./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix027_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix027_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh --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 32bit --witnessprinter.graph.data.programhash 4f758b611596923134c7292307712c4e6636a1a24449562e0f1ec6ef2697b141 --- 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-2329fc7 [2022-12-14 06:25:37,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:25:37,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:25:37,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:25:37,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:25:37,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:25:37,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:25:37,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:25:37,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:25:37,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:25:37,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:25:37,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:25:37,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:25:37,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:25:37,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:25:37,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:25:37,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:25:37,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:25:37,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:25:37,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:25:37,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:25:37,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:25:37,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:25:37,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:25:37,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:25:37,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:25:37,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:25:37,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:25:37,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:25:37,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:25:37,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:25:37,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:25:37,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:25:37,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:25:37,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:25:37,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:25:37,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:25:37,434 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:25:37,434 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:25:37,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:25:37,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:25:37,436 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:25:37,450 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:25:37,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:25:37,450 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:25:37,450 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:25:37,451 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:25:37,451 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:25:37,451 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:25:37,451 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:25:37,451 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:25:37,451 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:25:37,451 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:25:37,451 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:25:37,451 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:25:37,452 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:25:37,452 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:25:37,452 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:25:37,452 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:25:37,452 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:25:37,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:25:37,453 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:25:37,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:25:37,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:25:37,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:25:37,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:25:37,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:25:37,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:25:37,453 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:25:37,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:25:37,453 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:25:37,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:25:37,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:25:37,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:25:37,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:25:37,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:25:37,454 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:25:37,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:25:37,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:25:37,454 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:25:37,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:25:37,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:25:37,455 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:25:37,455 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_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f758b611596923134c7292307712c4e6636a1a24449562e0f1ec6ef2697b141 [2022-12-14 06:25:37,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:25:37,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:25:37,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:25:37,648 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:25:37,649 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:25:37,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-wmm/mix027_power.opt_pso.opt_rmo.opt.i [2022-12-14 06:25:40,265 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:25:40,419 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:25:40,420 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/sv-benchmarks/c/pthread-wmm/mix027_power.opt_pso.opt_rmo.opt.i [2022-12-14 06:25:40,429 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh/data/00540fc8b/93d340388782498d918898adfa6a6bc5/FLAG92a39d74a [2022-12-14 06:25:40,440 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh/data/00540fc8b/93d340388782498d918898adfa6a6bc5 [2022-12-14 06:25:40,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:25:40,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:25:40,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:25:40,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:25:40,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:25:40,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:25:40" (1/1) ... [2022-12-14 06:25:40,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43cbf6e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:40, skipping insertion in model container [2022-12-14 06:25:40,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:25:40" (1/1) ... [2022-12-14 06:25:40,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:25:40,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:25:40,610 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_4d2b2815-82b3-493a-a865-ba146411f53a/sv-benchmarks/c/pthread-wmm/mix027_power.opt_pso.opt_rmo.opt.i[966,979] [2022-12-14 06:25:40,697 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,697 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,697 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,698 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,698 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,698 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,698 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,699 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,712 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,712 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,712 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,713 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,716 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:25:40,750 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:25:40,761 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_4d2b2815-82b3-493a-a865-ba146411f53a/sv-benchmarks/c/pthread-wmm/mix027_power.opt_pso.opt_rmo.opt.i[966,979] [2022-12-14 06:25:40,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,786 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,787 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,788 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,789 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,796 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,797 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,799 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,802 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,802 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,814 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 06:25:40,814 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 06:25:40,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:25:40,855 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:25:40,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:40 WrapperNode [2022-12-14 06:25:40,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:25:40,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:25:40,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:25:40,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:25:40,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:40" (1/1) ... [2022-12-14 06:25:40,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:40" (1/1) ... [2022-12-14 06:25:40,894 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2022-12-14 06:25:40,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:25:40,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:25:40,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:25:40,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:25:40,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:40" (1/1) ... [2022-12-14 06:25:40,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:40" (1/1) ... [2022-12-14 06:25:40,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:40" (1/1) ... [2022-12-14 06:25:40,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:40" (1/1) ... [2022-12-14 06:25:40,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:40" (1/1) ... [2022-12-14 06:25:40,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:40" (1/1) ... [2022-12-14 06:25:40,911 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:40" (1/1) ... [2022-12-14 06:25:40,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:40" (1/1) ... [2022-12-14 06:25:40,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:25:40,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:25:40,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:25:40,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:25:40,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:40" (1/1) ... [2022-12-14 06:25:40,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:25:40,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:25:40,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:25:40,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:25:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:25:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 06:25:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:25:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:25:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:25:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-14 06:25:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-14 06:25:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-14 06:25:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-14 06:25:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-14 06:25:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-14 06:25:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-14 06:25:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-14 06:25:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:25:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 06:25:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:25:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:25:40,967 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 06:25:41,083 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:25:41,084 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:25:41,340 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:25:41,419 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:25:41,419 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:25:41,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:25:41 BoogieIcfgContainer [2022-12-14 06:25:41,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:25:41,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:25:41,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:25:41,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:25:41,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:25:40" (1/3) ... [2022-12-14 06:25:41,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678f6202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:25:41, skipping insertion in model container [2022-12-14 06:25:41,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:25:40" (2/3) ... [2022-12-14 06:25:41,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678f6202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:25:41, skipping insertion in model container [2022-12-14 06:25:41,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:25:41" (3/3) ... [2022-12-14 06:25:41,427 INFO L112 eAbstractionObserver]: Analyzing ICFG mix027_power.opt_pso.opt_rmo.opt.i [2022-12-14 06:25:41,433 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 06:25:41,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:25:41,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 06:25:41,441 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 06:25:41,483 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 06:25:41,507 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 06:25:41,517 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 135 transitions, 290 flow [2022-12-14 06:25:41,519 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 135 transitions, 290 flow [2022-12-14 06:25:41,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 135 transitions, 290 flow [2022-12-14 06:25:41,557 INFO L130 PetriNetUnfolder]: 2/131 cut-off events. [2022-12-14 06:25:41,557 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 06:25:41,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 131 events. 2/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-12-14 06:25:41,563 INFO L119 LiptonReduction]: Number of co-enabled transitions 3076 [2022-12-14 06:25:44,701 INFO L134 LiptonReduction]: Checked pairs total: 8052 [2022-12-14 06:25:44,702 INFO L136 LiptonReduction]: Total number of compositions: 117 [2022-12-14 06:25:44,709 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 33 transitions, 86 flow [2022-12-14 06:25:44,861 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2730 states, 2727 states have (on average 3.919325265859919) internal successors, (10688), 2729 states have internal predecessors, (10688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:44,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:25:44,886 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;@718ae02f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:25:44,886 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-14 06:25:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 2730 states, 2727 states have (on average 3.919325265859919) internal successors, (10688), 2729 states have internal predecessors, (10688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:44,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 06:25:44,903 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:44,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:44,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:25:44,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:44,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1237643445, now seen corresponding path program 1 times [2022-12-14 06:25:44,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:44,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154594031] [2022-12-14 06:25:44,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:44,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:45,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:25:45,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:25:45,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154594031] [2022-12-14 06:25:45,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154594031] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:25:45,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:25:45,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:25:45,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135160729] [2022-12-14 06:25:45,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:25:45,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:25:45,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:25:45,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:25:45,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:25:45,300 INFO L87 Difference]: Start difference. First operand has 2730 states, 2727 states have (on average 3.919325265859919) internal successors, (10688), 2729 states have internal predecessors, (10688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:45,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:25:45,408 INFO L93 Difference]: Finished difference Result 2218 states and 8400 transitions. [2022-12-14 06:25:45,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:25:45,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 06:25:45,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:25:45,431 INFO L225 Difference]: With dead ends: 2218 [2022-12-14 06:25:45,431 INFO L226 Difference]: Without dead ends: 2122 [2022-12-14 06:25:45,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:25:45,434 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:25:45,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:25:45,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2022-12-14 06:25:45,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 2122. [2022-12-14 06:25:45,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2122 states, 2121 states have (on average 3.8095238095238093) internal successors, (8080), 2121 states have internal predecessors, (8080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:45,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 8080 transitions. [2022-12-14 06:25:45,531 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 8080 transitions. Word has length 7 [2022-12-14 06:25:45,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:25:45,532 INFO L495 AbstractCegarLoop]: Abstraction has 2122 states and 8080 transitions. [2022-12-14 06:25:45,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:45,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 8080 transitions. [2022-12-14 06:25:45,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 06:25:45,533 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:45,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:45,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:25:45,534 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:25:45,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:45,534 INFO L85 PathProgramCache]: Analyzing trace with hash 197365871, now seen corresponding path program 1 times [2022-12-14 06:25:45,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:45,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939896623] [2022-12-14 06:25:45,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:45,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:45,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:25:45,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:25:45,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939896623] [2022-12-14 06:25:45,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939896623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:25:45,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:25:45,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:25:45,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125877142] [2022-12-14 06:25:45,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:25:45,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:25:45,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:25:45,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:25:45,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:25:45,725 INFO L87 Difference]: Start difference. First operand 2122 states and 8080 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:45,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:25:45,823 INFO L93 Difference]: Finished difference Result 3682 states and 13469 transitions. [2022-12-14 06:25:45,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:25:45,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 06:25:45,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:25:45,844 INFO L225 Difference]: With dead ends: 3682 [2022-12-14 06:25:45,844 INFO L226 Difference]: Without dead ends: 3394 [2022-12-14 06:25:45,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:25:45,845 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:25:45,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:25:45,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3394 states. [2022-12-14 06:25:45,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3394 to 3026. [2022-12-14 06:25:45,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3026 states, 3025 states have (on average 3.722314049586777) internal successors, (11260), 3025 states have internal predecessors, (11260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:45,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3026 states to 3026 states and 11260 transitions. [2022-12-14 06:25:45,947 INFO L78 Accepts]: Start accepts. Automaton has 3026 states and 11260 transitions. Word has length 11 [2022-12-14 06:25:45,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:25:45,948 INFO L495 AbstractCegarLoop]: Abstraction has 3026 states and 11260 transitions. [2022-12-14 06:25:45,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:45,948 INFO L276 IsEmpty]: Start isEmpty. Operand 3026 states and 11260 transitions. [2022-12-14 06:25:45,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 06:25:45,949 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:45,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:45,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:25:45,950 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:25:45,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:45,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1941457383, now seen corresponding path program 1 times [2022-12-14 06:25:45,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:45,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873327227] [2022-12-14 06:25:45,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:45,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:46,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:25:46,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:25:46,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873327227] [2022-12-14 06:25:46,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873327227] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:25:46,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:25:46,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:25:46,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823201199] [2022-12-14 06:25:46,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:25:46,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:25:46,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:25:46,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:25:46,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:25:46,127 INFO L87 Difference]: Start difference. First operand 3026 states and 11260 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:46,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:25:46,254 INFO L93 Difference]: Finished difference Result 3142 states and 11415 transitions. [2022-12-14 06:25:46,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:25:46,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 06:25:46,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:25:46,277 INFO L225 Difference]: With dead ends: 3142 [2022-12-14 06:25:46,277 INFO L226 Difference]: Without dead ends: 3142 [2022-12-14 06:25:46,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:25:46,278 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 25 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:25:46,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 11 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:25:46,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3142 states. [2022-12-14 06:25:46,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3142 to 2442. [2022-12-14 06:25:46,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2442 states, 2441 states have (on average 3.709954936501434) internal successors, (9056), 2441 states have internal predecessors, (9056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:46,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 9056 transitions. [2022-12-14 06:25:46,390 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 9056 transitions. Word has length 12 [2022-12-14 06:25:46,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:25:46,391 INFO L495 AbstractCegarLoop]: Abstraction has 2442 states and 9056 transitions. [2022-12-14 06:25:46,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:46,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 9056 transitions. [2022-12-14 06:25:46,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 06:25:46,394 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:46,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:46,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:25:46,394 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:25:46,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:46,395 INFO L85 PathProgramCache]: Analyzing trace with hash 688456239, now seen corresponding path program 1 times [2022-12-14 06:25:46,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:46,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165954362] [2022-12-14 06:25:46,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:46,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:46,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:25:46,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:25:46,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165954362] [2022-12-14 06:25:46,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165954362] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:25:46,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:25:46,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:25:46,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946863099] [2022-12-14 06:25:46,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:25:46,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:25:46,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:25:46,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:25:46,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:25:46,519 INFO L87 Difference]: Start difference. First operand 2442 states and 9056 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:46,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:25:46,639 INFO L93 Difference]: Finished difference Result 3044 states and 11021 transitions. [2022-12-14 06:25:46,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:25:46,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 06:25:46,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:25:46,671 INFO L225 Difference]: With dead ends: 3044 [2022-12-14 06:25:46,672 INFO L226 Difference]: Without dead ends: 3044 [2022-12-14 06:25:46,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:25:46,673 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:25:46,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 9 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:25:46,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2022-12-14 06:25:46,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 2330. [2022-12-14 06:25:46,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2330 states, 2329 states have (on average 3.6839845427221984) internal successors, (8580), 2329 states have internal predecessors, (8580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:46,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 8580 transitions. [2022-12-14 06:25:46,762 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 8580 transitions. Word has length 13 [2022-12-14 06:25:46,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:25:46,762 INFO L495 AbstractCegarLoop]: Abstraction has 2330 states and 8580 transitions. [2022-12-14 06:25:46,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:46,762 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 8580 transitions. [2022-12-14 06:25:46,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 06:25:46,765 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:46,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:46,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 06:25:46,765 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:25:46,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:46,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1726323367, now seen corresponding path program 1 times [2022-12-14 06:25:46,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:46,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386609942] [2022-12-14 06:25:46,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:46,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:46,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:25:46,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:25:46,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386609942] [2022-12-14 06:25:46,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386609942] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:25:46,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:25:46,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:25:46,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867565726] [2022-12-14 06:25:46,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:25:46,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:25:46,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:25:46,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:25:46,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:25:46,929 INFO L87 Difference]: Start difference. First operand 2330 states and 8580 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:47,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:25:47,041 INFO L93 Difference]: Finished difference Result 2414 states and 8042 transitions. [2022-12-14 06:25:47,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:25:47,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 06:25:47,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:25:47,049 INFO L225 Difference]: With dead ends: 2414 [2022-12-14 06:25:47,049 INFO L226 Difference]: Without dead ends: 1798 [2022-12-14 06:25:47,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:25:47,050 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 37 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:25:47,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 20 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:25:47,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2022-12-14 06:25:47,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1798. [2022-12-14 06:25:47,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1797 states have (on average 3.309961046188091) internal successors, (5948), 1797 states have internal predecessors, (5948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:47,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 5948 transitions. [2022-12-14 06:25:47,116 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 5948 transitions. Word has length 14 [2022-12-14 06:25:47,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:25:47,116 INFO L495 AbstractCegarLoop]: Abstraction has 1798 states and 5948 transitions. [2022-12-14 06:25:47,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:47,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 5948 transitions. [2022-12-14 06:25:47,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 06:25:47,120 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:47,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:47,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 06:25:47,121 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:25:47,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:47,121 INFO L85 PathProgramCache]: Analyzing trace with hash -475451693, now seen corresponding path program 1 times [2022-12-14 06:25:47,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:47,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080214095] [2022-12-14 06:25:47,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:47,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:47,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:25:47,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:25:47,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080214095] [2022-12-14 06:25:47,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080214095] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:25:47,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:25:47,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:25:47,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195584523] [2022-12-14 06:25:47,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:25:47,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:25:47,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:25:47,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:25:47,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:25:47,286 INFO L87 Difference]: Start difference. First operand 1798 states and 5948 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:47,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:25:47,396 INFO L93 Difference]: Finished difference Result 2854 states and 9160 transitions. [2022-12-14 06:25:47,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:25:47,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-12-14 06:25:47,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:25:47,405 INFO L225 Difference]: With dead ends: 2854 [2022-12-14 06:25:47,405 INFO L226 Difference]: Without dead ends: 2174 [2022-12-14 06:25:47,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:25:47,406 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 32 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:25:47,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 8 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:25:47,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2022-12-14 06:25:47,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 1618. [2022-12-14 06:25:47,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1618 states, 1617 states have (on average 3.1750154607297465) internal successors, (5134), 1617 states have internal predecessors, (5134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:47,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1618 states to 1618 states and 5134 transitions. [2022-12-14 06:25:47,438 INFO L78 Accepts]: Start accepts. Automaton has 1618 states and 5134 transitions. Word has length 16 [2022-12-14 06:25:47,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:25:47,439 INFO L495 AbstractCegarLoop]: Abstraction has 1618 states and 5134 transitions. [2022-12-14 06:25:47,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:47,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states and 5134 transitions. [2022-12-14 06:25:47,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 06:25:47,440 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:47,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:47,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 06:25:47,441 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:25:47,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:47,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1605552917, now seen corresponding path program 1 times [2022-12-14 06:25:47,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:47,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788459150] [2022-12-14 06:25:47,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:47,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:47,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:25:47,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:25:47,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788459150] [2022-12-14 06:25:47,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788459150] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:25:47,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:25:47,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:25:47,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237792377] [2022-12-14 06:25:47,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:25:47,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:25:47,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:25:47,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:25:47,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:25:47,621 INFO L87 Difference]: Start difference. First operand 1618 states and 5134 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:47,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:25:47,733 INFO L93 Difference]: Finished difference Result 1398 states and 4041 transitions. [2022-12-14 06:25:47,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:25:47,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-12-14 06:25:47,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:25:47,736 INFO L225 Difference]: With dead ends: 1398 [2022-12-14 06:25:47,736 INFO L226 Difference]: Without dead ends: 1050 [2022-12-14 06:25:47,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:25:47,737 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 62 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:25:47,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 28 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:25:47,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2022-12-14 06:25:47,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1044. [2022-12-14 06:25:47,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 1043 states have (on average 2.8350910834132312) internal successors, (2957), 1043 states have internal predecessors, (2957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:47,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 2957 transitions. [2022-12-14 06:25:47,760 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 2957 transitions. Word has length 16 [2022-12-14 06:25:47,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:25:47,761 INFO L495 AbstractCegarLoop]: Abstraction has 1044 states and 2957 transitions. [2022-12-14 06:25:47,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:47,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 2957 transitions. [2022-12-14 06:25:47,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 06:25:47,763 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:47,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:47,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 06:25:47,763 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:25:47,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:47,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1979192775, now seen corresponding path program 1 times [2022-12-14 06:25:47,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:47,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905722461] [2022-12-14 06:25:47,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:47,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:47,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:25:47,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:25:47,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905722461] [2022-12-14 06:25:47,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905722461] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:25:47,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:25:47,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 06:25:47,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824676436] [2022-12-14 06:25:47,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:25:47,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 06:25:47,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:25:47,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 06:25:47,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 06:25:47,979 INFO L87 Difference]: Start difference. First operand 1044 states and 2957 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:48,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:25:48,118 INFO L93 Difference]: Finished difference Result 912 states and 2541 transitions. [2022-12-14 06:25:48,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:25:48,118 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-12-14 06:25:48,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:25:48,121 INFO L225 Difference]: With dead ends: 912 [2022-12-14 06:25:48,121 INFO L226 Difference]: Without dead ends: 773 [2022-12-14 06:25:48,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:25:48,121 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 66 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:25:48,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 34 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:25:48,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-12-14 06:25:48,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 737. [2022-12-14 06:25:48,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 736 states have (on average 2.8260869565217392) internal successors, (2080), 736 states have internal predecessors, (2080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:48,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 2080 transitions. [2022-12-14 06:25:48,132 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 2080 transitions. Word has length 19 [2022-12-14 06:25:48,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:25:48,132 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 2080 transitions. [2022-12-14 06:25:48,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:48,132 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 2080 transitions. [2022-12-14 06:25:48,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:25:48,135 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:48,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:48,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 06:25:48,135 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:25:48,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:48,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1961842895, now seen corresponding path program 1 times [2022-12-14 06:25:48,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:48,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906199230] [2022-12-14 06:25:48,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:48,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:48,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:48,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:25:48,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:25:48,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906199230] [2022-12-14 06:25:48,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906199230] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:25:48,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:25:48,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:25:48,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048201464] [2022-12-14 06:25:48,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:25:48,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 06:25:48,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:25:48,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 06:25:48,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:25:48,337 INFO L87 Difference]: Start difference. First operand 737 states and 2080 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:48,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:25:48,503 INFO L93 Difference]: Finished difference Result 1196 states and 3319 transitions. [2022-12-14 06:25:48,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:25:48,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:25:48,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:25:48,507 INFO L225 Difference]: With dead ends: 1196 [2022-12-14 06:25:48,507 INFO L226 Difference]: Without dead ends: 836 [2022-12-14 06:25:48,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:25:48,507 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 44 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:25:48,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 13 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:25:48,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2022-12-14 06:25:48,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 634. [2022-12-14 06:25:48,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 633 states have (on average 2.6382306477093205) internal successors, (1670), 633 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:48,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1670 transitions. [2022-12-14 06:25:48,518 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1670 transitions. Word has length 22 [2022-12-14 06:25:48,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:25:48,518 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 1670 transitions. [2022-12-14 06:25:48,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:48,518 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1670 transitions. [2022-12-14 06:25:48,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 06:25:48,519 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:48,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:48,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 06:25:48,519 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:25:48,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:48,520 INFO L85 PathProgramCache]: Analyzing trace with hash -709828315, now seen corresponding path program 2 times [2022-12-14 06:25:48,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:48,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017861288] [2022-12-14 06:25:48,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:48,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:25:48,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:25:48,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017861288] [2022-12-14 06:25:48,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017861288] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:25:48,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:25:48,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 06:25:48,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442236112] [2022-12-14 06:25:48,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:25:48,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 06:25:48,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:25:48,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 06:25:48,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 06:25:48,692 INFO L87 Difference]: Start difference. First operand 634 states and 1670 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:48,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:25:48,827 INFO L93 Difference]: Finished difference Result 607 states and 1617 transitions. [2022-12-14 06:25:48,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 06:25:48,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 06:25:48,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:25:48,828 INFO L225 Difference]: With dead ends: 607 [2022-12-14 06:25:48,828 INFO L226 Difference]: Without dead ends: 178 [2022-12-14 06:25:48,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:25:48,829 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 76 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:25:48,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 19 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:25:48,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-12-14 06:25:48,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 160. [2022-12-14 06:25:48,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 2.3773584905660377) internal successors, (378), 159 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:48,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 378 transitions. [2022-12-14 06:25:48,832 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 378 transitions. Word has length 22 [2022-12-14 06:25:48,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:25:48,832 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 378 transitions. [2022-12-14 06:25:48,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:48,832 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 378 transitions. [2022-12-14 06:25:48,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 06:25:48,833 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:48,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:48,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 06:25:48,834 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:25:48,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:48,834 INFO L85 PathProgramCache]: Analyzing trace with hash 335084895, now seen corresponding path program 1 times [2022-12-14 06:25:48,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:48,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214623505] [2022-12-14 06:25:48,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:48,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:25:49,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:25:49,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:25:49,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214623505] [2022-12-14 06:25:49,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214623505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:25:49,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:25:49,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 06:25:49,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624324789] [2022-12-14 06:25:49,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:25:49,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 06:25:49,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:25:49,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 06:25:49,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-14 06:25:49,727 INFO L87 Difference]: Start difference. First operand 160 states and 378 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:49,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:25:49,885 INFO L93 Difference]: Finished difference Result 186 states and 432 transitions. [2022-12-14 06:25:49,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 06:25:49,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-12-14 06:25:49,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:25:49,886 INFO L225 Difference]: With dead ends: 186 [2022-12-14 06:25:49,887 INFO L226 Difference]: Without dead ends: 114 [2022-12-14 06:25:49,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 06:25:49,887 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 33 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:25:49,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 40 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:25:49,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-12-14 06:25:49,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-12-14 06:25:49,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 2.2123893805309733) internal successors, (250), 113 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:49,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 250 transitions. [2022-12-14 06:25:49,890 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 250 transitions. Word has length 26 [2022-12-14 06:25:49,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:25:49,890 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 250 transitions. [2022-12-14 06:25:49,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:25:49,890 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 250 transitions. [2022-12-14 06:25:49,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 06:25:49,890 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:25:49,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:49,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 06:25:49,891 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 06:25:49,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:25:49,891 INFO L85 PathProgramCache]: Analyzing trace with hash 514967839, now seen corresponding path program 2 times [2022-12-14 06:25:49,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:25:49,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161625492] [2022-12-14 06:25:49,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:25:49,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:25:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:25:49,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:25:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:25:50,008 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 06:25:50,008 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:25:50,009 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-14 06:25:50,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-14 06:25:50,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-14 06:25:50,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-12-14 06:25:50,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-12-14 06:25:50,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2022-12-14 06:25:50,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-14 06:25:50,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 06:25:50,014 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:25:50,019 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 06:25:50,019 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:25:50,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:25:50 BasicIcfg [2022-12-14 06:25:50,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:25:50,103 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:25:50,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:25:50,103 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:25:50,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:25:41" (3/4) ... [2022-12-14 06:25:50,106 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 06:25:50,177 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:25:50,177 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:25:50,178 INFO L158 Benchmark]: Toolchain (without parser) took 9735.00ms. Allocated memory was 125.8MB in the beginning and 264.2MB in the end (delta: 138.4MB). Free memory was 88.7MB in the beginning and 77.8MB in the end (delta: 10.9MB). Peak memory consumption was 151.4MB. Max. memory is 16.1GB. [2022-12-14 06:25:50,178 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 98.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:25:50,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.31ms. Allocated memory is still 125.8MB. Free memory was 88.7MB in the beginning and 61.1MB in the end (delta: 27.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-14 06:25:50,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.92ms. Allocated memory is still 125.8MB. Free memory was 61.1MB in the beginning and 58.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:25:50,179 INFO L158 Benchmark]: Boogie Preprocessor took 19.98ms. Allocated memory is still 125.8MB. Free memory was 58.6MB in the beginning and 56.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:25:50,179 INFO L158 Benchmark]: RCFGBuilder took 506.28ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 56.9MB in the beginning and 97.0MB in the end (delta: -40.1MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2022-12-14 06:25:50,180 INFO L158 Benchmark]: TraceAbstraction took 8680.50ms. Allocated memory was 151.0MB in the beginning and 264.2MB in the end (delta: 113.2MB). Free memory was 96.1MB in the beginning and 92.5MB in the end (delta: 3.6MB). Peak memory consumption was 116.6MB. Max. memory is 16.1GB. [2022-12-14 06:25:50,180 INFO L158 Benchmark]: Witness Printer took 74.29ms. Allocated memory is still 264.2MB. Free memory was 92.5MB in the beginning and 77.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 06:25:50,181 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 98.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.31ms. Allocated memory is still 125.8MB. Free memory was 88.7MB in the beginning and 61.1MB in the end (delta: 27.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.92ms. Allocated memory is still 125.8MB. Free memory was 61.1MB in the beginning and 58.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.98ms. Allocated memory is still 125.8MB. Free memory was 58.6MB in the beginning and 56.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 506.28ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 56.9MB in the beginning and 97.0MB in the end (delta: -40.1MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * TraceAbstraction took 8680.50ms. Allocated memory was 151.0MB in the beginning and 264.2MB in the end (delta: 113.2MB). Free memory was 96.1MB in the beginning and 92.5MB in the end (delta: 3.6MB). Peak memory consumption was 116.6MB. Max. memory is 16.1GB. * Witness Printer took 74.29ms. Allocated memory is still 264.2MB. Free memory was 92.5MB in the beginning and 77.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 146 PlacesBefore, 45 PlacesAfterwards, 135 TransitionsBefore, 33 TransitionsAfterwards, 3076 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 117 TotalNumberOfCompositions, 8052 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3868, independent: 3655, independent conditional: 0, independent unconditional: 3655, dependent: 213, dependent conditional: 0, dependent unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2184, independent: 2123, independent conditional: 0, independent unconditional: 2123, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2184, independent: 2090, independent conditional: 0, independent unconditional: 2090, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 94, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 273, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 226, dependent conditional: 0, dependent unconditional: 226, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3868, independent: 1532, independent conditional: 0, independent unconditional: 1532, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 2184, unknown conditional: 0, unknown unconditional: 2184] , Statistics on independence cache: Total cache size (in pairs): 214, Positive cache size: 189, Positive conditional cache size: 0, Positive unconditional cache size: 189, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p1_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L719] 0 _Bool main$tmp_guard0; [L720] 0 _Bool main$tmp_guard1; [L722] 0 int x = 0; [L724] 0 int y = 0; [L725] 0 _Bool y$flush_delayed; [L726] 0 int y$mem_tmp; [L727] 0 _Bool y$r_buff0_thd0; [L728] 0 _Bool y$r_buff0_thd1; [L729] 0 _Bool y$r_buff0_thd2; [L730] 0 _Bool y$r_buff0_thd3; [L731] 0 _Bool y$r_buff0_thd4; [L732] 0 _Bool y$r_buff1_thd0; [L733] 0 _Bool y$r_buff1_thd1; [L734] 0 _Bool y$r_buff1_thd2; [L735] 0 _Bool y$r_buff1_thd3; [L736] 0 _Bool y$r_buff1_thd4; [L737] 0 _Bool y$read_delayed; [L738] 0 int *y$read_delayed_var; [L739] 0 int y$w_buff0; [L740] 0 _Bool y$w_buff0_used; [L741] 0 int y$w_buff1; [L742] 0 _Bool y$w_buff1_used; [L744] 0 int z = 0; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L854] 0 pthread_t t717; [L855] FCALL, FORK 0 pthread_create(&t717, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t717, ((void *)0), P0, ((void *)0))=-3, t717={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L856] 0 pthread_t t718; [L857] FCALL, FORK 0 pthread_create(&t718, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t718, ((void *)0), P1, ((void *)0))=-2, t717={5:0}, t718={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L858] 0 pthread_t t719; [L859] FCALL, FORK 0 pthread_create(&t719, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t719, ((void *)0), P2, ((void *)0))=-1, t717={5:0}, t718={6:0}, t719={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L860] 0 pthread_t t720; [L861] FCALL, FORK 0 pthread_create(&t720, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t720, ((void *)0), P3, ((void *)0))=0, t717={5:0}, t718={6:0}, t719={7:0}, t720={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L793] 3 y$w_buff1 = y$w_buff0 [L794] 3 y$w_buff0 = 1 [L795] 3 y$w_buff1_used = y$w_buff0_used [L796] 3 y$w_buff0_used = (_Bool)1 [L797] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L797] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L798] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L799] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L800] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L801] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L802] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L803] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L806] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L823] 4 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L826] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L829] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L750] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L753] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L765] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L758] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L760] 1 return 0; [L768] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L769] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L770] 2 y$flush_delayed = weak$$choice2 [L771] 2 y$mem_tmp = y [L772] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L773] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L774] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L775] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L776] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L777] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L778] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L779] 2 __unbuffered_p1_EAX = y [L780] 2 y = y$flush_delayed ? y$mem_tmp : y [L781] 2 y$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L809] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L810] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L811] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L812] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L813] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L816] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L818] 3 return 0; [L786] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L788] 2 return 0; [L832] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L833] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L834] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L835] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L836] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L839] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L841] 4 return 0; [L863] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L865] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L865] RET 0 assume_abort_if_not(main$tmp_guard0) [L867] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L868] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L869] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L870] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L871] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t717={5:0}, t718={6:0}, t719={7:0}, t720={3:0}, weak$$choice0=49, weak$$choice2=255, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L874] 0 main$tmp_guard1 = !(x == 2 && z == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) [L876] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 857]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 861]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 170 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 422 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 422 mSDsluCounter, 195 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1102 IncrementalHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 72 mSDtfsCounter, 1102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3026occurred in iteration=2, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 2600 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 1496 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 06:25:50,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d2b2815-82b3-493a-a865-ba146411f53a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE