./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76c4825-b5b0-430f-be68-afc72a1ff661/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76c4825-b5b0-430f-be68-afc72a1ff661/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_d76c4825-b5b0-430f-be68-afc72a1ff661/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76c4825-b5b0-430f-be68-afc72a1ff661/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76c4825-b5b0-430f-be68-afc72a1ff661/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_d76c4825-b5b0-430f-be68-afc72a1ff661/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 6cbe8dd40fecf4391efe5e4ba3939c64a9fdbbfb53083def47a68bbefda43a3c --- 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 12:07:04,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:07:04,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:07:04,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:07:04,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:07:04,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:07:04,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:07:04,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:07:04,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:07:04,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:07:04,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:07:04,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:07:04,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:07:04,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:07:04,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:07:04,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:07:04,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:07:04,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:07:04,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:07:04,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:07:04,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:07:04,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:07:04,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:07:04,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:07:04,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:07:04,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:07:04,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:07:04,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:07:04,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:07:04,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:07:04,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:07:04,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:07:04,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:07:04,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:07:04,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:07:04,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:07:04,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:07:04,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:07:04,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:07:04,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:07:04,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:07:04,997 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76c4825-b5b0-430f-be68-afc72a1ff661/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 12:07:05,011 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:07:05,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:07:05,011 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:07:05,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:07:05,012 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:07:05,012 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:07:05,012 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:07:05,012 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:07:05,012 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:07:05,012 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:07:05,013 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:07:05,013 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:07:05,013 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:07:05,013 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:07:05,013 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:07:05,013 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:07:05,013 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:07:05,014 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:07:05,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:07:05,014 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:07:05,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:07:05,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:07:05,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:07:05,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:07:05,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:07:05,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:07:05,015 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:07:05,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:07:05,015 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:07:05,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:07:05,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:07:05,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:07:05,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:07:05,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:07:05,016 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:07:05,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:07:05,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:07:05,017 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:07:05,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:07:05,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:07:05,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:07:05,017 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_d76c4825-b5b0-430f-be68-afc72a1ff661/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76c4825-b5b0-430f-be68-afc72a1ff661/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6cbe8dd40fecf4391efe5e4ba3939c64a9fdbbfb53083def47a68bbefda43a3c [2022-12-14 12:07:05,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:07:05,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:07:05,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:07:05,214 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:07:05,214 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:07:05,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76c4825-b5b0-430f-be68-afc72a1ff661/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2022-12-14 12:07:07,782 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:07:07,936 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:07:07,937 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76c4825-b5b0-430f-be68-afc72a1ff661/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2022-12-14 12:07:07,942 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76c4825-b5b0-430f-be68-afc72a1ff661/bin/utaipan-gh47qXpMRh/data/62c59df25/46d2f8e33dbc4f0a95fe9ec83ff0fca9/FLAGa07b1eb62 [2022-12-14 12:07:08,357 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76c4825-b5b0-430f-be68-afc72a1ff661/bin/utaipan-gh47qXpMRh/data/62c59df25/46d2f8e33dbc4f0a95fe9ec83ff0fca9 [2022-12-14 12:07:08,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:07:08,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:07:08,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:07:08,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:07:08,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:07:08,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:07:08" (1/1) ... [2022-12-14 12:07:08,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f62c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:07:08, skipping insertion in model container [2022-12-14 12:07:08,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:07:08" (1/1) ... [2022-12-14 12:07:08,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:07:08,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:07:08,501 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,504 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,505 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,508 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,510 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,530 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_d76c4825-b5b0-430f-be68-afc72a1ff661/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c[5938,5951] [2022-12-14 12:07:08,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:07:08,541 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:07:08,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 12:07:08,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 12:07:08,571 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_d76c4825-b5b0-430f-be68-afc72a1ff661/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c[5938,5951] [2022-12-14 12:07:08,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:07:08,582 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:07:08,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:07:08 WrapperNode [2022-12-14 12:07:08,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:07:08,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:07:08,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:07:08,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:07:08,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:07:08" (1/1) ... [2022-12-14 12:07:08,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:07:08" (1/1) ... [2022-12-14 12:07:08,611 INFO L138 Inliner]: procedures = 25, calls = 120, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 248 [2022-12-14 12:07:08,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:07:08,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:07:08,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:07:08,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:07:08,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:07:08" (1/1) ... [2022-12-14 12:07:08,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:07:08" (1/1) ... [2022-12-14 12:07:08,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:07:08" (1/1) ... [2022-12-14 12:07:08,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:07:08" (1/1) ... [2022-12-14 12:07:08,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:07:08" (1/1) ... [2022-12-14 12:07:08,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:07:08" (1/1) ... [2022-12-14 12:07:08,630 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:07:08" (1/1) ... [2022-12-14 12:07:08,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:07:08" (1/1) ... [2022-12-14 12:07:08,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:07:08,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:07:08,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:07:08,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:07:08,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:07:08" (1/1) ... [2022-12-14 12:07:08,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:07:08,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76c4825-b5b0-430f-be68-afc72a1ff661/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:07:08,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76c4825-b5b0-430f-be68-afc72a1ff661/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:07:08,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76c4825-b5b0-430f-be68-afc72a1ff661/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:07:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:07:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:07:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:07:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:07:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-14 12:07:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-14 12:07:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-14 12:07:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-14 12:07:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-14 12:07:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-14 12:07:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-14 12:07:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-14 12:07:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:07:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-14 12:07:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-14 12:07:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-14 12:07:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-14 12:07:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 12:07:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 12:07:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:07:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:07:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:07:08,689 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 12:07:08,770 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:07:08,772 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:07:09,036 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:07:09,111 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:07:09,111 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 12:07:09,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:07:09 BoogieIcfgContainer [2022-12-14 12:07:09,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:07:09,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:07:09,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:07:09,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:07:09,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:07:08" (1/3) ... [2022-12-14 12:07:09,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0b204a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:07:09, skipping insertion in model container [2022-12-14 12:07:09,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:07:08" (2/3) ... [2022-12-14 12:07:09,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0b204a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:07:09, skipping insertion in model container [2022-12-14 12:07:09,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:07:09" (3/3) ... [2022-12-14 12:07:09,123 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier-loop.wvr.c [2022-12-14 12:07:09,132 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 12:07:09,143 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:07:09,143 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:07:09,143 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 12:07:09,227 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-12-14 12:07:09,253 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 12:07:09,262 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 257 places, 252 transitions, 576 flow [2022-12-14 12:07:09,264 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 257 places, 252 transitions, 576 flow [2022-12-14 12:07:09,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 252 transitions, 576 flow [2022-12-14 12:07:09,324 INFO L130 PetriNetUnfolder]: 14/224 cut-off events. [2022-12-14 12:07:09,324 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-14 12:07:09,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 224 events. 14/224 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 361 event pairs, 0 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 187. Up to 3 conditions per place. [2022-12-14 12:07:09,333 INFO L119 LiptonReduction]: Number of co-enabled transitions 10592 [2022-12-14 12:07:12,579 INFO L134 LiptonReduction]: Checked pairs total: 65945 [2022-12-14 12:07:12,579 INFO L136 LiptonReduction]: Total number of compositions: 167 [2022-12-14 12:07:12,585 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 115 places, 104 transitions, 280 flow [2022-12-14 12:07:15,839 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 111864 states, 111863 states have (on average 5.166006633113719) internal successors, (577885), 111863 states have internal predecessors, (577885), 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 12:07:15,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:07:15,858 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;@41c7840a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:07:15,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-12-14 12:07:16,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 111864 states, 111863 states have (on average 5.166006633113719) internal successors, (577885), 111863 states have internal predecessors, (577885), 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 12:07:16,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-14 12:07:16,676 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:07:16,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:07:16,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-14 12:07:16,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:07:16,681 INFO L85 PathProgramCache]: Analyzing trace with hash 953109679, now seen corresponding path program 1 times [2022-12-14 12:07:16,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:07:16,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088111112] [2022-12-14 12:07:16,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:07:16,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:07:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:07:17,294 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 12:07:17,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:07:17,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088111112] [2022-12-14 12:07:17,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088111112] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:07:17,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:07:17,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 12:07:17,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550020782] [2022-12-14 12:07:17,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:07:17,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:07:17,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:07:17,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:07:17,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:07:17,557 INFO L87 Difference]: Start difference. First operand has 111864 states, 111863 states have (on average 5.166006633113719) internal successors, (577885), 111863 states have internal predecessors, (577885), 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 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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 12:07:19,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:07:19,006 INFO L93 Difference]: Finished difference Result 116865 states and 600755 transitions. [2022-12-14 12:07:19,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:07:19,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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 51 [2022-12-14 12:07:19,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:07:19,695 INFO L225 Difference]: With dead ends: 116865 [2022-12-14 12:07:19,695 INFO L226 Difference]: Without dead ends: 116684 [2022-12-14 12:07:19,696 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 12:07:19,698 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 8 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:07:19,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 68 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:07:20,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116684 states. [2022-12-14 12:07:23,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116684 to 113828. [2022-12-14 12:07:23,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113828 states, 113827 states have (on average 5.150816590088468) internal successors, (586302), 113827 states have internal predecessors, (586302), 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 12:07:24,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113828 states to 113828 states and 586302 transitions. [2022-12-14 12:07:24,378 INFO L78 Accepts]: Start accepts. Automaton has 113828 states and 586302 transitions. Word has length 51 [2022-12-14 12:07:24,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:07:24,379 INFO L495 AbstractCegarLoop]: Abstraction has 113828 states and 586302 transitions. [2022-12-14 12:07:24,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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 12:07:24,380 INFO L276 IsEmpty]: Start isEmpty. Operand 113828 states and 586302 transitions. [2022-12-14 12:07:24,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 12:07:24,723 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:07:24,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:07:24,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:07:24,724 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-14 12:07:24,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:07:24,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1300975853, now seen corresponding path program 1 times [2022-12-14 12:07:24,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:07:24,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916656545] [2022-12-14 12:07:24,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:07:24,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:07:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:07:24,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:07:24,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:07:24,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916656545] [2022-12-14 12:07:24,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916656545] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:07:24,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:07:24,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:07:24,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396922571] [2022-12-14 12:07:24,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:07:24,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:07:24,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:07:24,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:07:24,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:07:24,876 INFO L87 Difference]: Start difference. First operand 113828 states and 586302 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 12:07:26,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:07:26,020 INFO L93 Difference]: Finished difference Result 106116 states and 542610 transitions. [2022-12-14 12:07:26,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:07:26,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2022-12-14 12:07:26,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:07:26,658 INFO L225 Difference]: With dead ends: 106116 [2022-12-14 12:07:26,658 INFO L226 Difference]: Without dead ends: 103236 [2022-12-14 12:07:26,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 12:07:26,659 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 70 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:07:26,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 96 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:07:27,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103236 states. [2022-12-14 12:07:29,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103236 to 103236. [2022-12-14 12:07:29,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103236 states, 103235 states have (on average 5.106582070034388) internal successors, (527178), 103235 states have internal predecessors, (527178), 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 12:07:30,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103236 states to 103236 states and 527178 transitions. [2022-12-14 12:07:30,392 INFO L78 Accepts]: Start accepts. Automaton has 103236 states and 527178 transitions. Word has length 59 [2022-12-14 12:07:30,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:07:30,392 INFO L495 AbstractCegarLoop]: Abstraction has 103236 states and 527178 transitions. [2022-12-14 12:07:30,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 12:07:30,392 INFO L276 IsEmpty]: Start isEmpty. Operand 103236 states and 527178 transitions. [2022-12-14 12:07:30,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 12:07:30,695 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:07:30,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:07:30,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:07:30,695 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-14 12:07:30,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:07:30,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1703468971, now seen corresponding path program 1 times [2022-12-14 12:07:30,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:07:30,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764922400] [2022-12-14 12:07:30,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:07:30,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:07:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:07:30,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:07:30,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:07:30,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764922400] [2022-12-14 12:07:30,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764922400] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:07:30,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:07:30,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:07:30,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520092130] [2022-12-14 12:07:30,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:07:30,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:07:30,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:07:30,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:07:30,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:07:30,981 INFO L87 Difference]: Start difference. First operand 103236 states and 527178 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 12:07:32,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:07:32,111 INFO L93 Difference]: Finished difference Result 103236 states and 521016 transitions. [2022-12-14 12:07:32,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:07:32,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2022-12-14 12:07:32,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:07:32,565 INFO L225 Difference]: With dead ends: 103236 [2022-12-14 12:07:32,566 INFO L226 Difference]: Without dead ends: 95964 [2022-12-14 12:07:32,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 12:07:32,567 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 61 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:07:32,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 96 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:07:32,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95964 states. [2022-12-14 12:07:35,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95964 to 95964. [2022-12-14 12:07:35,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95964 states, 95963 states have (on average 5.031522565988975) internal successors, (482840), 95963 states have internal predecessors, (482840), 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 12:07:36,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95964 states to 95964 states and 482840 transitions. [2022-12-14 12:07:36,148 INFO L78 Accepts]: Start accepts. Automaton has 95964 states and 482840 transitions. Word has length 59 [2022-12-14 12:07:36,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:07:36,148 INFO L495 AbstractCegarLoop]: Abstraction has 95964 states and 482840 transitions. [2022-12-14 12:07:36,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 12:07:36,149 INFO L276 IsEmpty]: Start isEmpty. Operand 95964 states and 482840 transitions. [2022-12-14 12:07:36,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 12:07:36,425 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:07:36,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:07:36,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:07:36,425 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-14 12:07:36,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:07:36,425 INFO L85 PathProgramCache]: Analyzing trace with hash -241720511, now seen corresponding path program 1 times [2022-12-14 12:07:36,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:07:36,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245735735] [2022-12-14 12:07:36,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:07:36,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:07:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:07:36,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:07:36,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:07:36,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245735735] [2022-12-14 12:07:36,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245735735] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:07:36,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:07:36,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:07:36,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430998015] [2022-12-14 12:07:36,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:07:36,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:07:36,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:07:36,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:07:36,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:07:36,533 INFO L87 Difference]: Start difference. First operand 95964 states and 482840 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 12:07:37,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:07:37,369 INFO L93 Difference]: Finished difference Result 89372 states and 446308 transitions. [2022-12-14 12:07:37,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:07:37,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2022-12-14 12:07:37,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:07:37,750 INFO L225 Difference]: With dead ends: 89372 [2022-12-14 12:07:37,750 INFO L226 Difference]: Without dead ends: 86900 [2022-12-14 12:07:37,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 12:07:37,752 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 66 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:07:37,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 93 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:07:38,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86900 states. [2022-12-14 12:07:40,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86900 to 86900. [2022-12-14 12:07:40,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86900 states, 86899 states have (on average 4.98744519499649) internal successors, (433404), 86899 states have internal predecessors, (433404), 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 12:07:40,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86900 states to 86900 states and 433404 transitions. [2022-12-14 12:07:40,848 INFO L78 Accepts]: Start accepts. Automaton has 86900 states and 433404 transitions. Word has length 59 [2022-12-14 12:07:40,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:07:40,848 INFO L495 AbstractCegarLoop]: Abstraction has 86900 states and 433404 transitions. [2022-12-14 12:07:40,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 12:07:40,849 INFO L276 IsEmpty]: Start isEmpty. Operand 86900 states and 433404 transitions. [2022-12-14 12:07:41,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-14 12:07:41,296 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:07:41,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:07:41,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 12:07:41,297 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-14 12:07:41,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:07:41,297 INFO L85 PathProgramCache]: Analyzing trace with hash 817383757, now seen corresponding path program 1 times [2022-12-14 12:07:41,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:07:41,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757428593] [2022-12-14 12:07:41,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:07:41,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:07:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:07:41,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:07:41,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:07:41,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757428593] [2022-12-14 12:07:41,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757428593] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:07:41,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:07:41,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:07:41,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313183162] [2022-12-14 12:07:41,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:07:41,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:07:41,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:07:41,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:07:41,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:07:41,438 INFO L87 Difference]: Start difference. First operand 86900 states and 433404 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 12:07:42,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:07:42,077 INFO L93 Difference]: Finished difference Result 86900 states and 428230 transitions. [2022-12-14 12:07:42,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:07:42,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2022-12-14 12:07:42,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:07:42,556 INFO L225 Difference]: With dead ends: 86900 [2022-12-14 12:07:42,556 INFO L226 Difference]: Without dead ends: 80552 [2022-12-14 12:07:42,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 12:07:42,557 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 62 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:07:42,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 93 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:07:42,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80552 states. [2022-12-14 12:07:44,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80552 to 80552. [2022-12-14 12:07:44,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80552 states, 80551 states have (on average 4.914700003724349) internal successors, (395884), 80551 states have internal predecessors, (395884), 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 12:07:45,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80552 states to 80552 states and 395884 transitions. [2022-12-14 12:07:45,246 INFO L78 Accepts]: Start accepts. Automaton has 80552 states and 395884 transitions. Word has length 59 [2022-12-14 12:07:45,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:07:45,246 INFO L495 AbstractCegarLoop]: Abstraction has 80552 states and 395884 transitions. [2022-12-14 12:07:45,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 12:07:45,246 INFO L276 IsEmpty]: Start isEmpty. Operand 80552 states and 395884 transitions. [2022-12-14 12:07:45,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 12:07:45,444 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:07:45,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:07:45,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:07:45,444 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-12-14 12:07:45,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:07:45,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1714225327, now seen corresponding path program 1 times [2022-12-14 12:07:45,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:07:45,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256848185] [2022-12-14 12:07:45,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:07:45,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:07:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:07:45,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 12:07:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:07:45,559 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 12:07:45,559 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 12:07:45,560 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 11 remaining) [2022-12-14 12:07:45,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 11 remaining) [2022-12-14 12:07:45,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2022-12-14 12:07:45,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 11 remaining) [2022-12-14 12:07:45,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2022-12-14 12:07:45,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 11 remaining) [2022-12-14 12:07:45,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2022-12-14 12:07:45,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Thread1of1ForFork3Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 11 remaining) [2022-12-14 12:07:45,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Thread1of1ForFork3Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2022-12-14 12:07:45,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Thread1of1ForFork0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2022-12-14 12:07:45,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Thread1of1ForFork0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2022-12-14 12:07:45,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 12:07:45,564 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-14 12:07:45,567 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 12:07:45,568 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:07:45,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:07:45 BasicIcfg [2022-12-14 12:07:45,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:07:45,845 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:07:45,845 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:07:45,846 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:07:45,846 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:07:09" (3/4) ... [2022-12-14 12:07:45,848 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 12:07:45,920 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76c4825-b5b0-430f-be68-afc72a1ff661/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 12:07:45,921 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:07:45,921 INFO L158 Benchmark]: Toolchain (without parser) took 37560.77ms. Allocated memory was 123.7MB in the beginning and 13.1GB in the end (delta: 13.0GB). Free memory was 88.9MB in the beginning and 7.9GB in the end (delta: -7.8GB). Peak memory consumption was 5.2GB. Max. memory is 16.1GB. [2022-12-14 12:07:45,921 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 123.7MB. Free memory is still 98.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:07:45,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.59ms. Allocated memory is still 123.7MB. Free memory was 88.5MB in the beginning and 68.4MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 12:07:45,922 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.72ms. Allocated memory is still 123.7MB. Free memory was 68.4MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:07:45,922 INFO L158 Benchmark]: Boogie Preprocessor took 20.71ms. Allocated memory is still 123.7MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:07:45,923 INFO L158 Benchmark]: RCFGBuilder took 480.79ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 64.3MB in the beginning and 113.6MB in the end (delta: -49.4MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-12-14 12:07:45,923 INFO L158 Benchmark]: TraceAbstraction took 36727.85ms. Allocated memory was 148.9MB in the beginning and 13.1GB in the end (delta: 13.0GB). Free memory was 112.8MB in the beginning and 7.9GB in the end (delta: -7.8GB). Peak memory consumption was 5.8GB. Max. memory is 16.1GB. [2022-12-14 12:07:45,923 INFO L158 Benchmark]: Witness Printer took 75.31ms. Allocated memory is still 13.1GB. Free memory was 7.9GB in the beginning and 7.9GB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 12:07:45,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 123.7MB. Free memory is still 98.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.59ms. Allocated memory is still 123.7MB. Free memory was 88.5MB in the beginning and 68.4MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.72ms. Allocated memory is still 123.7MB. Free memory was 68.4MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.71ms. Allocated memory is still 123.7MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 480.79ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 64.3MB in the beginning and 113.6MB in the end (delta: -49.4MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * TraceAbstraction took 36727.85ms. Allocated memory was 148.9MB in the beginning and 13.1GB in the end (delta: 13.0GB). Free memory was 112.8MB in the beginning and 7.9GB in the end (delta: -7.8GB). Peak memory consumption was 5.8GB. Max. memory is 16.1GB. * Witness Printer took 75.31ms. Allocated memory is still 13.1GB. Free memory was 7.9GB in the beginning and 7.9GB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 257 PlacesBefore, 115 PlacesAfterwards, 252 TransitionsBefore, 104 TransitionsAfterwards, 10592 CoEnabledTransitionPairs, 7 FixpointIterations, 103 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 13 ConcurrentYvCompositions, 6 ChoiceCompositions, 167 TotalNumberOfCompositions, 65945 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40410, independent: 39560, independent conditional: 0, independent unconditional: 39560, dependent: 850, dependent conditional: 0, dependent unconditional: 850, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8444, independent: 8321, independent conditional: 0, independent unconditional: 8321, dependent: 123, dependent conditional: 0, dependent unconditional: 123, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8444, independent: 8291, independent conditional: 0, independent unconditional: 8291, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 153, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 123, dependent conditional: 0, dependent unconditional: 123, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 222, independent: 55, independent conditional: 0, independent unconditional: 55, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 40410, independent: 31239, independent conditional: 0, independent unconditional: 31239, dependent: 727, dependent conditional: 0, dependent unconditional: 727, unknown: 8444, unknown conditional: 0, unknown unconditional: 8444] , Statistics on independence cache: Total cache size (in pairs): 3170, Positive cache size: 3095, Positive conditional cache size: 0, Positive unconditional cache size: 3095, Negative cache size: 75, Negative conditional cache size: 0, Negative unconditional cache size: 75, 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: 241]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L38] 0 unsigned int x_0, y_1, x_8, y_9; [L39] 0 _Bool f1_2, f2_3, f1_10, f2_11; [L40] 0 unsigned int temp_4, temp_5, temp_6, temp_7, temp_12, temp_13, temp_14, temp_15; [L212] 0 pthread_t t1, t4; [L215] 0 x_0 = __VERIFIER_nondet_uint() [L216] 0 y_1 = __VERIFIER_nondet_uint() [L217] 0 x_8 = __VERIFIER_nondet_uint() [L218] 0 y_9 = __VERIFIER_nondet_uint() [L219] 0 temp_4 = __VERIFIER_nondet_uint() [L220] 0 temp_5 = __VERIFIER_nondet_uint() [L221] 0 temp_6 = __VERIFIER_nondet_uint() [L222] 0 temp_7 = __VERIFIER_nondet_uint() [L223] 0 temp_12 = __VERIFIER_nondet_uint() [L224] 0 temp_13 = __VERIFIER_nondet_uint() [L225] 0 temp_14 = __VERIFIER_nondet_uint() [L226] 0 temp_15 = __VERIFIER_nondet_uint() [L227] 0 f1_2 = __VERIFIER_nondet_bool() [L228] 0 f2_3 = __VERIFIER_nondet_bool() [L229] 0 f1_10 = __VERIFIER_nondet_bool() [L230] 0 f2_11 = __VERIFIER_nondet_bool() [L233] CALL 0 assume_abort_if_not( ( x_0 == x_8 ) && ( y_1 == y_9 ) ) [L35] COND FALSE 0 !(!cond) [L233] RET 0 assume_abort_if_not( ( x_0 == x_8 ) && ( y_1 == y_9 ) ) [L235] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [pthread_create(&t1, 0, thread1, 0)=2147483642, t1={5:0}, t4={6:0}, x_0=0, x_8=0, y_1=0, y_9=-4294967296] [L112] 1 pthread_t t2, t3; VAL [t2={7:0}, t3={8:0}, x_0=0, x_8=0, y_1=0, y_9=-4294967296] [L236] FCALL, FORK 0 pthread_create(&t4, 0, thread4, 0) VAL [pthread_create(&t4, 0, thread4, 0)=2147483643, t1={5:0}, t2={7:0}, t3={8:0}, t4={6:0}, x_0=0, x_8=0, y_1=0, y_9=-4294967296] [L237] 0 \read(t1) VAL [\read(t1)=2147483642, t1={5:0}, t2={7:0}, t3={8:0}, t4={6:0}, x_0=0, x_8=0, y_1=0, y_9=-4294967296] [L115] 1 f1_2 = 0 [L116] 1 f2_3 = 0 [L119] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [f1_2=0, f2_3=0, pthread_create(&t2, 0, thread2, 0)=2147483644, t2={7:0}, t3={8:0}, x_0=0, x_8=0, y_1=0, y_9=-4294967296] [L44] COND TRUE 3 __VERIFIER_nondet_bool() [L46] 3 temp_4 = x_0 VAL [f1_2=0, f2_3=0, pthread_create(&t2, 0, thread2, 0)=2147483644, t2={7:0}, t3={8:0}, temp_4=0, x_0=0, x_8=0, y_1=0, y_9=-4294967296] [L49] 3 x_0 = temp_4 + 1 VAL [f1_2=0, f2_3=0, pthread_create(&t2, 0, thread2, 0)=2147483644, t2={7:0}, t3={8:0}, temp_4=0, x_0=1, x_8=0, y_1=0, y_9=-4294967296] [L53] 3 f1_2 = 1 VAL [f1_2=1, f2_3=0, pthread_create(&t2, 0, thread2, 0)=2147483644, t2={7:0}, t3={8:0}, temp_4=0, x_0=1, x_8=0, y_1=0, y_9=-4294967296] [L120] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [f1_2=1, f2_3=0, pthread_create(&t3, 0, thread3, 0)=2147483645, t2={7:0}, t3={8:0}, temp_4=0, x_0=1, x_8=0, y_1=0, y_9=-4294967296] [L78] COND TRUE 4 __VERIFIER_nondet_bool() [L80] 4 temp_6 = y_1 VAL [f1_2=1, f2_3=0, pthread_create(&t3, 0, thread3, 0)=2147483645, t2={7:0}, t3={8:0}, temp_4=0, temp_6=0, x_0=1, x_8=0, y_1=0, y_9=-4294967296] [L121] 1 \read(t2) VAL [\read(t2)=2147483644, f1_2=1, f2_3=0, t2={7:0}, t3={8:0}, temp_4=0, temp_6=0, x_0=1, x_8=0, y_1=0, y_9=-4294967296] [L83] 4 y_1 = temp_6 + 1 VAL [\read(t2)=2147483644, f1_2=1, f2_3=0, t2={7:0}, t3={8:0}, temp_4=0, temp_6=0, x_0=1, x_8=0, y_1=1, y_9=-4294967296] [L87] 4 f2_3 = 1 VAL [\read(t2)=2147483644, f1_2=1, f2_3=1, t2={7:0}, t3={8:0}, temp_4=0, temp_6=0, x_0=1, x_8=0, y_1=1, y_9=-4294967296] [L90] CALL 4 assume_abort_if_not(f1_2) [L35] COND FALSE 4 !(!cond) [L90] RET 4 assume_abort_if_not(f1_2) [L56] CALL 3 assume_abort_if_not(f2_3) [L35] COND FALSE 3 !(!cond) [L56] RET 3 assume_abort_if_not(f2_3) [L94] 4 temp_7 = x_0 VAL [\read(t2)=2147483644, f1_2=1, f2_3=1, t2={7:0}, t3={8:0}, temp_4=0, temp_6=0, temp_7=1, x_0=1, x_8=0, y_1=1, y_9=-4294967296] [L97] 4 x_0 = temp_7 + 1 VAL [\read(t2)=2147483644, f1_2=1, f2_3=1, t2={7:0}, t3={8:0}, temp_4=0, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=1, y_9=-4294967296] [L60] 3 temp_5 = y_1 VAL [\read(t2)=2147483644, f1_2=1, f2_3=1, t2={7:0}, t3={8:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=1, y_9=-4294967296] [L63] 3 y_1 = temp_5 + 1 VAL [\read(t2)=2147483644, f1_2=1, f2_3=1, t2={7:0}, t3={8:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L101] 4 f2_3 = 0 VAL [\read(t2)=2147483644, f1_2=1, f2_3=0, t2={7:0}, t3={8:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L67] 3 f1_2 = 0 VAL [\read(t2)=2147483644, f1_2=0, f2_3=0, t2={7:0}, t3={8:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L104] CALL 4 assume_abort_if_not(!f1_2) [L35] COND FALSE 4 !(!cond) [L104] RET 4 assume_abort_if_not(!f1_2) [L78] COND FALSE 4 !(__VERIFIER_nondet_bool()) [L108] 4 return 0; [L70] CALL 3 assume_abort_if_not(!f2_3) [L35] COND FALSE 3 !(!cond) [L70] RET 3 assume_abort_if_not(!f2_3) [L44] COND FALSE 3 !(__VERIFIER_nondet_bool()) [L74] 3 return 0; [L121] FCALL, JOIN 3 pthread_join(t2, 0) VAL [\read(t2)=2147483644, f1_2=0, f2_3=0, t2={7:0}, t3={8:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L122] 1 \read(t3) VAL [\read(t3)=2147483645, f1_2=0, f2_3=0, t2={7:0}, t3={8:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L122] FCALL, JOIN 4 pthread_join(t3, 0) VAL [\read(t3)=2147483645, f1_2=0, f2_3=0, t2={7:0}, t3={8:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L124] 1 return 0; [L124] 1 return 0; [L124] 1 return 0; [L237] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\read(t1)=2147483642, \result={0:0}, f1_2=0, f2_3=0, t1={5:0}, t4={6:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L238] 0 \read(t4) VAL [\read(t4)=2147483643, \result={0:0}, f1_2=0, f2_3=0, t1={5:0}, t4={6:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L196] 2 pthread_t t5, t6; [L199] 2 f1_10 = 0 [L200] 2 f2_11 = 0 VAL [\result={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t5={9:0}, t6={3:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L203] FCALL, FORK 2 pthread_create(&t5, 0, thread5, 0) VAL [\result={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, pthread_create(&t5, 0, thread5, 0)=2147483646, t5={9:0}, t6={3:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L204] FCALL, FORK 2 pthread_create(&t6, 0, thread6, 0) VAL [\result={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, pthread_create(&t6, 0, thread6, 0)=2147483647, t5={9:0}, t6={3:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L162] COND FALSE 6 !(__VERIFIER_nondet_bool()) [L192] 6 return 0; [L128] COND FALSE 5 !(__VERIFIER_nondet_bool()) [L158] 5 return 0; [L205] 2 \read(t5) VAL [\read(t5)=2147483646, \result={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t5={9:0}, t6={3:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L205] FCALL, JOIN 5 pthread_join(t5, 0) VAL [\read(t5)=2147483646, \result={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t5={9:0}, t6={3:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L206] 2 \read(t6) VAL [\read(t6)=2147483647, \result={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t5={9:0}, t6={3:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L206] FCALL, JOIN 6 pthread_join(t6, 0) VAL [\read(t6)=2147483647, \result={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t5={9:0}, t6={3:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L208] 2 return 0; [L208] 2 return 0; VAL [\result={0:0}, \result={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t6={3:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L208] 2 return 0; [L238] FCALL, JOIN 2 pthread_join(t4, 0) VAL [\read(t4)=2147483643, \result={0:0}, \result={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t1={5:0}, t4={6:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] [L240] CALL 0 assume_abort_if_not( !( ( x_0 == x_8 ) && ( y_1 == y_9 ) ) ) [L35] COND FALSE 0 !(!cond) [L240] RET 0 assume_abort_if_not( !( ( x_0 == x_8 ) && ( y_1 == y_9 ) ) ) [L241] 0 reach_error() VAL [\result={0:0}, \result={0:0}, f1_10=0, f1_2=0, f2_11=0, f2_3=0, t1={5:0}, t4={6:0}, temp_4=0, temp_5=1, temp_6=0, temp_7=1, x_0=2, x_8=0, y_1=2, y_9=-4294967296] - UnprovableResult [Line: 120]: 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: 119]: 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: 235]: 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: 236]: 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: 204]: 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: 203]: 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: 120]: 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: 119]: 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: 203]: 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: 204]: 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 13 procedures, 339 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 36.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 2.4s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 267 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 267 mSDsluCounter, 446 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 154 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 520 IncrementalHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 292 mSDtfsCounter, 520 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113828occurred in iteration=1, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 17.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 2856 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 1868 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 4/4 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 12:07:45,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d76c4825-b5b0-430f-be68-afc72a1ff661/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