./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i --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_a6d967a2-f18c-4138-acfc-5119bdadbd81/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d967a2-f18c-4138-acfc-5119bdadbd81/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_a6d967a2-f18c-4138-acfc-5119bdadbd81/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d967a2-f18c-4138-acfc-5119bdadbd81/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d967a2-f18c-4138-acfc-5119bdadbd81/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_a6d967a2-f18c-4138-acfc-5119bdadbd81/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 932dbff5eab91f48afae7fbaa75574114ec0af0a04ac9352bdcfc8911a65e56a --- 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 [2022-11-26 00:04:23,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:04:23,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:04:23,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:04:23,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:04:23,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:04:23,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:04:23,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:04:23,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:04:23,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:04:23,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:04:23,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:04:23,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:04:23,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:04:23,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:04:23,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:04:23,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:04:23,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:04:23,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:04:23,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:04:23,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:04:23,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:04:23,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:04:23,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:04:23,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:04:23,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:04:23,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:04:23,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:04:23,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:04:23,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:04:23,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:04:23,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:04:23,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:04:23,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:04:23,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:04:23,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:04:23,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:04:23,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:04:23,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:04:23,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:04:23,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:04:23,552 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d967a2-f18c-4138-acfc-5119bdadbd81/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-26 00:04:23,598 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:04:23,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:04:23,607 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:04:23,607 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:04:23,608 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:04:23,608 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:04:23,609 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:04:23,609 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:04:23,609 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:04:23,609 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:04:23,611 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:04:23,611 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:04:23,611 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:04:23,612 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:04:23,612 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:04:23,612 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:04:23,613 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:04:23,613 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:04:23,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:04:23,614 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:04:23,614 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:04:23,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:04:23,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:04:23,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:04:23,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:04:23,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:04:23,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:04:23,616 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:04:23,617 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:04:23,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:04:23,617 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:04:23,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:04:23,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:04:23,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:04:23,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:04:23,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:04:23,619 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:04:23,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:04:23,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:04:23,620 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:04:23,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:04:23,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:04:23,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:04:23,621 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_a6d967a2-f18c-4138-acfc-5119bdadbd81/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d967a2-f18c-4138-acfc-5119bdadbd81/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 932dbff5eab91f48afae7fbaa75574114ec0af0a04ac9352bdcfc8911a65e56a [2022-11-26 00:04:23,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:04:24,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:04:24,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:04:24,020 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:04:24,021 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:04:24,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d967a2-f18c-4138-acfc-5119bdadbd81/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i [2022-11-26 00:04:27,415 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:04:27,765 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:04:27,766 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d967a2-f18c-4138-acfc-5119bdadbd81/sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i [2022-11-26 00:04:27,795 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d967a2-f18c-4138-acfc-5119bdadbd81/bin/utaipan-ByfvJB40ur/data/df32eb329/4a4c728c779a45d28ada28f84b9b5365/FLAGf07992fbe [2022-11-26 00:04:27,823 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d967a2-f18c-4138-acfc-5119bdadbd81/bin/utaipan-ByfvJB40ur/data/df32eb329/4a4c728c779a45d28ada28f84b9b5365 [2022-11-26 00:04:27,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:04:27,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:04:27,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:04:27,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:04:27,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:04:27,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:27" (1/1) ... [2022-11-26 00:04:27,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@603bedbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27, skipping insertion in model container [2022-11-26 00:04:27,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:27" (1/1) ... [2022-11-26 00:04:27,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:04:27,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:04:28,119 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_a6d967a2-f18c-4138-acfc-5119bdadbd81/sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-26 00:04:28,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,484 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,485 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,486 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,489 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,490 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:04:28,505 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:04:28,521 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_a6d967a2-f18c-4138-acfc-5119bdadbd81/sv-benchmarks/c/pthread-wmm/mix006_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-26 00:04:28,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,569 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,574 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,592 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,592 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,604 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,641 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:04:28,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:04:28,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:04:28,715 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:04:28,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:28 WrapperNode [2022-11-26 00:04:28,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:04:28,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:04:28,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:04:28,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:04:28,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:28" (1/1) ... [2022-11-26 00:04:28,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:28" (1/1) ... [2022-11-26 00:04:28,805 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 132 [2022-11-26 00:04:28,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:04:28,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:04:28,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:04:28,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:04:28,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:28" (1/1) ... [2022-11-26 00:04:28,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:28" (1/1) ... [2022-11-26 00:04:28,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:28" (1/1) ... [2022-11-26 00:04:28,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:28" (1/1) ... [2022-11-26 00:04:28,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:28" (1/1) ... [2022-11-26 00:04:28,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:28" (1/1) ... [2022-11-26 00:04:28,839 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:28" (1/1) ... [2022-11-26 00:04:28,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:28" (1/1) ... [2022-11-26 00:04:28,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:04:28,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:04:28,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:04:28,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:04:28,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:28" (1/1) ... [2022-11-26 00:04:28,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:04:28,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d967a2-f18c-4138-acfc-5119bdadbd81/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:04:28,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d967a2-f18c-4138-acfc-5119bdadbd81/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:04:28,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d967a2-f18c-4138-acfc-5119bdadbd81/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:04:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:04:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-26 00:04:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:04:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:04:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:04:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-26 00:04:28,966 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-26 00:04:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-26 00:04:28,966 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-26 00:04:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-26 00:04:28,967 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-26 00:04:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:04:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-26 00:04:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:04:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:04:28,970 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:04:29,240 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:04:29,243 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:04:29,661 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:04:29,881 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:04:29,881 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:04:29,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:29 BoogieIcfgContainer [2022-11-26 00:04:29,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:04:29,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:04:29,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:04:29,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:04:29,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:04:27" (1/3) ... [2022-11-26 00:04:29,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27032053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:29, skipping insertion in model container [2022-11-26 00:04:29,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:28" (2/3) ... [2022-11-26 00:04:29,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27032053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:29, skipping insertion in model container [2022-11-26 00:04:29,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:29" (3/3) ... [2022-11-26 00:04:29,896 INFO L112 eAbstractionObserver]: Analyzing ICFG mix006_power.oepc_pso.oepc_rmo.oepc.i [2022-11-26 00:04:29,907 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:04:29,922 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:04:29,922 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-26 00:04:29,923 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:04:30,080 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:04:30,123 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:04:30,143 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 123 transitions, 261 flow [2022-11-26 00:04:30,146 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 123 transitions, 261 flow [2022-11-26 00:04:30,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 123 transitions, 261 flow [2022-11-26 00:04:30,213 INFO L130 PetriNetUnfolder]: 2/120 cut-off events. [2022-11-26 00:04:30,214 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:04:30,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 120 events. 2/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-11-26 00:04:30,224 INFO L119 LiptonReduction]: Number of co-enabled transitions 2808 [2022-11-26 00:04:36,254 INFO L134 LiptonReduction]: Checked pairs total: 10197 [2022-11-26 00:04:36,254 INFO L136 LiptonReduction]: Total number of compositions: 105 [2022-11-26 00:04:36,270 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 33 transitions, 81 flow [2022-11-26 00:04:36,457 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1916 states, 1890 states have (on average 3.588359788359788) internal successors, (6782), 1915 states have internal predecessors, (6782), 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) [2022-11-26 00:04:36,488 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:04:36,496 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;@7438a76b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:04:36,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-26 00:04:36,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 1916 states, 1890 states have (on average 3.588359788359788) internal successors, (6782), 1915 states have internal predecessors, (6782), 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) [2022-11-26 00:04:36,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:04:36,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:36,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:04:36,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-26 00:04:36,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:36,515 INFO L85 PathProgramCache]: Analyzing trace with hash 510158795, now seen corresponding path program 1 times [2022-11-26 00:04:36,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:36,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693735254] [2022-11-26 00:04:36,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:36,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:36,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:04:36,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:36,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693735254] [2022-11-26 00:04:36,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693735254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:36,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:36,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:04:36,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157046313] [2022-11-26 00:04:36,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:36,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:04:36,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:36,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:04:36,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:04:36,901 INFO L87 Difference]: Start difference. First operand has 1916 states, 1890 states have (on average 3.588359788359788) internal successors, (6782), 1915 states have internal predecessors, (6782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:37,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:37,115 INFO L93 Difference]: Finished difference Result 1092 states and 3285 transitions. [2022-11-26 00:04:37,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:04:37,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:04:37,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:37,151 INFO L225 Difference]: With dead ends: 1092 [2022-11-26 00:04:37,151 INFO L226 Difference]: Without dead ends: 1092 [2022-11-26 00:04:37,152 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 [2022-11-26 00:04:37,155 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:37,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 8 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:04:37,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2022-11-26 00:04:37,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1092. [2022-11-26 00:04:37,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 1074 states have (on average 3.058659217877095) internal successors, (3285), 1091 states have internal predecessors, (3285), 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) [2022-11-26 00:04:37,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 3285 transitions. [2022-11-26 00:04:37,275 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 3285 transitions. Word has length 5 [2022-11-26 00:04:37,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:37,276 INFO L495 AbstractCegarLoop]: Abstraction has 1092 states and 3285 transitions. [2022-11-26 00:04:37,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:37,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 3285 transitions. [2022-11-26 00:04:37,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:04:37,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:37,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:04:37,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:04:37,280 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-26 00:04:37,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:37,281 INFO L85 PathProgramCache]: Analyzing trace with hash -516655825, now seen corresponding path program 1 times [2022-11-26 00:04:37,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:37,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521882106] [2022-11-26 00:04:37,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:37,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:37,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:04:37,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:37,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521882106] [2022-11-26 00:04:37,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521882106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:37,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:37,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:04:37,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626797837] [2022-11-26 00:04:37,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:37,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:04:37,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:37,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:04:37,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:04:37,511 INFO L87 Difference]: Start difference. First operand 1092 states and 3285 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:37,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:37,659 INFO L93 Difference]: Finished difference Result 928 states and 2849 transitions. [2022-11-26 00:04:37,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:04:37,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-26 00:04:37,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:37,667 INFO L225 Difference]: With dead ends: 928 [2022-11-26 00:04:37,668 INFO L226 Difference]: Without dead ends: 928 [2022-11-26 00:04:37,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:04:37,669 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 31 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:37,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 16 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:04:37,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2022-11-26 00:04:37,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 928. [2022-11-26 00:04:37,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 922 states have (on average 3.09002169197397) internal successors, (2849), 927 states have internal predecessors, (2849), 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) [2022-11-26 00:04:37,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 2849 transitions. [2022-11-26 00:04:37,711 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 2849 transitions. Word has length 12 [2022-11-26 00:04:37,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:37,711 INFO L495 AbstractCegarLoop]: Abstraction has 928 states and 2849 transitions. [2022-11-26 00:04:37,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:37,712 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 2849 transitions. [2022-11-26 00:04:37,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 00:04:37,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:37,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:04:37,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:04:37,716 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-26 00:04:37,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:37,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1163537257, now seen corresponding path program 1 times [2022-11-26 00:04:37,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:37,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360642671] [2022-11-26 00:04:37,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:37,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:37,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:04:37,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:37,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360642671] [2022-11-26 00:04:37,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360642671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:37,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:37,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:04:37,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680823] [2022-11-26 00:04:37,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:37,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:04:37,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:37,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:04:37,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:04:37,828 INFO L87 Difference]: Start difference. First operand 928 states and 2849 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:38,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:38,008 INFO L93 Difference]: Finished difference Result 800 states and 2500 transitions. [2022-11-26 00:04:38,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:04:38,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-26 00:04:38,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:38,019 INFO L225 Difference]: With dead ends: 800 [2022-11-26 00:04:38,020 INFO L226 Difference]: Without dead ends: 800 [2022-11-26 00:04:38,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:04:38,021 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 27 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:38,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 12 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:04:38,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2022-11-26 00:04:38,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 800. [2022-11-26 00:04:38,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 797 states have (on average 3.136762860727729) internal successors, (2500), 799 states have internal predecessors, (2500), 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) [2022-11-26 00:04:38,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 2500 transitions. [2022-11-26 00:04:38,059 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 2500 transitions. Word has length 13 [2022-11-26 00:04:38,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:38,060 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 2500 transitions. [2022-11-26 00:04:38,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:38,060 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 2500 transitions. [2022-11-26 00:04:38,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-26 00:04:38,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:04:38,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:04:38,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:04:38,068 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-26 00:04:38,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:04:38,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1879867515, now seen corresponding path program 1 times [2022-11-26 00:04:38,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:04:38,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81105609] [2022-11-26 00:04:38,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:04:38,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:04:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:04:38,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:04:38,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:04:38,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81105609] [2022-11-26 00:04:38,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81105609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:04:38,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:04:38,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:04:38,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171738659] [2022-11-26 00:04:38,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:04:38,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:04:38,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:04:38,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:04:38,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:04:38,374 INFO L87 Difference]: Start difference. First operand 800 states and 2500 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:38,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:04:38,527 INFO L93 Difference]: Finished difference Result 788 states and 2479 transitions. [2022-11-26 00:04:38,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:04:38,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-26 00:04:38,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:04:38,528 INFO L225 Difference]: With dead ends: 788 [2022-11-26 00:04:38,528 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:04:38,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:04:38,530 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 43 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:04:38,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 12 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:04:38,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:04:38,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:04:38,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-26 00:04:38,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:04:38,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2022-11-26 00:04:38,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:04:38,532 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:04:38,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:04:38,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:04:38,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:04:38,536 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-26 00:04:38,537 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-26 00:04:38,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-26 00:04:38,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-26 00:04:38,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-26 00:04:38,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-26 00:04:38,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-26 00:04:38,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-26 00:04:38,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-26 00:04:38,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-26 00:04:38,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-26 00:04:38,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-26 00:04:38,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-26 00:04:38,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-26 00:04:38,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-26 00:04:38,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:04:38,546 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-26 00:04:38,552 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:04:38,552 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:04:38,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:04:38 BasicIcfg [2022-11-26 00:04:38,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:04:38,557 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:04:38,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:04:38,557 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:04:38,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:29" (3/4) ... [2022-11-26 00:04:38,561 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:04:38,567 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-26 00:04:38,568 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-26 00:04:38,568 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-26 00:04:38,575 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-26 00:04:38,576 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-26 00:04:38,576 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-26 00:04:38,576 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:04:38,638 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d967a2-f18c-4138-acfc-5119bdadbd81/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:04:38,639 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:04:38,640 INFO L158 Benchmark]: Toolchain (without parser) took 10806.82ms. Allocated memory was 222.3MB in the beginning and 268.4MB in the end (delta: 46.1MB). Free memory was 187.3MB in the beginning and 162.6MB in the end (delta: 24.7MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. [2022-11-26 00:04:38,640 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 144.7MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:04:38,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 882.16ms. Allocated memory is still 222.3MB. Free memory was 186.9MB in the beginning and 160.1MB in the end (delta: 26.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-26 00:04:38,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.26ms. Allocated memory is still 222.3MB. Free memory was 160.1MB in the beginning and 157.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:04:38,642 INFO L158 Benchmark]: Boogie Preprocessor took 38.45ms. Allocated memory is still 222.3MB. Free memory was 157.5MB in the beginning and 155.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:04:38,642 INFO L158 Benchmark]: RCFGBuilder took 1038.45ms. Allocated memory is still 222.3MB. Free memory was 155.4MB in the beginning and 120.3MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-26 00:04:38,642 INFO L158 Benchmark]: TraceAbstraction took 8668.63ms. Allocated memory was 222.3MB in the beginning and 268.4MB in the end (delta: 46.1MB). Free memory was 119.8MB in the beginning and 165.8MB in the end (delta: -46.0MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-11-26 00:04:38,643 INFO L158 Benchmark]: Witness Printer took 82.72ms. Allocated memory is still 268.4MB. Free memory was 165.8MB in the beginning and 162.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:04:38,645 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 144.7MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 882.16ms. Allocated memory is still 222.3MB. Free memory was 186.9MB in the beginning and 160.1MB in the end (delta: 26.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.26ms. Allocated memory is still 222.3MB. Free memory was 160.1MB in the beginning and 157.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.45ms. Allocated memory is still 222.3MB. Free memory was 157.5MB in the beginning and 155.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1038.45ms. Allocated memory is still 222.3MB. Free memory was 155.4MB in the beginning and 120.3MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8668.63ms. Allocated memory was 222.3MB in the beginning and 268.4MB in the end (delta: 46.1MB). Free memory was 119.8MB in the beginning and 165.8MB in the end (delta: -46.0MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Witness Printer took 82.72ms. Allocated memory is still 268.4MB. Free memory was 165.8MB in the beginning and 162.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.1s, 131 PlacesBefore, 42 PlacesAfterwards, 123 TransitionsBefore, 33 TransitionsAfterwards, 2808 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 1 ChoiceCompositions, 105 TotalNumberOfCompositions, 10197 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4596, independent: 4301, independent conditional: 0, independent unconditional: 4301, dependent: 295, dependent conditional: 0, dependent unconditional: 295, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2011, independent: 1951, independent conditional: 0, independent unconditional: 1951, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2011, independent: 1905, independent conditional: 0, independent unconditional: 1905, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 106, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 632, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 530, dependent conditional: 0, dependent unconditional: 530, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4596, independent: 2350, independent conditional: 0, independent unconditional: 2350, dependent: 235, dependent conditional: 0, dependent unconditional: 235, unknown: 2011, unknown conditional: 0, unknown unconditional: 2011] , Statistics on independence cache: Total cache size (in pairs): 255, Positive cache size: 228, Positive conditional cache size: 0, Positive unconditional cache size: 228, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, 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 - PositiveResult [Line: 769]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 769]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 792]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 792]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 828]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 828]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 157 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 117 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 117 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 237 IncrementalHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 20 mSDtfsCounter, 237 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1916occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-26 00:04:38,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6d967a2-f18c-4138-acfc-5119bdadbd81/bin/utaipan-ByfvJB40ur/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 Result: TRUE