./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/barrier_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/barrier_2t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI --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 f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 --- 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-5e519f3 [2022-11-03 01:57:08,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:57:08,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:57:08,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:57:08,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:57:08,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:57:08,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:57:08,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:57:08,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:57:08,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:57:08,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:57:08,277 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:57:08,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:57:08,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:57:08,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:57:08,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:57:08,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:57:08,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:57:08,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:57:08,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:57:08,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:57:08,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:57:08,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:57:08,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:57:08,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:57:08,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:57:08,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:57:08,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:57:08,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:57:08,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:57:08,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:57:08,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:57:08,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:57:08,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:57:08,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:57:08,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:57:08,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:57:08,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:57:08,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:57:08,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:57:08,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:57:08,322 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 01:57:08,359 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:57:08,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:57:08,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:57:08,360 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:57:08,361 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:57:08,361 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:57:08,361 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:57:08,361 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:57:08,361 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:57:08,362 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:57:08,363 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:57:08,363 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:57:08,363 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:57:08,363 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:57:08,363 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:57:08,364 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:57:08,364 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:57:08,364 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:57:08,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:57:08,365 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:57:08,365 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 01:57:08,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:57:08,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:57:08,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:57:08,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:57:08,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:57:08,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:57:08,366 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 01:57:08,366 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:57:08,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:57:08,367 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:57:08,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:57:08,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:57:08,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:57:08,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:57:08,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:57:08,368 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:57:08,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:57:08,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:57:08,369 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:57:08,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:57:08,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:57:08,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:57:08,369 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_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 [2022-11-03 01:57:08,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:57:08,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:57:08,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:57:08,670 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:57:08,670 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:57:08,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread-divine/barrier_2t.i [2022-11-03 01:57:08,741 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/data/b4a13161a/66491d1c0648462f99fd26d325e4d8b9/FLAGbdf2e2319 [2022-11-03 01:57:09,264 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:57:09,264 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i [2022-11-03 01:57:09,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/data/b4a13161a/66491d1c0648462f99fd26d325e4d8b9/FLAGbdf2e2319 [2022-11-03 01:57:09,552 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/data/b4a13161a/66491d1c0648462f99fd26d325e4d8b9 [2022-11-03 01:57:09,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:57:09,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:57:09,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:57:09,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:57:09,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:57:09,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:57:09" (1/1) ... [2022-11-03 01:57:09,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36fbb79d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:09, skipping insertion in model container [2022-11-03 01:57:09,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:57:09" (1/1) ... [2022-11-03 01:57:09,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:57:09,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:57:09,809 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-03 01:57:10,005 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[30484,30497] [2022-11-03 01:57:10,056 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[31858,31871] [2022-11-03 01:57:10,059 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[31909,31922] [2022-11-03 01:57:10,069 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32058,32071] [2022-11-03 01:57:10,070 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32135,32148] [2022-11-03 01:57:10,073 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32182,32195] [2022-11-03 01:57:10,078 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32291,32304] [2022-11-03 01:57:10,083 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32410,32423] [2022-11-03 01:57:10,084 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32458,32471] [2022-11-03 01:57:10,085 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32535,32548] [2022-11-03 01:57:10,088 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32661,32674] [2022-11-03 01:57:10,096 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[33244,33257] [2022-11-03 01:57:10,097 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[33321,33334] [2022-11-03 01:57:10,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:57:10,106 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:57:10,128 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-03 01:57:10,148 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[30484,30497] [2022-11-03 01:57:10,178 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[31858,31871] [2022-11-03 01:57:10,179 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[31909,31922] [2022-11-03 01:57:10,184 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32058,32071] [2022-11-03 01:57:10,185 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32135,32148] [2022-11-03 01:57:10,186 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32182,32195] [2022-11-03 01:57:10,187 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32291,32304] [2022-11-03 01:57:10,188 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32410,32423] [2022-11-03 01:57:10,189 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32458,32471] [2022-11-03 01:57:10,190 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32535,32548] [2022-11-03 01:57:10,191 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[32661,32674] [2022-11-03 01:57:10,197 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[33244,33257] [2022-11-03 01:57:10,198 WARN L230 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_74037634-0379-42dc-90bf-a0c77ecd1b08/sv-benchmarks/c/pthread-divine/barrier_2t.i[33321,33334] [2022-11-03 01:57:10,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:57:10,240 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:57:10,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:10 WrapperNode [2022-11-03 01:57:10,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:57:10,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:57:10,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:57:10,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:57:10,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:10" (1/1) ... [2022-11-03 01:57:10,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:10" (1/1) ... [2022-11-03 01:57:10,355 INFO L138 Inliner]: procedures = 174, calls = 78, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 950 [2022-11-03 01:57:10,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:57:10,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:57:10,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:57:10,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:57:10,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:10" (1/1) ... [2022-11-03 01:57:10,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:10" (1/1) ... [2022-11-03 01:57:10,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:10" (1/1) ... [2022-11-03 01:57:10,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:10" (1/1) ... [2022-11-03 01:57:10,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:10" (1/1) ... [2022-11-03 01:57:10,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:10" (1/1) ... [2022-11-03 01:57:10,450 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:10" (1/1) ... [2022-11-03 01:57:10,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:10" (1/1) ... [2022-11-03 01:57:10,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:57:10,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:57:10,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:57:10,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:57:10,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:10" (1/1) ... [2022-11-03 01:57:10,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:57:10,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:57:10,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:57:10,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:57:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:57:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:57:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 01:57:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-11-03 01:57:10,560 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-11-03 01:57:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:57:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:57:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:57:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:57:10,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:57:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:57:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:57:10,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:57:10,564 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 01:57:10,829 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:57:10,831 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:57:12,276 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:57:12,300 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:57:12,301 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2022-11-03 01:57:12,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:57:12 BoogieIcfgContainer [2022-11-03 01:57:12,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:57:12,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:57:12,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:57:12,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:57:12,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:57:09" (1/3) ... [2022-11-03 01:57:12,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb9e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:57:12, skipping insertion in model container [2022-11-03 01:57:12,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:10" (2/3) ... [2022-11-03 01:57:12,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb9e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:57:12, skipping insertion in model container [2022-11-03 01:57:12,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:57:12" (3/3) ... [2022-11-03 01:57:12,316 INFO L112 eAbstractionObserver]: Analyzing ICFG barrier_2t.i [2022-11-03 01:57:12,324 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 01:57:12,334 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:57:12,335 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 98 error locations. [2022-11-03 01:57:12,335 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 01:57:12,540 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-03 01:57:12,588 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 01:57:12,602 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1018 places, 1085 transitions, 2178 flow [2022-11-03 01:57:12,604 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 1018 places, 1085 transitions, 2178 flow [2022-11-03 01:57:12,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1018 places, 1085 transitions, 2178 flow [2022-11-03 01:57:13,534 INFO L130 PetriNetUnfolder]: 106/1593 cut-off events. [2022-11-03 01:57:13,535 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-03 01:57:13,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1599 conditions, 1593 events. 106/1593 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 6054 event pairs, 0 based on Foata normal form. 0/1339 useless extension candidates. Maximal degree in co-relation 964. Up to 4 conditions per place. [2022-11-03 01:57:13,781 INFO L118 LiptonReduction]: Number of co-enabled transitions 463628 [2022-11-03 02:03:00,481 WARN L234 SmtUtils]: Spent 6.49s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:03:07,208 WARN L234 SmtUtils]: Spent 6.73s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:03:13,260 WARN L234 SmtUtils]: Spent 6.05s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:03:19,248 WARN L234 SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:04:20,344 WARN L234 SmtUtils]: Spent 50.75s on a formula simplification. DAG size of input: 169 DAG size of output: 161 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:04:36,333 WARN L234 SmtUtils]: Spent 15.99s on a formula simplification that was a NOOP. DAG size: 153 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:05:32,666 WARN L234 SmtUtils]: Spent 56.33s on a formula simplification. DAG size of input: 178 DAG size of output: 168 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:05:51,945 WARN L234 SmtUtils]: Spent 19.28s on a formula simplification that was a NOOP. DAG size: 159 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:05:51,982 INFO L133 LiptonReduction]: Checked pairs total: 2881286 [2022-11-03 02:05:51,982 INFO L135 LiptonReduction]: Total number of compositions: 695 [2022-11-03 02:05:51,992 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 542 places, 587 transitions, 1182 flow [2022-11-03 02:05:54,086 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 70425 states, 68121 states have (on average 2.2350523333480132) internal successors, (152254), 70424 states have internal predecessors, (152254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:05:54,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:05:54,141 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;@6d3f1900, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:05:54,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 143 error locations. [2022-11-03 02:05:54,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 70425 states, 68121 states have (on average 2.2350523333480132) internal successors, (152254), 70424 states have internal predecessors, (152254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:05:54,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-03 02:05:54,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:05:54,512 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-03 02:05:54,513 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-03 02:05:54,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:05:54,536 INFO L85 PathProgramCache]: Analyzing trace with hash 116284, now seen corresponding path program 1 times [2022-11-03 02:05:54,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:05:54,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922858119] [2022-11-03 02:05:54,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:05:54,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:05:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:05:54,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:05:54,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:05:54,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922858119] [2022-11-03 02:05:54,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922858119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:05:54,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:05:54,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:05:54,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750840175] [2022-11-03 02:05:54,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:05:54,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:05:54,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:05:54,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:05:54,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:05:54,947 INFO L87 Difference]: Start difference. First operand has 70425 states, 68121 states have (on average 2.2350523333480132) internal successors, (152254), 70424 states have internal predecessors, (152254), 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 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:05:56,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:05:56,778 INFO L93 Difference]: Finished difference Result 70418 states and 146663 transitions. [2022-11-03 02:05:56,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:05:56,780 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-03 02:05:56,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:05:57,514 INFO L225 Difference]: With dead ends: 70418 [2022-11-03 02:05:57,515 INFO L226 Difference]: Without dead ends: 70416 [2022-11-03 02:05:57,517 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 [2022-11-03 02:05:57,538 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:05:57,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 348 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 02:05:57,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70416 states. [2022-11-03 02:06:00,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70416 to 70416. [2022-11-03 02:06:00,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70416 states, 68121 states have (on average 2.152933750238546) internal successors, (146660), 70415 states have internal predecessors, (146660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:00,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70416 states to 70416 states and 146660 transitions. [2022-11-03 02:06:00,793 INFO L78 Accepts]: Start accepts. Automaton has 70416 states and 146660 transitions. Word has length 2 [2022-11-03 02:06:00,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:00,794 INFO L495 AbstractCegarLoop]: Abstraction has 70416 states and 146660 transitions. [2022-11-03 02:06:00,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:00,794 INFO L276 IsEmpty]: Start isEmpty. Operand 70416 states and 146660 transitions. [2022-11-03 02:06:00,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 02:06:00,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:00,797 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-03 02:06:00,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:06:00,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-03 02:06:00,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:00,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1970365992, now seen corresponding path program 1 times [2022-11-03 02:06:00,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:00,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100624664] [2022-11-03 02:06:00,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:00,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:01,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:06:01,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:01,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100624664] [2022-11-03 02:06:01,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100624664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:01,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:01,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:06:01,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168392824] [2022-11-03 02:06:01,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:01,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:06:01,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:01,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:06:01,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:01,079 INFO L87 Difference]: Start difference. First operand 70416 states and 146660 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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) [2022-11-03 02:06:02,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:02,911 INFO L93 Difference]: Finished difference Result 70417 states and 146661 transitions. [2022-11-03 02:06:02,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:06:02,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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 7 [2022-11-03 02:06:02,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:03,197 INFO L225 Difference]: With dead ends: 70417 [2022-11-03 02:06:03,198 INFO L226 Difference]: Without dead ends: 70417 [2022-11-03 02:06:03,198 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 [2022-11-03 02:06:03,200 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 0 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:03,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 696 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-03 02:06:03,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70417 states. [2022-11-03 02:06:05,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70417 to 70417. [2022-11-03 02:06:05,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70417 states, 68122 states have (on average 2.1529168256950766) internal successors, (146661), 70416 states have internal predecessors, (146661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:05,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70417 states to 70417 states and 146661 transitions. [2022-11-03 02:06:05,303 INFO L78 Accepts]: Start accepts. Automaton has 70417 states and 146661 transitions. Word has length 7 [2022-11-03 02:06:05,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:05,304 INFO L495 AbstractCegarLoop]: Abstraction has 70417 states and 146661 transitions. [2022-11-03 02:06:05,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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) [2022-11-03 02:06:05,307 INFO L276 IsEmpty]: Start isEmpty. Operand 70417 states and 146661 transitions. [2022-11-03 02:06:05,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 02:06:05,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:05,309 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:05,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:06:05,311 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-03 02:06:05,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:05,311 INFO L85 PathProgramCache]: Analyzing trace with hash 772172164, now seen corresponding path program 1 times [2022-11-03 02:06:05,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:05,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083262439] [2022-11-03 02:06:05,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:05,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:05,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:06:05,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:05,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083262439] [2022-11-03 02:06:05,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083262439] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:06:05,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483767850] [2022-11-03 02:06:05,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:05,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:06:05,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:06:05,479 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:06:05,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:06:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:05,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:06:05,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:06:05,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:06:05,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:06:05,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:06:05,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483767850] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:06:05,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1578604283] [2022-11-03 02:06:05,807 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-03 02:06:05,810 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:06:05,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2022-11-03 02:06:05,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598535191] [2022-11-03 02:06:05,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:06:05,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:06:05,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:05,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:06:05,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:06:05,813 INFO L87 Difference]: Start difference. First operand 70417 states and 146661 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:07,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:07,830 INFO L93 Difference]: Finished difference Result 70418 states and 146662 transitions. [2022-11-03 02:06:07,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:06:07,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-03 02:06:07,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:08,115 INFO L225 Difference]: With dead ends: 70418 [2022-11-03 02:06:08,116 INFO L226 Difference]: Without dead ends: 70418 [2022-11-03 02:06:08,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:06:08,127 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 0 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:08,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1044 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-03 02:06:08,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70418 states. [2022-11-03 02:06:09,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70418 to 70418. [2022-11-03 02:06:09,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70418 states, 68123 states have (on average 2.152899901648489) internal successors, (146662), 70417 states have internal predecessors, (146662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:10,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70418 states to 70418 states and 146662 transitions. [2022-11-03 02:06:10,071 INFO L78 Accepts]: Start accepts. Automaton has 70418 states and 146662 transitions. Word has length 8 [2022-11-03 02:06:10,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:10,071 INFO L495 AbstractCegarLoop]: Abstraction has 70418 states and 146662 transitions. [2022-11-03 02:06:10,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:10,071 INFO L276 IsEmpty]: Start isEmpty. Operand 70418 states and 146662 transitions. [2022-11-03 02:06:10,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:06:10,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:10,072 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-03 02:06:10,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:06:10,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:06:10,279 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-03 02:06:10,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:10,280 INFO L85 PathProgramCache]: Analyzing trace with hash -2012098136, now seen corresponding path program 2 times [2022-11-03 02:06:10,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:10,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773156458] [2022-11-03 02:06:10,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:10,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:10,394 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:06:10,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:10,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773156458] [2022-11-03 02:06:10,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773156458] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:06:10,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658346775] [2022-11-03 02:06:10,395 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:06:10,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:06:10,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:06:10,397 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:06:10,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:06:10,946 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 02:06:10,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:06:10,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:06:10,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:06:10,967 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:06:10,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:06:10,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658346775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:10,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:06:10,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-03 02:06:10,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450974785] [2022-11-03 02:06:10,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:10,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:06:10,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:10,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:06:10,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:06:10,970 INFO L87 Difference]: Start difference. First operand 70418 states and 146662 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:12,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:12,786 INFO L93 Difference]: Finished difference Result 69906 states and 145616 transitions. [2022-11-03 02:06:12,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:06:12,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-03 02:06:12,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:13,060 INFO L225 Difference]: With dead ends: 69906 [2022-11-03 02:06:13,060 INFO L226 Difference]: Without dead ends: 69906 [2022-11-03 02:06:13,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:06:13,062 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 1103 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:13,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 683 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 02:06:13,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69906 states. [2022-11-03 02:06:14,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69906 to 69906. [2022-11-03 02:06:14,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69906 states, 67656 states have (on average 2.152299869930235) internal successors, (145616), 69905 states have internal predecessors, (145616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:14,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69906 states to 69906 states and 145616 transitions. [2022-11-03 02:06:14,668 INFO L78 Accepts]: Start accepts. Automaton has 69906 states and 145616 transitions. Word has length 9 [2022-11-03 02:06:14,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:14,668 INFO L495 AbstractCegarLoop]: Abstraction has 69906 states and 145616 transitions. [2022-11-03 02:06:14,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:14,668 INFO L276 IsEmpty]: Start isEmpty. Operand 69906 states and 145616 transitions. [2022-11-03 02:06:14,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:06:14,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:14,669 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:14,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:06:14,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:06:14,895 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-03 02:06:14,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:14,896 INFO L85 PathProgramCache]: Analyzing trace with hash -227592631, now seen corresponding path program 1 times [2022-11-03 02:06:14,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:14,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520180048] [2022-11-03 02:06:14,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:14,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:15,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:06:15,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:15,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520180048] [2022-11-03 02:06:15,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520180048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:15,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:15,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:06:15,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540063567] [2022-11-03 02:06:15,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:15,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:06:15,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:15,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:06:15,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:15,087 INFO L87 Difference]: Start difference. First operand 69906 states and 145616 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:16,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:16,839 INFO L93 Difference]: Finished difference Result 69653 states and 145350 transitions. [2022-11-03 02:06:16,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:06:16,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-03 02:06:16,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:17,054 INFO L225 Difference]: With dead ends: 69653 [2022-11-03 02:06:17,055 INFO L226 Difference]: Without dead ends: 69653 [2022-11-03 02:06:17,055 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 [2022-11-03 02:06:17,056 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 269 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:17,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 694 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 02:06:17,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69653 states. [2022-11-03 02:06:18,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69653 to 69653. [2022-11-03 02:06:18,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69653 states, 67447 states have (on average 2.1550254273726037) internal successors, (145350), 69652 states have internal predecessors, (145350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:18,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69653 states to 69653 states and 145350 transitions. [2022-11-03 02:06:18,576 INFO L78 Accepts]: Start accepts. Automaton has 69653 states and 145350 transitions. Word has length 10 [2022-11-03 02:06:18,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:18,576 INFO L495 AbstractCegarLoop]: Abstraction has 69653 states and 145350 transitions. [2022-11-03 02:06:18,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:18,577 INFO L276 IsEmpty]: Start isEmpty. Operand 69653 states and 145350 transitions. [2022-11-03 02:06:18,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:06:18,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:18,577 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:18,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:06:18,578 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting worker_fnErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-03 02:06:18,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:18,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1885332890, now seen corresponding path program 1 times [2022-11-03 02:06:18,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:18,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2607221] [2022-11-03 02:06:18,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:18,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:19,112 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:06:19,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:19,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2607221] [2022-11-03 02:06:19,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2607221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:19,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:19,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:06:19,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269036516] [2022-11-03 02:06:19,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:19,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:06:19,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:19,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:06:19,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:06:19,115 INFO L87 Difference]: Start difference. First operand 69653 states and 145350 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:26,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:26,024 INFO L93 Difference]: Finished difference Result 71215 states and 148546 transitions. [2022-11-03 02:06:26,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:06:26,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-03 02:06:26,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:26,225 INFO L225 Difference]: With dead ends: 71215 [2022-11-03 02:06:26,225 INFO L226 Difference]: Without dead ends: 71215 [2022-11-03 02:06:26,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:06:26,226 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 688 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 4253 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 4546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 4253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:26,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 576 Invalid, 4546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 4253 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-03 02:06:26,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71215 states. [2022-11-03 02:06:28,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71215 to 70691. [2022-11-03 02:06:28,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70691 states, 68486 states have (on average 2.153345209239845) internal successors, (147474), 70690 states have internal predecessors, (147474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:28,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70691 states to 70691 states and 147474 transitions. [2022-11-03 02:06:28,536 INFO L78 Accepts]: Start accepts. Automaton has 70691 states and 147474 transitions. Word has length 12 [2022-11-03 02:06:28,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:28,536 INFO L495 AbstractCegarLoop]: Abstraction has 70691 states and 147474 transitions. [2022-11-03 02:06:28,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:28,537 INFO L276 IsEmpty]: Start isEmpty. Operand 70691 states and 147474 transitions. [2022-11-03 02:06:28,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 02:06:28,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:28,538 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:28,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:06:28,538 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-03 02:06:28,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:28,539 INFO L85 PathProgramCache]: Analyzing trace with hash 549003865, now seen corresponding path program 1 times [2022-11-03 02:06:28,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:28,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630759957] [2022-11-03 02:06:28,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:28,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:29,025 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:06:29,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:29,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630759957] [2022-11-03 02:06:29,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630759957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:29,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:29,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:06:29,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112319159] [2022-11-03 02:06:29,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:29,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:06:29,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:29,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:06:29,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:06:29,028 INFO L87 Difference]: Start difference. First operand 70691 states and 147474 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:34,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:34,915 INFO L93 Difference]: Finished difference Result 72165 states and 150488 transitions. [2022-11-03 02:06:34,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:06:34,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-03 02:06:34,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:35,101 INFO L225 Difference]: With dead ends: 72165 [2022-11-03 02:06:35,102 INFO L226 Difference]: Without dead ends: 72165 [2022-11-03 02:06:35,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:06:35,103 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 640 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 3440 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 3710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 3440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:35,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 526 Invalid, 3710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 3440 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-03 02:06:35,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72165 states. [2022-11-03 02:06:36,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72165 to 71671. [2022-11-03 02:06:36,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71671 states, 69466 states have (on average 2.1518152765381626) internal successors, (149478), 71670 states have internal predecessors, (149478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:36,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71671 states to 71671 states and 149478 transitions. [2022-11-03 02:06:36,633 INFO L78 Accepts]: Start accepts. Automaton has 71671 states and 149478 transitions. Word has length 13 [2022-11-03 02:06:36,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:36,633 INFO L495 AbstractCegarLoop]: Abstraction has 71671 states and 149478 transitions. [2022-11-03 02:06:36,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:36,633 INFO L276 IsEmpty]: Start isEmpty. Operand 71671 states and 149478 transitions. [2022-11-03 02:06:36,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:06:36,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:36,634 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:36,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:06:36,635 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting worker_fnErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-03 02:06:36,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:36,636 INFO L85 PathProgramCache]: Analyzing trace with hash -639900708, now seen corresponding path program 1 times [2022-11-03 02:06:36,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:36,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511462394] [2022-11-03 02:06:36,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:36,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:36,784 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:06:36,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:36,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511462394] [2022-11-03 02:06:36,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511462394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:36,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:36,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:06:36,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205077640] [2022-11-03 02:06:36,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:36,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:06:36,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:36,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:06:36,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:36,787 INFO L87 Difference]: Start difference. First operand 71671 states and 149478 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:39,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:39,060 INFO L93 Difference]: Finished difference Result 71935 states and 150018 transitions. [2022-11-03 02:06:39,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:06:39,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 02:06:39,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:39,735 INFO L225 Difference]: With dead ends: 71935 [2022-11-03 02:06:39,735 INFO L226 Difference]: Without dead ends: 71935 [2022-11-03 02:06:39,735 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 [2022-11-03 02:06:39,736 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 171 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:39,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 395 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-03 02:06:39,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71935 states. [2022-11-03 02:06:41,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71935 to 71935. [2022-11-03 02:06:41,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71935 states, 69730 states have (on average 2.151412591424064) internal successors, (150018), 71934 states have internal predecessors, (150018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:41,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71935 states to 71935 states and 150018 transitions. [2022-11-03 02:06:41,742 INFO L78 Accepts]: Start accepts. Automaton has 71935 states and 150018 transitions. Word has length 15 [2022-11-03 02:06:41,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:41,742 INFO L495 AbstractCegarLoop]: Abstraction has 71935 states and 150018 transitions. [2022-11-03 02:06:41,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:41,743 INFO L276 IsEmpty]: Start isEmpty. Operand 71935 states and 150018 transitions. [2022-11-03 02:06:41,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:06:41,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:41,746 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:41,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:06:41,746 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-03 02:06:41,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:41,748 INFO L85 PathProgramCache]: Analyzing trace with hash 188072062, now seen corresponding path program 1 times [2022-11-03 02:06:41,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:41,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993731567] [2022-11-03 02:06:41,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:41,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:41,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:06:41,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:41,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993731567] [2022-11-03 02:06:41,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993731567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:41,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:41,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:06:41,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86638299] [2022-11-03 02:06:41,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:41,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:06:41,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:41,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:06:41,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:41,918 INFO L87 Difference]: Start difference. First operand 71935 states and 150018 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:44,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:44,094 INFO L93 Difference]: Finished difference Result 72181 states and 150521 transitions. [2022-11-03 02:06:44,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:06:44,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-03 02:06:44,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:44,255 INFO L225 Difference]: With dead ends: 72181 [2022-11-03 02:06:44,255 INFO L226 Difference]: Without dead ends: 72181 [2022-11-03 02:06:44,256 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 [2022-11-03 02:06:44,257 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 160 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:44,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 393 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-03 02:06:44,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72181 states. [2022-11-03 02:06:45,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72181 to 72181. [2022-11-03 02:06:45,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72181 states, 69977 states have (on average 2.151006759363791) internal successors, (150521), 72180 states have internal predecessors, (150521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:46,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72181 states to 72181 states and 150521 transitions. [2022-11-03 02:06:46,461 INFO L78 Accepts]: Start accepts. Automaton has 72181 states and 150521 transitions. Word has length 16 [2022-11-03 02:06:46,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:46,461 INFO L495 AbstractCegarLoop]: Abstraction has 72181 states and 150521 transitions. [2022-11-03 02:06:46,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:46,462 INFO L276 IsEmpty]: Start isEmpty. Operand 72181 states and 150521 transitions. [2022-11-03 02:06:46,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:06:46,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:46,463 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:46,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:06:46,463 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-03 02:06:46,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:46,464 INFO L85 PathProgramCache]: Analyzing trace with hash 181287421, now seen corresponding path program 1 times [2022-11-03 02:06:46,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:46,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910558456] [2022-11-03 02:06:46,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:46,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:46,892 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:06:46,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:46,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910558456] [2022-11-03 02:06:46,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910558456] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:06:46,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296945424] [2022-11-03 02:06:46,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:46,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:06:46,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:06:46,894 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:06:46,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:06:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:47,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 02:06:47,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:06:47,222 INFO L356 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-03 02:06:47,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2022-11-03 02:06:47,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:06:47,411 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-03 02:06:47,433 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:06:47,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:06:47,455 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1266 (Array Int Int))) (= |c_ULTIMATE.start_worker_fn_#t~nondet27#1| (select (select (store |c_#race| |c_worker_fnThread1of1ForFork0_~a~0#1.base| v_ArrVal_1266) |c_~#pre~0.base|) (+ |c_~#pre~0.offset| |c_ULTIMATE.start_worker_fn_~tid~0#1|)))) is different from false [2022-11-03 02:06:47,473 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:06:47,473 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2022-11-03 02:06:47,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2022-11-03 02:06:47,541 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:06:47,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296945424] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:06:47,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1794574405] [2022-11-03 02:06:47,544 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-03 02:06:47,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:06:47,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2022-11-03 02:06:47,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612557796] [2022-11-03 02:06:47,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:06:47,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-03 02:06:47,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:47,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-03 02:06:47,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=144, Unknown=1, NotChecked=24, Total=210 [2022-11-03 02:06:47,548 INFO L87 Difference]: Start difference. First operand 72181 states and 150521 transitions. Second operand has 15 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:54,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:54,296 INFO L93 Difference]: Finished difference Result 139660 states and 291649 transitions. [2022-11-03 02:06:54,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:06:54,297 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 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 18 [2022-11-03 02:06:54,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:54,784 INFO L225 Difference]: With dead ends: 139660 [2022-11-03 02:06:54,784 INFO L226 Difference]: Without dead ends: 139660 [2022-11-03 02:06:54,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=267, Unknown=1, NotChecked=36, Total=420 [2022-11-03 02:06:54,785 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 5620 mSDsluCounter, 2740 mSDsCounter, 0 mSdLazyCounter, 3686 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5620 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 5563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 3686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1830 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:54,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5620 Valid, 2077 Invalid, 5563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 3686 Invalid, 0 Unknown, 1830 Unchecked, 5.3s Time] [2022-11-03 02:06:55,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139660 states. [2022-11-03 02:06:56,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139660 to 72172. [2022-11-03 02:06:56,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72172 states, 69968 states have (on average 2.1510118911502403) internal successors, (150502), 72171 states have internal predecessors, (150502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:56,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72172 states to 72172 states and 150502 transitions. [2022-11-03 02:06:56,942 INFO L78 Accepts]: Start accepts. Automaton has 72172 states and 150502 transitions. Word has length 18 [2022-11-03 02:06:56,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:56,942 INFO L495 AbstractCegarLoop]: Abstraction has 72172 states and 150502 transitions. [2022-11-03 02:06:56,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:56,942 INFO L276 IsEmpty]: Start isEmpty. Operand 72172 states and 150502 transitions. [2022-11-03 02:06:56,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:06:56,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:56,943 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:56,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:06:57,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74037634-0379-42dc-90bf-a0c77ecd1b08/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:06:57,146 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting worker_fnErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-03 02:06:57,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:57,147 INFO L85 PathProgramCache]: Analyzing trace with hash 255898703, now seen corresponding path program 1 times [2022-11-03 02:06:57,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:57,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465079467] [2022-11-03 02:06:57,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:57,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:58,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:06:58,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:58,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465079467] [2022-11-03 02:06:58,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465079467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:58,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:58,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:06:58,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891131763] [2022-11-03 02:06:58,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:58,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:06:58,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:58,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:06:58,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:06:58,041 INFO L87 Difference]: Start difference. First operand 72172 states and 150502 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:07:01,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:07:01,623 INFO L93 Difference]: Finished difference Result 72178 states and 150514 transitions. [2022-11-03 02:07:01,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:07:01,624 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 18 [2022-11-03 02:07:01,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:07:01,776 INFO L225 Difference]: With dead ends: 72178 [2022-11-03 02:07:01,776 INFO L226 Difference]: Without dead ends: 72178 [2022-11-03 02:07:01,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-03 02:07:01,777 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 1530 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 2689 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 2709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:07:01,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 1073 Invalid, 2709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2689 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-03 02:07:01,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72178 states. [2022-11-03 02:07:03,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72178 to 72156. [2022-11-03 02:07:03,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72156 states, 69953 states have (on average 2.151015681957886) internal successors, (150470), 72155 states have internal predecessors, (150470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:07:03,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72156 states to 72156 states and 150470 transitions. [2022-11-03 02:07:03,301 INFO L78 Accepts]: Start accepts. Automaton has 72156 states and 150470 transitions. Word has length 18 [2022-11-03 02:07:03,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:07:03,301 INFO L495 AbstractCegarLoop]: Abstraction has 72156 states and 150470 transitions. [2022-11-03 02:07:03,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:07:03,302 INFO L276 IsEmpty]: Start isEmpty. Operand 72156 states and 150470 transitions. [2022-11-03 02:07:03,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:07:03,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:07:03,302 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:07:03,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:07:03,303 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting worker_fnErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-03 02:07:03,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:07:03,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2109117627, now seen corresponding path program 1 times [2022-11-03 02:07:03,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:07:03,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338859387] [2022-11-03 02:07:03,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:03,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:07:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:03,470 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:07:03,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:07:03,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338859387] [2022-11-03 02:07:03,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338859387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:07:03,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:07:03,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:07:03,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096928941] [2022-11-03 02:07:03,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:07:03,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:07:03,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:07:03,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:07:03,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:07:03,472 INFO L87 Difference]: Start difference. First operand 72156 states and 150470 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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)