./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix051_tso.oepc.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_7481e4f9-6b82-44bc-9ce2-a11952937383/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7481e4f9-6b82-44bc-9ce2-a11952937383/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_7481e4f9-6b82-44bc-9ce2-a11952937383/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7481e4f9-6b82-44bc-9ce2-a11952937383/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix051_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7481e4f9-6b82-44bc-9ce2-a11952937383/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_7481e4f9-6b82-44bc-9ce2-a11952937383/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 798582ee4a09ede0f5c496225fe921dfd53b0dfd5ded797f7106b8b9ef24e798 --- 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 12:02:42,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:02:42,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:02:42,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:02:42,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:02:42,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:02:42,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:02:42,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:02:42,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:02:42,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:02:42,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:02:42,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:02:42,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:02:42,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:02:42,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:02:42,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:02:42,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:02:42,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:02:42,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:02:42,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:02:42,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:02:42,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:02:42,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:02:42,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:02:42,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:02:42,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:02:42,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:02:42,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:02:42,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:02:42,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:02:42,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:02:42,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:02:42,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:02:42,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:02:42,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:02:42,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:02:42,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:02:42,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:02:42,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:02:42,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:02:42,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:02:42,812 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7481e4f9-6b82-44bc-9ce2-a11952937383/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 12:02:42,832 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:02:42,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:02:42,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:02:42,833 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:02:42,834 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:02:42,834 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:02:42,834 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:02:42,834 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:02:42,835 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:02:42,835 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:02:42,835 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:02:42,835 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:02:42,835 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:02:42,835 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:02:42,836 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:02:42,849 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:02:42,849 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:02:42,849 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:02:42,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:02:42,850 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:02:42,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:02:42,850 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:02:42,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:02:42,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:02:42,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:02:42,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:02:42,851 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:02:42,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:02:42,851 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:02:42,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:02:42,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:02:42,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:02:42,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:02:42,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:02:42,852 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:02:42,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:02:42,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:02:42,853 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:02:42,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:02:42,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:02:42,853 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:02:42,854 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_7481e4f9-6b82-44bc-9ce2-a11952937383/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7481e4f9-6b82-44bc-9ce2-a11952937383/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 798582ee4a09ede0f5c496225fe921dfd53b0dfd5ded797f7106b8b9ef24e798 [2022-12-14 12:02:43,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:02:43,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:02:43,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:02:43,054 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:02:43,054 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:02:43,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7481e4f9-6b82-44bc-9ce2-a11952937383/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-wmm/mix051_tso.oepc.i [2022-12-14 12:02:45,578 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:02:45,792 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:02:45,792 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7481e4f9-6b82-44bc-9ce2-a11952937383/sv-benchmarks/c/pthread-wmm/mix051_tso.oepc.i [2022-12-14 12:02:45,804 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7481e4f9-6b82-44bc-9ce2-a11952937383/bin/utaipan-gh47qXpMRh/data/969b5b4c6/8813a5b268624e30825e67a02ee41fcb/FLAG81bf7c722 [2022-12-14 12:02:46,137 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7481e4f9-6b82-44bc-9ce2-a11952937383/bin/utaipan-gh47qXpMRh/data/969b5b4c6/8813a5b268624e30825e67a02ee41fcb [2022-12-14 12:02:46,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:02:46,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:02:46,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:02:46,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:02:46,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:02:46,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:02:46" (1/1) ... [2022-12-14 12:02:46,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@596c1300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:02:46, skipping insertion in model container [2022-12-14 12:02:46,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:02:46" (1/1) ... [2022-12-14 12:02:46,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:02:46,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:02:46,288 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_7481e4f9-6b82-44bc-9ce2-a11952937383/sv-benchmarks/c/pthread-wmm/mix051_tso.oepc.i[949,962] [2022-12-14 12:02:46,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,384 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:02:46,423 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:02:46,431 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_7481e4f9-6b82-44bc-9ce2-a11952937383/sv-benchmarks/c/pthread-wmm/mix051_tso.oepc.i[949,962] [2022-12-14 12:02:46,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:02:46,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:02:46,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:02:46,496 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:02:46,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:02:46 WrapperNode [2022-12-14 12:02:46,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:02:46,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:02:46,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:02:46,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:02:46,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:02:46" (1/1) ... [2022-12-14 12:02:46,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:02:46" (1/1) ... [2022-12-14 12:02:46,530 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 159 [2022-12-14 12:02:46,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:02:46,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:02:46,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:02:46,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:02:46,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:02:46" (1/1) ... [2022-12-14 12:02:46,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:02:46" (1/1) ... [2022-12-14 12:02:46,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:02:46" (1/1) ... [2022-12-14 12:02:46,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:02:46" (1/1) ... [2022-12-14 12:02:46,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:02:46" (1/1) ... [2022-12-14 12:02:46,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:02:46" (1/1) ... [2022-12-14 12:02:46,549 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:02:46" (1/1) ... [2022-12-14 12:02:46,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:02:46" (1/1) ... [2022-12-14 12:02:46,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:02:46,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:02:46,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:02:46,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:02:46,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:02:46" (1/1) ... [2022-12-14 12:02:46,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:02:46,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7481e4f9-6b82-44bc-9ce2-a11952937383/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:02:46,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7481e4f9-6b82-44bc-9ce2-a11952937383/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:02:46,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7481e4f9-6b82-44bc-9ce2-a11952937383/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:02:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:02:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 12:02:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:02:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:02:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:02:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-14 12:02:46,602 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-14 12:02:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-14 12:02:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-14 12:02:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-14 12:02:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-14 12:02:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-14 12:02:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-14 12:02:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:02:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 12:02:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:02:46,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:02:46,604 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 12:02:46,696 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:02:46,698 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:02:46,971 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:02:47,066 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:02:47,067 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 12:02:47,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:02:47 BoogieIcfgContainer [2022-12-14 12:02:47,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:02:47,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:02:47,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:02:47,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:02:47,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:02:46" (1/3) ... [2022-12-14 12:02:47,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7a19b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:02:47, skipping insertion in model container [2022-12-14 12:02:47,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:02:46" (2/3) ... [2022-12-14 12:02:47,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7a19b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:02:47, skipping insertion in model container [2022-12-14 12:02:47,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:02:47" (3/3) ... [2022-12-14 12:02:47,074 INFO L112 eAbstractionObserver]: Analyzing ICFG mix051_tso.oepc.i [2022-12-14 12:02:47,080 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 12:02:47,087 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:02:47,088 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 12:02:47,088 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 12:02:47,128 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 12:02:47,155 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 12:02:47,165 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 136 transitions, 292 flow [2022-12-14 12:02:47,167 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 136 transitions, 292 flow [2022-12-14 12:02:47,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 136 transitions, 292 flow [2022-12-14 12:02:47,206 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2022-12-14 12:02:47,206 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 12:02:47,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2022-12-14 12:02:47,212 INFO L119 LiptonReduction]: Number of co-enabled transitions 3276 [2022-12-14 12:02:50,483 INFO L134 LiptonReduction]: Checked pairs total: 9037 [2022-12-14 12:02:50,483 INFO L136 LiptonReduction]: Total number of compositions: 115 [2022-12-14 12:02:50,488 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 35 transitions, 90 flow [2022-12-14 12:02:50,625 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4372 states, 4369 states have (on average 4.13321126115816) internal successors, (18058), 4371 states have internal predecessors, (18058), 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 12:02:50,638 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:02:50,642 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;@4afa9ac4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:02:50,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-14 12:02:50,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 4372 states, 4369 states have (on average 4.13321126115816) internal successors, (18058), 4371 states have internal predecessors, (18058), 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 12:02:50,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 12:02:50,658 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:02:50,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 12:02:50,659 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 12:02:50,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:02:50,662 INFO L85 PathProgramCache]: Analyzing trace with hash 542296366, now seen corresponding path program 1 times [2022-12-14 12:02:50,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:02:50,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331741378] [2022-12-14 12:02:50,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:02:50,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:02:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:02:51,003 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 12:02:51,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:02:51,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331741378] [2022-12-14 12:02:51,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331741378] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:02:51,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:02:51,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:02:51,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799644428] [2022-12-14 12:02:51,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:02:51,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:02:51,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:02:51,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:02:51,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:02:51,052 INFO L87 Difference]: Start difference. First operand has 4372 states, 4369 states have (on average 4.13321126115816) internal successors, (18058), 4371 states have internal predecessors, (18058), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 12:02:51,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:02:51,222 INFO L93 Difference]: Finished difference Result 3562 states and 13925 transitions. [2022-12-14 12:02:51,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:02:51,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-12-14 12:02:51,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:02:51,265 INFO L225 Difference]: With dead ends: 3562 [2022-12-14 12:02:51,265 INFO L226 Difference]: Without dead ends: 3437 [2022-12-14 12:02:51,266 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 12:02:51,269 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:02:51,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 8 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:02:51,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3437 states. [2022-12-14 12:02:51,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3437 to 3437. [2022-12-14 12:02:51,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3437 states, 3436 states have (on average 3.928987194412107) internal successors, (13500), 3436 states have internal predecessors, (13500), 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 12:02:51,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3437 states to 3437 states and 13500 transitions. [2022-12-14 12:02:51,435 INFO L78 Accepts]: Start accepts. Automaton has 3437 states and 13500 transitions. Word has length 5 [2022-12-14 12:02:51,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:02:51,435 INFO L495 AbstractCegarLoop]: Abstraction has 3437 states and 13500 transitions. [2022-12-14 12:02:51,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 12:02:51,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3437 states and 13500 transitions. [2022-12-14 12:02:51,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 12:02:51,439 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:02:51,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:02:51,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:02:51,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 12:02:51,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:02:51,440 INFO L85 PathProgramCache]: Analyzing trace with hash 649085644, now seen corresponding path program 1 times [2022-12-14 12:02:51,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:02:51,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524865206] [2022-12-14 12:02:51,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:02:51,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:02:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:02:51,858 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 12:02:51,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:02:51,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524865206] [2022-12-14 12:02:51,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524865206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:02:51,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:02:51,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:02:51,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758416187] [2022-12-14 12:02:51,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:02:51,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:02:51,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:02:51,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:02:51,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:02:51,861 INFO L87 Difference]: Start difference. First operand 3437 states and 13500 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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 12:02:52,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:02:52,053 INFO L93 Difference]: Finished difference Result 3812 states and 14525 transitions. [2022-12-14 12:02:52,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:02:52,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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 12:02:52,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:02:52,068 INFO L225 Difference]: With dead ends: 3812 [2022-12-14 12:02:52,069 INFO L226 Difference]: Without dead ends: 3187 [2022-12-14 12:02:52,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:02:52,070 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 36 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:02:52,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 24 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:02:52,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3187 states. [2022-12-14 12:02:52,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3187 to 3187. [2022-12-14 12:02:52,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3187 states, 3186 states have (on average 3.8920276208411804) internal successors, (12400), 3186 states have internal predecessors, (12400), 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 12:02:52,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3187 states to 3187 states and 12400 transitions. [2022-12-14 12:02:52,153 INFO L78 Accepts]: Start accepts. Automaton has 3187 states and 12400 transitions. Word has length 12 [2022-12-14 12:02:52,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:02:52,154 INFO L495 AbstractCegarLoop]: Abstraction has 3187 states and 12400 transitions. [2022-12-14 12:02:52,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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 12:02:52,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3187 states and 12400 transitions. [2022-12-14 12:02:52,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 12:02:52,156 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:02:52,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:02:52,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:02:52,157 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 12:02:52,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:02:52,157 INFO L85 PathProgramCache]: Analyzing trace with hash 901724242, now seen corresponding path program 1 times [2022-12-14 12:02:52,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:02:52,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610713615] [2022-12-14 12:02:52,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:02:52,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:02:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:02:52,505 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 12:02:52,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:02:52,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610713615] [2022-12-14 12:02:52,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610713615] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:02:52,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:02:52,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:02:52,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913723647] [2022-12-14 12:02:52,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:02:52,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 12:02:52,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:02:52,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 12:02:52,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:02:52,508 INFO L87 Difference]: Start difference. First operand 3187 states and 12400 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 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 12:02:52,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:02:52,724 INFO L93 Difference]: Finished difference Result 4435 states and 16849 transitions. [2022-12-14 12:02:52,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:02:52,724 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 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 12:02:52,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:02:52,740 INFO L225 Difference]: With dead ends: 4435 [2022-12-14 12:02:52,740 INFO L226 Difference]: Without dead ends: 3739 [2022-12-14 12:02:52,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-14 12:02:52,741 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 80 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:02:52,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 24 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:02:52,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3739 states. [2022-12-14 12:02:52,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3739 to 3739. [2022-12-14 12:02:52,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3739 states, 3738 states have (on average 3.8496522204387373) internal successors, (14390), 3738 states have internal predecessors, (14390), 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 12:02:52,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3739 states to 3739 states and 14390 transitions. [2022-12-14 12:02:52,838 INFO L78 Accepts]: Start accepts. Automaton has 3739 states and 14390 transitions. Word has length 13 [2022-12-14 12:02:52,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:02:52,838 INFO L495 AbstractCegarLoop]: Abstraction has 3739 states and 14390 transitions. [2022-12-14 12:02:52,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 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 12:02:52,839 INFO L276 IsEmpty]: Start isEmpty. Operand 3739 states and 14390 transitions. [2022-12-14 12:02:52,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 12:02:52,843 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:02:52,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:02:52,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:02:52,843 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 12:02:52,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:02:52,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1448995251, now seen corresponding path program 1 times [2022-12-14 12:02:52,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:02:52,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761216310] [2022-12-14 12:02:52,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:02:52,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:02:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:02:53,032 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 12:02:53,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:02:53,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761216310] [2022-12-14 12:02:53,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761216310] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:02:53,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:02:53,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:02:53,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447548969] [2022-12-14 12:02:53,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:02:53,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:02:53,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:02:53,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:02:53,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:02:53,034 INFO L87 Difference]: Start difference. First operand 3739 states and 14390 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:02:53,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:02:53,115 INFO L93 Difference]: Finished difference Result 2803 states and 9710 transitions. [2022-12-14 12:02:53,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:02:53,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-12-14 12:02:53,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:02:53,132 INFO L225 Difference]: With dead ends: 2803 [2022-12-14 12:02:53,133 INFO L226 Difference]: Without dead ends: 2803 [2022-12-14 12:02:53,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:02:53,134 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:02:53,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 8 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:02:53,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2022-12-14 12:02:53,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2803. [2022-12-14 12:02:53,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 2802 states have (on average 3.465381870092791) internal successors, (9710), 2802 states have internal predecessors, (9710), 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 12:02:53,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 9710 transitions. [2022-12-14 12:02:53,198 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 9710 transitions. Word has length 15 [2022-12-14 12:02:53,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:02:53,198 INFO L495 AbstractCegarLoop]: Abstraction has 2803 states and 9710 transitions. [2022-12-14 12:02:53,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:02:53,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 9710 transitions. [2022-12-14 12:02:53,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 12:02:53,200 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:02:53,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:02:53,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 12:02:53,201 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 12:02:53,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:02:53,201 INFO L85 PathProgramCache]: Analyzing trace with hash 2005500535, now seen corresponding path program 1 times [2022-12-14 12:02:53,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:02:53,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124455628] [2022-12-14 12:02:53,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:02:53,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:02:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:02:53,330 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 12:02:53,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:02:53,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124455628] [2022-12-14 12:02:53,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124455628] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:02:53,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:02:53,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:02:53,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313963000] [2022-12-14 12:02:53,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:02:53,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:02:53,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:02:53,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:02:53,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:02:53,332 INFO L87 Difference]: Start difference. First operand 2803 states and 9710 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:02:53,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:02:53,427 INFO L93 Difference]: Finished difference Result 1683 states and 5230 transitions. [2022-12-14 12:02:53,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:02:53,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-12-14 12:02:53,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:02:53,433 INFO L225 Difference]: With dead ends: 1683 [2022-12-14 12:02:53,433 INFO L226 Difference]: Without dead ends: 1683 [2022-12-14 12:02:53,433 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 12:02:53,434 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 27 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:02:53,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 12 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:02:53,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2022-12-14 12:02:53,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1519. [2022-12-14 12:02:53,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 3.072463768115942) internal successors, (4664), 1518 states have internal predecessors, (4664), 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 12:02:53,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 4664 transitions. [2022-12-14 12:02:53,471 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 4664 transitions. Word has length 16 [2022-12-14 12:02:53,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:02:53,471 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 4664 transitions. [2022-12-14 12:02:53,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:02:53,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 4664 transitions. [2022-12-14 12:02:53,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 12:02:53,473 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:02:53,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:02:53,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:02:53,473 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 12:02:53,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:02:53,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1302771010, now seen corresponding path program 1 times [2022-12-14 12:02:53,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:02:53,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158259744] [2022-12-14 12:02:53,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:02:53,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:02:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:02:53,622 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 12:02:53,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:02:53,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158259744] [2022-12-14 12:02:53,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158259744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:02:53,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:02:53,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:02:53,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736470810] [2022-12-14 12:02:53,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:02:53,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:02:53,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:02:53,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:02:53,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:02:53,623 INFO L87 Difference]: Start difference. First operand 1519 states and 4664 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 12:02:53,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:02:53,720 INFO L93 Difference]: Finished difference Result 1111 states and 3440 transitions. [2022-12-14 12:02:53,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:02:53,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2022-12-14 12:02:53,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:02:53,724 INFO L225 Difference]: With dead ends: 1111 [2022-12-14 12:02:53,724 INFO L226 Difference]: Without dead ends: 1111 [2022-12-14 12:02:53,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:02:53,725 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 55 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:02:53,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 16 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:02:53,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2022-12-14 12:02:53,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1023. [2022-12-14 12:02:53,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 1022 states have (on average 3.107632093933464) internal successors, (3176), 1022 states have internal predecessors, (3176), 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 12:02:53,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 3176 transitions. [2022-12-14 12:02:53,751 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 3176 transitions. Word has length 20 [2022-12-14 12:02:53,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:02:53,751 INFO L495 AbstractCegarLoop]: Abstraction has 1023 states and 3176 transitions. [2022-12-14 12:02:53,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 12:02:53,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 3176 transitions. [2022-12-14 12:02:53,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 12:02:53,754 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:02:53,754 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] [2022-12-14 12:02:53,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 12:02:53,754 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 12:02:53,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:02:53,755 INFO L85 PathProgramCache]: Analyzing trace with hash -812350811, now seen corresponding path program 1 times [2022-12-14 12:02:53,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:02:53,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600475802] [2022-12-14 12:02:53,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:02:53,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:02:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:02:53,980 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 12:02:53,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:02:53,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600475802] [2022-12-14 12:02:53,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600475802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:02:53,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:02:53,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:02:53,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624375280] [2022-12-14 12:02:53,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:02:53,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 12:02:53,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:02:53,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 12:02:53,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:02:53,982 INFO L87 Difference]: Start difference. First operand 1023 states and 3176 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 12:02:54,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:02:54,098 INFO L93 Difference]: Finished difference Result 957 states and 3044 transitions. [2022-12-14 12:02:54,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:02:54,098 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 24 [2022-12-14 12:02:54,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:02:54,102 INFO L225 Difference]: With dead ends: 957 [2022-12-14 12:02:54,102 INFO L226 Difference]: Without dead ends: 957 [2022-12-14 12:02:54,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:02:54,103 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 70 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:02:54,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 16 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:02:54,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2022-12-14 12:02:54,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 941. [2022-12-14 12:02:54,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 940 states have (on average 3.195744680851064) internal successors, (3004), 940 states have internal predecessors, (3004), 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 12:02:54,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 3004 transitions. [2022-12-14 12:02:54,126 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 3004 transitions. Word has length 24 [2022-12-14 12:02:54,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:02:54,126 INFO L495 AbstractCegarLoop]: Abstraction has 941 states and 3004 transitions. [2022-12-14 12:02:54,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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 12:02:54,126 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 3004 transitions. [2022-12-14 12:02:54,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 12:02:54,129 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:02:54,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:02:54,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 12:02:54,129 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 12:02:54,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:02:54,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1039815674, now seen corresponding path program 1 times [2022-12-14 12:02:54,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:02:54,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392036157] [2022-12-14 12:02:54,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:02:54,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:02:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:02:54,437 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 12:02:54,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:02:54,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392036157] [2022-12-14 12:02:54,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392036157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:02:54,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:02:54,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:02:54,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147636770] [2022-12-14 12:02:54,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:02:54,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 12:02:54,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:02:54,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 12:02:54,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:02:54,439 INFO L87 Difference]: Start difference. First operand 941 states and 3004 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 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 12:02:54,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:02:54,728 INFO L93 Difference]: Finished difference Result 1244 states and 3912 transitions. [2022-12-14 12:02:54,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 12:02:54,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 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 28 [2022-12-14 12:02:54,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:02:54,730 INFO L225 Difference]: With dead ends: 1244 [2022-12-14 12:02:54,730 INFO L226 Difference]: Without dead ends: 493 [2022-12-14 12:02:54,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-14 12:02:54,731 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 45 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:02:54,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 21 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:02:54,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-12-14 12:02:54,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2022-12-14 12:02:54,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 492 states have (on average 2.9186991869918697) internal successors, (1436), 492 states have internal predecessors, (1436), 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 12:02:54,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 1436 transitions. [2022-12-14 12:02:54,742 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 1436 transitions. Word has length 28 [2022-12-14 12:02:54,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:02:54,742 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 1436 transitions. [2022-12-14 12:02:54,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 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 12:02:54,742 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 1436 transitions. [2022-12-14 12:02:54,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 12:02:54,743 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:02:54,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:02:54,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 12:02:54,744 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 12:02:54,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:02:54,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1477413626, now seen corresponding path program 2 times [2022-12-14 12:02:54,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:02:54,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227393453] [2022-12-14 12:02:54,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:02:54,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:02:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:02:55,495 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 12:02:55,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:02:55,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227393453] [2022-12-14 12:02:55,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227393453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:02:55,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:02:55,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 12:02:55,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334456294] [2022-12-14 12:02:55,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:02:55,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 12:02:55,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:02:55,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 12:02:55,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-14 12:02:55,496 INFO L87 Difference]: Start difference. First operand 493 states and 1436 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 12:02:55,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:02:55,727 INFO L93 Difference]: Finished difference Result 978 states and 2811 transitions. [2022-12-14 12:02:55,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 12:02:55,728 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 28 [2022-12-14 12:02:55,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:02:55,730 INFO L225 Difference]: With dead ends: 978 [2022-12-14 12:02:55,730 INFO L226 Difference]: Without dead ends: 935 [2022-12-14 12:02:55,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-12-14 12:02:55,730 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 71 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:02:55,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 30 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:02:55,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2022-12-14 12:02:55,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 605. [2022-12-14 12:02:55,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 604 states have (on average 2.880794701986755) internal successors, (1740), 604 states have internal predecessors, (1740), 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 12:02:55,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 1740 transitions. [2022-12-14 12:02:55,741 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 1740 transitions. Word has length 28 [2022-12-14 12:02:55,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:02:55,742 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 1740 transitions. [2022-12-14 12:02:55,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 12:02:55,742 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 1740 transitions. [2022-12-14 12:02:55,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 12:02:55,743 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:02:55,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:02:55,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 12:02:55,743 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 12:02:55,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:02:55,743 INFO L85 PathProgramCache]: Analyzing trace with hash -986393514, now seen corresponding path program 3 times [2022-12-14 12:02:55,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:02:55,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161180575] [2022-12-14 12:02:55,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:02:55,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:02:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:02:56,554 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 12:02:56,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:02:56,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161180575] [2022-12-14 12:02:56,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161180575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:02:56,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:02:56,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 12:02:56,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123413182] [2022-12-14 12:02:56,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:02:56,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 12:02:56,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:02:56,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 12:02:56,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-14 12:02:56,555 INFO L87 Difference]: Start difference. First operand 605 states and 1740 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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 12:02:56,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:02:56,791 INFO L93 Difference]: Finished difference Result 716 states and 2031 transitions. [2022-12-14 12:02:56,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:02:56,792 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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 28 [2022-12-14 12:02:56,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:02:56,793 INFO L225 Difference]: With dead ends: 716 [2022-12-14 12:02:56,793 INFO L226 Difference]: Without dead ends: 613 [2022-12-14 12:02:56,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2022-12-14 12:02:56,793 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 80 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:02:56,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 29 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:02:56,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-12-14 12:02:56,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 453. [2022-12-14 12:02:56,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 452 states have (on average 2.8761061946902653) internal successors, (1300), 452 states have internal predecessors, (1300), 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 12:02:56,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 1300 transitions. [2022-12-14 12:02:56,805 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 1300 transitions. Word has length 28 [2022-12-14 12:02:56,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:02:56,805 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 1300 transitions. [2022-12-14 12:02:56,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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 12:02:56,805 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 1300 transitions. [2022-12-14 12:02:56,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 12:02:56,806 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:02:56,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:02:56,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 12:02:56,807 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 12:02:56,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:02:56,807 INFO L85 PathProgramCache]: Analyzing trace with hash 459034350, now seen corresponding path program 4 times [2022-12-14 12:02:56,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:02:56,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158292166] [2022-12-14 12:02:56,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:02:56,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:02:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:02:57,963 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 12:02:57,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:02:57,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158292166] [2022-12-14 12:02:57,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158292166] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:02:57,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:02:57,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 12:02:57,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277061761] [2022-12-14 12:02:57,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:02:57,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 12:02:57,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:02:57,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 12:02:57,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-14 12:02:57,964 INFO L87 Difference]: Start difference. First operand 453 states and 1300 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 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 12:02:58,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:02:58,290 INFO L93 Difference]: Finished difference Result 746 states and 2098 transitions. [2022-12-14 12:02:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 12:02:58,291 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 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 28 [2022-12-14 12:02:58,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:02:58,292 INFO L225 Difference]: With dead ends: 746 [2022-12-14 12:02:58,293 INFO L226 Difference]: Without dead ends: 589 [2022-12-14 12:02:58,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-12-14 12:02:58,293 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 67 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:02:58,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 61 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 12:02:58,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2022-12-14 12:02:58,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 437. [2022-12-14 12:02:58,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 436 states have (on average 2.8807339449541285) internal successors, (1256), 436 states have internal predecessors, (1256), 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 12:02:58,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 1256 transitions. [2022-12-14 12:02:58,303 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 1256 transitions. Word has length 28 [2022-12-14 12:02:58,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:02:58,304 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 1256 transitions. [2022-12-14 12:02:58,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 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 12:02:58,304 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 1256 transitions. [2022-12-14 12:02:58,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 12:02:58,305 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:02:58,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:02:58,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 12:02:58,306 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 12:02:58,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:02:58,306 INFO L85 PathProgramCache]: Analyzing trace with hash 244716038, now seen corresponding path program 5 times [2022-12-14 12:02:58,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:02:58,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121891181] [2022-12-14 12:02:58,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:02:58,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:02:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:02:58,354 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 12:02:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:02:58,428 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 12:02:58,428 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 12:02:58,429 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-12-14 12:02:58,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-12-14 12:02:58,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-14 12:02:58,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-12-14 12:02:58,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-12-14 12:02:58,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2022-12-14 12:02:58,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-12-14 12:02:58,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 12:02:58,434 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:02:58,439 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 12:02:58,439 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:02:58,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:02:58 BasicIcfg [2022-12-14 12:02:58,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:02:58,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:02:58,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:02:58,509 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:02:58,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:02:47" (3/4) ... [2022-12-14 12:02:58,511 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 12:02:58,589 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7481e4f9-6b82-44bc-9ce2-a11952937383/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 12:02:58,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:02:58,590 INFO L158 Benchmark]: Toolchain (without parser) took 12449.12ms. Allocated memory was 155.2MB in the beginning and 390.1MB in the end (delta: 234.9MB). Free memory was 108.0MB in the beginning and 125.9MB in the end (delta: -17.8MB). Peak memory consumption was 219.3MB. Max. memory is 16.1GB. [2022-12-14 12:02:58,590 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 104.9MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:02:58,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.13ms. Allocated memory is still 155.2MB. Free memory was 107.5MB in the beginning and 79.9MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 12:02:58,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.63ms. Allocated memory is still 155.2MB. Free memory was 79.9MB in the beginning and 77.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 12:02:58,591 INFO L158 Benchmark]: Boogie Preprocessor took 21.17ms. Allocated memory is still 155.2MB. Free memory was 77.2MB in the beginning and 75.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:02:58,591 INFO L158 Benchmark]: RCFGBuilder took 515.55ms. Allocated memory is still 155.2MB. Free memory was 75.1MB in the beginning and 96.8MB in the end (delta: -21.6MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-12-14 12:02:58,591 INFO L158 Benchmark]: TraceAbstraction took 11438.77ms. Allocated memory was 155.2MB in the beginning and 390.1MB in the end (delta: 234.9MB). Free memory was 96.8MB in the beginning and 140.5MB in the end (delta: -43.8MB). Peak memory consumption was 191.6MB. Max. memory is 16.1GB. [2022-12-14 12:02:58,592 INFO L158 Benchmark]: Witness Printer took 80.10ms. Allocated memory is still 390.1MB. Free memory was 140.5MB in the beginning and 125.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 12:02:58,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 104.9MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.13ms. Allocated memory is still 155.2MB. Free memory was 107.5MB in the beginning and 79.9MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.63ms. Allocated memory is still 155.2MB. Free memory was 79.9MB in the beginning and 77.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.17ms. Allocated memory is still 155.2MB. Free memory was 77.2MB in the beginning and 75.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 515.55ms. Allocated memory is still 155.2MB. Free memory was 75.1MB in the beginning and 96.8MB in the end (delta: -21.6MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * TraceAbstraction took 11438.77ms. Allocated memory was 155.2MB in the beginning and 390.1MB in the end (delta: 234.9MB). Free memory was 96.8MB in the beginning and 140.5MB in the end (delta: -43.8MB). Peak memory consumption was 191.6MB. Max. memory is 16.1GB. * Witness Printer took 80.10ms. Allocated memory is still 390.1MB. Free memory was 140.5MB in the beginning and 125.9MB 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: 3.3s, 147 PlacesBefore, 47 PlacesAfterwards, 136 TransitionsBefore, 35 TransitionsAfterwards, 3276 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 115 TotalNumberOfCompositions, 9037 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4337, independent: 4121, independent conditional: 0, independent unconditional: 4121, dependent: 216, dependent conditional: 0, dependent unconditional: 216, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2265, independent: 2201, independent conditional: 0, independent unconditional: 2201, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2265, independent: 2172, independent conditional: 0, independent unconditional: 2172, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 93, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 300, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 273, dependent conditional: 0, dependent unconditional: 273, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4337, independent: 1920, independent conditional: 0, independent unconditional: 1920, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 2265, unknown conditional: 0, unknown unconditional: 2265] , Statistics on independence cache: Total cache size (in pairs): 264, Positive cache size: 240, Positive conditional cache size: 0, Positive unconditional cache size: 240, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, 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_p2_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int a = 0; [L719] 0 _Bool main$tmp_guard0; [L720] 0 _Bool main$tmp_guard1; [L722] 0 int x = 0; [L723] 0 _Bool x$flush_delayed; [L724] 0 int x$mem_tmp; [L725] 0 _Bool x$r_buff0_thd0; [L726] 0 _Bool x$r_buff0_thd1; [L727] 0 _Bool x$r_buff0_thd2; [L728] 0 _Bool x$r_buff0_thd3; [L729] 0 _Bool x$r_buff0_thd4; [L730] 0 _Bool x$r_buff1_thd0; [L731] 0 _Bool x$r_buff1_thd1; [L732] 0 _Bool x$r_buff1_thd2; [L733] 0 _Bool x$r_buff1_thd3; [L734] 0 _Bool x$r_buff1_thd4; [L735] 0 _Bool x$read_delayed; [L736] 0 int *x$read_delayed_var; [L737] 0 int x$w_buff0; [L738] 0 _Bool x$w_buff0_used; [L739] 0 int x$w_buff1; [L740] 0 _Bool x$w_buff1_used; [L742] 0 int y = 0; [L744] 0 int z = 0; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L848] 0 pthread_t t1377; [L849] FCALL, FORK 0 pthread_create(&t1377, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1377, ((void *)0), P0, ((void *)0))=-2, t1377={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L850] 0 pthread_t t1378; [L851] FCALL, FORK 0 pthread_create(&t1378, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1378, ((void *)0), P1, ((void *)0))=-1, t1377={5:0}, t1378={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L770] 2 x$w_buff1 = x$w_buff0 [L771] 2 x$w_buff0 = 2 [L772] 2 x$w_buff1_used = x$w_buff0_used [L773] 2 x$w_buff0_used = (_Bool)1 [L774] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L774] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L775] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L776] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L777] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L778] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L779] 2 x$r_buff1_thd4 = x$r_buff0_thd4 [L780] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L783] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L852] 0 pthread_t t1379; [L853] FCALL, FORK 0 pthread_create(&t1379, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1379, ((void *)0), P2, ((void *)0))=0, t1377={5:0}, t1378={6:0}, t1379={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L800] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L854] 0 pthread_t t1380; [L803] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L806] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L807] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L808] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L809] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L810] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L855] FCALL, FORK 0 pthread_create(&t1380, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1380, ((void *)0), P3, ((void *)0))=1, t1377={5:0}, t1378={6:0}, t1379={7:0}, t1380={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L820] 4 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L823] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L826] 4 x = x$w_buff0_used && x$r_buff0_thd4 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd4 ? x$w_buff1 : x) [L827] 4 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$w_buff0_used [L828] 4 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$w_buff1_used [L829] 4 x$r_buff0_thd4 = x$w_buff0_used && x$r_buff0_thd4 ? (_Bool)0 : x$r_buff0_thd4 [L830] 4 x$r_buff1_thd4 = x$w_buff0_used && x$r_buff0_thd4 || x$w_buff1_used && x$r_buff1_thd4 ? (_Bool)0 : x$r_buff1_thd4 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L750] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=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=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L753] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=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=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L786] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L787] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L788] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L789] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L790] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=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$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L793] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L795] 2 return 0; [L756] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L757] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L758] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L759] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L760] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=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, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L763] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L765] 1 return 0; [L833] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L835] 4 return 0; [L813] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L815] 3 return 0; [L857] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L859] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L859] RET 0 assume_abort_if_not(main$tmp_guard0) [L861] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L862] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L863] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L864] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L865] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1377={5:0}, t1378={6:0}, t1379={7:0}, t1380={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L868] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L869] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L870] 0 x$flush_delayed = weak$$choice2 [L871] 0 x$mem_tmp = x [L872] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L873] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L874] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L875] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L876] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L878] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L879] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) [L880] 0 x = x$flush_delayed ? x$mem_tmp : x [L881] 0 x$flush_delayed = (_Bool)0 [L883] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff0_thd4=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$r_buff1_thd4=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] - 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: 853]: 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: 851]: 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: 849]: 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, 172 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 556 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 556 mSDsluCounter, 249 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 178 mSDsCounter, 130 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1479 IncrementalHoareTripleChecker+Invalid, 1609 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 130 mSolverCounterUnsat, 71 mSDtfsCounter, 1479 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4372occurred in iteration=0, InterpolantAutomatonStates: 61, 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, 910 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 245 NumberOfCodeBlocks, 245 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 206 ConstructedInterpolants, 0 QuantifiedInterpolants, 2350 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 12:02:58,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7481e4f9-6b82-44bc-9ce2-a11952937383/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