 [2022-11-20 20:06:09,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:06:09,721 INFO L225 Difference]: With dead ends: 41129 [2022-11-20 20:06:09,722 INFO L226 Difference]: Without dead ends: 26689 [2022-11-20 20:06:09,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:06:09,791 INFO L413 NwaCegarLoop]: 3968 mSDtfsCounter, 2564 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2564 SdHoareTripleChecker+Valid, 6922 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 20:06:09,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2564 Valid, 6922 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 20:06:09,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26689 states. [2022-11-20 20:06:13,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26689 to 26678. [2022-11-20 20:06:13,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26678 states, 18379 states have (on average 1.344306001414658) internal successors, (24707), 18738 states have internal predecessors, (24707), 6586 states have call successors, (6586), 1713 states have call predecessors, (6586), 1712 states have return successors, (6585), 6466 states have call predecessors, (6585), 6585 states have call successors, (6585) [2022-11-20 20:06:13,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26678 states to 26678 states and 37878 transitions. [2022-11-20 20:06:13,477 INFO L78 Accepts]: Start accepts. Automaton has 26678 states and 37878 transitions. Word has length 77 [2022-11-20 20:06:13,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:06:13,477 INFO L495 AbstractCegarLoop]: Abstraction has 26678 states and 37878 transitions. [2022-11-20 20:06:13,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 20:06:13,478 INFO L276 IsEmpty]: Start isEmpty. Operand 26678 states and 37878 transitions. [2022-11-20 20:06:13,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-20 20:06:13,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:06:13,481 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 20:06:13,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:06:13,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:06:13,694 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:06:13,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:06:13,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1771736614, now seen corresponding path program 1 times [2022-11-20 20:06:13,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:06:13,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449735206] [2022-11-20 20:06:13,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:06:13,698 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 20:06:13,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:06:13,701 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:06:13,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:06:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:06:15,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 2343 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:06:15,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:06:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-20 20:06:15,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:06:15,829 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:06:15,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449735206] [2022-11-20 20:06:15,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449735206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:06:15,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:06:15,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:06:15,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703112740] [2022-11-20 20:06:15,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:06:15,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:06:15,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:06:15,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:06:15,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:06:15,832 INFO L87 Difference]: Start difference. First operand 26678 states and 37878 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 20:06:20,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 20:06:20,957 INFO L93 Difference]: Finished difference Result 72817 states and 103096 transitions. [2022-11-20 20:06:20,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 20:06:20,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 84 [2022-11-20 20:06:20,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 20:06:21,261 INFO L225 Difference]: With dead ends: 72817 [2022-11-20 20:06:21,261 INFO L226 Difference]: Without dead ends: 46145 [2022-11-20 20:06:21,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 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 20:06:21,392 INFO L413 NwaCegarLoop]: 4460 mSDtfsCounter, 2315 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2315 SdHoareTripleChecker+Valid, 7414 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 20:06:21,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2315 Valid, 7414 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 20:06:21,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46145 states. [2022-11-20 20:06:26,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46145 to 46126. [2022-11-20 20:06:26,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46126 states, 31739 states have (on average 1.3415356501465074) internal successors, (42579), 32362 states have internal predecessors, (42579), 11306 states have call successors, (11306), 3081 states have call predecessors, (11306), 3080 states have return successors, (11305), 11082 states have call predecessors, (11305), 11305 states have call successors, (11305) [2022-11-20 20:06:27,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46126 states to 46126 states and 65190 transitions. [2022-11-20 20:06:27,118 INFO L78 Accepts]: Start accepts. Automaton has 46126 states and 65190 transitions. Word has length 84 [2022-11-20 20:06:27,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 20:06:27,118 INFO L495 AbstractCegarLoop]: Abstraction has 46126 states and 65190 transitions. [2022-11-20 20:06:27,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-20 20:06:27,119 INFO L276 IsEmpty]: Start isEmpty. Operand 46126 states and 65190 transitions. [2022-11-20 20:06:27,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-20 20:06:27,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 20:06:27,122 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] [2022-11-20 20:06:27,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:06:27,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:06:27,338 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 20:06:27,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 20:06:27,338 INFO L85 PathProgramCache]: Analyzing trace with hash 89209535, now seen corresponding path program 1 times [2022-11-20 20:06:27,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 20:06:27,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179441712] [2022-11-20 20:06:27,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 20:06:27,341 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 20:06:27,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 20:06:27,344 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 20:06:27,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be34b41-1cbf-46ee-a26c-30aabc1920a2/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 (15)] Waiting until timeout for monitored process [2022-11-20 20:06:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 20:06:29,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 2408 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 20:06:29,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 20:06:29,320 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-20 20:06:29,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 20:06:29,320 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 20:06:29,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179441712] [2022-11-20 20:06:29,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179441712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 20:06:29,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 20:06:29,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 20:06:29,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748857007] [2022-11-20 20:06:29,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 20:06:29,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 20:06:29,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 20:06:29,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 20:06:29,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 20:06:29,322 INFO L87 Difference]: Start difference. First operand 46126 states and 65190 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8)