./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/peterson-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/peterson-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW --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 a9033b662018b20bd097f60ff2bfef7dede098e2e465ab8a115c418add4298d1 --- 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-4e7fbc6 [2022-11-23 15:22:49,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:22:49,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:22:49,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:22:49,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:22:49,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:22:49,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:22:49,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:22:49,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:22:49,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:22:49,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:22:49,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:22:49,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:22:49,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:22:49,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:22:49,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:22:49,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:22:49,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:22:49,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:22:49,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:22:49,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:22:49,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:22:49,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:22:49,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:22:49,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:22:49,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:22:49,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:22:49,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:22:49,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:22:49,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:22:49,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:22:49,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:22:49,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:22:49,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:22:49,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:22:49,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:22:49,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:22:49,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:22:49,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:22:49,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:22:49,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:22:49,304 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 15:22:49,345 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:22:49,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:22:49,345 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:22:49,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:22:49,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:22:49,347 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:22:49,347 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:22:49,347 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:22:49,347 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:22:49,347 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:22:49,348 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:22:49,348 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:22:49,349 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:22:49,349 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:22:49,349 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:22:49,349 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:22:49,349 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:22:49,350 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:22:49,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:22:49,351 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:22:49,351 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:22:49,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:22:49,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:22:49,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:22:49,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:22:49,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:22:49,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:22:49,353 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 15:22:49,353 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:22:49,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:22:49,353 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:22:49,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:22:49,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:22:49,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:22:49,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:22:49,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:22:49,355 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:22:49,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:22:49,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:22:49,355 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:22:49,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:22:49,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:22:49,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:22:49,356 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_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9033b662018b20bd097f60ff2bfef7dede098e2e465ab8a115c418add4298d1 [2022-11-23 15:22:49,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:22:49,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:22:49,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:22:49,720 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:22:49,720 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:22:49,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-atomic/peterson-b.i [2022-11-23 15:22:52,652 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:22:52,924 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:22:52,928 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/sv-benchmarks/c/pthread-atomic/peterson-b.i [2022-11-23 15:22:53,000 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW/data/1c644da4a/3c2f8ec46bdc4415baca61e8739e1d5a/FLAGe847210a6 [2022-11-23 15:22:53,019 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW/data/1c644da4a/3c2f8ec46bdc4415baca61e8739e1d5a [2022-11-23 15:22:53,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:22:53,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:22:53,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:22:53,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:22:53,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:22:53,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:22:53" (1/1) ... [2022-11-23 15:22:53,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72cc4896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:53, skipping insertion in model container [2022-11-23 15:22:53,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:22:53" (1/1) ... [2022-11-23 15:22:53,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:22:53,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:22:53,460 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/sv-benchmarks/c/pthread-atomic/peterson-b.i[30010,30023] [2022-11-23 15:22:53,465 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/sv-benchmarks/c/pthread-atomic/peterson-b.i[30174,30187] [2022-11-23 15:22:53,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:22:53,488 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:22:53,540 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/sv-benchmarks/c/pthread-atomic/peterson-b.i[30010,30023] [2022-11-23 15:22:53,550 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/sv-benchmarks/c/pthread-atomic/peterson-b.i[30174,30187] [2022-11-23 15:22:53,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:22:53,605 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:22:53,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:53 WrapperNode [2022-11-23 15:22:53,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:22:53,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:22:53,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:22:53,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:22:53,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:53" (1/1) ... [2022-11-23 15:22:53,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:53" (1/1) ... [2022-11-23 15:22:53,684 INFO L138 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-11-23 15:22:53,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:22:53,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:22:53,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:22:53,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:22:53,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:53" (1/1) ... [2022-11-23 15:22:53,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:53" (1/1) ... [2022-11-23 15:22:53,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:53" (1/1) ... [2022-11-23 15:22:53,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:53" (1/1) ... [2022-11-23 15:22:53,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:53" (1/1) ... [2022-11-23 15:22:53,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:53" (1/1) ... [2022-11-23 15:22:53,729 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:53" (1/1) ... [2022-11-23 15:22:53,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:53" (1/1) ... [2022-11-23 15:22:53,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:22:53,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:22:53,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:22:53,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:22:53,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:53" (1/1) ... [2022-11-23 15:22:53,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:22:53,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:22:53,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:22:53,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:22:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:22:53,839 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-23 15:22:53,840 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-23 15:22:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-23 15:22:53,840 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-23 15:22:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:22:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:22:53,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:22:53,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:22:53,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:22:53,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:22:53,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:22:53,842 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 15:22:54,046 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:22:54,048 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:22:54,313 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:22:54,321 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:22:54,321 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:22:54,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:22:54 BoogieIcfgContainer [2022-11-23 15:22:54,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:22:54,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:22:54,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:22:54,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:22:54,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:22:53" (1/3) ... [2022-11-23 15:22:54,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed1b81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:22:54, skipping insertion in model container [2022-11-23 15:22:54,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:53" (2/3) ... [2022-11-23 15:22:54,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed1b81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:22:54, skipping insertion in model container [2022-11-23 15:22:54,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:22:54" (3/3) ... [2022-11-23 15:22:54,345 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson-b.i [2022-11-23 15:22:54,354 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 15:22:54,365 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:22:54,365 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-23 15:22:54,365 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 15:22:54,483 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-23 15:22:54,559 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:22:54,583 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 155 places, 156 transitions, 328 flow [2022-11-23 15:22:54,586 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 155 places, 156 transitions, 328 flow [2022-11-23 15:22:54,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 156 transitions, 328 flow [2022-11-23 15:22:54,724 INFO L130 PetriNetUnfolder]: 8/154 cut-off events. [2022-11-23 15:22:54,724 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 15:22:54,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 154 events. 8/154 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 287 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2022-11-23 15:22:54,750 INFO L119 LiptonReduction]: Number of co-enabled transitions 8036 [2022-11-23 15:22:57,695 INFO L134 LiptonReduction]: Checked pairs total: 28907 [2022-11-23 15:22:57,697 INFO L136 LiptonReduction]: Total number of compositions: 99 [2022-11-23 15:22:57,705 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 74 transitions, 164 flow [2022-11-23 15:22:57,877 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2493 states, 2358 states have (on average 2.96225614927905) internal successors, (6985), 2492 states have internal predecessors, (6985), 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) [2022-11-23 15:22:57,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:22:57,911 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;@53cde6e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:22:57,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2022-11-23 15:22:57,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 2493 states, 2358 states have (on average 2.96225614927905) internal successors, (6985), 2492 states have internal predecessors, (6985), 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) [2022-11-23 15:22:57,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 15:22:57,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:57,926 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 15:22:57,927 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-23 15:22:57,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:57,933 INFO L85 PathProgramCache]: Analyzing trace with hash 548532999, now seen corresponding path program 1 times [2022-11-23 15:22:57,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:57,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479552608] [2022-11-23 15:22:57,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:57,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:58,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:58,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479552608] [2022-11-23 15:22:58,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479552608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:58,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:58,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:22:58,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394086391] [2022-11-23 15:22:58,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:58,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:22:58,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:58,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:22:58,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:22:58,237 INFO L87 Difference]: Start difference. First operand has 2493 states, 2358 states have (on average 2.96225614927905) internal successors, (6985), 2492 states have internal predecessors, (6985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:22:58,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:58,444 INFO L93 Difference]: Finished difference Result 1743 states and 4420 transitions. [2022-11-23 15:22:58,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:22:58,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 15:22:58,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:58,484 INFO L225 Difference]: With dead ends: 1743 [2022-11-23 15:22:58,484 INFO L226 Difference]: Without dead ends: 1740 [2022-11-23 15:22:58,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:22:58,490 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 32 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:58,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 66 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:22:58,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2022-11-23 15:22:58,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1700. [2022-11-23 15:22:58,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1639 states have (on average 2.63026235509457) internal successors, (4311), 1699 states have internal predecessors, (4311), 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) [2022-11-23 15:22:58,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 4311 transitions. [2022-11-23 15:22:58,647 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 4311 transitions. Word has length 5 [2022-11-23 15:22:58,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:58,648 INFO L495 AbstractCegarLoop]: Abstraction has 1700 states and 4311 transitions. [2022-11-23 15:22:58,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:22:58,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 4311 transitions. [2022-11-23 15:22:58,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 15:22:58,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:58,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:58,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:22:58,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-23 15:22:58,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:58,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1109450121, now seen corresponding path program 1 times [2022-11-23 15:22:58,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:58,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933968924] [2022-11-23 15:22:58,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:58,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:58,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:58,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:58,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933968924] [2022-11-23 15:22:58,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933968924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:58,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:58,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:22:58,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676713289] [2022-11-23 15:22:58,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:58,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:22:58,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:58,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:22:58,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:22:58,775 INFO L87 Difference]: Start difference. First operand 1700 states and 4311 transitions. Second operand has 3 states, 2 states have (on average 3.5) 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) [2022-11-23 15:22:58,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:58,895 INFO L93 Difference]: Finished difference Result 1770 states and 4488 transitions. [2022-11-23 15:22:58,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:22:58,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) 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 [2022-11-23 15:22:58,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:58,907 INFO L225 Difference]: With dead ends: 1770 [2022-11-23 15:22:58,908 INFO L226 Difference]: Without dead ends: 1770 [2022-11-23 15:22:58,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:22:58,909 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 31 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:58,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 65 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:22:58,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2022-11-23 15:22:58,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1728. [2022-11-23 15:22:58,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1728 states, 1668 states have (on average 2.6270983213429258) internal successors, (4382), 1727 states have internal predecessors, (4382), 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) [2022-11-23 15:22:58,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 4382 transitions. [2022-11-23 15:22:58,964 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 4382 transitions. Word has length 7 [2022-11-23 15:22:58,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:58,965 INFO L495 AbstractCegarLoop]: Abstraction has 1728 states and 4382 transitions. [2022-11-23 15:22:58,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) 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) [2022-11-23 15:22:58,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 4382 transitions. [2022-11-23 15:22:58,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:22:58,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:58,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:58,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:22:58,966 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-23 15:22:58,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:58,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1003486148, now seen corresponding path program 1 times [2022-11-23 15:22:58,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:58,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075825259] [2022-11-23 15:22:58,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:58,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:59,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:59,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:59,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075825259] [2022-11-23 15:22:59,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075825259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:59,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:59,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:22:59,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801997372] [2022-11-23 15:22:59,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:59,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:22:59,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:59,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:22:59,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:22:59,047 INFO L87 Difference]: Start difference. First operand 1728 states and 4382 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) [2022-11-23 15:22:59,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:59,151 INFO L93 Difference]: Finished difference Result 1760 states and 4465 transitions. [2022-11-23 15:22:59,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:22:59,186 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 [2022-11-23 15:22:59,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:59,200 INFO L225 Difference]: With dead ends: 1760 [2022-11-23 15:22:59,200 INFO L226 Difference]: Without dead ends: 1760 [2022-11-23 15:22:59,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:22:59,201 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 29 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:59,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 64 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:22:59,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2022-11-23 15:22:59,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1760. [2022-11-23 15:22:59,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1700 states have (on average 2.626470588235294) internal successors, (4465), 1759 states have internal predecessors, (4465), 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) [2022-11-23 15:22:59,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 4465 transitions. [2022-11-23 15:22:59,253 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 4465 transitions. Word has length 8 [2022-11-23 15:22:59,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:59,253 INFO L495 AbstractCegarLoop]: Abstraction has 1760 states and 4465 transitions. [2022-11-23 15:22:59,253 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) [2022-11-23 15:22:59,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 4465 transitions. [2022-11-23 15:22:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:22:59,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:59,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:59,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:22:59,255 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-23 15:22:59,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:59,255 INFO L85 PathProgramCache]: Analyzing trace with hash 2017529888, now seen corresponding path program 1 times [2022-11-23 15:22:59,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:59,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084773252] [2022-11-23 15:22:59,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:59,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:59,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:59,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:59,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084773252] [2022-11-23 15:22:59,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084773252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:59,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:59,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:22:59,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236185437] [2022-11-23 15:22:59,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:59,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:22:59,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:59,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:22:59,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:22:59,316 INFO L87 Difference]: Start difference. First operand 1760 states and 4465 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:22:59,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:59,432 INFO L93 Difference]: Finished difference Result 2750 states and 7006 transitions. [2022-11-23 15:22:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:22:59,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-23 15:22:59,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:59,448 INFO L225 Difference]: With dead ends: 2750 [2022-11-23 15:22:59,448 INFO L226 Difference]: Without dead ends: 2750 [2022-11-23 15:22:59,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:22:59,450 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 51 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:59,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 65 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:22:59,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2022-11-23 15:22:59,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 1798. [2022-11-23 15:22:59,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1739 states have (on average 2.62392179413456) internal successors, (4563), 1797 states have internal predecessors, (4563), 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) [2022-11-23 15:22:59,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 4563 transitions. [2022-11-23 15:22:59,537 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 4563 transitions. Word has length 10 [2022-11-23 15:22:59,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:59,537 INFO L495 AbstractCegarLoop]: Abstraction has 1798 states and 4563 transitions. [2022-11-23 15:22:59,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:22:59,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 4563 transitions. [2022-11-23 15:22:59,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:22:59,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:59,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:59,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:22:59,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-23 15:22:59,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:59,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1854715697, now seen corresponding path program 1 times [2022-11-23 15:22:59,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:59,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760026633] [2022-11-23 15:22:59,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:59,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:59,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:59,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:59,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760026633] [2022-11-23 15:22:59,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760026633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:59,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:59,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:22:59,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781329626] [2022-11-23 15:22:59,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:59,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:22:59,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:59,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:22:59,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:22:59,589 INFO L87 Difference]: Start difference. First operand 1798 states and 4563 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:22:59,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:59,697 INFO L93 Difference]: Finished difference Result 1820 states and 4619 transitions. [2022-11-23 15:22:59,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:22:59,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-23 15:22:59,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:59,712 INFO L225 Difference]: With dead ends: 1820 [2022-11-23 15:22:59,713 INFO L226 Difference]: Without dead ends: 1820 [2022-11-23 15:22:59,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:22:59,713 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 29 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:59,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 63 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:22:59,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2022-11-23 15:22:59,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1820. [2022-11-23 15:22:59,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1820 states, 1763 states have (on average 2.6199659671015314) internal successors, (4619), 1819 states have internal predecessors, (4619), 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) [2022-11-23 15:22:59,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 4619 transitions. [2022-11-23 15:22:59,772 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 4619 transitions. Word has length 10 [2022-11-23 15:22:59,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:22:59,772 INFO L495 AbstractCegarLoop]: Abstraction has 1820 states and 4619 transitions. [2022-11-23 15:22:59,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:22:59,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 4619 transitions. [2022-11-23 15:22:59,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:22:59,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:22:59,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:22:59,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:22:59,780 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-23 15:22:59,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:22:59,781 INFO L85 PathProgramCache]: Analyzing trace with hash 29792929, now seen corresponding path program 1 times [2022-11-23 15:22:59,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:22:59,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287964566] [2022-11-23 15:22:59,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:22:59,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:22:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:22:59,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:22:59,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:22:59,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287964566] [2022-11-23 15:22:59,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287964566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:22:59,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:22:59,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:22:59,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95256941] [2022-11-23 15:22:59,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:22:59,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:22:59,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:22:59,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:22:59,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:22:59,839 INFO L87 Difference]: Start difference. First operand 1820 states and 4619 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:22:59,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:22:59,975 INFO L93 Difference]: Finished difference Result 2794 states and 7118 transitions. [2022-11-23 15:22:59,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:22:59,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-23 15:22:59,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:22:59,991 INFO L225 Difference]: With dead ends: 2794 [2022-11-23 15:22:59,991 INFO L226 Difference]: Without dead ends: 2794 [2022-11-23 15:22:59,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:22:59,992 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 49 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:22:59,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 65 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:23:00,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2022-11-23 15:23:00,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 1850. [2022-11-23 15:23:00,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1850 states, 1796 states have (on average 2.6141425389755013) internal successors, (4695), 1849 states have internal predecessors, (4695), 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) [2022-11-23 15:23:00,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1850 states to 1850 states and 4695 transitions. [2022-11-23 15:23:00,072 INFO L78 Accepts]: Start accepts. Automaton has 1850 states and 4695 transitions. Word has length 12 [2022-11-23 15:23:00,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:00,073 INFO L495 AbstractCegarLoop]: Abstraction has 1850 states and 4695 transitions. [2022-11-23 15:23:00,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:23:00,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1850 states and 4695 transitions. [2022-11-23 15:23:00,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 15:23:00,075 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:00,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:00,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:23:00,076 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-23 15:23:00,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:00,076 INFO L85 PathProgramCache]: Analyzing trace with hash 460996567, now seen corresponding path program 1 times [2022-11-23 15:23:00,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:00,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210128054] [2022-11-23 15:23:00,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:00,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:23:00,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:23:00,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:23:00,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210128054] [2022-11-23 15:23:00,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210128054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:23:00,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:23:00,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:23:00,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998534227] [2022-11-23 15:23:00,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:23:00,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:23:00,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:23:00,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:23:00,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:23:00,121 INFO L87 Difference]: Start difference. First operand 1850 states and 4695 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:23:00,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:23:00,249 INFO L93 Difference]: Finished difference Result 3388 states and 8549 transitions. [2022-11-23 15:23:00,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:23:00,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-23 15:23:00,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:23:00,279 INFO L225 Difference]: With dead ends: 3388 [2022-11-23 15:23:00,279 INFO L226 Difference]: Without dead ends: 3388 [2022-11-23 15:23:00,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:23:00,280 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 57 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:23:00,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 73 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:23:00,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2022-11-23 15:23:00,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 1868. [2022-11-23 15:23:00,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1821 states have (on average 2.600768808347062) internal successors, (4736), 1867 states have internal predecessors, (4736), 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) [2022-11-23 15:23:00,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 4736 transitions. [2022-11-23 15:23:00,353 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 4736 transitions. Word has length 13 [2022-11-23 15:23:00,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:23:00,354 INFO L495 AbstractCegarLoop]: Abstraction has 1868 states and 4736 transitions. [2022-11-23 15:23:00,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:23:00,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 4736 transitions. [2022-11-23 15:23:00,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 15:23:00,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:23:00,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:00,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 15:23:00,357 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-23 15:23:00,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:23:00,358 INFO L85 PathProgramCache]: Analyzing trace with hash 385851099, now seen corresponding path program 1 times [2022-11-23 15:23:00,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:23:00,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710775329] [2022-11-23 15:23:00,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:23:00,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:23:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:23:00,385 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:23:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:23:00,422 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:23:00,423 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:23:00,424 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (31 of 32 remaining) [2022-11-23 15:23:00,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2022-11-23 15:23:00,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2022-11-23 15:23:00,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2022-11-23 15:23:00,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2022-11-23 15:23:00,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2022-11-23 15:23:00,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (25 of 32 remaining) [2022-11-23 15:23:00,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2022-11-23 15:23:00,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2022-11-23 15:23:00,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2022-11-23 15:23:00,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2022-11-23 15:23:00,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2022-11-23 15:23:00,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2022-11-23 15:23:00,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2022-11-23 15:23:00,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2022-11-23 15:23:00,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2022-11-23 15:23:00,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2022-11-23 15:23:00,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 32 remaining) [2022-11-23 15:23:00,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 32 remaining) [2022-11-23 15:23:00,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2022-11-23 15:23:00,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2022-11-23 15:23:00,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2022-11-23 15:23:00,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2022-11-23 15:23:00,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2022-11-23 15:23:00,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2022-11-23 15:23:00,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2022-11-23 15:23:00,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2022-11-23 15:23:00,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2022-11-23 15:23:00,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2022-11-23 15:23:00,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2022-11-23 15:23:00,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2022-11-23 15:23:00,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2022-11-23 15:23:00,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:23:00,433 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:23:00,440 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 15:23:00,440 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:23:00,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:23:00 BasicIcfg [2022-11-23 15:23:00,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:23:00,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:23:00,468 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:23:00,468 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:23:00,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:22:54" (3/4) ... [2022-11-23 15:23:00,471 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:23:00,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:23:00,472 INFO L158 Benchmark]: Toolchain (without parser) took 7449.42ms. Allocated memory was 165.7MB in the beginning and 209.7MB in the end (delta: 44.0MB). Free memory was 138.5MB in the beginning and 75.5MB in the end (delta: 63.1MB). Peak memory consumption was 106.6MB. Max. memory is 16.1GB. [2022-11-23 15:23:00,472 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 165.7MB. Free memory was 135.3MB in the beginning and 135.1MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:23:00,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.09ms. Allocated memory is still 165.7MB. Free memory was 138.5MB in the beginning and 118.6MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:23:00,473 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.77ms. Allocated memory is still 165.7MB. Free memory was 118.6MB in the beginning and 116.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:23:00,473 INFO L158 Benchmark]: Boogie Preprocessor took 57.99ms. Allocated memory is still 165.7MB. Free memory was 116.5MB in the beginning and 115.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:23:00,473 INFO L158 Benchmark]: RCFGBuilder took 579.95ms. Allocated memory is still 165.7MB. Free memory was 115.0MB in the beginning and 98.3MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 15:23:00,473 INFO L158 Benchmark]: TraceAbstraction took 6141.34ms. Allocated memory was 165.7MB in the beginning and 209.7MB in the end (delta: 44.0MB). Free memory was 97.6MB in the beginning and 76.5MB in the end (delta: 21.1MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. [2022-11-23 15:23:00,474 INFO L158 Benchmark]: Witness Printer took 3.74ms. Allocated memory is still 209.7MB. Free memory was 76.5MB in the beginning and 75.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:23:00,475 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 165.7MB. Free memory was 135.3MB in the beginning and 135.1MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.09ms. Allocated memory is still 165.7MB. Free memory was 138.5MB in the beginning and 118.6MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.77ms. Allocated memory is still 165.7MB. Free memory was 118.6MB in the beginning and 116.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.99ms. Allocated memory is still 165.7MB. Free memory was 116.5MB in the beginning and 115.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 579.95ms. Allocated memory is still 165.7MB. Free memory was 115.0MB in the beginning and 98.3MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6141.34ms. Allocated memory was 165.7MB in the beginning and 209.7MB in the end (delta: 44.0MB). Free memory was 97.6MB in the beginning and 76.5MB in the end (delta: 21.1MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. * Witness Printer took 3.74ms. Allocated memory is still 209.7MB. Free memory was 76.5MB in the beginning and 75.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 155 PlacesBefore, 74 PlacesAfterwards, 156 TransitionsBefore, 74 TransitionsAfterwards, 8036 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 99 TotalNumberOfCompositions, 28907 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15928, independent: 15346, independent conditional: 0, independent unconditional: 15346, dependent: 582, dependent conditional: 0, dependent unconditional: 582, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5694, independent: 5582, independent conditional: 0, independent unconditional: 5582, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5694, independent: 5532, independent conditional: 0, independent unconditional: 5532, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 162, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 193, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 154, dependent conditional: 0, dependent unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15928, independent: 9764, independent conditional: 0, independent unconditional: 9764, dependent: 470, dependent conditional: 0, dependent unconditional: 470, unknown: 5694, unknown conditional: 0, unknown unconditional: 5694] , Statistics on independence cache: Total cache size (in pairs): 1393, Positive cache size: 1324, Positive conditional cache size: 0, Positive unconditional cache size: 1324, Negative cache size: 69, Negative conditional cache size: 0, Negative unconditional cache size: 69, 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: 690]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int flag1 = 0, flag2 = 0; [L685] 0 int turn; [L686] 0 int x; [L706] 0 pthread_t t1, t2; [L707] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [#in~_={0:0}, flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=-2, t1={3:0}, t2={5:0}, turn=0, x=0] [L688] 1 flag1 = 1 VAL [#in~_={0:0}, _={0:0}, flag1=1, flag1 = 1=51, flag2=0, turn=0, x=0] [L689] 1 turn = 1 VAL [#in~_={0:0}, _={0:0}, flag1=1, flag2=0, turn=1, x=0] [L690] 1 flag2==1 VAL [#in~_={0:0}, _={0:0}, flag1=1, flag2=0, turn=1, x=0] [L708] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [#in~_={0:0}, #in~_={0:0}, _={0:0}, flag1=1, flag2=0, pthread_create(&t2, 0, thr2, 0)=-1, t1={3:0}, t2={5:0}, turn=1, x=0] [L697] 2 flag2 = 1 VAL [#in~_={0:0}, #in~_={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=49, turn=1, x=0] [L690] 1 flag2==1 VAL [#in~_={0:0}, #in~_={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=49, turn=1, x=0] Now there is a data race on ~flag2~0 between C: flag2 = 1 [697] and C: flag2==1 [690] - UnprovableResult [Line: 697]: 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: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: 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: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: 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: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: 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: 710]: 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 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: 707]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 243 locations, 32 error locations. Started 1 CEGAR loops. OverallTime: 5.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 278 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 278 mSDsluCounter, 461 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 165 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 690 IncrementalHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 296 mSDtfsCounter, 690 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2493occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 3498 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-23 15:23:00,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32e788fc-9117-4374-a6fc-903acf353a00/bin/utaipan-Q6hlc19bkW/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