./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 --- 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 21:03:15,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:03:15,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:03:15,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:03:15,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:03:15,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:03:15,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:03:15,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:03:15,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:03:15,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:03:15,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:03:15,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:03:15,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:03:15,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:03:15,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:03:15,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:03:15,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:03:15,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:03:15,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:03:15,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:03:15,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:03:15,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:03:15,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:03:15,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:03:15,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:03:15,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:03:15,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:03:15,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:03:15,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:03:15,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:03:15,394 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:03:15,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:03:15,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:03:15,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:03:15,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:03:15,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:03:15,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:03:15,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:03:15,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:03:15,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:03:15,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:03:15,407 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-20 21:03:15,451 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:03:15,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:03:15,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:03:15,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:03:15,453 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:03:15,453 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:03:15,454 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:03:15,454 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:03:15,454 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:03:15,454 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:03:15,456 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:03:15,457 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:03:15,457 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:03:15,457 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:03:15,458 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:03:15,458 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:03:15,459 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:03:15,459 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:03:15,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:03:15,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:03:15,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:03:15,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:03:15,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:03:15,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:03:15,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:03:15,462 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:03:15,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:03:15,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:03:15,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:03:15,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:03:15,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:03:15,464 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:03:15,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:03:15,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:03:15,465 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:03:15,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:03:15,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:03:15,466 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:03:15,466 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_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 [2022-11-20 21:03:15,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:03:15,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:03:15,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:03:15,779 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:03:15,779 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:03:15,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2022-11-20 21:03:18,820 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:03:19,468 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:03:19,468 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2022-11-20 21:03:19,521 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/data/ef4401059/f1d453e7d7b444f09bbf63a424d7387b/FLAG256b1e661 [2022-11-20 21:03:19,538 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/data/ef4401059/f1d453e7d7b444f09bbf63a424d7387b [2022-11-20 21:03:19,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:03:19,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:03:19,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:03:19,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:03:19,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:03:19,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:03:19" (1/1) ... [2022-11-20 21:03:19,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d8fe2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:03:19, skipping insertion in model container [2022-11-20 21:03:19,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:03:19" (1/1) ... [2022-11-20 21:03:19,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:03:19,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:03:20,483 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 21:03:20,492 INFO L158 Benchmark]: Toolchain (without parser) took 944.69ms. Allocated memory is still 180.4MB. Free memory was 120.6MB in the beginning and 137.1MB in the end (delta: -16.4MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2022-11-20 21:03:20,493 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:03:20,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 942.52ms. Allocated memory is still 180.4MB. Free memory was 120.6MB in the beginning and 137.1MB in the end (delta: -16.4MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2022-11-20 21:03:20,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 142.6MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 942.52ms. Allocated memory is still 180.4MB. Free memory was 120.6MB in the beginning and 137.1MB in the end (delta: -16.4MB). Peak memory consumption was 72.9MB. 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_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 --- 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 21:03:22,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:03:22,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:03:22,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:03:22,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:03:22,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:03:22,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:03:22,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:03:22,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:03:22,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:03:22,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:03:22,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:03:22,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:03:22,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:03:22,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:03:22,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:03:22,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:03:22,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:03:22,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:03:22,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:03:22,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:03:22,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:03:22,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:03:22,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:03:22,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:03:22,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:03:22,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:03:22,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:03:22,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:03:22,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:03:22,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:03:22,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:03:22,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:03:22,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:03:22,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:03:22,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:03:22,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:03:22,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:03:22,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:03:22,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:03:22,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:03:22,911 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-20 21:03:22,944 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:03:22,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:03:22,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:03:22,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:03:22,947 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:03:22,947 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:03:22,948 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:03:22,948 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:03:22,948 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:03:22,948 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:03:22,949 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:03:22,950 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:03:22,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:03:22,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:03:22,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:03:22,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:03:22,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:03:22,952 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 21:03:22,952 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 21:03:22,952 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 21:03:22,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:03:22,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:03:22,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:03:22,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:03:22,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 21:03:22,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:03:22,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:03:22,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:03:22,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:03:22,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:03:22,955 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 21:03:22,955 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 21:03:22,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:03:22,956 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:03:22,956 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 21:03:22,956 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_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 [2022-11-20 21:03:23,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:03:23,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:03:23,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:03:23,379 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:03:23,380 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:03:23,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2022-11-20 21:03:26,422 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:03:27,039 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:03:27,039 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2022-11-20 21:03:27,084 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/data/174e36dd1/bc76d4d3867f488eae230f48219a272a/FLAG2150c1a26 [2022-11-20 21:03:27,106 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/data/174e36dd1/bc76d4d3867f488eae230f48219a272a [2022-11-20 21:03:27,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:03:27,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:03:27,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:03:27,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:03:27,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:03:27,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:03:27" (1/1) ... [2022-11-20 21:03:27,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ac8e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:03:27, skipping insertion in model container [2022-11-20 21:03:27,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:03:27" (1/1) ... [2022-11-20 21:03:27,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:03:27,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:03:30,331 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_09ef847e-33e1-4606-8252-7b2c7c07bf7e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[328915,328928] [2022-11-20 21:03:30,336 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_09ef847e-33e1-4606-8252-7b2c7c07bf7e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[329060,329073] [2022-11-20 21:03:30,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:03:30,461 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 21:03:30,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:03:30,865 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_09ef847e-33e1-4606-8252-7b2c7c07bf7e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[328915,328928] [2022-11-20 21:03:30,866 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_09ef847e-33e1-4606-8252-7b2c7c07bf7e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[329060,329073] [2022-11-20 21:03:30,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:03:30,928 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:03:31,346 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_09ef847e-33e1-4606-8252-7b2c7c07bf7e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[328915,328928] [2022-11-20 21:03:31,347 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_09ef847e-33e1-4606-8252-7b2c7c07bf7e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[329060,329073] [2022-11-20 21:03:31,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:03:31,617 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:03:31,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:03:31 WrapperNode [2022-11-20 21:03:31,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:03:31,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:03:31,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:03:31,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:03:31,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:03:31" (1/1) ... [2022-11-20 21:03:31,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:03:31" (1/1) ... [2022-11-20 21:03:32,026 INFO L138 Inliner]: procedures = 448, calls = 2034, calls flagged for inlining = 218, calls inlined = 203, statements flattened = 4727 [2022-11-20 21:03:32,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:03:32,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:03:32,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:03:32,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:03:32,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:03:31" (1/1) ... [2022-11-20 21:03:32,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:03:31" (1/1) ... [2022-11-20 21:03:32,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:03:31" (1/1) ... [2022-11-20 21:03:32,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:03:31" (1/1) ... [2022-11-20 21:03:32,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:03:31" (1/1) ... [2022-11-20 21:03:32,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:03:31" (1/1) ... [2022-11-20 21:03:32,341 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:03:31" (1/1) ... [2022-11-20 21:03:32,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:03:31" (1/1) ... [2022-11-20 21:03:32,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:03:32,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:03:32,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:03:32,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:03:32,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:03:31" (1/1) ... [2022-11-20 21:03:32,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:03:32,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:03:32,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:03:32,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:03:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 21:03:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 21:03:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 21:03:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 21:03:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-20 21:03:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-20 21:03:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-11-20 21:03:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-11-20 21:03:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 21:03:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 21:03:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 21:03:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 21:03:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure w840_remove1 [2022-11-20 21:03:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure w840_remove1 [2022-11-20 21:03:32,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_88 [2022-11-20 21:03:32,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_88 [2022-11-20 21:03:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 21:03:32,490 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 21:03:32,490 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 21:03:32,491 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 21:03:32,491 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-20 21:03:32,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-20 21:03:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 21:03:32,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 21:03:32,492 INFO L130 BoogieDeclarations]: Found specification of procedure update_link [2022-11-20 21:03:32,493 INFO L138 BoogieDeclarations]: Found implementation of procedure update_link [2022-11-20 21:03:32,493 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 21:03:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 21:03:32,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 21:03:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 21:03:32,494 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 21:03:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 21:03:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 21:03:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 21:03:32,495 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 21:03:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 21:03:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 21:03:32,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 21:03:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2022-11-20 21:03:32,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2022-11-20 21:03:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 21:03:32,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 21:03:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-20 21:03:32,497 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-20 21:03:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 21:03:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 21:03:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 21:03:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 21:03:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-20 21:03:32,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-20 21:03:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-20 21:03:32,499 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-20 21:03:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 21:03:32,500 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 21:03:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 21:03:32,500 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 21:03:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 21:03:32,500 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 21:03:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 21:03:32,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 21:03:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-20 21:03:32,501 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-20 21:03:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 21:03:32,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 21:03:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure init_rxtx_rings [2022-11-20 21:03:32,502 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rxtx_rings [2022-11-20 21:03:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 21:03:32,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 21:03:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 21:03:32,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 21:03:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 21:03:32,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 21:03:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 21:03:32,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 21:03:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure tx_timeout [2022-11-20 21:03:32,504 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_timeout [2022-11-20 21:03:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 21:03:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 21:03:32,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 21:03:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 21:03:32,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 21:03:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:03:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-11-20 21:03:32,506 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-11-20 21:03:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 21:03:32,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 21:03:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 21:03:32,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 21:03:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 21:03:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 21:03:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 21:03:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 21:03:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 21:03:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 21:03:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 21:03:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-20 21:03:32,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-20 21:03:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-20 21:03:32,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-20 21:03:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 21:03:32,509 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 21:03:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 21:03:32,509 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 21:03:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 21:03:32,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 21:03:32,510 INFO L130 BoogieDeclarations]: Found specification of procedure update_csr6 [2022-11-20 21:03:32,511 INFO L138 BoogieDeclarations]: Found implementation of procedure update_csr6 [2022-11-20 21:03:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 21:03:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure w840_resume [2022-11-20 21:03:32,515 INFO L138 BoogieDeclarations]: Found implementation of procedure w840_resume [2022-11-20 21:03:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-20 21:03:32,515 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-20 21:03:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:03:32,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:03:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 21:03:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 21:03:32,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 21:03:32,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 21:03:32,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 21:03:32,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 21:03:32,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 21:03:32,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 21:03:32,523 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2022-11-20 21:03:32,524 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2022-11-20 21:03:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-20 21:03:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-20 21:03:32,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-20 21:03:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 21:03:32,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 21:03:32,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2022-11-20 21:03:32,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2022-11-20 21:03:32,525 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 21:03:32,525 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 21:03:32,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 21:03:32,525 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 21:03:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2022-11-20 21:03:32,526 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2022-11-20 21:03:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 21:03:32,526 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 21:03:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 21:03:32,526 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 21:03:32,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 21:03:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 21:03:32,527 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 21:03:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 21:03:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 21:03:32,527 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 21:03:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 21:03:32,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_87 [2022-11-20 21:03:32,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_87 [2022-11-20 21:03:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 21:03:32,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 21:03:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 21:03:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 21:03:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 21:03:32,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 21:03:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 21:03:32,529 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 21:03:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2022-11-20 21:03:32,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2022-11-20 21:03:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 21:03:32,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 21:03:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2022-11-20 21:03:32,530 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2022-11-20 21:03:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2022-11-20 21:03:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2022-11-20 21:03:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 21:03:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 21:03:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 21:03:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 21:03:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-20 21:03:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-20 21:03:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 21:03:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 21:03:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 21:03:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 21:03:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 21:03:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 21:03:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 21:03:32,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 21:03:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2022-11-20 21:03:32,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2022-11-20 21:03:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2022-11-20 21:03:32,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2022-11-20 21:03:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-20 21:03:32,536 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-20 21:03:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-20 21:03:32,536 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-20 21:03:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-20 21:03:32,536 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-20 21:03:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 21:03:32,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 21:03:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 21:03:32,537 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 21:03:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 21:03:32,537 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 21:03:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure free_rxtx_rings [2022-11-20 21:03:32,537 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rxtx_rings [2022-11-20 21:03:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 21:03:32,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 21:03:33,403 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:03:33,415 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:03:36,613 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 21:04:19,130 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 21:04:19,228 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:04:19,246 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:04:19,246 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 21:04:19,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:04:19 BoogieIcfgContainer [2022-11-20 21:04:19,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:04:19,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:04:19,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:04:19,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:04:19,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:03:27" (1/3) ... [2022-11-20 21:04:19,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0f9839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:04:19, skipping insertion in model container [2022-11-20 21:04:19,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:03:31" (2/3) ... [2022-11-20 21:04:19,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0f9839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:04:19, skipping insertion in model container [2022-11-20 21:04:19,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:04:19" (3/3) ... [2022-11-20 21:04:19,259 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2022-11-20 21:04:19,279 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:04:19,279 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 21:04:19,364 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:04:19,373 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;@1c950377, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:04:19,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 21:04:19,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 1655 states, 1130 states have (on average 1.2805309734513275) internal successors, (1447), 1152 states have internal predecessors, (1447), 441 states have call successors, (441), 84 states have call predecessors, (441), 83 states have return successors, (436), 432 states have call predecessors, (436), 436 states have call successors, (436) [2022-11-20 21:04:19,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-20 21:04:19,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:19,425 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:04:19,426 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:19,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:19,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1518107232, now seen corresponding path program 1 times [2022-11-20 21:04:19,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:04:19,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616403053] [2022-11-20 21:04:19,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:19,452 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 21:04:19,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:04:19,458 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:19,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:21,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 1618 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 21:04:21,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:04:21,384 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-20 21:04:21,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:04:21,385 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:04:21,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616403053] [2022-11-20 21:04:21,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616403053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:21,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:21,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:04:21,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635447435] [2022-11-20 21:04:21,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:21,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:04:21,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:04:21,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:04:21,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:04:21,445 INFO L87 Difference]: Start difference. First operand has 1655 states, 1130 states have (on average 1.2805309734513275) internal successors, (1447), 1152 states have internal predecessors, (1447), 441 states have call successors, (441), 84 states have call predecessors, (441), 83 states have return successors, (436), 432 states have call predecessors, (436), 436 states have call successors, (436) Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 21:04:22,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:22,008 INFO L93 Difference]: Finished difference Result 4575 states and 6447 transitions. [2022-11-20 21:04:22,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:04:22,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 161 [2022-11-20 21:04:22,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:22,045 INFO L225 Difference]: With dead ends: 4575 [2022-11-20 21:04:22,046 INFO L226 Difference]: Without dead ends: 2873 [2022-11-20 21:04:22,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 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 21:04:22,062 INFO L413 NwaCegarLoop]: 2710 mSDtfsCounter, 1868 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1868 SdHoareTripleChecker+Valid, 4890 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 21:04:22,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1868 Valid, 4890 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 21:04:22,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2022-11-20 21:04:22,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 2869. [2022-11-20 21:04:22,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 1958 states have (on average 1.250255362614913) internal successors, (2448), 1995 states have internal predecessors, (2448), 751 states have call successors, (751), 160 states have call predecessors, (751), 159 states have return successors, (756), 739 states have call predecessors, (756), 751 states have call successors, (756) [2022-11-20 21:04:22,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 3955 transitions. [2022-11-20 21:04:22,322 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 3955 transitions. Word has length 161 [2022-11-20 21:04:22,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:22,323 INFO L495 AbstractCegarLoop]: Abstraction has 2869 states and 3955 transitions. [2022-11-20 21:04:22,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-20 21:04:22,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 3955 transitions. [2022-11-20 21:04:22,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-20 21:04:22,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:22,335 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:04:22,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 21:04:22,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:22,559 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:22,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:22,560 INFO L85 PathProgramCache]: Analyzing trace with hash 66788816, now seen corresponding path program 1 times [2022-11-20 21:04:22,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:04:22,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723063479] [2022-11-20 21:04:22,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:22,562 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 21:04:22,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:04:22,564 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:22,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:24,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 1661 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 21:04:24,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:04:24,458 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-11-20 21:04:24,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:04:24,459 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:04:24,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723063479] [2022-11-20 21:04:24,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723063479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:24,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:24,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:04:24,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219105752] [2022-11-20 21:04:24,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:24,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:04:24,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:04:24,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:04:24,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:04:24,464 INFO L87 Difference]: Start difference. First operand 2869 states and 3955 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 21:04:25,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:25,171 INFO L93 Difference]: Finished difference Result 8132 states and 11187 transitions. [2022-11-20 21:04:25,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:04:25,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 196 [2022-11-20 21:04:25,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:25,205 INFO L225 Difference]: With dead ends: 8132 [2022-11-20 21:04:25,206 INFO L226 Difference]: Without dead ends: 5284 [2022-11-20 21:04:25,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 194 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 21:04:25,220 INFO L413 NwaCegarLoop]: 2584 mSDtfsCounter, 1861 mSDsluCounter, 2137 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 4721 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 21:04:25,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1861 Valid, 4721 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 21:04:25,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5284 states. [2022-11-20 21:04:25,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5284 to 5279. [2022-11-20 21:04:25,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 3572 states have (on average 1.2458006718924972) internal successors, (4450), 3645 states have internal predecessors, (4450), 1392 states have call successors, (1392), 316 states have call predecessors, (1392), 314 states have return successors, (1405), 1365 states have call predecessors, (1405), 1392 states have call successors, (1405) [2022-11-20 21:04:25,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 7247 transitions. [2022-11-20 21:04:25,628 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 7247 transitions. Word has length 196 [2022-11-20 21:04:25,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:25,630 INFO L495 AbstractCegarLoop]: Abstraction has 5279 states and 7247 transitions. [2022-11-20 21:04:25,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 21:04:25,631 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 7247 transitions. [2022-11-20 21:04:25,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-20 21:04:25,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:25,641 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:04:25,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:25,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:25,859 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:25,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:25,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1366657543, now seen corresponding path program 1 times [2022-11-20 21:04:25,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:04:25,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977293393] [2022-11-20 21:04:25,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:25,862 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 21:04:25,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:04:25,865 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:25,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:27,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 1692 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 21:04:27,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:04:27,826 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-11-20 21:04:27,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:04:27,827 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:04:27,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977293393] [2022-11-20 21:04:27,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977293393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:27,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:27,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:04:27,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887501967] [2022-11-20 21:04:27,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:27,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:04:27,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:04:27,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:04:27,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:04:27,831 INFO L87 Difference]: Start difference. First operand 5279 states and 7247 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 21:04:28,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:28,700 INFO L93 Difference]: Finished difference Result 13166 states and 18052 transitions. [2022-11-20 21:04:28,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:04:28,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 190 [2022-11-20 21:04:28,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:28,758 INFO L225 Difference]: With dead ends: 13166 [2022-11-20 21:04:28,762 INFO L226 Difference]: Without dead ends: 7908 [2022-11-20 21:04:28,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 188 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 21:04:28,788 INFO L413 NwaCegarLoop]: 2902 mSDtfsCounter, 1349 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 5059 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 21:04:28,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 5059 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 21:04:28,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2022-11-20 21:04:29,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 7902. [2022-11-20 21:04:29,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7902 states, 5428 states have (on average 1.2505526897568164) internal successors, (6788), 5534 states have internal predecessors, (6788), 1982 states have call successors, (1982), 493 states have call predecessors, (1982), 491 states have return successors, (1995), 1951 states have call predecessors, (1995), 1982 states have call successors, (1995) [2022-11-20 21:04:29,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7902 states to 7902 states and 10765 transitions. [2022-11-20 21:04:29,350 INFO L78 Accepts]: Start accepts. Automaton has 7902 states and 10765 transitions. Word has length 190 [2022-11-20 21:04:29,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:29,352 INFO L495 AbstractCegarLoop]: Abstraction has 7902 states and 10765 transitions. [2022-11-20 21:04:29,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 21:04:29,353 INFO L276 IsEmpty]: Start isEmpty. Operand 7902 states and 10765 transitions. [2022-11-20 21:04:29,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-20 21:04:29,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:29,362 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:04:29,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 21:04:29,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:29,583 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:29,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:29,584 INFO L85 PathProgramCache]: Analyzing trace with hash -577524580, now seen corresponding path program 1 times [2022-11-20 21:04:29,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:04:29,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432548402] [2022-11-20 21:04:29,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:29,586 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 21:04:29,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:04:29,591 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:29,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:31,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 1830 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 21:04:31,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:04:31,526 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-20 21:04:31,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:04:31,533 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:04:31,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432548402] [2022-11-20 21:04:31,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432548402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:31,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:31,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:04:31,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233220895] [2022-11-20 21:04:31,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:31,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:04:31,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:04:31,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:04:31,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:04:31,537 INFO L87 Difference]: Start difference. First operand 7902 states and 10765 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-20 21:04:32,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:32,685 INFO L93 Difference]: Finished difference Result 18439 states and 25118 transitions. [2022-11-20 21:04:32,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:04:32,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 250 [2022-11-20 21:04:32,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:32,774 INFO L225 Difference]: With dead ends: 18439 [2022-11-20 21:04:32,774 INFO L226 Difference]: Without dead ends: 10558 [2022-11-20 21:04:32,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 248 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 21:04:32,807 INFO L413 NwaCegarLoop]: 3555 mSDtfsCounter, 1345 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 5701 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 21:04:32,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 5701 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 21:04:32,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10558 states. [2022-11-20 21:04:33,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10558 to 10552. [2022-11-20 21:04:33,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10552 states, 7294 states have (on average 1.2525363312311488) internal successors, (9136), 7433 states have internal predecessors, (9136), 2584 states have call successors, (2584), 675 states have call predecessors, (2584), 673 states have return successors, (2597), 2549 states have call predecessors, (2597), 2584 states have call successors, (2597) [2022-11-20 21:04:33,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10552 states to 10552 states and 14317 transitions. [2022-11-20 21:04:33,505 INFO L78 Accepts]: Start accepts. Automaton has 10552 states and 14317 transitions. Word has length 250 [2022-11-20 21:04:33,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:33,506 INFO L495 AbstractCegarLoop]: Abstraction has 10552 states and 14317 transitions. [2022-11-20 21:04:33,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-20 21:04:33,507 INFO L276 IsEmpty]: Start isEmpty. Operand 10552 states and 14317 transitions. [2022-11-20 21:04:33,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-11-20 21:04:33,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:33,517 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 9, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:33,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:33,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:33,737 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:33,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:33,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1892382982, now seen corresponding path program 1 times [2022-11-20 21:04:33,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:04:33,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453747485] [2022-11-20 21:04:33,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:33,739 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 21:04:33,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:04:33,741 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:33,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:35,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 1970 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 21:04:35,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:04:35,660 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2022-11-20 21:04:35,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:04:35,661 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:04:35,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453747485] [2022-11-20 21:04:35,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453747485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:35,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:35,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:04:35,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261362964] [2022-11-20 21:04:35,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:35,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:04:35,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:04:35,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:04:35,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:04:35,664 INFO L87 Difference]: Start difference. First operand 10552 states and 14317 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-20 21:04:36,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:36,657 INFO L93 Difference]: Finished difference Result 23704 states and 32160 transitions. [2022-11-20 21:04:36,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:04:36,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 324 [2022-11-20 21:04:36,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:36,785 INFO L225 Difference]: With dead ends: 23704 [2022-11-20 21:04:36,786 INFO L226 Difference]: Without dead ends: 13173 [2022-11-20 21:04:36,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 322 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 21:04:36,832 INFO L413 NwaCegarLoop]: 3556 mSDtfsCounter, 1349 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 5709 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 21:04:36,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 5709 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 21:04:36,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13173 states. [2022-11-20 21:04:37,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13173 to 13167. [2022-11-20 21:04:37,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13167 states, 9138 states have (on average 1.2543226088859707) internal successors, (11462), 9310 states have internal predecessors, (11462), 3174 states have call successors, (3174), 856 states have call predecessors, (3174), 854 states have return successors, (3187), 3135 states have call predecessors, (3187), 3174 states have call successors, (3187) [2022-11-20 21:04:37,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13167 states to 13167 states and 17823 transitions. [2022-11-20 21:04:37,742 INFO L78 Accepts]: Start accepts. Automaton has 13167 states and 17823 transitions. Word has length 324 [2022-11-20 21:04:37,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:37,743 INFO L495 AbstractCegarLoop]: Abstraction has 13167 states and 17823 transitions. [2022-11-20 21:04:37,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-20 21:04:37,744 INFO L276 IsEmpty]: Start isEmpty. Operand 13167 states and 17823 transitions. [2022-11-20 21:04:37,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-11-20 21:04:37,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:37,754 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 9, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:37,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:37,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:37,978 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:37,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:37,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1371543416, now seen corresponding path program 1 times [2022-11-20 21:04:37,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:04:37,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944526618] [2022-11-20 21:04:37,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:37,981 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 21:04:37,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:04:37,983 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:38,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:40,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 1970 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 21:04:40,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:04:40,238 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2022-11-20 21:04:40,239 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:04:40,239 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:04:40,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944526618] [2022-11-20 21:04:40,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944526618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:40,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:40,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:04:40,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007961378] [2022-11-20 21:04:40,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:40,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:04:40,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:04:40,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:04:40,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:04:40,244 INFO L87 Difference]: Start difference. First operand 13167 states and 17823 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-20 21:04:41,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:41,518 INFO L93 Difference]: Finished difference Result 29501 states and 39948 transitions. [2022-11-20 21:04:41,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:04:41,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 324 [2022-11-20 21:04:41,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:41,607 INFO L225 Difference]: With dead ends: 29501 [2022-11-20 21:04:41,608 INFO L226 Difference]: Without dead ends: 16355 [2022-11-20 21:04:41,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 322 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 21:04:41,655 INFO L413 NwaCegarLoop]: 3679 mSDtfsCounter, 1697 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 5625 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 21:04:41,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 5625 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 21:04:41,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16355 states. [2022-11-20 21:04:42,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16355 to 16349. [2022-11-20 21:04:42,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16349 states, 11381 states have (on average 1.2554257095158599) internal successors, (14288), 11588 states have internal predecessors, (14288), 3896 states have call successors, (3896), 1073 states have call predecessors, (3896), 1071 states have return successors, (3909), 3851 states have call predecessors, (3909), 3896 states have call successors, (3909) [2022-11-20 21:04:42,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16349 states to 16349 states and 22093 transitions. [2022-11-20 21:04:42,887 INFO L78 Accepts]: Start accepts. Automaton has 16349 states and 22093 transitions. Word has length 324 [2022-11-20 21:04:42,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:42,888 INFO L495 AbstractCegarLoop]: Abstraction has 16349 states and 22093 transitions. [2022-11-20 21:04:42,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-20 21:04:42,889 INFO L276 IsEmpty]: Start isEmpty. Operand 16349 states and 22093 transitions. [2022-11-20 21:04:42,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-11-20 21:04:42,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:42,903 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 11, 11, 11, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:04:42,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:43,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:43,119 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:43,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:43,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1472855687, now seen corresponding path program 1 times [2022-11-20 21:04:43,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:04:43,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040418777] [2022-11-20 21:04:43,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:43,122 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 21:04:43,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:04:43,124 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:43,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:45,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 2090 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 21:04:45,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:04:45,255 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2022-11-20 21:04:45,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:04:45,255 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:04:45,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040418777] [2022-11-20 21:04:45,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040418777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:45,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:45,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:04:45,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884384393] [2022-11-20 21:04:45,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:45,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:04:45,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:04:45,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:04:45,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:04:45,259 INFO L87 Difference]: Start difference. First operand 16349 states and 22093 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-20 21:04:46,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:46,508 INFO L93 Difference]: Finished difference Result 35338 states and 47772 transitions. [2022-11-20 21:04:46,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:04:46,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 384 [2022-11-20 21:04:46,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:46,593 INFO L225 Difference]: With dead ends: 35338 [2022-11-20 21:04:46,594 INFO L226 Difference]: Without dead ends: 19010 [2022-11-20 21:04:46,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 382 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 21:04:46,640 INFO L413 NwaCegarLoop]: 3424 mSDtfsCounter, 1362 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 5577 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 21:04:46,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 5577 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 21:04:46,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19010 states. [2022-11-20 21:04:47,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19010 to 19004. [2022-11-20 21:04:47,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19004 states, 13261 states have (on average 1.2561646934620314) internal successors, (16658), 13501 states have internal predecessors, (16658), 4490 states have call successors, (4490), 1254 states have call predecessors, (4490), 1252 states have return successors, (4503), 4441 states have call predecessors, (4503), 4490 states have call successors, (4503) [2022-11-20 21:04:48,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19004 states to 19004 states and 25651 transitions. [2022-11-20 21:04:48,040 INFO L78 Accepts]: Start accepts. Automaton has 19004 states and 25651 transitions. Word has length 384 [2022-11-20 21:04:48,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:48,041 INFO L495 AbstractCegarLoop]: Abstraction has 19004 states and 25651 transitions. [2022-11-20 21:04:48,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-20 21:04:48,042 INFO L276 IsEmpty]: Start isEmpty. Operand 19004 states and 25651 transitions. [2022-11-20 21:04:48,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-11-20 21:04:48,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:48,060 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 11, 11, 11, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:04:48,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:48,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:48,275 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:48,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:48,276 INFO L85 PathProgramCache]: Analyzing trace with hash 441814789, now seen corresponding path program 1 times [2022-11-20 21:04:48,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:04:48,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788725801] [2022-11-20 21:04:48,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:48,280 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 21:04:48,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:04:48,281 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:48,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:50,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 2090 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 21:04:50,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:04:50,610 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2022-11-20 21:04:50,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:04:50,611 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:04:50,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788725801] [2022-11-20 21:04:50,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1788725801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:50,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:50,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 21:04:50,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549607465] [2022-11-20 21:04:50,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:50,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:04:50,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:04:50,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:04:50,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:04:50,614 INFO L87 Difference]: Start difference. First operand 19004 states and 25651 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-20 21:04:51,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:04:51,924 INFO L93 Difference]: Finished difference Result 40600 states and 54828 transitions. [2022-11-20 21:04:51,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:04:51,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 384 [2022-11-20 21:04:51,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:04:52,057 INFO L225 Difference]: With dead ends: 40600 [2022-11-20 21:04:52,058 INFO L226 Difference]: Without dead ends: 21617 [2022-11-20 21:04:52,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 382 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 21:04:52,135 INFO L413 NwaCegarLoop]: 3556 mSDtfsCounter, 1349 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 5708 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 21:04:52,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1349 Valid, 5708 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 21:04:52,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21617 states. [2022-11-20 21:04:53,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21617 to 21611. [2022-11-20 21:04:53,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21611 states, 15101 states have (on average 1.256870405933382) internal successors, (18980), 15374 states have internal predecessors, (18980), 5080 states have call successors, (5080), 1431 states have call predecessors, (5080), 1429 states have return successors, (5093), 5027 states have call predecessors, (5093), 5080 states have call successors, (5093) [2022-11-20 21:04:53,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21611 states to 21611 states and 29153 transitions. [2022-11-20 21:04:53,448 INFO L78 Accepts]: Start accepts. Automaton has 21611 states and 29153 transitions. Word has length 384 [2022-11-20 21:04:53,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:04:53,449 INFO L495 AbstractCegarLoop]: Abstraction has 21611 states and 29153 transitions. [2022-11-20 21:04:53,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-20 21:04:53,449 INFO L276 IsEmpty]: Start isEmpty. Operand 21611 states and 29153 transitions. [2022-11-20 21:04:53,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2022-11-20 21:04:53,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:04:53,468 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:04:53,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:53,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:53,688 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:04:53,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:04:53,688 INFO L85 PathProgramCache]: Analyzing trace with hash -535802880, now seen corresponding path program 1 times [2022-11-20 21:04:53,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:04:53,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880544858] [2022-11-20 21:04:53,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:04:53,690 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 21:04:53,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:04:53,691 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:53,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:04:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:04:55,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 2144 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 21:04:55,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:04:56,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 347 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2022-11-20 21:04:56,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:04:56,184 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:04:56,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880544858] [2022-11-20 21:04:56,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880544858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:04:56,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:04:56,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 21:04:56,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875355630] [2022-11-20 21:04:56,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:04:56,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 21:04:56,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:04:56,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 21:04:56,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-20 21:04:56,188 INFO L87 Difference]: Start difference. First operand 21611 states and 29153 transitions. Second operand has 12 states, 11 states have (on average 17.363636363636363) internal successors, (191), 11 states have internal predecessors, (191), 5 states have call successors, (50), 3 states have call predecessors, (50), 5 states have return successors, (45), 5 states have call predecessors, (45), 5 states have call successors, (45) [2022-11-20 21:05:10,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:05:10,232 INFO L93 Difference]: Finished difference Result 65363 states and 88808 transitions. [2022-11-20 21:05:10,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 21:05:10,233 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 17.363636363636363) internal successors, (191), 11 states have internal predecessors, (191), 5 states have call successors, (50), 3 states have call predecessors, (50), 5 states have return successors, (45), 5 states have call predecessors, (45), 5 states have call successors, (45) Word has length 425 [2022-11-20 21:05:10,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:05:10,437 INFO L225 Difference]: With dead ends: 65363 [2022-11-20 21:05:10,437 INFO L226 Difference]: Without dead ends: 43713 [2022-11-20 21:05:10,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2022-11-20 21:05:10,507 INFO L413 NwaCegarLoop]: 3858 mSDtfsCounter, 4222 mSDsluCounter, 33873 mSDsCounter, 0 mSdLazyCounter, 2993 mSolverCounterSat, 693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4247 SdHoareTripleChecker+Valid, 37731 SdHoareTripleChecker+Invalid, 3686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 693 IncrementalHoareTripleChecker+Valid, 2993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-20 21:05:10,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4247 Valid, 37731 Invalid, 3686 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [693 Valid, 2993 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-11-20 21:05:10,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43713 states. [2022-11-20 21:05:13,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43713 to 38387. [2022-11-20 21:05:13,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38387 states, 26882 states have (on average 1.2593557027006919) internal successors, (33854), 27361 states have internal predecessors, (33854), 8961 states have call successors, (8961), 2545 states have call predecessors, (8961), 2543 states have return successors, (8976), 8878 states have call predecessors, (8976), 8961 states have call successors, (8976) [2022-11-20 21:05:13,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38387 states to 38387 states and 51791 transitions. [2022-11-20 21:05:13,503 INFO L78 Accepts]: Start accepts. Automaton has 38387 states and 51791 transitions. Word has length 425 [2022-11-20 21:05:13,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:05:13,505 INFO L495 AbstractCegarLoop]: Abstraction has 38387 states and 51791 transitions. [2022-11-20 21:05:13,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 17.363636363636363) internal successors, (191), 11 states have internal predecessors, (191), 5 states have call successors, (50), 3 states have call predecessors, (50), 5 states have return successors, (45), 5 states have call predecessors, (45), 5 states have call successors, (45) [2022-11-20 21:05:13,506 INFO L276 IsEmpty]: Start isEmpty. Operand 38387 states and 51791 transitions. [2022-11-20 21:05:13,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2022-11-20 21:05:13,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:05:13,519 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 14, 14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:05:13,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:05:13,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:05:13,736 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:05:13,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:05:13,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1677953250, now seen corresponding path program 1 times [2022-11-20 21:05:13,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:05:13,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429049333] [2022-11-20 21:05:13,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:05:13,739 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 21:05:13,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:05:13,740 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:05:13,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:05:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:05:16,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 2679 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 21:05:16,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:05:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1212 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2022-11-20 21:05:16,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:05:16,703 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:05:16,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429049333] [2022-11-20 21:05:16,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1429049333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:05:16,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:05:16,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 21:05:16,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868106286] [2022-11-20 21:05:16,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:05:16,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 21:05:16,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:05:16,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 21:05:16,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 21:05:16,708 INFO L87 Difference]: Start difference. First operand 38387 states and 51791 transitions. Second operand has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 21:05:21,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:05:21,972 INFO L93 Difference]: Finished difference Result 90617 states and 124169 transitions. [2022-11-20 21:05:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 21:05:21,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 459 [2022-11-20 21:05:21,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:05:22,357 INFO L225 Difference]: With dead ends: 90617 [2022-11-20 21:05:22,357 INFO L226 Difference]: Without dead ends: 52251 [2022-11-20 21:05:22,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 21:05:22,459 INFO L413 NwaCegarLoop]: 3134 mSDtfsCounter, 2542 mSDsluCounter, 7677 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 674 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2543 SdHoareTripleChecker+Valid, 10811 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 674 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 21:05:22,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2543 Valid, 10811 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [674 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 21:05:22,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52251 states. [2022-11-20 21:05:25,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52251 to 38399. [2022-11-20 21:05:25,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38399 states, 26894 states have (on average 1.2592399791775117) internal successors, (33866), 27373 states have internal predecessors, (33866), 8961 states have call successors, (8961), 2545 states have call predecessors, (8961), 2543 states have return successors, (8976), 8878 states have call predecessors, (8976), 8961 states have call successors, (8976) [2022-11-20 21:05:25,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38399 states to 38399 states and 51803 transitions. [2022-11-20 21:05:25,962 INFO L78 Accepts]: Start accepts. Automaton has 38399 states and 51803 transitions. Word has length 459 [2022-11-20 21:05:25,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:05:25,963 INFO L495 AbstractCegarLoop]: Abstraction has 38399 states and 51803 transitions. [2022-11-20 21:05:25,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-20 21:05:25,963 INFO L276 IsEmpty]: Start isEmpty. Operand 38399 states and 51803 transitions. [2022-11-20 21:05:25,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-11-20 21:05:25,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:05:25,977 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 16, 16, 16, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:05:26,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:05:26,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:05:26,203 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 21:05:26,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:05:26,204 INFO L85 PathProgramCache]: Analyzing trace with hash 2135471611, now seen corresponding path program 1 times [2022-11-20 21:05:26,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 21:05:26,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548813869] [2022-11-20 21:05:26,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:05:26,207 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 21:05:26,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 21:05:26,208 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:05:26,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09ef847e-33e1-4606-8252-7b2c7c07bf7e/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 21:05:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:05:28,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 2728 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 21:05:28,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 21:05:28,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1353 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2022-11-20 21:05:28,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 21:05:28,928 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 21:05:28,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1548813869] [2022-11-20 21:05:28,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1548813869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:05:28,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:05:28,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 21:05:28,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032313453] [2022-11-20 21:05:28,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:05:28,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 21:05:28,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 21:05:28,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 21:05:28,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 21:05:28,932 INFO L87 Difference]: Start difference. First operand 38399 states and 51803 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49)