./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/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_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/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_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/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 23bd321b64eb98f17ff91aefc669d9f5b78966b876ea50803bd27f8c9b624679 --- 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 02:32:50,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:32:50,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:32:50,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:32:50,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:32:50,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:32:50,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:32:50,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:32:50,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:32:50,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:32:50,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:32:50,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:32:50,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:32:50,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:32:50,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:32:50,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:32:50,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:32:50,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:32:50,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:32:50,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:32:50,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:32:50,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:32:50,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:32:50,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:32:50,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:32:50,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:32:50,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:32:50,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:32:50,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:32:50,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:32:50,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:32:50,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:32:50,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:32:50,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:32:50,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:32:50,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:32:50,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:32:50,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:32:50,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:32:50,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:32:50,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:32:50,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 02:32:50,449 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:32:50,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:32:50,450 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:32:50,450 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:32:50,451 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:32:50,451 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:32:50,451 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:32:50,452 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:32:50,452 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:32:50,452 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:32:50,452 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:32:50,452 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:32:50,452 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:32:50,453 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:32:50,453 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:32:50,453 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:32:50,453 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:32:50,453 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:32:50,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:32:50,454 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:32:50,454 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:32:50,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:32:50,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:32:50,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:32:50,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:32:50,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:32:50,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:32:50,456 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 02:32:50,456 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:32:50,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:32:50,456 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:32:50,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:32:50,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:32:50,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:32:50,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:32:50,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:32:50,457 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:32:50,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:32:50,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:32:50,458 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:32:50,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:32:50,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:32:50,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:32:50,459 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_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23bd321b64eb98f17ff91aefc669d9f5b78966b876ea50803bd27f8c9b624679 [2022-11-03 02:32:50,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:32:50,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:32:50,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:32:50,756 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:32:50,756 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:32:50,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2022-11-03 02:32:50,836 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/bin/utaipan-7li7fVZpFI/data/84d07ccc8/ffffbedd788246ecbef041589913f595/FLAG6a85d4145 [2022-11-03 02:32:51,422 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:32:51,422 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2022-11-03 02:32:51,431 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/bin/utaipan-7li7fVZpFI/data/84d07ccc8/ffffbedd788246ecbef041589913f595/FLAG6a85d4145 [2022-11-03 02:32:51,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/bin/utaipan-7li7fVZpFI/data/84d07ccc8/ffffbedd788246ecbef041589913f595 [2022-11-03 02:32:51,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:32:51,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:32:51,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:32:51,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:32:51,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:32:51,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:32:51" (1/1) ... [2022-11-03 02:32:51,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bda0cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:51, skipping insertion in model container [2022-11-03 02:32:51,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:32:51" (1/1) ... [2022-11-03 02:32:51,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:32:51,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:32:52,077 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_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/sv-benchmarks/c/weaver/array-eq-trans.wvr.c[2737,2750] [2022-11-03 02:32:52,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:32:52,110 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:32:52,183 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_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/sv-benchmarks/c/weaver/array-eq-trans.wvr.c[2737,2750] [2022-11-03 02:32:52,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:32:52,208 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:32:52,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:52 WrapperNode [2022-11-03 02:32:52,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:32:52,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:32:52,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:32:52,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:32:52,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:52" (1/1) ... [2022-11-03 02:32:52,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:52" (1/1) ... [2022-11-03 02:32:52,282 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 348 [2022-11-03 02:32:52,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:32:52,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:32:52,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:32:52,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:32:52,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:52" (1/1) ... [2022-11-03 02:32:52,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:52" (1/1) ... [2022-11-03 02:32:52,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:52" (1/1) ... [2022-11-03 02:32:52,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:52" (1/1) ... [2022-11-03 02:32:52,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:52" (1/1) ... [2022-11-03 02:32:52,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:52" (1/1) ... [2022-11-03 02:32:52,332 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:52" (1/1) ... [2022-11-03 02:32:52,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:52" (1/1) ... [2022-11-03 02:32:52,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:32:52,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:32:52,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:32:52,341 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:32:52,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:52" (1/1) ... [2022-11-03 02:32:52,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:32:52,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:32:52,399 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:32:52,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdb49b3d-3cf4-4c2f-b282-aaa1d8e8ec4b/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:32:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:32:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-03 02:32:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-03 02:32:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-03 02:32:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-03 02:32:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-03 02:32:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-03 02:32:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:32:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:32:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:32:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:32:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:32:52,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:32:52,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:32:52,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:32:52,445 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 02:32:52,577 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:32:52,579 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:32:53,629 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:32:53,642 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:32:53,642 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-03 02:32:53,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:32:53 BoogieIcfgContainer [2022-11-03 02:32:53,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:32:53,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:32:53,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:32:53,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:32:53,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:32:51" (1/3) ... [2022-11-03 02:32:53,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e75fe45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:32:53, skipping insertion in model container [2022-11-03 02:32:53,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:32:52" (2/3) ... [2022-11-03 02:32:53,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e75fe45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:32:53, skipping insertion in model container [2022-11-03 02:32:53,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:32:53" (3/3) ... [2022-11-03 02:32:53,656 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c [2022-11-03 02:32:53,665 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:32:53,676 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:32:53,676 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2022-11-03 02:32:53,676 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:32:53,805 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-03 02:32:53,868 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:32:53,887 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 621 places, 644 transitions, 1312 flow [2022-11-03 02:32:53,892 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 621 places, 644 transitions, 1312 flow [2022-11-03 02:32:53,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 621 places, 644 transitions, 1312 flow [2022-11-03 02:32:54,254 INFO L130 PetriNetUnfolder]: 33/641 cut-off events. [2022-11-03 02:32:54,254 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-03 02:32:54,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 641 events. 33/641 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1323 event pairs, 0 based on Foata normal form. 0/527 useless extension candidates. Maximal degree in co-relation 364. Up to 3 conditions per place. [2022-11-03 02:32:54,284 INFO L118 LiptonReduction]: Number of co-enabled transitions 35640 [2022-11-03 02:33:34,308 WARN L234 SmtUtils]: Spent 6.18s on a formula simplification that was a NOOP. DAG size: 145 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:33:40,385 WARN L234 SmtUtils]: Spent 6.07s on a formula simplification that was a NOOP. DAG size: 145 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:33:58,043 WARN L234 SmtUtils]: Spent 17.66s on a formula simplification. DAG size of input: 165 DAG size of output: 163 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:34:06,481 WARN L234 SmtUtils]: Spent 8.44s on a formula simplification that was a NOOP. DAG size: 162 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-03 02:34:07,256 INFO L133 LiptonReduction]: Checked pairs total: 221954 [2022-11-03 02:34:07,256 INFO L135 LiptonReduction]: Total number of compositions: 915 [2022-11-03 02:34:07,266 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 168 places, 173 transitions, 370 flow [2022-11-03 02:34:13,853 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 166407 states, 161790 states have (on average 4.247611100809691) internal successors, (687221), 166406 states have internal predecessors, (687221), 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 02:34:13,878 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:34:13,885 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;@2bee2ad8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:34:13,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 120 error locations. [2022-11-03 02:34:14,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 166407 states, 161790 states have (on average 4.247611100809691) internal successors, (687221), 166406 states have internal predecessors, (687221), 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 02:34:14,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-03 02:34:14,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:14,232 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-03 02:34:14,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-03 02:34:14,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:14,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2432, now seen corresponding path program 1 times [2022-11-03 02:34:14,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:14,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399965464] [2022-11-03 02:34:14,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:14,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:14,498 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 02:34:14,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:14,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399965464] [2022-11-03 02:34:14,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399965464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:14,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:14,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-03 02:34:14,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279663687] [2022-11-03 02:34:14,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:14,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:34:14,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:14,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:34:14,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:34:15,559 INFO L87 Difference]: Start difference. First operand has 166407 states, 161790 states have (on average 4.247611100809691) internal successors, (687221), 166406 states have internal predecessors, (687221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:34:17,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:17,140 INFO L93 Difference]: Finished difference Result 46105 states and 189743 transitions. [2022-11-03 02:34:17,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:34:17,143 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-03 02:34:17,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:17,897 INFO L225 Difference]: With dead ends: 46105 [2022-11-03 02:34:17,897 INFO L226 Difference]: Without dead ends: 46102 [2022-11-03 02:34:17,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:34:17,903 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:17,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:34:18,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46102 states. [2022-11-03 02:34:19,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46102 to 46102. [2022-11-03 02:34:20,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46102 states, 46037 states have (on average 4.121380628624801) internal successors, (189736), 46101 states have internal predecessors, (189736), 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 02:34:20,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46102 states to 46102 states and 189736 transitions. [2022-11-03 02:34:20,941 INFO L78 Accepts]: Start accepts. Automaton has 46102 states and 189736 transitions. Word has length 1 [2022-11-03 02:34:20,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:20,941 INFO L495 AbstractCegarLoop]: Abstraction has 46102 states and 189736 transitions. [2022-11-03 02:34:20,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:34:20,943 INFO L276 IsEmpty]: Start isEmpty. Operand 46102 states and 189736 transitions. [2022-11-03 02:34:20,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 02:34:20,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:20,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:20,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:34:20,950 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-03 02:34:20,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:20,954 INFO L85 PathProgramCache]: Analyzing trace with hash 542417077, now seen corresponding path program 1 times [2022-11-03 02:34:20,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:20,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621193031] [2022-11-03 02:34:20,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:20,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:21,234 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 02:34:21,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:21,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621193031] [2022-11-03 02:34:21,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621193031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:21,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:21,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:34:21,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577016327] [2022-11-03 02:34:21,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:21,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:34:21,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:21,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:34:21,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:34:21,244 INFO L87 Difference]: Start difference. First operand 46102 states and 189736 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) 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) [2022-11-03 02:34:22,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:22,127 INFO L93 Difference]: Finished difference Result 48403 states and 199083 transitions. [2022-11-03 02:34:22,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:34:22,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) 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 [2022-11-03 02:34:22,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:22,425 INFO L225 Difference]: With dead ends: 48403 [2022-11-03 02:34:22,426 INFO L226 Difference]: Without dead ends: 48403 [2022-11-03 02:34:22,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:34:22,428 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 50 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:22,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 86 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:34:23,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48403 states. [2022-11-03 02:34:24,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48403 to 48403. [2022-11-03 02:34:24,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48403 states, 48338 states have (on average 4.11856096652737) internal successors, (199083), 48402 states have internal predecessors, (199083), 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 02:34:24,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48403 states to 48403 states and 199083 transitions. [2022-11-03 02:34:24,922 INFO L78 Accepts]: Start accepts. Automaton has 48403 states and 199083 transitions. Word has length 13 [2022-11-03 02:34:24,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:24,923 INFO L495 AbstractCegarLoop]: Abstraction has 48403 states and 199083 transitions. [2022-11-03 02:34:24,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) 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) [2022-11-03 02:34:24,924 INFO L276 IsEmpty]: Start isEmpty. Operand 48403 states and 199083 transitions. [2022-11-03 02:34:24,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 02:34:24,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:24,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:24,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:34:24,935 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-03 02:34:24,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:24,937 INFO L85 PathProgramCache]: Analyzing trace with hash 184387337, now seen corresponding path program 1 times [2022-11-03 02:34:24,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:24,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739392315] [2022-11-03 02:34:24,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:24,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:25,534 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 02:34:25,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:25,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739392315] [2022-11-03 02:34:25,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739392315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:25,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:25,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:34:25,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834997415] [2022-11-03 02:34:25,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:25,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:34:25,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:25,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:34:25,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:34:25,538 INFO L87 Difference]: Start difference. First operand 48403 states and 199083 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 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) [2022-11-03 02:34:26,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:26,994 INFO L93 Difference]: Finished difference Result 41943 states and 171157 transitions. [2022-11-03 02:34:26,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:34:26,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 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 [2022-11-03 02:34:26,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:27,243 INFO L225 Difference]: With dead ends: 41943 [2022-11-03 02:34:27,243 INFO L226 Difference]: Without dead ends: 41943 [2022-11-03 02:34:27,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:34:27,245 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 98 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:27,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 22 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 02:34:27,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41943 states. [2022-11-03 02:34:28,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41943 to 41943. [2022-11-03 02:34:28,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41943 states, 41905 states have (on average 4.084405202243169) internal successors, (171157), 41942 states have internal predecessors, (171157), 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 02:34:28,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41943 states to 41943 states and 171157 transitions. [2022-11-03 02:34:28,899 INFO L78 Accepts]: Start accepts. Automaton has 41943 states and 171157 transitions. Word has length 13 [2022-11-03 02:34:28,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:28,900 INFO L495 AbstractCegarLoop]: Abstraction has 41943 states and 171157 transitions. [2022-11-03 02:34:28,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 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) [2022-11-03 02:34:28,901 INFO L276 IsEmpty]: Start isEmpty. Operand 41943 states and 171157 transitions. [2022-11-03 02:34:28,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:34:28,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:28,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:28,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:34:28,903 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-03 02:34:28,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:28,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1170896000, now seen corresponding path program 1 times [2022-11-03 02:34:28,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:28,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796284342] [2022-11-03 02:34:28,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:28,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:29,256 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 02:34:29,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:29,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796284342] [2022-11-03 02:34:29,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796284342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:29,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:29,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:34:29,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269106617] [2022-11-03 02:34:29,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:29,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:34:29,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:29,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:34:29,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:34:29,265 INFO L87 Difference]: Start difference. First operand 41943 states and 171157 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:34:30,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:30,772 INFO L93 Difference]: Finished difference Result 44321 states and 176712 transitions. [2022-11-03 02:34:30,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:34:30,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-03 02:34:30,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:31,034 INFO L225 Difference]: With dead ends: 44321 [2022-11-03 02:34:31,034 INFO L226 Difference]: Without dead ends: 44321 [2022-11-03 02:34:31,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:34:31,035 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 89 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:31,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 27 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 02:34:31,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44321 states. [2022-11-03 02:34:32,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44321 to 39965. [2022-11-03 02:34:32,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39965 states, 39936 states have (on average 4.085887419871795) internal successors, (163174), 39964 states have internal predecessors, (163174), 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 02:34:32,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39965 states to 39965 states and 163174 transitions. [2022-11-03 02:34:32,750 INFO L78 Accepts]: Start accepts. Automaton has 39965 states and 163174 transitions. Word has length 14 [2022-11-03 02:34:32,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:32,750 INFO L495 AbstractCegarLoop]: Abstraction has 39965 states and 163174 transitions. [2022-11-03 02:34:32,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:34:32,750 INFO L276 IsEmpty]: Start isEmpty. Operand 39965 states and 163174 transitions. [2022-11-03 02:34:32,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:34:32,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:32,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:32,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:34:32,754 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-03 02:34:32,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:32,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1466444442, now seen corresponding path program 1 times [2022-11-03 02:34:32,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:32,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196453892] [2022-11-03 02:34:32,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:32,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:32,794 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 02:34:32,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:32,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196453892] [2022-11-03 02:34:32,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196453892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:32,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:32,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:34:32,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176876585] [2022-11-03 02:34:32,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:32,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:34:32,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:32,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:34:32,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:34:32,797 INFO L87 Difference]: Start difference. First operand 39965 states and 163174 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:34:33,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:33,918 INFO L93 Difference]: Finished difference Result 42060 states and 171524 transitions. [2022-11-03 02:34:33,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:34:33,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 02:34:33,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:34,170 INFO L225 Difference]: With dead ends: 42060 [2022-11-03 02:34:34,170 INFO L226 Difference]: Without dead ends: 42060 [2022-11-03 02:34:34,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:34:34,172 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 53 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:34,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 90 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:34:34,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42060 states. [2022-11-03 02:34:35,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42060 to 42060. [2022-11-03 02:34:35,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42060 states, 42031 states have (on average 4.080892674454569) internal successors, (171524), 42059 states have internal predecessors, (171524), 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 02:34:35,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42060 states to 42060 states and 171524 transitions. [2022-11-03 02:34:35,833 INFO L78 Accepts]: Start accepts. Automaton has 42060 states and 171524 transitions. Word has length 15 [2022-11-03 02:34:35,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:35,834 INFO L495 AbstractCegarLoop]: Abstraction has 42060 states and 171524 transitions. [2022-11-03 02:34:35,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:34:35,834 INFO L276 IsEmpty]: Start isEmpty. Operand 42060 states and 171524 transitions. [2022-11-03 02:34:35,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:34:35,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:35,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:35,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:34:35,838 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-03 02:34:35,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:35,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1268144247, now seen corresponding path program 1 times [2022-11-03 02:34:35,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:35,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516414433] [2022-11-03 02:34:35,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:35,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:35,887 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 02:34:35,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:35,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516414433] [2022-11-03 02:34:35,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516414433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:35,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:35,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:34:35,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952249340] [2022-11-03 02:34:35,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:35,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:34:35,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:35,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:34:35,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:34:35,890 INFO L87 Difference]: Start difference. First operand 42060 states and 171524 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 02:34:36,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:36,492 INFO L93 Difference]: Finished difference Result 44487 states and 181178 transitions. [2022-11-03 02:34:36,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:34:36,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-03 02:34:36,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:36,749 INFO L225 Difference]: With dead ends: 44487 [2022-11-03 02:34:36,749 INFO L226 Difference]: Without dead ends: 44485 [2022-11-03 02:34:36,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:34:36,751 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 60 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:36,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 96 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:34:37,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44485 states. [2022-11-03 02:34:38,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44485 to 44485. [2022-11-03 02:34:38,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44485 states, 44456 states have (on average 4.075355407594025) internal successors, (181174), 44484 states have internal predecessors, (181174), 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 02:34:39,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44485 states to 44485 states and 181174 transitions. [2022-11-03 02:34:39,197 INFO L78 Accepts]: Start accepts. Automaton has 44485 states and 181174 transitions. Word has length 16 [2022-11-03 02:34:39,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:39,197 INFO L495 AbstractCegarLoop]: Abstraction has 44485 states and 181174 transitions. [2022-11-03 02:34:39,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 02:34:39,197 INFO L276 IsEmpty]: Start isEmpty. Operand 44485 states and 181174 transitions. [2022-11-03 02:34:39,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:34:39,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:39,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:39,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:34:39,202 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-03 02:34:39,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:39,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1622921474, now seen corresponding path program 1 times [2022-11-03 02:34:39,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:39,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183144122] [2022-11-03 02:34:39,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:39,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:39,384 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 02:34:39,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:39,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183144122] [2022-11-03 02:34:39,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183144122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:39,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:39,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:34:39,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449968035] [2022-11-03 02:34:39,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:39,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:34:39,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:39,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:34:39,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:34:39,387 INFO L87 Difference]: Start difference. First operand 44485 states and 181174 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 02:34:40,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:40,433 INFO L93 Difference]: Finished difference Result 104764 states and 420244 transitions. [2022-11-03 02:34:40,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:34:40,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-03 02:34:40,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:41,712 INFO L225 Difference]: With dead ends: 104764 [2022-11-03 02:34:41,712 INFO L226 Difference]: Without dead ends: 104764 [2022-11-03 02:34:41,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:34:41,713 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 284 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:41,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 126 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:34:41,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104764 states. [2022-11-03 02:34:43,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104764 to 48958. [2022-11-03 02:34:43,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48958 states, 48929 states have (on average 4.0650534447873445) internal successors, (198899), 48957 states have internal predecessors, (198899), 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 02:34:44,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48958 states to 48958 states and 198899 transitions. [2022-11-03 02:34:44,010 INFO L78 Accepts]: Start accepts. Automaton has 48958 states and 198899 transitions. Word has length 16 [2022-11-03 02:34:44,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:44,011 INFO L495 AbstractCegarLoop]: Abstraction has 48958 states and 198899 transitions. [2022-11-03 02:34:44,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 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 02:34:44,011 INFO L276 IsEmpty]: Start isEmpty. Operand 48958 states and 198899 transitions. [2022-11-03 02:34:44,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:34:44,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:44,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:44,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:34:44,018 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-03 02:34:44,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:44,019 INFO L85 PathProgramCache]: Analyzing trace with hash -33188634, now seen corresponding path program 1 times [2022-11-03 02:34:44,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:44,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888651869] [2022-11-03 02:34:44,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:44,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:44,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:34:44,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:44,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888651869] [2022-11-03 02:34:44,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888651869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:44,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:44,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:34:44,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211156722] [2022-11-03 02:34:44,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:44,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:34:44,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:44,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:34:44,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:34:44,236 INFO L87 Difference]: Start difference. First operand 48958 states and 198899 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:34:46,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:46,366 INFO L93 Difference]: Finished difference Result 111330 states and 450965 transitions. [2022-11-03 02:34:46,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:34:46,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-03 02:34:46,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:46,922 INFO L225 Difference]: With dead ends: 111330 [2022-11-03 02:34:46,922 INFO L226 Difference]: Without dead ends: 111330 [2022-11-03 02:34:46,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:34:46,923 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 391 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:46,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 196 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:34:47,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111330 states. [2022-11-03 02:34:49,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111330 to 55646. [2022-11-03 02:34:50,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55646 states, 55617 states have (on average 4.0933167916284585) internal successors, (227658), 55645 states have internal predecessors, (227658), 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 02:34:50,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55646 states to 55646 states and 227658 transitions. [2022-11-03 02:34:50,244 INFO L78 Accepts]: Start accepts. Automaton has 55646 states and 227658 transitions. Word has length 17 [2022-11-03 02:34:50,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:50,245 INFO L495 AbstractCegarLoop]: Abstraction has 55646 states and 227658 transitions. [2022-11-03 02:34:50,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:34:50,245 INFO L276 IsEmpty]: Start isEmpty. Operand 55646 states and 227658 transitions. [2022-11-03 02:34:50,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:34:50,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:50,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:50,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:34:50,251 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-03 02:34:50,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:50,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1231109733, now seen corresponding path program 1 times [2022-11-03 02:34:50,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:50,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26077417] [2022-11-03 02:34:50,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:50,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:50,385 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 02:34:50,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:50,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26077417] [2022-11-03 02:34:50,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26077417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:50,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:34:50,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:34:50,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902753481] [2022-11-03 02:34:50,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:50,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:34:50,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:50,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:34:50,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:34:50,388 INFO L87 Difference]: Start difference. First operand 55646 states and 227658 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:34:51,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:51,721 INFO L93 Difference]: Finished difference Result 68843 states and 276445 transitions. [2022-11-03 02:34:51,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:34:51,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-03 02:34:51,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:52,250 INFO L225 Difference]: With dead ends: 68843 [2022-11-03 02:34:52,250 INFO L226 Difference]: Without dead ends: 68839 [2022-11-03 02:34:52,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:34:52,251 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 64 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:52,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 90 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:34:52,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68839 states.