./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_safe-10-racy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/fib_safe-10-racy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS --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 a48fe857d08ac3a4ba438de35e4bd3e7e5363b4267f7ed4ba2475f684ca08cd5 --- 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-8393723 [2022-11-19 06:58:05,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:58:05,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:58:05,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:58:05,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:58:05,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:58:05,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:58:05,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:58:05,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:58:05,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:58:05,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:58:05,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:58:05,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:58:05,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:58:05,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:58:05,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:58:05,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:58:05,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:58:05,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:58:05,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:58:05,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:58:05,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:58:05,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:58:05,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:58:05,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:58:05,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:58:05,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:58:05,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:58:05,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:58:05,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:58:05,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:58:05,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:58:05,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:58:05,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:58:05,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:58:05,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:58:05,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:58:05,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:58:05,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:58:05,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:58:05,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:58:05,645 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-19 06:58:05,684 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:58:05,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:58:05,685 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:58:05,685 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:58:05,686 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:58:05,686 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:58:05,686 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:58:05,687 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:58:05,687 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:58:05,687 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:58:05,688 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:58:05,689 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:58:05,689 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:58:05,689 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:58:05,689 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:58:05,690 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:58:05,690 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:58:05,690 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:58:05,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:58:05,691 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:58:05,691 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 06:58:05,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:58:05,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:58:05,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:58:05,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:58:05,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:58:05,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:58:05,693 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-19 06:58:05,693 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:58:05,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:58:05,694 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:58:05,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:58:05,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:58:05,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:58:05,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:58:05,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:58:05,696 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:58:05,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:58:05,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:58:05,696 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:58:05,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:58:05,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:58:05,697 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:58:05,697 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_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a48fe857d08ac3a4ba438de35e4bd3e7e5363b4267f7ed4ba2475f684ca08cd5 [2022-11-19 06:58:05,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:58:05,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:58:05,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:58:05,980 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:58:05,981 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:58:05,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread/fib_safe-10-racy.i [2022-11-19 06:58:06,042 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/data/5054cf5bf/4210046d6a824bbc9689af5730894dc2/FLAG494c9f745 [2022-11-19 06:58:06,553 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:58:06,553 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/sv-benchmarks/c/pthread/fib_safe-10-racy.i [2022-11-19 06:58:06,569 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/data/5054cf5bf/4210046d6a824bbc9689af5730894dc2/FLAG494c9f745 [2022-11-19 06:58:06,878 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/data/5054cf5bf/4210046d6a824bbc9689af5730894dc2 [2022-11-19 06:58:06,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:58:06,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:58:06,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:58:06,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:58:06,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:58:06,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:58:06" (1/1) ... [2022-11-19 06:58:06,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aacebf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:06, skipping insertion in model container [2022-11-19 06:58:06,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:58:06" (1/1) ... [2022-11-19 06:58:06,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:58:06,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:58:07,353 WARN L234 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_8ee87b15-b99b-4a05-8b43-9afd27e4082a/sv-benchmarks/c/pthread/fib_safe-10-racy.i[30815,30828] [2022-11-19 06:58:07,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:58:07,368 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:58:07,438 WARN L234 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_8ee87b15-b99b-4a05-8b43-9afd27e4082a/sv-benchmarks/c/pthread/fib_safe-10-racy.i[30815,30828] [2022-11-19 06:58:07,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:58:07,481 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:58:07,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07 WrapperNode [2022-11-19 06:58:07,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:58:07,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:58:07,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:58:07,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:58:07,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,562 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2022-11-19 06:58:07,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:58:07,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:58:07,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:58:07,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:58:07,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,610 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:58:07,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:58:07,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:58:07,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:58:07,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (1/1) ... [2022-11-19 06:58:07,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:58:07,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:58:07,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:58:07,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:58:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-19 06:58:07,699 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-19 06:58:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-19 06:58:07,699 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-19 06:58:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:58:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 06:58:07,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:58:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:58:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:58:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:58:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 06:58:07,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:58:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:58:07,701 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 06:58:07,877 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:58:07,879 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:58:08,192 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:58:08,246 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:58:08,246 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-19 06:58:08,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:08 BoogieIcfgContainer [2022-11-19 06:58:08,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:58:08,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:58:08,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:58:08,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:58:08,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:58:06" (1/3) ... [2022-11-19 06:58:08,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67336db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:08, skipping insertion in model container [2022-11-19 06:58:08,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:07" (2/3) ... [2022-11-19 06:58:08,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67336db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:08, skipping insertion in model container [2022-11-19 06:58:08,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:08" (3/3) ... [2022-11-19 06:58:08,259 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-10-racy.i [2022-11-19 06:58:08,267 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 06:58:08,299 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:58:08,299 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-19 06:58:08,299 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 06:58:08,419 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 06:58:08,468 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 06:58:08,484 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 192 places, 193 transitions, 396 flow [2022-11-19 06:58:08,486 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 192 places, 193 transitions, 396 flow [2022-11-19 06:58:08,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 193 transitions, 396 flow [2022-11-19 06:58:08,571 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-11-19 06:58:08,571 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 06:58:08,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 191 events. 8/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 366 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 159. Up to 2 conditions per place. [2022-11-19 06:58:08,589 INFO L119 LiptonReduction]: Number of co-enabled transitions 13080 [2022-11-19 06:58:13,752 INFO L134 LiptonReduction]: Checked pairs total: 14283 [2022-11-19 06:58:13,753 INFO L136 LiptonReduction]: Total number of compositions: 218 [2022-11-19 06:58:13,764 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 50 transitions, 110 flow [2022-11-19 06:58:13,876 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2122 states, 1161 states have (on average 5.544358311800172) internal successors, (6437), 2121 states have internal predecessors, (6437), 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) [2022-11-19 06:58:13,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:58:13,901 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;@4b705a30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:58:13,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-11-19 06:58:13,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 2122 states, 1161 states have (on average 5.544358311800172) internal successors, (6437), 2121 states have internal predecessors, (6437), 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) [2022-11-19 06:58:13,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 06:58:13,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:13,914 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 06:58:13,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-19 06:58:13,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:13,920 INFO L85 PathProgramCache]: Analyzing trace with hash 777, now seen corresponding path program 1 times [2022-11-19 06:58:13,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:13,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366419066] [2022-11-19 06:58:13,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:13,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:14,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:14,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:14,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366419066] [2022-11-19 06:58:14,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366419066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:14,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:14,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 06:58:14,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008967994] [2022-11-19 06:58:14,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:14,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:58:14,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:14,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:58:14,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:58:14,119 INFO L87 Difference]: Start difference. First operand has 2122 states, 1161 states have (on average 5.544358311800172) internal successors, (6437), 2121 states have internal predecessors, (6437), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-19 06:58:14,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:14,176 INFO L93 Difference]: Finished difference Result 87 states and 251 transitions. [2022-11-19 06:58:14,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:58:14,179 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-11-19 06:58:14,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:14,190 INFO L225 Difference]: With dead ends: 87 [2022-11-19 06:58:14,190 INFO L226 Difference]: Without dead ends: 71 [2022-11-19 06:58:14,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:58:14,195 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:14,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:58:14,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-19 06:58:14,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-11-19 06:58:14,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 69 states have (on average 2.9420289855072466) internal successors, (203), 70 states have internal predecessors, (203), 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) [2022-11-19 06:58:14,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 203 transitions. [2022-11-19 06:58:14,244 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 203 transitions. Word has length 1 [2022-11-19 06:58:14,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:14,245 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 203 transitions. [2022-11-19 06:58:14,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-11-19 06:58:14,251 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 203 transitions. [2022-11-19 06:58:14,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 06:58:14,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:14,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:14,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:58:14,255 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-19 06:58:14,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:14,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1123045942, now seen corresponding path program 1 times [2022-11-19 06:58:14,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:14,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469723860] [2022-11-19 06:58:14,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:14,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:14,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:14,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469723860] [2022-11-19 06:58:14,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469723860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:14,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:14,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:58:14,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908016711] [2022-11-19 06:58:14,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:14,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:58:14,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:14,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:58:14,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:58:14,438 INFO L87 Difference]: Start difference. First operand 71 states and 203 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-19 06:58:14,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:14,472 INFO L93 Difference]: Finished difference Result 80 states and 230 transitions. [2022-11-19 06:58:14,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:58:14,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 [2022-11-19 06:58:14,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:14,475 INFO L225 Difference]: With dead ends: 80 [2022-11-19 06:58:14,475 INFO L226 Difference]: Without dead ends: 80 [2022-11-19 06:58:14,475 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 [2022-11-19 06:58:14,476 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:14,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 6 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:58:14,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-19 06:58:14,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-11-19 06:58:14,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 78 states have (on average 2.948717948717949) internal successors, (230), 79 states have internal predecessors, (230), 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) [2022-11-19 06:58:14,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 230 transitions. [2022-11-19 06:58:14,486 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 230 transitions. Word has length 7 [2022-11-19 06:58:14,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:14,487 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 230 transitions. [2022-11-19 06:58:14,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-19 06:58:14,487 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 230 transitions. [2022-11-19 06:58:14,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 06:58:14,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:14,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:14,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:58:14,489 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-19 06:58:14,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:14,489 INFO L85 PathProgramCache]: Analyzing trace with hash -454653754, now seen corresponding path program 1 times [2022-11-19 06:58:14,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:14,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566003201] [2022-11-19 06:58:14,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:14,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:14,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:14,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:14,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566003201] [2022-11-19 06:58:14,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566003201] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:58:14,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829582200] [2022-11-19 06:58:14,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:14,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:58:14,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:58:14,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:58:14,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:58:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:14,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:58:14,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:58:14,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 06:58:14,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:58:14,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829582200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:14,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 06:58:14,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-19 06:58:14,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810168402] [2022-11-19 06:58:14,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:14,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:58:14,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:14,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:58:14,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:14,798 INFO L87 Difference]: Start difference. First operand 80 states and 230 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2022-11-19 06:58:14,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:14,860 INFO L93 Difference]: Finished difference Result 123 states and 355 transitions. [2022-11-19 06:58:14,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:58:14,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 8 [2022-11-19 06:58:14,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:14,862 INFO L225 Difference]: With dead ends: 123 [2022-11-19 06:58:14,862 INFO L226 Difference]: Without dead ends: 123 [2022-11-19 06:58:14,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:14,864 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:14,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:58:14,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-11-19 06:58:14,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 83. [2022-11-19 06:58:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 81 states have (on average 2.950617283950617) internal successors, (239), 82 states have internal predecessors, (239), 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) [2022-11-19 06:58:14,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 239 transitions. [2022-11-19 06:58:14,874 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 239 transitions. Word has length 8 [2022-11-19 06:58:14,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:14,875 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 239 transitions. [2022-11-19 06:58:14,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2022-11-19 06:58:14,875 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 239 transitions. [2022-11-19 06:58:14,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 06:58:14,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:14,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:14,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 06:58:15,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:58:15,082 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-19 06:58:15,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:15,083 INFO L85 PathProgramCache]: Analyzing trace with hash -814915347, now seen corresponding path program 1 times [2022-11-19 06:58:15,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:15,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676435260] [2022-11-19 06:58:15,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:15,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:15,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:15,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:15,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676435260] [2022-11-19 06:58:15,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676435260] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:58:15,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430549893] [2022-11-19 06:58:15,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:15,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:58:15,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:58:15,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:58:15,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:58:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:15,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:58:15,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:58:15,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:15,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:58:15,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:15,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430549893] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:58:15,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1246777483] [2022-11-19 06:58:15,319 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) [2022-11-19 06:58:15,322 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:58:15,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-19 06:58:15,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265837877] [2022-11-19 06:58:15,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:58:15,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 06:58:15,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:15,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 06:58:15,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:58:15,324 INFO L87 Difference]: Start difference. First operand 83 states and 239 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2022-11-19 06:58:15,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:15,386 INFO L93 Difference]: Finished difference Result 110 states and 320 transitions. [2022-11-19 06:58:15,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 06:58:15,387 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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 10 [2022-11-19 06:58:15,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:15,388 INFO L225 Difference]: With dead ends: 110 [2022-11-19 06:58:15,389 INFO L226 Difference]: Without dead ends: 110 [2022-11-19 06:58:15,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:58:15,390 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 42 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:15,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 12 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:58:15,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-11-19 06:58:15,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-11-19 06:58:15,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 2.962962962962963) internal successors, (320), 109 states have internal predecessors, (320), 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) [2022-11-19 06:58:15,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 320 transitions. [2022-11-19 06:58:15,401 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 320 transitions. Word has length 10 [2022-11-19 06:58:15,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:15,401 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 320 transitions. [2022-11-19 06:58:15,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2022-11-19 06:58:15,402 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 320 transitions. [2022-11-19 06:58:15,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 06:58:15,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:15,403 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:15,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:58:15,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:58:15,609 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-19 06:58:15,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:15,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1330887315, now seen corresponding path program 2 times [2022-11-19 06:58:15,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:15,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714956445] [2022-11-19 06:58:15,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:15,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:15,793 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:15,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:15,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714956445] [2022-11-19 06:58:15,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714956445] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:58:15,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130670661] [2022-11-19 06:58:15,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 06:58:15,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:58:15,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:58:15,796 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:58:15,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 06:58:15,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 06:58:15,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:58:15,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 06:58:15,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:58:15,930 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:15,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:58:15,987 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:15,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130670661] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:58:15,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [855241419] [2022-11-19 06:58:15,988 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) [2022-11-19 06:58:15,990 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:58:15,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-11-19 06:58:15,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685579462] [2022-11-19 06:58:15,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:58:15,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 06:58:15,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:15,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 06:58:15,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-19 06:58:15,992 INFO L87 Difference]: Start difference. First operand 110 states and 320 transitions. Second operand has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 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) [2022-11-19 06:58:16,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:16,127 INFO L93 Difference]: Finished difference Result 164 states and 482 transitions. [2022-11-19 06:58:16,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 06:58:16,128 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 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 [2022-11-19 06:58:16,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:16,130 INFO L225 Difference]: With dead ends: 164 [2022-11-19 06:58:16,130 INFO L226 Difference]: Without dead ends: 164 [2022-11-19 06:58:16,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-19 06:58:16,131 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 99 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:16,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 21 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:58:16,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-19 06:58:16,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2022-11-19 06:58:16,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 162 states have (on average 2.9753086419753085) internal successors, (482), 163 states have internal predecessors, (482), 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) [2022-11-19 06:58:16,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 482 transitions. [2022-11-19 06:58:16,142 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 482 transitions. Word has length 13 [2022-11-19 06:58:16,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:16,142 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 482 transitions. [2022-11-19 06:58:16,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 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) [2022-11-19 06:58:16,142 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 482 transitions. [2022-11-19 06:58:16,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 06:58:16,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:16,144 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:16,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 06:58:16,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:58:16,350 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-19 06:58:16,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:16,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1053911699, now seen corresponding path program 3 times [2022-11-19 06:58:16,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:16,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943932134] [2022-11-19 06:58:16,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:16,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:16,683 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:16,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:16,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943932134] [2022-11-19 06:58:16,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943932134] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:58:16,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821326477] [2022-11-19 06:58:16,684 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 06:58:16,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:58:16,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:58:16,687 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:58:16,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:58:16,834 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 06:58:16,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 06:58:16,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 06:58:16,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:58:16,901 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:16,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:58:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:58:17,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821326477] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:58:17,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2136648769] [2022-11-19 06:58:17,153 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) [2022-11-19 06:58:17,153 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 06:58:17,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-11-19 06:58:17,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814593587] [2022-11-19 06:58:17,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 06:58:17,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-19 06:58:17,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:17,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-19 06:58:17,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-11-19 06:58:17,156 INFO L87 Difference]: Start difference. First operand 164 states and 482 transitions. Second operand has 25 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 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) [2022-11-19 06:58:17,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:17,471 INFO L93 Difference]: Finished difference Result 272 states and 806 transitions. [2022-11-19 06:58:17,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-19 06:58:17,472 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 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 19 [2022-11-19 06:58:17,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:17,475 INFO L225 Difference]: With dead ends: 272 [2022-11-19 06:58:17,475 INFO L226 Difference]: Without dead ends: 272 [2022-11-19 06:58:17,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-11-19 06:58:17,476 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 351 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:17,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 15 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 06:58:17,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2022-11-19 06:58:17,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2022-11-19 06:58:17,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 270 states have (on average 2.9851851851851854) internal successors, (806), 271 states have internal predecessors, (806), 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) [2022-11-19 06:58:17,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 806 transitions. [2022-11-19 06:58:17,508 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 806 transitions. Word has length 19 [2022-11-19 06:58:17,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:17,508 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 806 transitions. [2022-11-19 06:58:17,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 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) [2022-11-19 06:58:17,509 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 806 transitions. [2022-11-19 06:58:17,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-19 06:58:17,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:17,514 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:17,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 06:58:17,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 06:58:17,719 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-19 06:58:17,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:17,720 INFO L85 PathProgramCache]: Analyzing trace with hash 708785517, now seen corresponding path program 4 times [2022-11-19 06:58:17,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:17,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389521846] [2022-11-19 06:58:17,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:17,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:58:17,808 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 06:58:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:58:17,908 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 06:58:17,908 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 06:58:17,910 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-11-19 06:58:17,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-11-19 06:58:17,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-11-19 06:58:17,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-11-19 06:58:17,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-11-19 06:58:17,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-11-19 06:58:17,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-11-19 06:58:17,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-11-19 06:58:17,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-11-19 06:58:17,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-11-19 06:58:17,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-11-19 06:58:17,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-11-19 06:58:17,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-11-19 06:58:17,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-11-19 06:58:17,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-11-19 06:58:17,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-11-19 06:58:17,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2022-11-19 06:58:17,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2022-11-19 06:58:17,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-11-19 06:58:17,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-11-19 06:58:17,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-11-19 06:58:17,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-11-19 06:58:17,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-11-19 06:58:17,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-11-19 06:58:17,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-11-19 06:58:17,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2022-11-19 06:58:17,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2022-11-19 06:58:17,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-11-19 06:58:17,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-11-19 06:58:17,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-11-19 06:58:17,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-11-19 06:58:17,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-11-19 06:58:17,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-11-19 06:58:17,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-11-19 06:58:17,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-11-19 06:58:17,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-11-19 06:58:17,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-11-19 06:58:17,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-11-19 06:58:17,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-11-19 06:58:17,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-11-19 06:58:17,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-11-19 06:58:17,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-11-19 06:58:17,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-11-19 06:58:17,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-11-19 06:58:17,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-11-19 06:58:17,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-11-19 06:58:17,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 06:58:17,929 INFO L444 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2022-11-19 06:58:17,935 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 06:58:17,936 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:58:18,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:58:18 BasicIcfg [2022-11-19 06:58:18,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:58:18,062 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:58:18,062 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:58:18,063 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:58:18,063 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:08" (3/4) ... [2022-11-19 06:58:18,066 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 06:58:18,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:58:18,068 INFO L158 Benchmark]: Toolchain (without parser) took 11184.34ms. Allocated memory was 134.2MB in the beginning and 218.1MB in the end (delta: 83.9MB). Free memory was 98.8MB in the beginning and 86.0MB in the end (delta: 12.8MB). Peak memory consumption was 96.4MB. Max. memory is 16.1GB. [2022-11-19 06:58:18,068 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 77.6MB. Free memory was 33.8MB in the beginning and 33.7MB in the end (delta: 68.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:58:18,068 INFO L158 Benchmark]: CACSL2BoogieTranslator took 595.19ms. Allocated memory is still 134.2MB. Free memory was 98.8MB in the beginning and 98.2MB in the end (delta: 622.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 06:58:18,068 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.67ms. Allocated memory is still 134.2MB. Free memory was 98.2MB in the beginning and 96.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:58:18,069 INFO L158 Benchmark]: Boogie Preprocessor took 62.62ms. Allocated memory is still 134.2MB. Free memory was 96.2MB in the beginning and 94.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:58:18,069 INFO L158 Benchmark]: RCFGBuilder took 623.55ms. Allocated memory is still 134.2MB. Free memory was 94.5MB in the beginning and 73.1MB in the end (delta: 21.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-19 06:58:18,069 INFO L158 Benchmark]: TraceAbstraction took 9810.20ms. Allocated memory was 134.2MB in the beginning and 218.1MB in the end (delta: 83.9MB). Free memory was 72.7MB in the beginning and 86.0MB in the end (delta: -13.3MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. [2022-11-19 06:58:18,069 INFO L158 Benchmark]: Witness Printer took 4.06ms. Allocated memory is still 218.1MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:58:18,070 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 77.6MB. Free memory was 33.8MB in the beginning and 33.7MB in the end (delta: 68.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 595.19ms. Allocated memory is still 134.2MB. Free memory was 98.8MB in the beginning and 98.2MB in the end (delta: 622.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.67ms. Allocated memory is still 134.2MB. Free memory was 98.2MB in the beginning and 96.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.62ms. Allocated memory is still 134.2MB. Free memory was 96.2MB in the beginning and 94.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 623.55ms. Allocated memory is still 134.2MB. Free memory was 94.5MB in the beginning and 73.1MB in the end (delta: 21.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 9810.20ms. Allocated memory was 134.2MB in the beginning and 218.1MB in the end (delta: 83.9MB). Free memory was 72.7MB in the beginning and 86.0MB in the end (delta: -13.3MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. * Witness Printer took 4.06ms. Allocated memory is still 218.1MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 192 PlacesBefore, 53 PlacesAfterwards, 193 TransitionsBefore, 50 TransitionsAfterwards, 13080 CoEnabledTransitionPairs, 8 FixpointIterations, 35 TrivialSequentialCompositions, 165 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 4 ChoiceCompositions, 218 TotalNumberOfCompositions, 14283 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12363, independent: 12250, independent conditional: 0, independent unconditional: 12250, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8102, independent: 8044, independent conditional: 0, independent unconditional: 8044, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8102, independent: 7936, independent conditional: 0, independent unconditional: 7936, dependent: 166, dependent conditional: 0, dependent unconditional: 166, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 166, independent: 108, independent conditional: 0, independent unconditional: 108, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 233, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 131, dependent conditional: 0, dependent unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12363, independent: 4206, independent conditional: 0, independent unconditional: 4206, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 8102, unknown conditional: 0, unknown unconditional: 8102] , Statistics on independence cache: Total cache size (in pairs): 189, Positive cache size: 179, Positive conditional cache size: 0, Positive unconditional cache size: 179, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 725]: Data race detected Data race detected The following path leads to a data race: [L703] 0 int cur = 1, prev = 0, next = 0; [L683] 0 int i, j; [L686] 0 int p, q; [L704] 0 int x; [L714] 0 pthread_t id1, id2; [L716] 0 i = 1 [L719] 0 j = 1 [L721] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=28658, arg={0:0}, argc=28658, argv={28660:28661}, argv={28660:28661}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, pthread_create(&id1, ((void *)0), t1, ((void *)0))=-2, q=0, x=0] [L688] 1 p = 0 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L722] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=28658, arg={0:0}, arg={0:0}, arg={0:0}, argc=28658, argv={28660:28661}, argv={28660:28661}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=-1, q=0, x=0] [L723] CALL, EXPR 0 fib() [L706] 0 x = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=2584, i=1, j=1, next=2584, p=0, prev=1597, q=0, x=17] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=4181, i=1, j=1, next=4181, p=0, prev=2584, q=0, x=18] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=6765, i=1, j=1, next=6765, p=0, prev=4181, q=0, x=19] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=10946, i=1, j=1, next=10946, p=0, prev=6765, q=0, x=20] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=17711, i=1, j=1, next=17711, p=0, prev=10946, q=0, x=21] [L706] 0 x < 22 [L706] COND TRUE 0 x < 22 [L707] EXPR 0 prev + cur [L707] 0 next = prev + cur [L708] 0 prev = cur [L709] 0 cur = next [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=28657, i=1, j=1, next=28657, p=0, prev=17711, q=0, x=22] [L706] 0 x < 22 [L706] COND FALSE 0 !(x < 22) [L711] 0 return prev; [L723] RET, EXPR 0 fib() [L723] 0 int correct = fib(); [L725] 0 i <= correct VAL [\old(argc)=28658, arg={0:0}, arg={0:0}, arg={0:0}, argc=28658, argv={28660:28661}, argv={28660:28661}, correct=17711, cur=28657, i=1, id1={5:0}, id2={3:0}, j=1, next=28657, p=0, prev=17711, q=0, x=22] [L688] 1 p < 10 [L688] COND TRUE 1 p < 10 [L690] EXPR 1 i + j [L690] 1 i = i + j [L688] 1 p++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=28657, i=2, j=1, next=28657, p=1, prev=17711, q=0, x=22] [L725] 0 i <= correct VAL [\old(argc)=28658, arg={0:0}, arg={0:0}, arg={0:0}, argc=28658, argv={28660:28661}, argv={28660:28661}, correct=17711, cur=28657, i=2, id1={5:0}, id2={3:0}, j=1, next=28657, p=1, prev=17711, q=0, x=22] Now there is a data race on ~i~0 between C: i = i + j [690] and C: i <= correct [725] - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 246 locations, 46 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 7, TraceHistogramMax: 22, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 510 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 510 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 396 IncrementalHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 18 mSDtfsCounter, 396 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2122occurred in iteration=0, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 40 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 707 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 1/200 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-19 06:58:18,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ee87b15-b99b-4a05-8b43-9afd27e4082a/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE