./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:24:25,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:24:25,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:24:25,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:24:25,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:24:25,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:24:25,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:24:25,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:24:25,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:24:25,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:24:25,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:24:25,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:24:25,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:24:25,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:24:25,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:24:25,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:24:25,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:24:25,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:24:25,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:24:25,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:24:25,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:24:25,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:24:25,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:24:25,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:24:25,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:24:25,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:24:25,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:24:25,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:24:25,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:24:25,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:24:25,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:24:25,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:24:25,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:24:25,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:24:25,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:24:25,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:24:25,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:24:25,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:24:25,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:24:25,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:24:25,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:24:25,695 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 15:24:25,715 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:24:25,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:24:25,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:24:25,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:24:25,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:24:25,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:24:25,717 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:24:25,717 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:24:25,717 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:24:25,717 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:24:25,718 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:24:25,718 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:24:25,718 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:24:25,718 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:24:25,718 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:24:25,718 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:24:25,719 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:24:25,719 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:24:25,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:24:25,720 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:24:25,720 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:24:25,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:24:25,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:24:25,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:24:25,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:24:25,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:24:25,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:24:25,721 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 15:24:25,721 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:24:25,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:24:25,722 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:24:25,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:24:25,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:24:25,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:24:25,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:24:25,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:24:25,723 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:24:25,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:24:25,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:24:25,724 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:24:25,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:24:25,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:24:25,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:24:25,724 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_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b [2022-12-14 15:24:25,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:24:25,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:24:25,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:24:25,926 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:24:25,926 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:24:25,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2022-12-14 15:24:28,473 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:24:28,659 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:24:28,660 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2022-12-14 15:24:28,669 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh/data/22e37e898/8b554158d49f4ba0afe5e1f928cea8fd/FLAGc1729f9c9 [2022-12-14 15:24:29,046 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh/data/22e37e898/8b554158d49f4ba0afe5e1f928cea8fd [2022-12-14 15:24:29,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:24:29,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:24:29,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:24:29,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:24:29,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:24:29,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:24:29" (1/1) ... [2022-12-14 15:24:29,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1029774d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:29, skipping insertion in model container [2022-12-14 15:24:29,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:24:29" (1/1) ... [2022-12-14 15:24:29,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:24:29,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:24:29,215 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:24:29,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:24:29,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:24:29,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:24:29,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:24:29,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:24:29,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:24:29,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:24:29,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:24:29,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:24:29,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:24:29,303 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_ad7cd1da-4595-4b49-846f-31c334221818/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-12-14 15:24:29,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:24:29,318 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:24:29,333 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:24:29,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:24:29,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:24:29,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:24:29,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:24:29,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:24:29,357 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:24:29,357 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:24:29,358 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:24:29,358 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 15:24:29,358 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 15:24:29,359 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_ad7cd1da-4595-4b49-846f-31c334221818/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i[31246,31259] [2022-12-14 15:24:29,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:24:29,397 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:24:29,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:29 WrapperNode [2022-12-14 15:24:29,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:24:29,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:24:29,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:24:29,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:24:29,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:29" (1/1) ... [2022-12-14 15:24:29,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:29" (1/1) ... [2022-12-14 15:24:29,444 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 178 [2022-12-14 15:24:29,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:24:29,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:24:29,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:24:29,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:24:29,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:29" (1/1) ... [2022-12-14 15:24:29,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:29" (1/1) ... [2022-12-14 15:24:29,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:29" (1/1) ... [2022-12-14 15:24:29,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:29" (1/1) ... [2022-12-14 15:24:29,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:29" (1/1) ... [2022-12-14 15:24:29,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:29" (1/1) ... [2022-12-14 15:24:29,472 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:29" (1/1) ... [2022-12-14 15:24:29,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:29" (1/1) ... [2022-12-14 15:24:29,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:24:29,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:24:29,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:24:29,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:24:29,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:29" (1/1) ... [2022-12-14 15:24:29,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:24:29,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:24:29,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:24:29,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:24:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:24:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:24:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 15:24:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:24:29,532 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2022-12-14 15:24:29,533 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2022-12-14 15:24:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:24:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:24:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:24:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 15:24:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:24:29,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:24:29,533 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2022-12-14 15:24:29,533 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2022-12-14 15:24:29,534 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 15:24:29,639 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:24:29,641 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:24:29,891 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:24:29,967 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:24:29,967 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 15:24:29,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:24:29 BoogieIcfgContainer [2022-12-14 15:24:29,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:24:29,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:24:29,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:24:29,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:24:29,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:24:29" (1/3) ... [2022-12-14 15:24:29,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd2ed70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:24:29, skipping insertion in model container [2022-12-14 15:24:29,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:24:29" (2/3) ... [2022-12-14 15:24:29,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd2ed70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:24:29, skipping insertion in model container [2022-12-14 15:24:29,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:24:29" (3/3) ... [2022-12-14 15:24:29,978 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2022-12-14 15:24:29,986 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 15:24:29,996 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:24:29,996 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-12-14 15:24:29,996 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 15:24:30,059 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-14 15:24:30,091 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 15:24:30,106 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 170 transitions, 372 flow [2022-12-14 15:24:30,108 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 170 transitions, 372 flow [2022-12-14 15:24:30,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 170 transitions, 372 flow [2022-12-14 15:24:30,168 INFO L130 PetriNetUnfolder]: 2/166 cut-off events. [2022-12-14 15:24:30,168 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-14 15:24:30,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 166 events. 2/166 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 251 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2022-12-14 15:24:30,179 INFO L119 LiptonReduction]: Number of co-enabled transitions 8762 [2022-12-14 15:24:33,690 INFO L134 LiptonReduction]: Checked pairs total: 30181 [2022-12-14 15:24:33,690 INFO L136 LiptonReduction]: Total number of compositions: 174 [2022-12-14 15:24:33,697 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 88 places, 75 transitions, 182 flow [2022-12-14 15:24:36,165 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 106199 states, 98329 states have (on average 4.620223942072023) internal successors, (454302), 106198 states have internal predecessors, (454302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:36,178 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:24:36,182 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;@6750c744, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:24:36,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2022-12-14 15:24:36,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 106199 states, 98329 states have (on average 4.620223942072023) internal successors, (454302), 106198 states have internal predecessors, (454302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:36,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 15:24:36,332 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:36,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 15:24:36,332 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr4ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-14 15:24:36,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:36,336 INFO L85 PathProgramCache]: Analyzing trace with hash 701613, now seen corresponding path program 1 times [2022-12-14 15:24:36,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:36,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334778851] [2022-12-14 15:24:36,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:36,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:36,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:24:36,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:36,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334778851] [2022-12-14 15:24:36,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334778851] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:36,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:24:36,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 15:24:36,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248161574] [2022-12-14 15:24:36,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:36,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 15:24:36,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:24:36,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 15:24:36,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:24:36,655 INFO L87 Difference]: Start difference. First operand has 106199 states, 98329 states have (on average 4.620223942072023) internal successors, (454302), 106198 states have internal predecessors, (454302), 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, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:36,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:36,850 INFO L93 Difference]: Finished difference Result 6399 states and 24349 transitions. [2022-12-14 15:24:36,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 15:24:36,853 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 15:24:36,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:36,907 INFO L225 Difference]: With dead ends: 6399 [2022-12-14 15:24:36,907 INFO L226 Difference]: Without dead ends: 5714 [2022-12-14 15:24:36,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:24:36,911 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:36,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:24:36,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5714 states. [2022-12-14 15:24:37,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5714 to 5714. [2022-12-14 15:24:37,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5714 states, 5711 states have (on average 3.7907546839432675) internal successors, (21649), 5713 states have internal predecessors, (21649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:37,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5714 states to 5714 states and 21649 transitions. [2022-12-14 15:24:37,164 INFO L78 Accepts]: Start accepts. Automaton has 5714 states and 21649 transitions. Word has length 3 [2022-12-14 15:24:37,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:37,165 INFO L495 AbstractCegarLoop]: Abstraction has 5714 states and 21649 transitions. [2022-12-14 15:24:37,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:37,165 INFO L276 IsEmpty]: Start isEmpty. Operand 5714 states and 21649 transitions. [2022-12-14 15:24:37,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 15:24:37,166 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:37,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 15:24:37,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:24:37,166 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-14 15:24:37,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:37,167 INFO L85 PathProgramCache]: Analyzing trace with hash -576541571, now seen corresponding path program 1 times [2022-12-14 15:24:37,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:37,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852329998] [2022-12-14 15:24:37,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:37,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:37,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:24:37,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:37,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852329998] [2022-12-14 15:24:37,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852329998] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:37,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:24:37,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:24:37,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787684739] [2022-12-14 15:24:37,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:37,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:24:37,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:24:37,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:24:37,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:24:37,239 INFO L87 Difference]: Start difference. First operand 5714 states and 21649 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:37,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:37,500 INFO L93 Difference]: Finished difference Result 6430 states and 24282 transitions. [2022-12-14 15:24:37,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:24:37,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-12-14 15:24:37,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:37,530 INFO L225 Difference]: With dead ends: 6430 [2022-12-14 15:24:37,531 INFO L226 Difference]: Without dead ends: 6366 [2022-12-14 15:24:37,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:24:37,532 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 20 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:37,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 6 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 15:24:37,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6366 states. [2022-12-14 15:24:37,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6366 to 6366. [2022-12-14 15:24:37,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6366 states, 6363 states have (on average 3.775891874901776) internal successors, (24026), 6365 states have internal predecessors, (24026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:37,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6366 states to 6366 states and 24026 transitions. [2022-12-14 15:24:37,689 INFO L78 Accepts]: Start accepts. Automaton has 6366 states and 24026 transitions. Word has length 6 [2022-12-14 15:24:37,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:37,689 INFO L495 AbstractCegarLoop]: Abstraction has 6366 states and 24026 transitions. [2022-12-14 15:24:37,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:37,689 INFO L276 IsEmpty]: Start isEmpty. Operand 6366 states and 24026 transitions. [2022-12-14 15:24:37,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:24:37,690 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:37,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:24:37,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:24:37,691 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-14 15:24:37,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:37,691 INFO L85 PathProgramCache]: Analyzing trace with hash -834661091, now seen corresponding path program 1 times [2022-12-14 15:24:37,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:37,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658191032] [2022-12-14 15:24:37,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:37,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:37,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:24:37,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:37,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658191032] [2022-12-14 15:24:37,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658191032] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:37,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:24:37,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:24:37,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989038842] [2022-12-14 15:24:37,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:37,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:24:37,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:24:37,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:24:37,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:24:37,756 INFO L87 Difference]: Start difference. First operand 6366 states and 24026 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 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) [2022-12-14 15:24:37,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:37,897 INFO L93 Difference]: Finished difference Result 9062 states and 30671 transitions. [2022-12-14 15:24:37,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:24:37,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 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 [2022-12-14 15:24:37,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:37,929 INFO L225 Difference]: With dead ends: 9062 [2022-12-14 15:24:37,929 INFO L226 Difference]: Without dead ends: 9030 [2022-12-14 15:24:37,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:24:37,930 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 56 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:37,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 16 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:24:37,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9030 states. [2022-12-14 15:24:38,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9030 to 6690. [2022-12-14 15:24:38,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6690 states, 6687 states have (on average 3.522057723941977) internal successors, (23552), 6689 states have internal predecessors, (23552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:38,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6690 states to 6690 states and 23552 transitions. [2022-12-14 15:24:38,185 INFO L78 Accepts]: Start accepts. Automaton has 6690 states and 23552 transitions. Word has length 10 [2022-12-14 15:24:38,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:38,185 INFO L495 AbstractCegarLoop]: Abstraction has 6690 states and 23552 transitions. [2022-12-14 15:24:38,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 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) [2022-12-14 15:24:38,185 INFO L276 IsEmpty]: Start isEmpty. Operand 6690 states and 23552 transitions. [2022-12-14 15:24:38,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:24:38,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:38,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:24:38,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:24:38,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-14 15:24:38,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:38,187 INFO L85 PathProgramCache]: Analyzing trace with hash -2008216792, now seen corresponding path program 1 times [2022-12-14 15:24:38,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:38,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426489402] [2022-12-14 15:24:38,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:38,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:38,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:24:38,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:38,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426489402] [2022-12-14 15:24:38,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426489402] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:38,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:24:38,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:24:38,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306176995] [2022-12-14 15:24:38,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:38,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:24:38,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:24:38,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:24:38,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:24:38,232 INFO L87 Difference]: Start difference. First operand 6690 states and 23552 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2022-12-14 15:24:38,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:38,346 INFO L93 Difference]: Finished difference Result 7472 states and 26163 transitions. [2022-12-14 15:24:38,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:24:38,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 [2022-12-14 15:24:38,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:38,381 INFO L225 Difference]: With dead ends: 7472 [2022-12-14 15:24:38,381 INFO L226 Difference]: Without dead ends: 7290 [2022-12-14 15:24:38,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:24:38,382 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 20 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:38,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 6 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:24:38,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7290 states. [2022-12-14 15:24:38,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7290 to 7290. [2022-12-14 15:24:38,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7290 states, 7287 states have (on average 3.5055578427336354) internal successors, (25545), 7289 states have internal predecessors, (25545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:38,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7290 states to 7290 states and 25545 transitions. [2022-12-14 15:24:38,553 INFO L78 Accepts]: Start accepts. Automaton has 7290 states and 25545 transitions. Word has length 10 [2022-12-14 15:24:38,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:38,554 INFO L495 AbstractCegarLoop]: Abstraction has 7290 states and 25545 transitions. [2022-12-14 15:24:38,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2022-12-14 15:24:38,554 INFO L276 IsEmpty]: Start isEmpty. Operand 7290 states and 25545 transitions. [2022-12-14 15:24:38,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:24:38,554 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:38,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:24:38,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 15:24:38,555 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-14 15:24:38,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:38,555 INFO L85 PathProgramCache]: Analyzing trace with hash -252248215, now seen corresponding path program 2 times [2022-12-14 15:24:38,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:38,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650069586] [2022-12-14 15:24:38,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:38,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:38,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:24:38,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:38,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650069586] [2022-12-14 15:24:38,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650069586] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:38,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:24:38,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:24:38,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902754430] [2022-12-14 15:24:38,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:38,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:24:38,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:24:38,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:24:38,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:24:38,619 INFO L87 Difference]: Start difference. First operand 7290 states and 25545 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2022-12-14 15:24:38,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:38,681 INFO L93 Difference]: Finished difference Result 1194 states and 2679 transitions. [2022-12-14 15:24:38,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:24:38,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2022-12-14 15:24:38,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:38,684 INFO L225 Difference]: With dead ends: 1194 [2022-12-14 15:24:38,684 INFO L226 Difference]: Without dead ends: 990 [2022-12-14 15:24:38,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:24:38,686 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:38,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 4 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:24:38,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-12-14 15:24:38,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 990. [2022-12-14 15:24:38,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 986 states have (on average 2.3032454361054766) internal successors, (2271), 989 states have internal predecessors, (2271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:38,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 2271 transitions. [2022-12-14 15:24:38,699 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 2271 transitions. Word has length 10 [2022-12-14 15:24:38,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:38,699 INFO L495 AbstractCegarLoop]: Abstraction has 990 states and 2271 transitions. [2022-12-14 15:24:38,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2022-12-14 15:24:38,699 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 2271 transitions. [2022-12-14 15:24:38,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 15:24:38,700 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:38,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:24:38,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:24:38,701 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-14 15:24:38,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:38,701 INFO L85 PathProgramCache]: Analyzing trace with hash -515794427, now seen corresponding path program 1 times [2022-12-14 15:24:38,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:38,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673209284] [2022-12-14 15:24:38,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:38,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:38,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:24:38,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:38,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673209284] [2022-12-14 15:24:38,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673209284] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:38,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:24:38,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:24:38,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273706253] [2022-12-14 15:24:38,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:38,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:24:38,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:24:38,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:24:38,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:24:38,772 INFO L87 Difference]: Start difference. First operand 990 states and 2271 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:38,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:38,879 INFO L93 Difference]: Finished difference Result 1118 states and 2511 transitions. [2022-12-14 15:24:38,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:24:38,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 15:24:38,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:38,883 INFO L225 Difference]: With dead ends: 1118 [2022-12-14 15:24:38,883 INFO L226 Difference]: Without dead ends: 854 [2022-12-14 15:24:38,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:24:38,884 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 49 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:38,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 10 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:24:38,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-12-14 15:24:38,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 798. [2022-12-14 15:24:38,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 794 states have (on average 2.1448362720403025) internal successors, (1703), 797 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:38,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1703 transitions. [2022-12-14 15:24:38,896 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1703 transitions. Word has length 20 [2022-12-14 15:24:38,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:38,896 INFO L495 AbstractCegarLoop]: Abstraction has 798 states and 1703 transitions. [2022-12-14 15:24:38,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:38,896 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1703 transitions. [2022-12-14 15:24:38,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 15:24:38,897 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:38,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:24:38,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 15:24:38,897 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-12-14 15:24:38,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:38,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1878468951, now seen corresponding path program 2 times [2022-12-14 15:24:38,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:38,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465467414] [2022-12-14 15:24:38,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:38,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:39,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:24:39,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:39,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465467414] [2022-12-14 15:24:39,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465467414] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:39,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:24:39,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:24:39,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925071319] [2022-12-14 15:24:39,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:39,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:24:39,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:24:39,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:24:39,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:24:39,005 INFO L87 Difference]: Start difference. First operand 798 states and 1703 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:39,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:39,062 INFO L93 Difference]: Finished difference Result 302 states and 519 transitions. [2022-12-14 15:24:39,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:24:39,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 15:24:39,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:39,063 INFO L225 Difference]: With dead ends: 302 [2022-12-14 15:24:39,063 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 15:24:39,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:24:39,063 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 59 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:39,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 4 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:24:39,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 15:24:39,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 15:24:39,064 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) [2022-12-14 15:24:39,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 15:24:39,065 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2022-12-14 15:24:39,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:39,065 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 15:24:39,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:24:39,065 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 15:24:39,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 15:24:39,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (49 of 50 remaining) [2022-12-14 15:24:39,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2022-12-14 15:24:39,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2022-12-14 15:24:39,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2022-12-14 15:24:39,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2022-12-14 15:24:39,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2022-12-14 15:24:39,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (43 of 50 remaining) [2022-12-14 15:24:39,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2022-12-14 15:24:39,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2022-12-14 15:24:39,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2022-12-14 15:24:39,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2022-12-14 15:24:39,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2022-12-14 15:24:39,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2022-12-14 15:24:39,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 50 remaining) [2022-12-14 15:24:39,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 50 remaining) [2022-12-14 15:24:39,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 50 remaining) [2022-12-14 15:24:39,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 50 remaining) [2022-12-14 15:24:39,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2022-12-14 15:24:39,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2022-12-14 15:24:39,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2022-12-14 15:24:39,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2022-12-14 15:24:39,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2022-12-14 15:24:39,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2022-12-14 15:24:39,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2022-12-14 15:24:39,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2022-12-14 15:24:39,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2022-12-14 15:24:39,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2022-12-14 15:24:39,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2022-12-14 15:24:39,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2022-12-14 15:24:39,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2022-12-14 15:24:39,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2022-12-14 15:24:39,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2022-12-14 15:24:39,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2022-12-14 15:24:39,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2022-12-14 15:24:39,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2022-12-14 15:24:39,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2022-12-14 15:24:39,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2022-12-14 15:24:39,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2022-12-14 15:24:39,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2022-12-14 15:24:39,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2022-12-14 15:24:39,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2022-12-14 15:24:39,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2022-12-14 15:24:39,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2022-12-14 15:24:39,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2022-12-14 15:24:39,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2022-12-14 15:24:39,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2022-12-14 15:24:39,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2022-12-14 15:24:39,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2022-12-14 15:24:39,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2022-12-14 15:24:39,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2022-12-14 15:24:39,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 15:24:39,076 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2022-12-14 15:24:39,080 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 15:24:39,080 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:24:39,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:24:39 BasicIcfg [2022-12-14 15:24:39,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:24:39,082 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:24:39,082 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:24:39,083 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:24:39,083 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:24:29" (3/4) ... [2022-12-14 15:24:39,085 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 15:24:39,089 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2022-12-14 15:24:39,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2022-12-14 15:24:39,092 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-12-14 15:24:39,093 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 15:24:39,093 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 15:24:39,093 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 15:24:39,115 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 15:24:39,115 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:24:39,116 INFO L158 Benchmark]: Toolchain (without parser) took 10062.63ms. Allocated memory was 125.8MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 90.7MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 428.5MB. Max. memory is 16.1GB. [2022-12-14 15:24:39,116 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:24:39,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.34ms. Allocated memory is still 125.8MB. Free memory was 90.7MB in the beginning and 69.2MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 15:24:39,117 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.55ms. Allocated memory is still 125.8MB. Free memory was 69.2MB in the beginning and 66.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:24:39,117 INFO L158 Benchmark]: Boogie Preprocessor took 30.94ms. Allocated memory is still 125.8MB. Free memory was 66.7MB in the beginning and 64.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:24:39,117 INFO L158 Benchmark]: RCFGBuilder took 493.14ms. Allocated memory is still 125.8MB. Free memory was 64.7MB in the beginning and 80.5MB in the end (delta: -15.8MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-12-14 15:24:39,118 INFO L158 Benchmark]: TraceAbstraction took 9110.07ms. Allocated memory was 125.8MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 79.8MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 414.9MB. Max. memory is 16.1GB. [2022-12-14 15:24:39,118 INFO L158 Benchmark]: Witness Printer took 33.02ms. Allocated memory is still 2.7GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:24:39,120 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.34ms. Allocated memory is still 125.8MB. Free memory was 90.7MB in the beginning and 69.2MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.55ms. Allocated memory is still 125.8MB. Free memory was 69.2MB in the beginning and 66.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.94ms. Allocated memory is still 125.8MB. Free memory was 66.7MB in the beginning and 64.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 493.14ms. Allocated memory is still 125.8MB. Free memory was 64.7MB in the beginning and 80.5MB in the end (delta: -15.8MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9110.07ms. Allocated memory was 125.8MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 79.8MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 414.9MB. Max. memory is 16.1GB. * Witness Printer took 33.02ms. Allocated memory is still 2.7GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 2.1MB). 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: 3.6s, 181 PlacesBefore, 88 PlacesAfterwards, 170 TransitionsBefore, 75 TransitionsAfterwards, 8762 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 138 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 174 TotalNumberOfCompositions, 30181 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16677, independent: 16315, independent conditional: 0, independent unconditional: 16315, dependent: 362, dependent conditional: 0, dependent unconditional: 362, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6659, independent: 6583, independent conditional: 0, independent unconditional: 6583, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6659, independent: 6187, independent conditional: 0, independent unconditional: 6187, dependent: 472, dependent conditional: 0, dependent unconditional: 472, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 472, independent: 396, independent conditional: 0, independent unconditional: 396, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 301, independent: 186, independent conditional: 0, independent unconditional: 186, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16677, independent: 9732, independent conditional: 0, independent unconditional: 9732, dependent: 286, dependent conditional: 0, dependent unconditional: 286, unknown: 6659, unknown conditional: 0, unknown unconditional: 6659] , Statistics on independence cache: Total cache size (in pairs): 1008, Positive cache size: 967, Positive conditional cache size: 0, Positive unconditional cache size: 967, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41, 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: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 734]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 749]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 751]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 211 locations, 50 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 233 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 233 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 707 IncrementalHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 32 mSDtfsCounter, 707 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106199occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 2396 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 15:24:39,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7cd1da-4595-4b49-846f-31c334221818/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE