./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:06:07,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:06:07,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:06:07,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:06:07,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:06:07,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:06:07,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:06:07,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:06:07,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:06:07,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:06:07,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:06:07,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:06:07,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:06:07,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:06:07,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:06:07,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:06:07,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:06:07,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:06:07,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:06:07,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:06:07,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:06:07,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:06:07,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:06:07,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:06:07,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:06:07,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:06:07,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:06:07,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:06:07,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:06:07,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:06:07,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:06:07,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:06:07,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:06:07,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:06:07,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:06:07,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:06:07,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:06:07,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:06:07,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:06:07,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:06:07,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:06:07,442 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 02:06:07,488 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:06:07,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:06:07,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:06:07,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:06:07,490 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:06:07,490 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:06:07,490 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:06:07,491 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:06:07,491 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:06:07,491 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:06:07,492 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:06:07,492 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:06:07,493 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:06:07,493 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:06:07,493 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:06:07,493 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:06:07,493 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:06:07,494 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:06:07,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:06:07,495 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:06:07,495 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:06:07,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:06:07,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:06:07,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:06:07,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:06:07,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:06:07,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:06:07,498 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 02:06:07,498 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:06:07,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:06:07,499 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:06:07,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:06:07,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:06:07,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:06:07,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:06:07,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:06:07,500 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:06:07,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:06:07,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:06:07,501 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:06:07,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:06:07,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:06:07,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:06:07,501 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_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2022-11-03 02:06:07,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:06:07,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:06:07,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:06:07,876 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:06:07,876 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:06:07,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2022-11-03 02:06:07,962 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI/data/041ea7414/b8b9cbdd77954acdbd2f8f8f50e8cb37/FLAGd58d4a9ee [2022-11-03 02:06:08,571 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:06:08,572 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2022-11-03 02:06:08,589 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI/data/041ea7414/b8b9cbdd77954acdbd2f8f8f50e8cb37/FLAGd58d4a9ee [2022-11-03 02:06:08,841 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI/data/041ea7414/b8b9cbdd77954acdbd2f8f8f50e8cb37 [2022-11-03 02:06:08,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:06:08,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:06:08,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:06:08,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:06:08,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:06:08,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:06:08" (1/1) ... [2022-11-03 02:06:08,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd5ae76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:08, skipping insertion in model container [2022-11-03 02:06:08,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:06:08" (1/1) ... [2022-11-03 02:06:08,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:06:08,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:06:09,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2022-11-03 02:06:09,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:06:09,591 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:06:09,607 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2022-11-03 02:06:09,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:06:09,721 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:06:09,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:09 WrapperNode [2022-11-03 02:06:09,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:06:09,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:06:09,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:06:09,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:06:09,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:09" (1/1) ... [2022-11-03 02:06:09,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:09" (1/1) ... [2022-11-03 02:06:09,790 INFO L138 Inliner]: procedures = 271, calls = 45, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 113 [2022-11-03 02:06:09,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:06:09,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:06:09,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:06:09,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:06:09,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:09" (1/1) ... [2022-11-03 02:06:09,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:09" (1/1) ... [2022-11-03 02:06:09,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:09" (1/1) ... [2022-11-03 02:06:09,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:09" (1/1) ... [2022-11-03 02:06:09,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:09" (1/1) ... [2022-11-03 02:06:09,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:09" (1/1) ... [2022-11-03 02:06:09,875 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:09" (1/1) ... [2022-11-03 02:06:09,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:09" (1/1) ... [2022-11-03 02:06:09,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:06:09,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:06:09,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:06:09,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:06:09,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:09" (1/1) ... [2022-11-03 02:06:09,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:06:09,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:06:09,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:06:09,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dae68e8-ca96-425c-9075-2a038151d906/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:06:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-03 02:06:09,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:06:09,992 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2022-11-03 02:06:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2022-11-03 02:06:09,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:06:09,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:06:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 02:06:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:06:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2022-11-03 02:06:09,993 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2022-11-03 02:06:09,994 INFO L130 BoogieDeclarations]: Found specification of procedure process [2022-11-03 02:06:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2022-11-03 02:06:09,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:06:09,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:06:09,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:06:09,996 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:06:10,394 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:06:10,396 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:06:10,724 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:06:10,734 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:06:10,738 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-03 02:06:10,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:06:10 BoogieIcfgContainer [2022-11-03 02:06:10,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:06:10,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:06:10,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:06:10,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:06:10,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:06:08" (1/3) ... [2022-11-03 02:06:10,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717031f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:06:10, skipping insertion in model container [2022-11-03 02:06:10,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:09" (2/3) ... [2022-11-03 02:06:10,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717031f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:06:10, skipping insertion in model container [2022-11-03 02:06:10,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:06:10" (3/3) ... [2022-11-03 02:06:10,756 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2022-11-03 02:06:10,766 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:06:10,778 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:06:10,779 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-11-03 02:06:10,780 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:06:10,895 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 02:06:10,951 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:06:10,966 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 212 places, 214 transitions, 443 flow [2022-11-03 02:06:10,971 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 212 places, 214 transitions, 443 flow [2022-11-03 02:06:10,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 212 places, 214 transitions, 443 flow [2022-11-03 02:06:11,132 INFO L130 PetriNetUnfolder]: 12/211 cut-off events. [2022-11-03 02:06:11,132 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 02:06:11,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 211 events. 12/211 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 485 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 179. Up to 2 conditions per place. [2022-11-03 02:06:11,174 INFO L118 LiptonReduction]: Number of co-enabled transitions 20632 [2022-11-03 02:06:17,434 INFO L133 LiptonReduction]: Checked pairs total: 153786 [2022-11-03 02:06:17,435 INFO L135 LiptonReduction]: Total number of compositions: 166 [2022-11-03 02:06:17,447 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 90 transitions, 195 flow [2022-11-03 02:06:21,261 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 82105 states, 81836 states have (on average 4.178332274304707) internal successors, (341938), 82104 states have internal predecessors, (341938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:21,308 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:06:21,333 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;@7dd5ad63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:06:21,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-03 02:06:21,445 INFO L276 IsEmpty]: Start isEmpty. Operand has 82105 states, 81836 states have (on average 4.178332274304707) internal successors, (341938), 82104 states have internal predecessors, (341938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:21,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 02:06:21,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:21,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 02:06:21,454 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting processErr5ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-03 02:06:21,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:21,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1522054219, now seen corresponding path program 1 times [2022-11-03 02:06:21,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:21,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101916964] [2022-11-03 02:06:21,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:21,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:21,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:06:21,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:21,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101916964] [2022-11-03 02:06:21,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101916964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:21,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:21,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:06:21,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135282546] [2022-11-03 02:06:21,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:21,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:06:21,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:21,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:06:21,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:06:22,154 INFO L87 Difference]: Start difference. First operand has 82105 states, 81836 states have (on average 4.178332274304707) internal successors, (341938), 82104 states have internal predecessors, (341938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:25,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:25,074 INFO L93 Difference]: Finished difference Result 72074 states and 295154 transitions. [2022-11-03 02:06:25,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:06:25,092 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-03 02:06:25,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:26,189 INFO L225 Difference]: With dead ends: 72074 [2022-11-03 02:06:26,189 INFO L226 Difference]: Without dead ends: 72074 [2022-11-03 02:06:26,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:06:26,196 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:26,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:06:26,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72074 states. [2022-11-03 02:06:29,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72074 to 72074. [2022-11-03 02:06:29,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72074 states, 71930 states have (on average 4.103350479632977) internal successors, (295154), 72073 states have internal predecessors, (295154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:30,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72074 states to 72074 states and 295154 transitions. [2022-11-03 02:06:30,863 INFO L78 Accepts]: Start accepts. Automaton has 72074 states and 295154 transitions. Word has length 6 [2022-11-03 02:06:30,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:30,864 INFO L495 AbstractCegarLoop]: Abstraction has 72074 states and 295154 transitions. [2022-11-03 02:06:30,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:30,864 INFO L276 IsEmpty]: Start isEmpty. Operand 72074 states and 295154 transitions. [2022-11-03 02:06:30,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 02:06:30,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:30,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:30,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:06:30,866 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting generateErr0ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-03 02:06:30,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:30,867 INFO L85 PathProgramCache]: Analyzing trace with hash -75424320, now seen corresponding path program 1 times [2022-11-03 02:06:30,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:30,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670666834] [2022-11-03 02:06:30,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:30,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:30,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:06:30,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:30,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670666834] [2022-11-03 02:06:30,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670666834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:30,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:30,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:06:30,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192869637] [2022-11-03 02:06:30,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:30,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:06:30,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:30,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:06:30,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:30,974 INFO L87 Difference]: Start difference. First operand 72074 states and 295154 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) [2022-11-03 02:06:32,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:32,666 INFO L93 Difference]: Finished difference Result 78048 states and 319632 transitions. [2022-11-03 02:06:32,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:06:32,666 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 [2022-11-03 02:06:32,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:33,583 INFO L225 Difference]: With dead ends: 78048 [2022-11-03 02:06:33,583 INFO L226 Difference]: Without dead ends: 78048 [2022-11-03 02:06:33,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:33,585 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 62 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:33,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 94 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:06:33,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78048 states. [2022-11-03 02:06:36,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78048 to 78048. [2022-11-03 02:06:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78048 states, 77904 states have (on average 4.102895871842267) internal successors, (319632), 78047 states have internal predecessors, (319632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:37,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78048 states to 78048 states and 319632 transitions. [2022-11-03 02:06:37,610 INFO L78 Accepts]: Start accepts. Automaton has 78048 states and 319632 transitions. Word has length 7 [2022-11-03 02:06:37,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:37,610 INFO L495 AbstractCegarLoop]: Abstraction has 78048 states and 319632 transitions. [2022-11-03 02:06:37,610 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) [2022-11-03 02:06:37,611 INFO L276 IsEmpty]: Start isEmpty. Operand 78048 states and 319632 transitions. [2022-11-03 02:06:37,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 02:06:37,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:37,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:37,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:06:37,630 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting processErr0ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-03 02:06:37,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:37,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1889844298, now seen corresponding path program 1 times [2022-11-03 02:06:37,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:37,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445221209] [2022-11-03 02:06:37,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:37,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:37,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:06:37,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:37,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445221209] [2022-11-03 02:06:37,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445221209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:37,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:37,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:06:37,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503563400] [2022-11-03 02:06:37,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:37,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:06:37,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:37,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:06:37,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:37,814 INFO L87 Difference]: Start difference. First operand 78048 states and 319632 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) [2022-11-03 02:06:39,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:39,475 INFO L93 Difference]: Finished difference Result 137564 states and 553398 transitions. [2022-11-03 02:06:39,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:06:39,475 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 [2022-11-03 02:06:39,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:40,364 INFO L225 Difference]: With dead ends: 137564 [2022-11-03 02:06:40,364 INFO L226 Difference]: Without dead ends: 137564 [2022-11-03 02:06:40,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:40,366 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 65 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:40,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 73 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:06:40,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137564 states. [2022-11-03 02:06:43,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137564 to 87600. [2022-11-03 02:06:44,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87600 states, 87464 states have (on average 4.069331382054331) internal successors, (355920), 87599 states have internal predecessors, (355920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:45,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87600 states to 87600 states and 355920 transitions. [2022-11-03 02:06:45,240 INFO L78 Accepts]: Start accepts. Automaton has 87600 states and 355920 transitions. Word has length 8 [2022-11-03 02:06:45,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:45,241 INFO L495 AbstractCegarLoop]: Abstraction has 87600 states and 355920 transitions. [2022-11-03 02:06:45,241 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) [2022-11-03 02:06:45,241 INFO L276 IsEmpty]: Start isEmpty. Operand 87600 states and 355920 transitions. [2022-11-03 02:06:45,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:06:45,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:45,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:45,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:06:45,243 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting generateErr1ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-03 02:06:45,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:45,244 INFO L85 PathProgramCache]: Analyzing trace with hash -695387582, now seen corresponding path program 1 times [2022-11-03 02:06:45,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:45,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78957637] [2022-11-03 02:06:45,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:45,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:45,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:06:45,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:45,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78957637] [2022-11-03 02:06:45,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78957637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:45,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:45,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:06:45,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810511882] [2022-11-03 02:06:45,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:45,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:06:45,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:45,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:06:45,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:45,333 INFO L87 Difference]: Start difference. First operand 87600 states and 355920 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) [2022-11-03 02:06:47,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:47,065 INFO L93 Difference]: Finished difference Result 92222 states and 373460 transitions. [2022-11-03 02:06:47,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:06:47,066 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 [2022-11-03 02:06:47,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:47,599 INFO L225 Difference]: With dead ends: 92222 [2022-11-03 02:06:47,599 INFO L226 Difference]: Without dead ends: 92222 [2022-11-03 02:06:47,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:47,600 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 62 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:47,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 94 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:06:47,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92222 states. [2022-11-03 02:06:51,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92222 to 92222. [2022-11-03 02:06:51,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92222 states, 92094 states have (on average 4.055204465003149) internal successors, (373460), 92221 states have internal predecessors, (373460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:06:51,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92222 states to 92222 states and 373460 transitions. [2022-11-03 02:06:51,720 INFO L78 Accepts]: Start accepts. Automaton has 92222 states and 373460 transitions. Word has length 10 [2022-11-03 02:06:51,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:51,721 INFO L495 AbstractCegarLoop]: Abstraction has 92222 states and 373460 transitions. [2022-11-03 02:06:51,721 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) [2022-11-03 02:06:51,721 INFO L276 IsEmpty]: Start isEmpty. Operand 92222 states and 373460 transitions. [2022-11-03 02:06:51,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:06:51,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:51,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:51,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:06:51,725 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting disposeErr0ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-03 02:06:51,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:51,728 INFO L85 PathProgramCache]: Analyzing trace with hash -639016018, now seen corresponding path program 1 times [2022-11-03 02:06:51,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:51,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767066633] [2022-11-03 02:06:51,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:51,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:51,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:06:51,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:51,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767066633] [2022-11-03 02:06:51,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767066633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:51,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:51,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:06:51,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31464542] [2022-11-03 02:06:51,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:51,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:06:51,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:51,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:06:51,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:51,819 INFO L87 Difference]: Start difference. First operand 92222 states and 373460 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) [2022-11-03 02:06:54,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:54,111 INFO L93 Difference]: Finished difference Result 170351 states and 675395 transitions. [2022-11-03 02:06:54,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:06:54,112 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 [2022-11-03 02:06:54,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:56,386 INFO L225 Difference]: With dead ends: 170351 [2022-11-03 02:06:56,386 INFO L226 Difference]: Without dead ends: 170351 [2022-11-03 02:06:56,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:56,387 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 70 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:56,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 103 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:06:56,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170351 states. [2022-11-03 02:07:01,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170351 to 110046. [2022-11-03 02:07:01,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110046 states, 109934 states have (on average 4.0211217639674715) internal successors, (442058), 110045 states have internal predecessors, (442058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:07:01,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110046 states to 110046 states and 442058 transitions. [2022-11-03 02:07:01,680 INFO L78 Accepts]: Start accepts. Automaton has 110046 states and 442058 transitions. Word has length 10 [2022-11-03 02:07:01,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:07:01,681 INFO L495 AbstractCegarLoop]: Abstraction has 110046 states and 442058 transitions. [2022-11-03 02:07:01,681 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) [2022-11-03 02:07:01,681 INFO L276 IsEmpty]: Start isEmpty. Operand 110046 states and 442058 transitions. [2022-11-03 02:07:01,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:07:01,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:07:01,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:07:01,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:07:01,685 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting generateErr0ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-03 02:07:01,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:07:01,685 INFO L85 PathProgramCache]: Analyzing trace with hash -215185358, now seen corresponding path program 1 times [2022-11-03 02:07:01,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:07:01,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491978683] [2022-11-03 02:07:01,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:01,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:07:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:01,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:07:01,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:07:01,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491978683] [2022-11-03 02:07:01,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491978683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:07:01,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:07:01,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:07:01,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117286923] [2022-11-03 02:07:01,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:07:01,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:07:01,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:07:01,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:07:01,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:07:01,870 INFO L87 Difference]: Start difference. First operand 110046 states and 442058 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)