./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_634c1f8d-afac-421e-b4a7-a2ba58708261/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634c1f8d-afac-421e-b4a7-a2ba58708261/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634c1f8d-afac-421e-b4a7-a2ba58708261/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634c1f8d-afac-421e-b4a7-a2ba58708261/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634c1f8d-afac-421e-b4a7-a2ba58708261/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634c1f8d-afac-421e-b4a7-a2ba58708261/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 --- 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-38b53e6 [2022-11-25 23:36:02,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:36:02,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:36:02,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:36:02,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:36:02,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:36:02,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:36:02,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:36:02,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:36:02,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:36:02,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:36:02,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:36:02,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:36:02,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:36:02,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:36:02,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:36:02,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:36:02,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:36:02,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:36:02,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:36:02,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:36:02,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:36:02,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:36:02,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:36:02,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:36:02,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:36:02,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:36:02,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:36:02,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:36:02,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:36:02,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:36:02,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:36:02,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:36:02,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:36:02,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:36:02,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:36:02,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:36:02,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:36:02,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:36:02,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:36:02,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:36:02,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634c1f8d-afac-421e-b4a7-a2ba58708261/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 23:36:02,568 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:36:02,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:36:02,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:36:02,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:36:02,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:36:02,570 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:36:02,570 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:36:02,571 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:36:02,571 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:36:02,571 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:36:02,571 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:36:02,572 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:36:02,572 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:36:02,572 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:36:02,572 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:36:02,573 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:36:02,573 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:36:02,573 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:36:02,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:36:02,574 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:36:02,575 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:36:02,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:36:02,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:36:02,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:36:02,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:36:02,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:36:02,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:36:02,576 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:36:02,577 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:36:02,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:36:02,577 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:36:02,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:36:02,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:36:02,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:36:02,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:36:02,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:36:02,579 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:36:02,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:36:02,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:36:02,579 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:36:02,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:36:02,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:36:02,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:36:02,580 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_634c1f8d-afac-421e-b4a7-a2ba58708261/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634c1f8d-afac-421e-b4a7-a2ba58708261/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 [2022-11-25 23:36:02,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:36:02,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:36:02,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:36:02,986 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:36:02,986 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:36:02,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634c1f8d-afac-421e-b4a7-a2ba58708261/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2022-11-25 23:36:06,066 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:36:06,306 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:36:06,306 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634c1f8d-afac-421e-b4a7-a2ba58708261/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2022-11-25 23:36:06,316 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634c1f8d-afac-421e-b4a7-a2ba58708261/bin/utaipan-ByfvJB40ur/data/45e5a1e79/ad8041f8d0db4ec6b3c4ab4edcee2da8/FLAG0c2aa1aff [2022-11-25 23:36:06,334 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634c1f8d-afac-421e-b4a7-a2ba58708261/bin/utaipan-ByfvJB40ur/data/45e5a1e79/ad8041f8d0db4ec6b3c4ab4edcee2da8 [2022-11-25 23:36:06,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:36:06,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:36:06,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:36:06,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:36:06,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:36:06,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:36:06" (1/1) ... [2022-11-25 23:36:06,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25259834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:06, skipping insertion in model container [2022-11-25 23:36:06,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:36:06" (1/1) ... [2022-11-25 23:36:06,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:36:06,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:36:06,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,639 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,642 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,642 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,648 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,649 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,661 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,662 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,663 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,664 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,680 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,688 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,689 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,691 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,692 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,693 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,694 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,695 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,696 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,698 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,699 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,702 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,702 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,709 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,710 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,711 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,721 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_634c1f8d-afac-421e-b4a7-a2ba58708261/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2022-11-25 23:36:06,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:36:06,742 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:36:06,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,767 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,767 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,769 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,774 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,775 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,779 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,780 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,782 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,802 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,802 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 23:36:06,810 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 23:36:06,816 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_634c1f8d-afac-421e-b4a7-a2ba58708261/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2022-11-25 23:36:06,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:36:06,836 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:36:06,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:06 WrapperNode [2022-11-25 23:36:06,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:36:06,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:36:06,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:36:06,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:36:06,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:06" (1/1) ... [2022-11-25 23:36:06,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:06" (1/1) ... [2022-11-25 23:36:06,906 INFO L138 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 269 [2022-11-25 23:36:06,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:36:06,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:36:06,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:36:06,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:36:06,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:06" (1/1) ... [2022-11-25 23:36:06,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:06" (1/1) ... [2022-11-25 23:36:06,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:06" (1/1) ... [2022-11-25 23:36:06,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:06" (1/1) ... [2022-11-25 23:36:06,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:06" (1/1) ... [2022-11-25 23:36:06,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:06" (1/1) ... [2022-11-25 23:36:06,934 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:06" (1/1) ... [2022-11-25 23:36:06,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:06" (1/1) ... [2022-11-25 23:36:06,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:36:06,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:36:06,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:36:06,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:36:06,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:06" (1/1) ... [2022-11-25 23:36:06,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:36:06,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634c1f8d-afac-421e-b4a7-a2ba58708261/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:36:06,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634c1f8d-afac-421e-b4a7-a2ba58708261/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:36:06,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_634c1f8d-afac-421e-b4a7-a2ba58708261/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:36:07,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:36:07,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:36:07,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:36:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:36:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 23:36:07,032 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 23:36:07,032 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 23:36:07,032 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 23:36:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 23:36:07,033 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 23:36:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-25 23:36:07,033 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-25 23:36:07,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:36:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-25 23:36:07,034 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-25 23:36:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-25 23:36:07,034 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-25 23:36:07,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 23:36:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 23:36:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:36:07,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:36:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:36:07,037 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 23:36:07,153 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:36:07,156 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:36:07,686 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:36:07,792 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:36:07,793 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:36:07,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:36:07 BoogieIcfgContainer [2022-11-25 23:36:07,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:36:07,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:36:07,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:36:07,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:36:07,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:36:06" (1/3) ... [2022-11-25 23:36:07,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecc27b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:36:07, skipping insertion in model container [2022-11-25 23:36:07,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:06" (2/3) ... [2022-11-25 23:36:07,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ecc27b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:36:07, skipping insertion in model container [2022-11-25 23:36:07,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:36:07" (3/3) ... [2022-11-25 23:36:07,812 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2022-11-25 23:36:07,828 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 23:36:07,841 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:36:07,841 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-25 23:36:07,841 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 23:36:08,015 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-25 23:36:08,053 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 23:36:08,070 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 250 transitions, 572 flow [2022-11-25 23:36:08,073 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 250 transitions, 572 flow [2022-11-25 23:36:08,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 250 transitions, 572 flow [2022-11-25 23:36:08,181 INFO L130 PetriNetUnfolder]: 8/222 cut-off events. [2022-11-25 23:36:08,182 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-25 23:36:08,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 222 events. 8/222 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 341 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 189. Up to 3 conditions per place. [2022-11-25 23:36:08,203 INFO L119 LiptonReduction]: Number of co-enabled transitions 10344 [2022-11-25 23:36:16,181 INFO L134 LiptonReduction]: Checked pairs total: 58128 [2022-11-25 23:36:16,181 INFO L136 LiptonReduction]: Total number of compositions: 201 [2022-11-25 23:36:16,191 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 101 transitions, 274 flow [2022-11-25 23:36:22,053 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 111682 states, 111054 states have (on average 4.83914131863778) internal successors, (537406), 111681 states have internal predecessors, (537406), 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) [2022-11-25 23:36:22,078 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:36:22,084 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;@3b8bf6fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:36:22,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2022-11-25 23:36:22,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 111682 states, 111054 states have (on average 4.83914131863778) internal successors, (537406), 111681 states have internal predecessors, (537406), 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) [2022-11-25 23:36:22,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:36:22,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:22,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:36:22,263 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:36:22,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:22,268 INFO L85 PathProgramCache]: Analyzing trace with hash 899637486, now seen corresponding path program 1 times [2022-11-25 23:36:22,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:22,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286438338] [2022-11-25 23:36:22,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:22,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:22,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:36:22,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:22,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286438338] [2022-11-25 23:36:22,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286438338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:22,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:22,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:36:22,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570993012] [2022-11-25 23:36:22,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:22,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:36:22,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:22,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:36:22,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:36:22,817 INFO L87 Difference]: Start difference. First operand has 111682 states, 111054 states have (on average 4.83914131863778) internal successors, (537406), 111681 states have internal predecessors, (537406), 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 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:36:26,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:26,524 INFO L93 Difference]: Finished difference Result 111682 states and 536460 transitions. [2022-11-25 23:36:26,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:36:26,528 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-25 23:36:26,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:28,307 INFO L225 Difference]: With dead ends: 111682 [2022-11-25 23:36:28,308 INFO L226 Difference]: Without dead ends: 111178 [2022-11-25 23:36:28,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:36:28,316 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:28,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:36:29,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111178 states. [2022-11-25 23:36:35,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111178 to 111178. [2022-11-25 23:36:35,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111178 states, 110554 states have (on average 4.829847857155779) internal successors, (533959), 111177 states have internal predecessors, (533959), 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) [2022-11-25 23:36:36,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111178 states to 111178 states and 533959 transitions. [2022-11-25 23:36:36,973 INFO L78 Accepts]: Start accepts. Automaton has 111178 states and 533959 transitions. Word has length 5 [2022-11-25 23:36:36,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:36,973 INFO L495 AbstractCegarLoop]: Abstraction has 111178 states and 533959 transitions. [2022-11-25 23:36:36,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:36:36,974 INFO L276 IsEmpty]: Start isEmpty. Operand 111178 states and 533959 transitions. [2022-11-25 23:36:36,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:36:36,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:36,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:36,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:36:36,976 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:36:36,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:36,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1215287322, now seen corresponding path program 1 times [2022-11-25 23:36:36,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:36,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927379772] [2022-11-25 23:36:36,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:36,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:37,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:36:37,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:37,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927379772] [2022-11-25 23:36:37,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927379772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:37,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:37,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:36:37,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926088779] [2022-11-25 23:36:37,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:37,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:36:37,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:37,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:36:37,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:36:37,152 INFO L87 Difference]: Start difference. First operand 111178 states and 533959 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-25 23:36:38,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:38,698 INFO L93 Difference]: Finished difference Result 91744 states and 437000 transitions. [2022-11-25 23:36:38,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:36:38,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-11-25 23:36:38,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:40,485 INFO L225 Difference]: With dead ends: 91744 [2022-11-25 23:36:40,485 INFO L226 Difference]: Without dead ends: 91744 [2022-11-25 23:36:40,486 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 [2022-11-25 23:36:40,487 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:40,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 21 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:36:40,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91744 states. [2022-11-25 23:36:44,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91744 to 91744. [2022-11-25 23:36:44,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91744 states, 91345 states have (on average 4.784060430237013) internal successors, (437000), 91743 states have internal predecessors, (437000), 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) [2022-11-25 23:36:44,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91744 states to 91744 states and 437000 transitions. [2022-11-25 23:36:44,993 INFO L78 Accepts]: Start accepts. Automaton has 91744 states and 437000 transitions. Word has length 9 [2022-11-25 23:36:44,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:44,994 INFO L495 AbstractCegarLoop]: Abstraction has 91744 states and 437000 transitions. [2022-11-25 23:36:44,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-25 23:36:44,995 INFO L276 IsEmpty]: Start isEmpty. Operand 91744 states and 437000 transitions. [2022-11-25 23:36:44,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:36:44,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:44,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:44,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:36:44,997 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:36:44,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:44,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1215287323, now seen corresponding path program 1 times [2022-11-25 23:36:44,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:44,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270676854] [2022-11-25 23:36:44,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:44,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:46,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:36:46,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:46,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270676854] [2022-11-25 23:36:46,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270676854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:46,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:46,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:36:46,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498356465] [2022-11-25 23:36:46,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:46,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:36:46,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:46,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:36:46,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:36:46,251 INFO L87 Difference]: Start difference. First operand 91744 states and 437000 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-11-25 23:36:47,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:47,467 INFO L93 Difference]: Finished difference Result 81316 states and 383320 transitions. [2022-11-25 23:36:47,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:36:47,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-11-25 23:36:47,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:48,840 INFO L225 Difference]: With dead ends: 81316 [2022-11-25 23:36:48,840 INFO L226 Difference]: Without dead ends: 81316 [2022-11-25 23:36:48,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:36:48,841 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 135 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:48,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 112 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 23:36:49,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81316 states. [2022-11-25 23:36:51,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81316 to 81316. [2022-11-25 23:36:52,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81316 states, 80992 states have (on average 4.732813117344923) internal successors, (383320), 81315 states have internal predecessors, (383320), 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) [2022-11-25 23:36:53,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81316 states to 81316 states and 383320 transitions. [2022-11-25 23:36:53,565 INFO L78 Accepts]: Start accepts. Automaton has 81316 states and 383320 transitions. Word has length 9 [2022-11-25 23:36:53,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:53,565 INFO L495 AbstractCegarLoop]: Abstraction has 81316 states and 383320 transitions. [2022-11-25 23:36:53,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-11-25 23:36:53,566 INFO L276 IsEmpty]: Start isEmpty. Operand 81316 states and 383320 transitions. [2022-11-25 23:36:53,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:36:53,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:53,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:53,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:36:53,569 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:36:53,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:53,569 INFO L85 PathProgramCache]: Analyzing trace with hash -980803299, now seen corresponding path program 1 times [2022-11-25 23:36:53,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:53,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818247501] [2022-11-25 23:36:53,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:53,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:53,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:36:53,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:53,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818247501] [2022-11-25 23:36:53,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818247501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:53,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:53,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:36:53,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230210186] [2022-11-25 23:36:53,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:53,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:36:53,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:53,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:36:53,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:36:53,712 INFO L87 Difference]: Start difference. First operand 81316 states and 383320 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-25 23:36:54,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:54,494 INFO L93 Difference]: Finished difference Result 62356 states and 287616 transitions. [2022-11-25 23:36:54,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:36:54,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-11-25 23:36:54,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:55,875 INFO L225 Difference]: With dead ends: 62356 [2022-11-25 23:36:55,875 INFO L226 Difference]: Without dead ends: 62356 [2022-11-25 23:36:55,876 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 [2022-11-25 23:36:55,882 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 49 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:55,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 39 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:36:56,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62356 states. [2022-11-25 23:36:58,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62356 to 62356. [2022-11-25 23:36:58,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62356 states, 62132 states have (on average 4.629112212708427) internal successors, (287616), 62355 states have internal predecessors, (287616), 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) [2022-11-25 23:36:58,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62356 states to 62356 states and 287616 transitions. [2022-11-25 23:36:58,908 INFO L78 Accepts]: Start accepts. Automaton has 62356 states and 287616 transitions. Word has length 10 [2022-11-25 23:36:58,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:58,908 INFO L495 AbstractCegarLoop]: Abstraction has 62356 states and 287616 transitions. [2022-11-25 23:36:58,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-25 23:36:58,909 INFO L276 IsEmpty]: Start isEmpty. Operand 62356 states and 287616 transitions. [2022-11-25 23:36:58,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:36:58,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:58,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:58,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:36:58,912 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread5Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:36:58,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:58,913 INFO L85 PathProgramCache]: Analyzing trace with hash -2069680887, now seen corresponding path program 1 times [2022-11-25 23:36:58,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:58,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066429643] [2022-11-25 23:36:58,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:58,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:59,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:36:59,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:59,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066429643] [2022-11-25 23:36:59,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066429643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:59,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:59,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:36:59,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659832346] [2022-11-25 23:36:59,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:59,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:36:59,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:59,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:36:59,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:36:59,116 INFO L87 Difference]: Start difference. First operand 62356 states and 287616 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:37:00,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:37:00,808 INFO L93 Difference]: Finished difference Result 51450 states and 235184 transitions. [2022-11-25 23:37:00,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:37:00,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-25 23:37:00,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:37:01,261 INFO L225 Difference]: With dead ends: 51450 [2022-11-25 23:37:01,262 INFO L226 Difference]: Without dead ends: 51450 [2022-11-25 23:37:01,262 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 [2022-11-25 23:37:01,263 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 62 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:37:01,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 21 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:37:01,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51450 states.