./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/queue_longer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:46:49,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:46:49,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:46:49,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:46:49,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:46:49,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:46:49,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:46:49,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:46:49,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:46:49,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:46:49,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:46:49,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:46:49,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:46:49,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:46:49,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:46:49,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:46:49,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:46:49,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:46:49,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:46:49,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:46:49,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:46:49,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:46:49,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:46:49,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:46:49,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:46:49,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:46:49,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:46:49,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:46:49,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:46:49,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:46:49,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:46:49,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:46:49,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:46:49,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:46:49,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:46:49,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:46:49,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:46:49,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:46:49,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:46:49,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:46:49,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:46:49,293 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-19 07:46:49,333 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:46:49,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:46:49,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:46:49,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:46:49,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:46:49,341 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:46:49,341 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:46:49,341 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:46:49,341 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:46:49,342 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:46:49,343 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:46:49,343 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:46:49,343 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:46:49,344 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:46:49,344 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:46:49,344 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:46:49,344 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:46:49,345 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:46:49,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:46:49,346 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:46:49,346 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:46:49,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:46:49,346 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:46:49,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:46:49,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:46:49,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:46:49,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:46:49,347 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-19 07:46:49,348 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:46:49,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:46:49,348 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:46:49,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:46:49,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:46:49,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:46:49,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:46:49,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:46:49,350 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:46:49,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:46:49,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:46:49,351 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:46:49,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:46:49,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:46:49,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:46:49,352 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_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 [2022-11-19 07:46:49,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:46:49,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:46:49,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:46:49,676 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:46:49,677 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:46:49,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread/queue_longer.i [2022-11-19 07:46:49,743 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS/data/f02c42c4c/e8e755e2567c47d7843f5bbfcf6295c2/FLAG3adb9557c [2022-11-19 07:46:50,251 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:46:50,252 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/sv-benchmarks/c/pthread/queue_longer.i [2022-11-19 07:46:50,276 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS/data/f02c42c4c/e8e755e2567c47d7843f5bbfcf6295c2/FLAG3adb9557c [2022-11-19 07:46:50,558 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS/data/f02c42c4c/e8e755e2567c47d7843f5bbfcf6295c2 [2022-11-19 07:46:50,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:46:50,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:46:50,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:46:50,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:46:50,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:46:50,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:50" (1/1) ... [2022-11-19 07:46:50,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b13b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:50, skipping insertion in model container [2022-11-19 07:46:50,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:50" (1/1) ... [2022-11-19 07:46:50,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:46:50,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:46:51,172 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/sv-benchmarks/c/pthread/queue_longer.i[43296,43309] [2022-11-19 07:46:51,184 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/sv-benchmarks/c/pthread/queue_longer.i[43503,43516] [2022-11-19 07:46:51,188 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/sv-benchmarks/c/pthread/queue_longer.i[43783,43796] [2022-11-19 07:46:51,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:46:51,210 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:46:51,308 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/sv-benchmarks/c/pthread/queue_longer.i[43296,43309] [2022-11-19 07:46:51,310 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/sv-benchmarks/c/pthread/queue_longer.i[43503,43516] [2022-11-19 07:46:51,314 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/sv-benchmarks/c/pthread/queue_longer.i[43783,43796] [2022-11-19 07:46:51,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:46:51,368 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:46:51,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:51 WrapperNode [2022-11-19 07:46:51,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:46:51,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:46:51,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:46:51,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:46:51,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:51" (1/1) ... [2022-11-19 07:46:51,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:51" (1/1) ... [2022-11-19 07:46:51,463 INFO L138 Inliner]: procedures = 274, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 481 [2022-11-19 07:46:51,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:46:51,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:46:51,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:46:51,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:46:51,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:51" (1/1) ... [2022-11-19 07:46:51,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:51" (1/1) ... [2022-11-19 07:46:51,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:51" (1/1) ... [2022-11-19 07:46:51,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:51" (1/1) ... [2022-11-19 07:46:51,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:51" (1/1) ... [2022-11-19 07:46:51,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:51" (1/1) ... [2022-11-19 07:46:51,535 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:51" (1/1) ... [2022-11-19 07:46:51,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:51" (1/1) ... [2022-11-19 07:46:51,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:46:51,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:46:51,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:46:51,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:46:51,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:51" (1/1) ... [2022-11-19 07:46:51,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:46:51,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:46:51,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:46:51,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31fe4674-7fc9-4244-8ca0-f0eef2885f97/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:46:51,655 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-19 07:46:51,656 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-19 07:46:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-19 07:46:51,656 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-19 07:46:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:46:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:46:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:46:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:46:51,658 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-19 07:46:51,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:46:51,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:46:51,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:46:51,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:46:51,660 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 07:46:51,876 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:46:51,879 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:46:52,881 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:46:52,895 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:46:52,895 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:46:52,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:52 BoogieIcfgContainer [2022-11-19 07:46:52,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:46:52,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:46:52,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:46:52,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:46:52,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:50" (1/3) ... [2022-11-19 07:46:52,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42395350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:52, skipping insertion in model container [2022-11-19 07:46:52,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:51" (2/3) ... [2022-11-19 07:46:52,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42395350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:52, skipping insertion in model container [2022-11-19 07:46:52,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:52" (3/3) ... [2022-11-19 07:46:52,910 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2022-11-19 07:46:52,923 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 07:46:52,933 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:46:52,934 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-11-19 07:46:52,934 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 07:46:53,178 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-19 07:46:53,238 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 07:46:53,257 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 545 places, 553 transitions, 1122 flow [2022-11-19 07:46:53,262 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 545 places, 553 transitions, 1122 flow [2022-11-19 07:46:53,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 545 places, 553 transitions, 1122 flow [2022-11-19 07:46:53,584 INFO L130 PetriNetUnfolder]: 15/551 cut-off events. [2022-11-19 07:46:53,585 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-19 07:46:53,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 551 events. 15/551 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 791 event pairs, 0 based on Foata normal form. 0/492 useless extension candidates. Maximal degree in co-relation 421. Up to 2 conditions per place. [2022-11-19 07:46:53,637 INFO L119 LiptonReduction]: Number of co-enabled transitions 83848 [2022-11-19 07:47:11,461 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 93 DAG size of output: 91 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 07:47:18,769 WARN L233 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 93 DAG size of output: 91 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 07:47:46,423 WARN L233 SmtUtils]: Spent 24.52s on a formula simplification. DAG size of input: 134 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 07:47:55,108 WARN L233 SmtUtils]: Spent 8.68s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 07:48:30,352 WARN L233 SmtUtils]: Spent 35.24s on a formula simplification. DAG size of input: 141 DAG size of output: 138 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 07:48:41,980 WARN L233 SmtUtils]: Spent 11.63s on a formula simplification that was a NOOP. DAG size: 128 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 07:49:06,553 WARN L233 SmtUtils]: Spent 22.95s on a formula simplification. DAG size of input: 233 DAG size of output: 216 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 07:49:15,728 WARN L233 SmtUtils]: Spent 9.17s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 07:49:55,821 WARN L233 SmtUtils]: Spent 40.09s on a formula simplification. DAG size of input: 240 DAG size of output: 223 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-19 07:50:00,140 INFO L134 LiptonReduction]: Checked pairs total: 1404943 [2022-11-19 07:50:00,140 INFO L136 LiptonReduction]: Total number of compositions: 360 [2022-11-19 07:50:00,150 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 272 places, 274 transitions, 564 flow [2022-11-19 07:50:03,920 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 101442 states, 100799 states have (on average 2.9479955158285303) internal successors, (297155), 101441 states have internal predecessors, (297155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:03,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:50:04,004 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;@319bc289, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:50:04,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2022-11-19 07:50:04,259 INFO L276 IsEmpty]: Start isEmpty. Operand has 101442 states, 100799 states have (on average 2.9479955158285303) internal successors, (297155), 101441 states have internal predecessors, (297155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:04,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 07:50:04,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:04,287 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 07:50:04,288 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-19 07:50:04,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:04,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 1 times [2022-11-19 07:50:04,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:04,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456442858] [2022-11-19 07:50:04,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:04,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:04,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:50:04,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:04,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456442858] [2022-11-19 07:50:04,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456442858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:50:04,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:50:04,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 07:50:04,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173824183] [2022-11-19 07:50:04,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:50:04,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:50:04,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:50:04,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:50:04,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:50:04,817 INFO L87 Difference]: Start difference. First operand has 101442 states, 100799 states have (on average 2.9479955158285303) internal successors, (297155), 101441 states have internal predecessors, (297155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:07,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:50:07,018 INFO L93 Difference]: Finished difference Result 101435 states and 295242 transitions. [2022-11-19 07:50:07,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:50:07,021 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-19 07:50:07,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:50:07,905 INFO L225 Difference]: With dead ends: 101435 [2022-11-19 07:50:07,906 INFO L226 Difference]: Without dead ends: 101435 [2022-11-19 07:50:07,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:50:07,914 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:50:07,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 175 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:50:08,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101435 states. [2022-11-19 07:50:11,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101435 to 101435. [2022-11-19 07:50:11,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101435 states, 100799 states have (on average 2.929017152947946) internal successors, (295242), 101434 states have internal predecessors, (295242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:12,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101435 states to 101435 states and 295242 transitions. [2022-11-19 07:50:12,438 INFO L78 Accepts]: Start accepts. Automaton has 101435 states and 295242 transitions. Word has length 1 [2022-11-19 07:50:12,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:50:12,440 INFO L495 AbstractCegarLoop]: Abstraction has 101435 states and 295242 transitions. [2022-11-19 07:50:12,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:12,444 INFO L276 IsEmpty]: Start isEmpty. Operand 101435 states and 295242 transitions. [2022-11-19 07:50:12,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 07:50:12,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:12,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:50:12,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:50:12,447 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-19 07:50:12,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:12,448 INFO L85 PathProgramCache]: Analyzing trace with hash -2084423311, now seen corresponding path program 1 times [2022-11-19 07:50:12,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:12,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573425469] [2022-11-19 07:50:12,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:12,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:13,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:50:13,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:13,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573425469] [2022-11-19 07:50:13,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573425469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:50:13,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:50:13,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:50:13,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604349987] [2022-11-19 07:50:13,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:50:13,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:50:13,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:50:13,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:50:13,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:50:13,277 INFO L87 Difference]: Start difference. First operand 101435 states and 295242 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:14,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:50:14,971 INFO L93 Difference]: Finished difference Result 147570 states and 429800 transitions. [2022-11-19 07:50:14,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:50:14,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 07:50:14,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:50:15,563 INFO L225 Difference]: With dead ends: 147570 [2022-11-19 07:50:15,563 INFO L226 Difference]: Without dead ends: 147570 [2022-11-19 07:50:15,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:50:15,570 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 245 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:50:15,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 466 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:50:15,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147570 states. [2022-11-19 07:50:18,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147570 to 101435. [2022-11-19 07:50:18,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101435 states, 100821 states have (on average 2.934656470378195) internal successors, (295875), 101434 states have internal predecessors, (295875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:19,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101435 states to 101435 states and 295875 transitions. [2022-11-19 07:50:19,847 INFO L78 Accepts]: Start accepts. Automaton has 101435 states and 295875 transitions. Word has length 8 [2022-11-19 07:50:19,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:50:19,848 INFO L495 AbstractCegarLoop]: Abstraction has 101435 states and 295875 transitions. [2022-11-19 07:50:19,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:19,849 INFO L276 IsEmpty]: Start isEmpty. Operand 101435 states and 295875 transitions. [2022-11-19 07:50:19,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:50:19,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:19,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:50:19,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:50:19,850 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-19 07:50:19,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:19,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1707464838, now seen corresponding path program 1 times [2022-11-19 07:50:19,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:19,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228375966] [2022-11-19 07:50:19,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:19,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:20,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:50:20,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:20,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228375966] [2022-11-19 07:50:20,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228375966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:50:20,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:50:20,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:50:20,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213987317] [2022-11-19 07:50:20,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:50:20,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:50:20,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:50:20,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:50:20,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:50:20,378 INFO L87 Difference]: Start difference. First operand 101435 states and 295875 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:23,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:50:23,156 INFO L93 Difference]: Finished difference Result 130031 states and 380059 transitions. [2022-11-19 07:50:23,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:50:23,157 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 07:50:23,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:50:23,811 INFO L225 Difference]: With dead ends: 130031 [2022-11-19 07:50:23,811 INFO L226 Difference]: Without dead ends: 130031 [2022-11-19 07:50:23,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:50:23,813 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 252 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:50:23,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 245 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-19 07:50:24,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130031 states. [2022-11-19 07:50:26,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130031 to 116303. [2022-11-19 07:50:26,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116303 states, 115695 states have (on average 2.9408271748995203) internal successors, (340239), 116302 states have internal predecessors, (340239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:27,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116303 states to 116303 states and 340239 transitions. [2022-11-19 07:50:27,315 INFO L78 Accepts]: Start accepts. Automaton has 116303 states and 340239 transitions. Word has length 9 [2022-11-19 07:50:27,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:50:27,316 INFO L495 AbstractCegarLoop]: Abstraction has 116303 states and 340239 transitions. [2022-11-19 07:50:27,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:27,316 INFO L276 IsEmpty]: Start isEmpty. Operand 116303 states and 340239 transitions. [2022-11-19 07:50:27,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:50:27,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:27,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:50:27,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:50:27,318 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-19 07:50:27,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:27,319 INFO L85 PathProgramCache]: Analyzing trace with hash 670996428, now seen corresponding path program 1 times [2022-11-19 07:50:27,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:27,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649241358] [2022-11-19 07:50:27,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:27,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:50:27,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:27,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649241358] [2022-11-19 07:50:27,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649241358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:50:27,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:50:27,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:50:27,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197560792] [2022-11-19 07:50:27,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:50:27,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:50:27,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:50:27,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:50:27,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:50:27,751 INFO L87 Difference]: Start difference. First operand 116303 states and 340239 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:32,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:50:32,536 INFO L93 Difference]: Finished difference Result 188991 states and 547440 transitions. [2022-11-19 07:50:32,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:50:32,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-19 07:50:32,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:50:33,345 INFO L225 Difference]: With dead ends: 188991 [2022-11-19 07:50:33,345 INFO L226 Difference]: Without dead ends: 188991 [2022-11-19 07:50:33,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:50:33,346 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 519 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 2117 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 2394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 2117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:50:33,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 351 Invalid, 2394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 2117 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-19 07:50:33,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188991 states. [2022-11-19 07:50:38,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188991 to 173934. [2022-11-19 07:50:38,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173934 states, 173326 states have (on average 2.979749143232983) internal successors, (516468), 173933 states have internal predecessors, (516468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:38,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173934 states to 173934 states and 516468 transitions. [2022-11-19 07:50:38,936 INFO L78 Accepts]: Start accepts. Automaton has 173934 states and 516468 transitions. Word has length 10 [2022-11-19 07:50:38,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:50:38,937 INFO L495 AbstractCegarLoop]: Abstraction has 173934 states and 516468 transitions. [2022-11-19 07:50:38,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:50:38,937 INFO L276 IsEmpty]: Start isEmpty. Operand 173934 states and 516468 transitions. [2022-11-19 07:50:38,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 07:50:38,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:38,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:50:38,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:50:38,941 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-19 07:50:38,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:38,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1452272110, now seen corresponding path program 1 times [2022-11-19 07:50:38,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:38,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886076906] [2022-11-19 07:50:38,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:38,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:39,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:50:39,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:39,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886076906] [2022-11-19 07:50:39,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886076906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:50:39,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:50:39,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:50:39,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941232639] [2022-11-19 07:50:39,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:50:39,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:50:39,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:50:39,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:50:39,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:50:39,258 INFO L87 Difference]: Start difference. First operand 173934 states and 516468 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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) [2022-11-19 07:50:44,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:50:44,002 INFO L93 Difference]: Finished difference Result 255994 states and 759037 transitions. [2022-11-19 07:50:44,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:50:44,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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 [2022-11-19 07:50:44,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:50:45,046 INFO L225 Difference]: With dead ends: 255994 [2022-11-19 07:50:45,046 INFO L226 Difference]: Without dead ends: 255994 [2022-11-19 07:50:45,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:50:45,047 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 388 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1913 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 2174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 1913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:50:45,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 268 Invalid, 2174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 1913 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-19 07:50:45,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255994 states.