./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_ok_longest.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok_longest.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh --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 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d --- 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-2329fc7 [2022-12-14 10:04:00,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:04:00,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:04:00,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:04:00,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:04:00,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:04:00,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:04:00,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:04:00,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:04:00,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:04:00,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:04:00,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:04:00,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:04:00,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:04:00,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:04:00,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:04:00,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:04:00,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:04:00,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:04:00,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:04:00,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:04:00,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:04:00,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:04:00,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:04:00,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:04:00,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:04:00,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:04:00,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:04:00,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:04:00,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:04:00,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:04:00,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:04:00,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:04:00,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:04:00,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:04:00,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:04:00,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:04:00,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:04:00,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:04:00,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:04:00,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:04:00,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 10:04:00,377 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:04:00,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:04:00,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:04:00,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:04:00,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:04:00,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:04:00,379 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:04:00,380 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:04:00,380 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:04:00,380 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:04:00,380 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:04:00,380 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:04:00,381 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:04:00,381 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:04:00,381 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:04:00,381 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:04:00,381 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:04:00,381 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:04:00,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:04:00,382 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:04:00,382 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:04:00,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:04:00,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:04:00,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:04:00,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:04:00,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:04:00,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:04:00,384 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 10:04:00,384 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:04:00,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:04:00,384 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:04:00,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:04:00,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:04:00,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:04:00,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:04:00,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:04:00,385 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:04:00,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:04:00,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:04:00,385 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:04:00,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:04:00,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:04:00,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:04:00,386 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_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d [2022-12-14 10:04:00,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:04:00,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:04:00,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:04:00,591 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:04:00,592 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:04:00,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread/queue_ok_longest.i [2022-12-14 10:04:03,122 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:04:03,292 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:04:03,293 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/sv-benchmarks/c/pthread/queue_ok_longest.i [2022-12-14 10:04:03,304 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/data/3182fe69a/2d0718252554407791d79c11a58db23e/FLAG9d3bdf71e [2022-12-14 10:04:03,315 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/data/3182fe69a/2d0718252554407791d79c11a58db23e [2022-12-14 10:04:03,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:04:03,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:04:03,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:04:03,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:04:03,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:04:03,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:04:03" (1/1) ... [2022-12-14 10:04:03,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2016945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:03, skipping insertion in model container [2022-12-14 10:04:03,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:04:03" (1/1) ... [2022-12-14 10:04:03,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:04:03,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:04:03,696 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/sv-benchmarks/c/pthread/queue_ok_longest.i[43280,43293] [2022-12-14 10:04:03,698 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/sv-benchmarks/c/pthread/queue_ok_longest.i[43553,43566] [2022-12-14 10:04:03,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:04:03,709 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:04:03,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/sv-benchmarks/c/pthread/queue_ok_longest.i[43280,43293] [2022-12-14 10:04:03,776 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/sv-benchmarks/c/pthread/queue_ok_longest.i[43553,43566] [2022-12-14 10:04:03,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:04:03,832 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:04:03,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:03 WrapperNode [2022-12-14 10:04:03,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:04:03,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:04:03,834 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:04:03,834 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:04:03,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:03" (1/1) ... [2022-12-14 10:04:03,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:03" (1/1) ... [2022-12-14 10:04:03,898 INFO L138 Inliner]: procedures = 274, calls = 57, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 387 [2022-12-14 10:04:03,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:04:03,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:04:03,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:04:03,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:04:03,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:03" (1/1) ... [2022-12-14 10:04:03,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:03" (1/1) ... [2022-12-14 10:04:03,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:03" (1/1) ... [2022-12-14 10:04:03,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:03" (1/1) ... [2022-12-14 10:04:03,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:03" (1/1) ... [2022-12-14 10:04:03,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:03" (1/1) ... [2022-12-14 10:04:03,936 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:03" (1/1) ... [2022-12-14 10:04:03,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:03" (1/1) ... [2022-12-14 10:04:03,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:04:03,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:04:03,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:04:03,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:04:03,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:03" (1/1) ... [2022-12-14 10:04:03,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:04:03,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:04:03,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:04:03,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:04:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-14 10:04:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-14 10:04:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-14 10:04:04,001 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-14 10:04:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:04:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:04:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:04:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:04:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 10:04:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:04:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:04:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:04:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:04:04,004 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 10:04:04,137 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:04:04,139 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:04:04,596 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:04:04,603 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:04:04,603 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 10:04:04,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:04:04 BoogieIcfgContainer [2022-12-14 10:04:04,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:04:04,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:04:04,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:04:04,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:04:04,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:04:03" (1/3) ... [2022-12-14 10:04:04,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2352fd19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:04:04, skipping insertion in model container [2022-12-14 10:04:04,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:04:03" (2/3) ... [2022-12-14 10:04:04,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2352fd19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:04:04, skipping insertion in model container [2022-12-14 10:04:04,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:04:04" (3/3) ... [2022-12-14 10:04:04,611 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longest.i [2022-12-14 10:04:04,618 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 10:04:04,626 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:04:04,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2022-12-14 10:04:04,626 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 10:04:04,708 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 10:04:04,743 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 10:04:04,755 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 441 places, 447 transitions, 910 flow [2022-12-14 10:04:04,757 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 441 places, 447 transitions, 910 flow [2022-12-14 10:04:04,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 447 transitions, 910 flow [2022-12-14 10:04:04,880 INFO L130 PetriNetUnfolder]: 13/445 cut-off events. [2022-12-14 10:04:04,880 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 10:04:04,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 445 events. 13/445 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 788 event pairs, 0 based on Foata normal form. 0/397 useless extension candidates. Maximal degree in co-relation 315. Up to 3 conditions per place. [2022-12-14 10:04:04,901 INFO L119 LiptonReduction]: Number of co-enabled transitions 53036 [2022-12-14 10:04:29,047 WARN L233 SmtUtils]: Spent 7.71s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:04:35,858 WARN L233 SmtUtils]: Spent 6.81s 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) [2022-12-14 10:04:45,437 WARN L233 SmtUtils]: Spent 9.58s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:04:53,926 WARN L233 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:05:32,693 WARN L233 SmtUtils]: Spent 38.74s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:05:42,727 WARN L233 SmtUtils]: Spent 10.03s 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) [2022-12-14 10:06:25,879 WARN L233 SmtUtils]: Spent 43.15s on a formula simplification. DAG size of input: 227 DAG size of output: 216 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:06:32,503 WARN L233 SmtUtils]: Spent 6.62s on a formula simplification that was a NOOP. DAG size: 210 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 10:06:32,521 INFO L134 LiptonReduction]: Checked pairs total: 417915 [2022-12-14 10:06:32,521 INFO L136 LiptonReduction]: Total number of compositions: 310 [2022-12-14 10:06:32,527 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 206 places, 206 transitions, 428 flow [2022-12-14 10:06:33,573 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 58938 states, 58527 states have (on average 2.9393613204162183) internal successors, (172032), 58937 states have internal predecessors, (172032), 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) [2022-12-14 10:06:33,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:06:33,596 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;@400b2d23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:06:33,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-12-14 10:06:33,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 58938 states, 58527 states have (on average 2.9393613204162183) internal successors, (172032), 58937 states have internal predecessors, (172032), 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) [2022-12-14 10:06:33,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 10:06:33,706 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:33,706 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 10:06:33,707 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:06:33,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:33,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1585, now seen corresponding path program 1 times [2022-12-14 10:06:33,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:33,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131889148] [2022-12-14 10:06:33,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:33,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:33,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:33,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:33,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131889148] [2022-12-14 10:06:33,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131889148] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:33,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:33,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 10:06:33,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269857330] [2022-12-14 10:06:33,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:33,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:06:33,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:33,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:06:33,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:06:33,921 INFO L87 Difference]: Start difference. First operand has 58938 states, 58527 states have (on average 2.9393613204162183) internal successors, (172032), 58937 states have internal predecessors, (172032), 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) [2022-12-14 10:06:34,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:34,490 INFO L93 Difference]: Finished difference Result 58931 states and 172025 transitions. [2022-12-14 10:06:34,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:06:34,492 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 [2022-12-14 10:06:34,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:34,723 INFO L225 Difference]: With dead ends: 58931 [2022-12-14 10:06:34,723 INFO L226 Difference]: Without dead ends: 58931 [2022-12-14 10:06:34,723 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 [2022-12-14 10:06:34,725 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:34,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:06:34,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58931 states. [2022-12-14 10:06:36,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58931 to 58931. [2022-12-14 10:06:36,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58931 states, 58527 states have (on average 2.939241717497907) internal successors, (172025), 58930 states have internal predecessors, (172025), 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) [2022-12-14 10:06:36,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58931 states to 58931 states and 172025 transitions. [2022-12-14 10:06:36,328 INFO L78 Accepts]: Start accepts. Automaton has 58931 states and 172025 transitions. Word has length 1 [2022-12-14 10:06:36,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:36,328 INFO L495 AbstractCegarLoop]: Abstraction has 58931 states and 172025 transitions. [2022-12-14 10:06:36,328 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) [2022-12-14 10:06:36,328 INFO L276 IsEmpty]: Start isEmpty. Operand 58931 states and 172025 transitions. [2022-12-14 10:06:36,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 10:06:36,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:36,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 10:06:36,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:06:36,329 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:06:36,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:36,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1508904349, now seen corresponding path program 1 times [2022-12-14 10:06:36,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:36,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958705163] [2022-12-14 10:06:36,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:36,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:36,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:36,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:36,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958705163] [2022-12-14 10:06:36,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958705163] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:36,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:36,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:06:36,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599313952] [2022-12-14 10:06:36,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:36,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:06:36,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:36,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:06:36,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:06:36,447 INFO L87 Difference]: Start difference. First operand 58931 states and 172025 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:37,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:37,128 INFO L93 Difference]: Finished difference Result 61848 states and 178592 transitions. [2022-12-14 10:06:37,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:06:37,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 10:06:37,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:37,389 INFO L225 Difference]: With dead ends: 61848 [2022-12-14 10:06:37,389 INFO L226 Difference]: Without dead ends: 61848 [2022-12-14 10:06:37,390 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 [2022-12-14 10:06:37,390 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 181 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:37,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 321 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:06:37,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61848 states. [2022-12-14 10:06:38,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61848 to 58249. [2022-12-14 10:06:38,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58249 states, 57871 states have (on average 2.9385702683554804) internal successors, (170058), 58248 states have internal predecessors, (170058), 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) [2022-12-14 10:06:38,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58249 states to 58249 states and 170058 transitions. [2022-12-14 10:06:38,443 INFO L78 Accepts]: Start accepts. Automaton has 58249 states and 170058 transitions. Word has length 5 [2022-12-14 10:06:38,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:38,443 INFO L495 AbstractCegarLoop]: Abstraction has 58249 states and 170058 transitions. [2022-12-14 10:06:38,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:38,443 INFO L276 IsEmpty]: Start isEmpty. Operand 58249 states and 170058 transitions. [2022-12-14 10:06:38,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 10:06:38,443 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:38,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:06:38,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:06:38,444 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:06:38,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:38,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1631762860, now seen corresponding path program 1 times [2022-12-14 10:06:38,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:38,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41190206] [2022-12-14 10:06:38,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:38,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:38,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:38,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:38,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41190206] [2022-12-14 10:06:38,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41190206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:38,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:38,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:06:38,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142453780] [2022-12-14 10:06:38,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:38,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:06:38,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:38,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:06:38,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:06:38,503 INFO L87 Difference]: Start difference. First operand 58249 states and 170058 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:39,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:39,008 INFO L93 Difference]: Finished difference Result 61567 states and 177890 transitions. [2022-12-14 10:06:39,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:06:39,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 10:06:39,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:39,215 INFO L225 Difference]: With dead ends: 61567 [2022-12-14 10:06:39,216 INFO L226 Difference]: Without dead ends: 61567 [2022-12-14 10:06:39,216 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 [2022-12-14 10:06:39,217 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 178 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:39,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 315 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:06:39,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61567 states. [2022-12-14 10:06:40,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61567 to 57705. [2022-12-14 10:06:40,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57705 states, 57347 states have (on average 2.93814846461018) internal successors, (168494), 57704 states have internal predecessors, (168494), 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) [2022-12-14 10:06:40,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57705 states to 57705 states and 168494 transitions. [2022-12-14 10:06:40,488 INFO L78 Accepts]: Start accepts. Automaton has 57705 states and 168494 transitions. Word has length 7 [2022-12-14 10:06:40,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:40,489 INFO L495 AbstractCegarLoop]: Abstraction has 57705 states and 168494 transitions. [2022-12-14 10:06:40,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:40,490 INFO L276 IsEmpty]: Start isEmpty. Operand 57705 states and 168494 transitions. [2022-12-14 10:06:40,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 10:06:40,490 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:40,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:06:40,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:06:40,491 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:06:40,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:40,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1539557130, now seen corresponding path program 1 times [2022-12-14 10:06:40,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:40,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448825429] [2022-12-14 10:06:40,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:40,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:40,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:40,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:40,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448825429] [2022-12-14 10:06:40,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448825429] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:40,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:40,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:06:40,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532936788] [2022-12-14 10:06:40,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:40,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:06:40,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:40,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:06:40,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:06:40,561 INFO L87 Difference]: Start difference. First operand 57705 states and 168494 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-12-14 10:06:41,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:41,307 INFO L93 Difference]: Finished difference Result 104199 states and 304304 transitions. [2022-12-14 10:06:41,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:06:41,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 [2022-12-14 10:06:41,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:41,576 INFO L225 Difference]: With dead ends: 104199 [2022-12-14 10:06:41,576 INFO L226 Difference]: Without dead ends: 104199 [2022-12-14 10:06:41,576 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 [2022-12-14 10:06:41,577 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 167 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:41,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 319 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:06:41,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104199 states. [2022-12-14 10:06:42,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104199 to 58443. [2022-12-14 10:06:43,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58443 states, 58085 states have (on average 2.9377291899802014) internal successors, (170638), 58442 states have internal predecessors, (170638), 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) [2022-12-14 10:06:43,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58443 states to 58443 states and 170638 transitions. [2022-12-14 10:06:43,173 INFO L78 Accepts]: Start accepts. Automaton has 58443 states and 170638 transitions. Word has length 9 [2022-12-14 10:06:43,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:43,174 INFO L495 AbstractCegarLoop]: Abstraction has 58443 states and 170638 transitions. [2022-12-14 10:06:43,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2022-12-14 10:06:43,174 INFO L276 IsEmpty]: Start isEmpty. Operand 58443 states and 170638 transitions. [2022-12-14 10:06:43,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 10:06:43,175 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:43,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:06:43,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:06:43,175 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:06:43,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:43,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1491742628, now seen corresponding path program 1 times [2022-12-14 10:06:43,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:43,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731005417] [2022-12-14 10:06:43,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:43,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:43,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:43,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:43,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731005417] [2022-12-14 10:06:43,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731005417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:43,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:43,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:06:43,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124039495] [2022-12-14 10:06:43,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:43,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:06:43,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:43,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:06:43,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:06:43,466 INFO L87 Difference]: Start difference. First operand 58443 states and 170638 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) [2022-12-14 10:06:45,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:45,630 INFO L93 Difference]: Finished difference Result 94972 states and 274388 transitions. [2022-12-14 10:06:45,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:06:45,631 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 [2022-12-14 10:06:45,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:45,859 INFO L225 Difference]: With dead ends: 94972 [2022-12-14 10:06:45,859 INFO L226 Difference]: Without dead ends: 94972 [2022-12-14 10:06:45,859 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 [2022-12-14 10:06:45,860 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 389 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 2249 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 2446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 2249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:45,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 336 Invalid, 2446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 2249 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 10:06:46,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94972 states. [2022-12-14 10:06:47,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94972 to 87061. [2022-12-14 10:06:47,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87061 states, 86703 states have (on average 2.977117285445717) internal successors, (258125), 87060 states have internal predecessors, (258125), 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) [2022-12-14 10:06:47,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87061 states to 87061 states and 258125 transitions. [2022-12-14 10:06:47,631 INFO L78 Accepts]: Start accepts. Automaton has 87061 states and 258125 transitions. Word has length 10 [2022-12-14 10:06:47,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:47,631 INFO L495 AbstractCegarLoop]: Abstraction has 87061 states and 258125 transitions. [2022-12-14 10:06:47,631 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) [2022-12-14 10:06:47,631 INFO L276 IsEmpty]: Start isEmpty. Operand 87061 states and 258125 transitions. [2022-12-14 10:06:47,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 10:06:47,633 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:47,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:06:47,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:06:47,634 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:06:47,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:47,634 INFO L85 PathProgramCache]: Analyzing trace with hash -639329682, now seen corresponding path program 1 times [2022-12-14 10:06:47,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:47,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39245105] [2022-12-14 10:06:47,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:47,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:47,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:47,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:47,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39245105] [2022-12-14 10:06:47,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39245105] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:47,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:47,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:06:47,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81066641] [2022-12-14 10:06:47,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:47,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:06:47,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:47,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:06:47,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:06:47,684 INFO L87 Difference]: Start difference. First operand 87061 states and 258125 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-14 10:06:48,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:48,629 INFO L93 Difference]: Finished difference Result 159583 states and 472528 transitions. [2022-12-14 10:06:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:06:48,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-12-14 10:06:48,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:49,127 INFO L225 Difference]: With dead ends: 159583 [2022-12-14 10:06:49,127 INFO L226 Difference]: Without dead ends: 159583 [2022-12-14 10:06:49,127 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 [2022-12-14 10:06:49,128 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 172 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:49,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 315 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:06:49,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159583 states. [2022-12-14 10:06:51,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159583 to 87975. [2022-12-14 10:06:51,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87975 states, 87617 states have (on average 2.9765913007749636) internal successors, (260800), 87974 states have internal predecessors, (260800), 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) [2022-12-14 10:06:51,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87975 states to 87975 states and 260800 transitions. [2022-12-14 10:06:51,479 INFO L78 Accepts]: Start accepts. Automaton has 87975 states and 260800 transitions. Word has length 11 [2022-12-14 10:06:51,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:51,479 INFO L495 AbstractCegarLoop]: Abstraction has 87975 states and 260800 transitions. [2022-12-14 10:06:51,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-14 10:06:51,479 INFO L276 IsEmpty]: Start isEmpty. Operand 87975 states and 260800 transitions. [2022-12-14 10:06:51,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 10:06:51,480 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:51,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:06:51,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:06:51,481 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:06:51,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:51,481 INFO L85 PathProgramCache]: Analyzing trace with hash -188569998, now seen corresponding path program 1 times [2022-12-14 10:06:51,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:51,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812692690] [2022-12-14 10:06:51,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:51,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:51,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:51,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:51,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812692690] [2022-12-14 10:06:51,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812692690] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:51,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:51,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:06:51,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072519480] [2022-12-14 10:06:51,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:51,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:06:51,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:51,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:06:51,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:06:51,747 INFO L87 Difference]: Start difference. First operand 87975 states and 260800 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:53,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:53,514 INFO L93 Difference]: Finished difference Result 111765 states and 331753 transitions. [2022-12-14 10:06:53,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:06:53,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-14 10:06:53,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:53,872 INFO L225 Difference]: With dead ends: 111765 [2022-12-14 10:06:53,872 INFO L226 Difference]: Without dead ends: 111765 [2022-12-14 10:06:53,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:06:53,873 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 232 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:53,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 236 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 10:06:54,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111765 states. [2022-12-14 10:06:55,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111765 to 100281. [2022-12-14 10:06:55,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100281 states, 99923 states have (on average 2.9822363219679153) internal successors, (297994), 100280 states have internal predecessors, (297994), 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) [2022-12-14 10:06:55,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100281 states to 100281 states and 297994 transitions. [2022-12-14 10:06:55,965 INFO L78 Accepts]: Start accepts. Automaton has 100281 states and 297994 transitions. Word has length 12 [2022-12-14 10:06:55,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:55,965 INFO L495 AbstractCegarLoop]: Abstraction has 100281 states and 297994 transitions. [2022-12-14 10:06:55,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:06:55,965 INFO L276 IsEmpty]: Start isEmpty. Operand 100281 states and 297994 transitions. [2022-12-14 10:06:55,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 10:06:55,966 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:55,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:06:55,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 10:06:55,967 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:06:55,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:55,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1066052093, now seen corresponding path program 1 times [2022-12-14 10:06:55,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:55,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055102212] [2022-12-14 10:06:55,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:55,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:56,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:06:56,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:56,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055102212] [2022-12-14 10:06:56,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055102212] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:56,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:56,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:06:56,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91991816] [2022-12-14 10:06:56,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:56,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:06:56,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:56,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:06:56,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:06:56,150 INFO L87 Difference]: Start difference. First operand 100281 states and 297994 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) [2022-12-14 10:06:57,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:57,877 INFO L93 Difference]: Finished difference Result 139427 states and 413453 transitions. [2022-12-14 10:06:57,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:06:57,878 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 [2022-12-14 10:06:57,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:58,323 INFO L225 Difference]: With dead ends: 139427 [2022-12-14 10:06:58,323 INFO L226 Difference]: Without dead ends: 139427 [2022-12-14 10:06:58,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:06:58,324 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 275 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:58,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 194 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:06:58,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139427 states. [2022-12-14 10:07:00,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139427 to 103373. [2022-12-14 10:07:00,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103373 states, 103021 states have (on average 2.9800429038739673) internal successors, (307007), 103372 states have internal predecessors, (307007), 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) [2022-12-14 10:07:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103373 states to 103373 states and 307007 transitions. [2022-12-14 10:07:00,741 INFO L78 Accepts]: Start accepts. Automaton has 103373 states and 307007 transitions. Word has length 14 [2022-12-14 10:07:00,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:00,741 INFO L495 AbstractCegarLoop]: Abstraction has 103373 states and 307007 transitions. [2022-12-14 10:07:00,741 INFO L496 AbstractCegarLoop]: INTERPOLANT 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) [2022-12-14 10:07:00,741 INFO L276 IsEmpty]: Start isEmpty. Operand 103373 states and 307007 transitions. [2022-12-14 10:07:00,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 10:07:00,744 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:00,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:00,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:07:00,744 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:00,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:00,745 INFO L85 PathProgramCache]: Analyzing trace with hash 962808390, now seen corresponding path program 1 times [2022-12-14 10:07:00,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:00,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808167262] [2022-12-14 10:07:00,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:00,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:00,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:00,981 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:00,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808167262] [2022-12-14 10:07:00,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808167262] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:00,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:00,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:07:00,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106962130] [2022-12-14 10:07:00,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:00,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:07:00,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:00,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:07:00,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:07:00,983 INFO L87 Difference]: Start difference. First operand 103373 states and 307007 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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) [2022-12-14 10:07:02,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:02,978 INFO L93 Difference]: Finished difference Result 106278 states and 315437 transitions. [2022-12-14 10:07:02,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:07:02,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2022-12-14 10:07:02,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:03,270 INFO L225 Difference]: With dead ends: 106278 [2022-12-14 10:07:03,270 INFO L226 Difference]: Without dead ends: 106278 [2022-12-14 10:07:03,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:07:03,271 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 224 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 1853 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:03,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 255 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1853 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 10:07:03,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106278 states. [2022-12-14 10:07:05,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106278 to 106278. [2022-12-14 10:07:05,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106278 states, 105926 states have (on average 2.9778996658044297) internal successors, (315437), 106277 states have internal predecessors, (315437), 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) [2022-12-14 10:07:05,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106278 states to 106278 states and 315437 transitions. [2022-12-14 10:07:05,561 INFO L78 Accepts]: Start accepts. Automaton has 106278 states and 315437 transitions. Word has length 18 [2022-12-14 10:07:05,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:05,561 INFO L495 AbstractCegarLoop]: Abstraction has 106278 states and 315437 transitions. [2022-12-14 10:07:05,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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) [2022-12-14 10:07:05,561 INFO L276 IsEmpty]: Start isEmpty. Operand 106278 states and 315437 transitions. [2022-12-14 10:07:05,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 10:07:05,564 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:05,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:05,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 10:07:05,564 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:05,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:05,564 INFO L85 PathProgramCache]: Analyzing trace with hash 546202497, now seen corresponding path program 1 times [2022-12-14 10:07:05,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:05,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572596502] [2022-12-14 10:07:05,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:05,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:05,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:05,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:05,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572596502] [2022-12-14 10:07:05,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572596502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:05,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:05,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:07:05,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655726794] [2022-12-14 10:07:05,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:05,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:07:05,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:05,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:07:05,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:07:05,618 INFO L87 Difference]: Start difference. First operand 106278 states and 315437 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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) [2022-12-14 10:07:05,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:05,744 INFO L93 Difference]: Finished difference Result 11644 states and 31433 transitions. [2022-12-14 10:07:05,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:07:05,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 20 [2022-12-14 10:07:05,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:05,763 INFO L225 Difference]: With dead ends: 11644 [2022-12-14 10:07:05,763 INFO L226 Difference]: Without dead ends: 11640 [2022-12-14 10:07:05,763 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 [2022-12-14 10:07:05,763 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 100 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:05,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 202 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:07:05,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11640 states. [2022-12-14 10:07:05,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11640 to 11559. [2022-12-14 10:07:05,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11559 states, 11461 states have (on average 2.73004100863799) internal successors, (31289), 11558 states have internal predecessors, (31289), 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) [2022-12-14 10:07:05,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11559 states to 11559 states and 31289 transitions. [2022-12-14 10:07:05,929 INFO L78 Accepts]: Start accepts. Automaton has 11559 states and 31289 transitions. Word has length 20 [2022-12-14 10:07:05,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:05,930 INFO L495 AbstractCegarLoop]: Abstraction has 11559 states and 31289 transitions. [2022-12-14 10:07:05,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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) [2022-12-14 10:07:05,930 INFO L276 IsEmpty]: Start isEmpty. Operand 11559 states and 31289 transitions. [2022-12-14 10:07:05,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 10:07:05,931 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:05,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:05,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 10:07:05,932 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:05,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:05,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1901541456, now seen corresponding path program 1 times [2022-12-14 10:07:05,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:05,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213052341] [2022-12-14 10:07:05,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:05,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:06,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:06,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:06,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213052341] [2022-12-14 10:07:06,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213052341] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:06,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:06,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:07:06,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330526507] [2022-12-14 10:07:06,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:06,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:07:06,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:06,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:07:06,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:07:06,165 INFO L87 Difference]: Start difference. First operand 11559 states and 31289 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:06,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:06,298 INFO L93 Difference]: Finished difference Result 11524 states and 31128 transitions. [2022-12-14 10:07:06,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:07:06,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-12-14 10:07:06,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:06,321 INFO L225 Difference]: With dead ends: 11524 [2022-12-14 10:07:06,321 INFO L226 Difference]: Without dead ends: 11524 [2022-12-14 10:07:06,321 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 [2022-12-14 10:07:06,322 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 92 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:06,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 211 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:07:06,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11524 states. [2022-12-14 10:07:06,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11524 to 11457. [2022-12-14 10:07:06,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11457 states, 11360 states have (on average 2.7304577464788733) internal successors, (31018), 11456 states have internal predecessors, (31018), 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) [2022-12-14 10:07:06,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11457 states to 11457 states and 31018 transitions. [2022-12-14 10:07:06,483 INFO L78 Accepts]: Start accepts. Automaton has 11457 states and 31018 transitions. Word has length 21 [2022-12-14 10:07:06,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:06,483 INFO L495 AbstractCegarLoop]: Abstraction has 11457 states and 31018 transitions. [2022-12-14 10:07:06,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:07:06,484 INFO L276 IsEmpty]: Start isEmpty. Operand 11457 states and 31018 transitions. [2022-12-14 10:07:06,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 10:07:06,485 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:06,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:06,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 10:07:06,485 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:06,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:06,485 INFO L85 PathProgramCache]: Analyzing trace with hash 310532576, now seen corresponding path program 1 times [2022-12-14 10:07:06,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:06,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609952028] [2022-12-14 10:07:06,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:06,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:06,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:06,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:06,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609952028] [2022-12-14 10:07:06,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609952028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:06,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:06,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:06,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688045425] [2022-12-14 10:07:06,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:06,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 10:07:06,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:06,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 10:07:06,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:07:06,820 INFO L87 Difference]: Start difference. First operand 11457 states and 31018 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2022-12-14 10:07:07,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:07,318 INFO L93 Difference]: Finished difference Result 11397 states and 30854 transitions. [2022-12-14 10:07:07,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 10:07:07,318 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 22 [2022-12-14 10:07:07,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:07,336 INFO L225 Difference]: With dead ends: 11397 [2022-12-14 10:07:07,336 INFO L226 Difference]: Without dead ends: 11397 [2022-12-14 10:07:07,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-12-14 10:07:07,337 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 397 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:07,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 126 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 10:07:07,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11397 states. [2022-12-14 10:07:07,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11397 to 11259. [2022-12-14 10:07:07,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11259 states, 11166 states have (on average 2.730342109976715) internal successors, (30487), 11258 states have internal predecessors, (30487), 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) [2022-12-14 10:07:07,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11259 states to 11259 states and 30487 transitions. [2022-12-14 10:07:07,486 INFO L78 Accepts]: Start accepts. Automaton has 11259 states and 30487 transitions. Word has length 22 [2022-12-14 10:07:07,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:07,486 INFO L495 AbstractCegarLoop]: Abstraction has 11259 states and 30487 transitions. [2022-12-14 10:07:07,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2022-12-14 10:07:07,486 INFO L276 IsEmpty]: Start isEmpty. Operand 11259 states and 30487 transitions. [2022-12-14 10:07:07,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 10:07:07,488 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:07,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:07,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 10:07:07,488 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:07,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:07,488 INFO L85 PathProgramCache]: Analyzing trace with hash -316059591, now seen corresponding path program 1 times [2022-12-14 10:07:07,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:07,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019303827] [2022-12-14 10:07:07,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:07,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:07,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:07,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:07,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019303827] [2022-12-14 10:07:07,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019303827] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:07,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:07,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:07,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932663602] [2022-12-14 10:07:07,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:07,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 10:07:07,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:07,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 10:07:07,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:07:07,885 INFO L87 Difference]: Start difference. First operand 11259 states and 30487 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2022-12-14 10:07:09,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:09,375 INFO L93 Difference]: Finished difference Result 13958 states and 36733 transitions. [2022-12-14 10:07:09,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 10:07:09,375 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 22 [2022-12-14 10:07:09,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:09,399 INFO L225 Difference]: With dead ends: 13958 [2022-12-14 10:07:09,399 INFO L226 Difference]: Without dead ends: 13958 [2022-12-14 10:07:09,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-12-14 10:07:09,399 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 820 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 2576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:09,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 282 Invalid, 2576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 2242 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 10:07:09,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13958 states. [2022-12-14 10:07:09,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13958 to 11259. [2022-12-14 10:07:09,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11259 states, 11166 states have (on average 2.730342109976715) internal successors, (30487), 11258 states have internal predecessors, (30487), 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) [2022-12-14 10:07:09,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11259 states to 11259 states and 30487 transitions. [2022-12-14 10:07:09,556 INFO L78 Accepts]: Start accepts. Automaton has 11259 states and 30487 transitions. Word has length 22 [2022-12-14 10:07:09,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:09,556 INFO L495 AbstractCegarLoop]: Abstraction has 11259 states and 30487 transitions. [2022-12-14 10:07:09,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2022-12-14 10:07:09,556 INFO L276 IsEmpty]: Start isEmpty. Operand 11259 states and 30487 transitions. [2022-12-14 10:07:09,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 10:07:09,557 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:09,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:09,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 10:07:09,557 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:09,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:09,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1001202859, now seen corresponding path program 1 times [2022-12-14 10:07:09,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:09,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247986028] [2022-12-14 10:07:09,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:09,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:09,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:09,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:09,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247986028] [2022-12-14 10:07:09,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247986028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:09,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:09,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:07:09,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675512032] [2022-12-14 10:07:09,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:09,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:07:09,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:09,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:07:09,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:07:09,743 INFO L87 Difference]: Start difference. First operand 11259 states and 30487 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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) [2022-12-14 10:07:10,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:10,010 INFO L93 Difference]: Finished difference Result 11185 states and 30285 transitions. [2022-12-14 10:07:10,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:07:10,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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 24 [2022-12-14 10:07:10,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:10,029 INFO L225 Difference]: With dead ends: 11185 [2022-12-14 10:07:10,029 INFO L226 Difference]: Without dead ends: 11185 [2022-12-14 10:07:10,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:07:10,030 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 44 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:10,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 143 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:07:10,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11185 states. [2022-12-14 10:07:10,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11185 to 11185. [2022-12-14 10:07:10,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11185 states, 11096 states have (on average 2.72936193222783) internal successors, (30285), 11184 states have internal predecessors, (30285), 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) [2022-12-14 10:07:10,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11185 states to 11185 states and 30285 transitions. [2022-12-14 10:07:10,175 INFO L78 Accepts]: Start accepts. Automaton has 11185 states and 30285 transitions. Word has length 24 [2022-12-14 10:07:10,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:10,175 INFO L495 AbstractCegarLoop]: Abstraction has 11185 states and 30285 transitions. [2022-12-14 10:07:10,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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) [2022-12-14 10:07:10,176 INFO L276 IsEmpty]: Start isEmpty. Operand 11185 states and 30285 transitions. [2022-12-14 10:07:10,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 10:07:10,177 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:10,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:10,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 10:07:10,177 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:10,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:10,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1387198353, now seen corresponding path program 1 times [2022-12-14 10:07:10,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:10,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713118246] [2022-12-14 10:07:10,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:10,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:10,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:10,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:10,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713118246] [2022-12-14 10:07:10,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713118246] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:10,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:10,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:07:10,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297993068] [2022-12-14 10:07:10,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:10,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:07:10,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:10,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:07:10,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:07:10,385 INFO L87 Difference]: Start difference. First operand 11185 states and 30285 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2022-12-14 10:07:10,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:10,734 INFO L93 Difference]: Finished difference Result 11435 states and 30965 transitions. [2022-12-14 10:07:10,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:07:10,735 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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 30 [2022-12-14 10:07:10,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:10,756 INFO L225 Difference]: With dead ends: 11435 [2022-12-14 10:07:10,756 INFO L226 Difference]: Without dead ends: 11435 [2022-12-14 10:07:10,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:07:10,757 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 42 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:10,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 158 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:07:10,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11435 states. [2022-12-14 10:07:10,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11435 to 11381. [2022-12-14 10:07:10,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11381 states, 11292 states have (on average 2.7291888062345024) internal successors, (30818), 11380 states have internal predecessors, (30818), 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) [2022-12-14 10:07:10,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11381 states to 11381 states and 30818 transitions. [2022-12-14 10:07:10,928 INFO L78 Accepts]: Start accepts. Automaton has 11381 states and 30818 transitions. Word has length 30 [2022-12-14 10:07:10,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:10,928 INFO L495 AbstractCegarLoop]: Abstraction has 11381 states and 30818 transitions. [2022-12-14 10:07:10,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2022-12-14 10:07:10,928 INFO L276 IsEmpty]: Start isEmpty. Operand 11381 states and 30818 transitions. [2022-12-14 10:07:10,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 10:07:10,930 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:10,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:10,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 10:07:10,930 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:10,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:10,930 INFO L85 PathProgramCache]: Analyzing trace with hash -356398213, now seen corresponding path program 1 times [2022-12-14 10:07:10,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:10,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257777553] [2022-12-14 10:07:10,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:10,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:11,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:11,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:11,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257777553] [2022-12-14 10:07:11,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257777553] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:11,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:11,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:11,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767589218] [2022-12-14 10:07:11,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:11,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 10:07:11,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:11,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 10:07:11,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:07:11,231 INFO L87 Difference]: Start difference. First operand 11381 states and 30818 transitions. Second operand has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2022-12-14 10:07:11,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:11,747 INFO L93 Difference]: Finished difference Result 11327 states and 30671 transitions. [2022-12-14 10:07:11,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 10:07:11,747 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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 34 [2022-12-14 10:07:11,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:11,765 INFO L225 Difference]: With dead ends: 11327 [2022-12-14 10:07:11,765 INFO L226 Difference]: Without dead ends: 11327 [2022-12-14 10:07:11,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-12-14 10:07:11,765 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 381 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:11,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 125 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 10:07:11,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11327 states. [2022-12-14 10:07:11,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11327 to 11111. [2022-12-14 10:07:11,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11111 states, 11026 states have (on average 2.7283693089062218) internal successors, (30083), 11110 states have internal predecessors, (30083), 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) [2022-12-14 10:07:11,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11111 states to 11111 states and 30083 transitions. [2022-12-14 10:07:11,911 INFO L78 Accepts]: Start accepts. Automaton has 11111 states and 30083 transitions. Word has length 34 [2022-12-14 10:07:11,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:11,911 INFO L495 AbstractCegarLoop]: Abstraction has 11111 states and 30083 transitions. [2022-12-14 10:07:11,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2022-12-14 10:07:11,911 INFO L276 IsEmpty]: Start isEmpty. Operand 11111 states and 30083 transitions. [2022-12-14 10:07:11,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-14 10:07:11,913 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:11,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:11,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 10:07:11,913 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:11,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:11,914 INFO L85 PathProgramCache]: Analyzing trace with hash -348805282, now seen corresponding path program 1 times [2022-12-14 10:07:11,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:11,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903407873] [2022-12-14 10:07:11,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:11,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:12,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:12,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:12,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903407873] [2022-12-14 10:07:12,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903407873] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:12,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:12,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:07:12,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998972923] [2022-12-14 10:07:12,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:12,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:07:12,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:12,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:07:12,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:07:12,143 INFO L87 Difference]: Start difference. First operand 11111 states and 30083 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 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) [2022-12-14 10:07:12,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:12,639 INFO L93 Difference]: Finished difference Result 11307 states and 30616 transitions. [2022-12-14 10:07:12,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:07:12,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2022-12-14 10:07:12,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:12,656 INFO L225 Difference]: With dead ends: 11307 [2022-12-14 10:07:12,656 INFO L226 Difference]: Without dead ends: 11307 [2022-12-14 10:07:12,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:07:12,657 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 40 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:12,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 172 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 10:07:12,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11307 states. [2022-12-14 10:07:12,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11307 to 11307. [2022-12-14 10:07:12,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11307 states, 11222 states have (on average 2.728212439850294) internal successors, (30616), 11306 states have internal predecessors, (30616), 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) [2022-12-14 10:07:12,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11307 states to 11307 states and 30616 transitions. [2022-12-14 10:07:12,799 INFO L78 Accepts]: Start accepts. Automaton has 11307 states and 30616 transitions. Word has length 42 [2022-12-14 10:07:12,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:12,799 INFO L495 AbstractCegarLoop]: Abstraction has 11307 states and 30616 transitions. [2022-12-14 10:07:12,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 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) [2022-12-14 10:07:12,799 INFO L276 IsEmpty]: Start isEmpty. Operand 11307 states and 30616 transitions. [2022-12-14 10:07:12,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 10:07:12,801 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:12,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:12,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 10:07:12,802 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:12,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:12,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1259527814, now seen corresponding path program 1 times [2022-12-14 10:07:12,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:12,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548636303] [2022-12-14 10:07:12,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:12,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:13,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:13,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:13,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548636303] [2022-12-14 10:07:13,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548636303] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:13,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:13,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:13,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885733597] [2022-12-14 10:07:13,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:13,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 10:07:13,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:13,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 10:07:13,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:07:13,164 INFO L87 Difference]: Start difference. First operand 11307 states and 30616 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-12-14 10:07:13,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:13,615 INFO L93 Difference]: Finished difference Result 11253 states and 30469 transitions. [2022-12-14 10:07:13,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 10:07:13,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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 46 [2022-12-14 10:07:13,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:13,632 INFO L225 Difference]: With dead ends: 11253 [2022-12-14 10:07:13,632 INFO L226 Difference]: Without dead ends: 11253 [2022-12-14 10:07:13,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-12-14 10:07:13,633 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 358 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:13,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 127 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 10:07:13,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11253 states. [2022-12-14 10:07:13,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11253 to 11037. [2022-12-14 10:07:13,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11037 states, 10956 states have (on average 2.727364001460387) internal successors, (29881), 11036 states have internal predecessors, (29881), 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) [2022-12-14 10:07:13,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11037 states to 11037 states and 29881 transitions. [2022-12-14 10:07:13,792 INFO L78 Accepts]: Start accepts. Automaton has 11037 states and 29881 transitions. Word has length 46 [2022-12-14 10:07:13,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:13,793 INFO L495 AbstractCegarLoop]: Abstraction has 11037 states and 29881 transitions. [2022-12-14 10:07:13,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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) [2022-12-14 10:07:13,793 INFO L276 IsEmpty]: Start isEmpty. Operand 11037 states and 29881 transitions. [2022-12-14 10:07:13,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 10:07:13,795 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:13,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:13,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 10:07:13,795 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:13,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash 996354675, now seen corresponding path program 1 times [2022-12-14 10:07:13,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:13,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513490456] [2022-12-14 10:07:13,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:13,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:14,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:14,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:14,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513490456] [2022-12-14 10:07:14,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513490456] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:14,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:14,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:07:14,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344345547] [2022-12-14 10:07:14,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:14,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:07:14,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:14,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:07:14,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:07:14,055 INFO L87 Difference]: Start difference. First operand 11037 states and 29881 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-12-14 10:07:14,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:14,409 INFO L93 Difference]: Finished difference Result 11233 states and 30414 transitions. [2022-12-14 10:07:14,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:07:14,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2022-12-14 10:07:14,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:14,426 INFO L225 Difference]: With dead ends: 11233 [2022-12-14 10:07:14,426 INFO L226 Difference]: Without dead ends: 11233 [2022-12-14 10:07:14,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:07:14,426 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 40 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:14,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 171 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:07:14,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11233 states. [2022-12-14 10:07:14,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11233 to 11233. [2022-12-14 10:07:14,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11233 states, 11152 states have (on average 2.7272238163558105) internal successors, (30414), 11232 states have internal predecessors, (30414), 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) [2022-12-14 10:07:14,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11233 states to 11233 states and 30414 transitions. [2022-12-14 10:07:14,573 INFO L78 Accepts]: Start accepts. Automaton has 11233 states and 30414 transitions. Word has length 48 [2022-12-14 10:07:14,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:14,573 INFO L495 AbstractCegarLoop]: Abstraction has 11233 states and 30414 transitions. [2022-12-14 10:07:14,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-12-14 10:07:14,573 INFO L276 IsEmpty]: Start isEmpty. Operand 11233 states and 30414 transitions. [2022-12-14 10:07:14,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 10:07:14,575 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:14,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:14,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 10:07:14,575 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t1Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:14,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:14,576 INFO L85 PathProgramCache]: Analyzing trace with hash -919401881, now seen corresponding path program 1 times [2022-12-14 10:07:14,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:14,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004994367] [2022-12-14 10:07:14,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:14,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:14,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:14,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:14,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004994367] [2022-12-14 10:07:14,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004994367] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:14,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:14,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:07:14,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619963785] [2022-12-14 10:07:14,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:14,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:07:14,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:14,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:07:14,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:07:14,811 INFO L87 Difference]: Start difference. First operand 11233 states and 30414 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-12-14 10:07:15,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:15,312 INFO L93 Difference]: Finished difference Result 11357 states and 30743 transitions. [2022-12-14 10:07:15,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:07:15,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2022-12-14 10:07:15,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:15,329 INFO L225 Difference]: With dead ends: 11357 [2022-12-14 10:07:15,329 INFO L226 Difference]: Without dead ends: 11357 [2022-12-14 10:07:15,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:07:15,330 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 40 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:15,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 177 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 10:07:15,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11357 states. [2022-12-14 10:07:15,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11357 to 11357. [2022-12-14 10:07:15,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11357 states, 11276 states have (on average 2.7264100744945017) internal successors, (30743), 11356 states have internal predecessors, (30743), 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) [2022-12-14 10:07:15,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11357 states to 11357 states and 30743 transitions. [2022-12-14 10:07:15,510 INFO L78 Accepts]: Start accepts. Automaton has 11357 states and 30743 transitions. Word has length 48 [2022-12-14 10:07:15,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:15,510 INFO L495 AbstractCegarLoop]: Abstraction has 11357 states and 30743 transitions. [2022-12-14 10:07:15,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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) [2022-12-14 10:07:15,510 INFO L276 IsEmpty]: Start isEmpty. Operand 11357 states and 30743 transitions. [2022-12-14 10:07:15,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-14 10:07:15,514 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:15,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:15,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 10:07:15,515 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:15,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:15,515 INFO L85 PathProgramCache]: Analyzing trace with hash -880825343, now seen corresponding path program 1 times [2022-12-14 10:07:15,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:15,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216376310] [2022-12-14 10:07:15,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:15,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:15,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:15,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:15,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216376310] [2022-12-14 10:07:15,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216376310] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:07:15,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609915335] [2022-12-14 10:07:15,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:15,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:15,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:07:15,595 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:07:15,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:07:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:15,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:07:15,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:07:15,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:07:15,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:07:15,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609915335] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:15,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:07:15,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 10:07:15,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691243913] [2022-12-14 10:07:15,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:15,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:07:15,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:15,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:07:15,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:07:15,783 INFO L87 Difference]: Start difference. First operand 11357 states and 30743 transitions. Second operand has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-12-14 10:07:15,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:15,937 INFO L93 Difference]: Finished difference Result 11283 states and 30541 transitions. [2022-12-14 10:07:15,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:07:15,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2022-12-14 10:07:15,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:15,959 INFO L225 Difference]: With dead ends: 11283 [2022-12-14 10:07:15,959 INFO L226 Difference]: Without dead ends: 11283 [2022-12-14 10:07:15,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:07:15,960 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 14 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:15,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 243 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:07:15,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11283 states. [2022-12-14 10:07:16,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11283 to 11283. [2022-12-14 10:07:16,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11283 states, 11206 states have (on average 2.725414956273425) internal successors, (30541), 11282 states have internal predecessors, (30541), 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) [2022-12-14 10:07:16,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11283 states to 11283 states and 30541 transitions. [2022-12-14 10:07:16,166 INFO L78 Accepts]: Start accepts. Automaton has 11283 states and 30541 transitions. Word has length 51 [2022-12-14 10:07:16,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:16,166 INFO L495 AbstractCegarLoop]: Abstraction has 11283 states and 30541 transitions. [2022-12-14 10:07:16,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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) [2022-12-14 10:07:16,167 INFO L276 IsEmpty]: Start isEmpty. Operand 11283 states and 30541 transitions. [2022-12-14 10:07:16,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 10:07:16,169 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:16,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:16,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:07:16,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:16,370 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:16,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:16,371 INFO L85 PathProgramCache]: Analyzing trace with hash -810676495, now seen corresponding path program 1 times [2022-12-14 10:07:16,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:16,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065534573] [2022-12-14 10:07:16,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:16,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:16,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:16,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:16,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065534573] [2022-12-14 10:07:16,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065534573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:16,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:16,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:07:16,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737937168] [2022-12-14 10:07:16,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:16,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 10:07:16,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:16,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 10:07:16,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:07:16,700 INFO L87 Difference]: Start difference. First operand 11283 states and 30541 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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) [2022-12-14 10:07:17,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:17,251 INFO L93 Difference]: Finished difference Result 11229 states and 30394 transitions. [2022-12-14 10:07:17,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 10:07:17,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 52 [2022-12-14 10:07:17,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:17,267 INFO L225 Difference]: With dead ends: 11229 [2022-12-14 10:07:17,267 INFO L226 Difference]: Without dead ends: 11229 [2022-12-14 10:07:17,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-12-14 10:07:17,268 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 356 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:17,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 134 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 10:07:17,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11229 states. [2022-12-14 10:07:17,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11229 to 11013. [2022-12-14 10:07:17,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11013 states, 10940 states have (on average 2.7244972577696527) internal successors, (29806), 11012 states have internal predecessors, (29806), 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) [2022-12-14 10:07:17,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11013 states to 11013 states and 29806 transitions. [2022-12-14 10:07:17,407 INFO L78 Accepts]: Start accepts. Automaton has 11013 states and 29806 transitions. Word has length 52 [2022-12-14 10:07:17,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:17,407 INFO L495 AbstractCegarLoop]: Abstraction has 11013 states and 29806 transitions. [2022-12-14 10:07:17,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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) [2022-12-14 10:07:17,407 INFO L276 IsEmpty]: Start isEmpty. Operand 11013 states and 29806 transitions. [2022-12-14 10:07:17,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 10:07:17,410 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:17,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:17,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 10:07:17,410 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t1Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:17,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:17,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1589104943, now seen corresponding path program 1 times [2022-12-14 10:07:17,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:17,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312052993] [2022-12-14 10:07:17,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:17,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:17,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:17,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:17,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312052993] [2022-12-14 10:07:17,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312052993] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:17,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:17,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:07:17,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830418033] [2022-12-14 10:07:17,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:17,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:17,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:17,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:17,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:17,757 INFO L87 Difference]: Start difference. First operand 11013 states and 29806 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2022-12-14 10:07:18,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:18,238 INFO L93 Difference]: Finished difference Result 10953 states and 29642 transitions. [2022-12-14 10:07:18,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:07:18,238 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2022-12-14 10:07:18,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:18,258 INFO L225 Difference]: With dead ends: 10953 [2022-12-14 10:07:18,258 INFO L226 Difference]: Without dead ends: 10953 [2022-12-14 10:07:18,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:18,259 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 171 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:18,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 161 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 10:07:18,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10953 states. [2022-12-14 10:07:18,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10953 to 10815. [2022-12-14 10:07:18,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10815 states, 10746 states have (on average 2.7242694956262796) internal successors, (29275), 10814 states have internal predecessors, (29275), 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) [2022-12-14 10:07:18,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10815 states to 10815 states and 29275 transitions. [2022-12-14 10:07:18,455 INFO L78 Accepts]: Start accepts. Automaton has 10815 states and 29275 transitions. Word has length 52 [2022-12-14 10:07:18,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:18,455 INFO L495 AbstractCegarLoop]: Abstraction has 10815 states and 29275 transitions. [2022-12-14 10:07:18,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2022-12-14 10:07:18,456 INFO L276 IsEmpty]: Start isEmpty. Operand 10815 states and 29275 transitions. [2022-12-14 10:07:18,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 10:07:18,460 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:18,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:18,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 10:07:18,460 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:18,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:18,460 INFO L85 PathProgramCache]: Analyzing trace with hash 888329555, now seen corresponding path program 1 times [2022-12-14 10:07:18,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:18,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238107662] [2022-12-14 10:07:18,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:18,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:19,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:19,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:19,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238107662] [2022-12-14 10:07:19,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238107662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:19,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:19,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:07:19,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437099782] [2022-12-14 10:07:19,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:19,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 10:07:19,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:19,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 10:07:19,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:07:19,133 INFO L87 Difference]: Start difference. First operand 10815 states and 29275 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 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) [2022-12-14 10:07:19,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:19,518 INFO L93 Difference]: Finished difference Result 14205 states and 38360 transitions. [2022-12-14 10:07:19,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:07:19,518 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2022-12-14 10:07:19,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:19,541 INFO L225 Difference]: With dead ends: 14205 [2022-12-14 10:07:19,541 INFO L226 Difference]: Without dead ends: 14205 [2022-12-14 10:07:19,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-12-14 10:07:19,542 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 156 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:19,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 508 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:07:19,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14205 states. [2022-12-14 10:07:19,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14205 to 12091. [2022-12-14 10:07:19,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12091 states, 12022 states have (on average 2.7173515222092828) internal successors, (32668), 12090 states have internal predecessors, (32668), 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) [2022-12-14 10:07:19,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12091 states to 12091 states and 32668 transitions. [2022-12-14 10:07:19,714 INFO L78 Accepts]: Start accepts. Automaton has 12091 states and 32668 transitions. Word has length 52 [2022-12-14 10:07:19,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:19,714 INFO L495 AbstractCegarLoop]: Abstraction has 12091 states and 32668 transitions. [2022-12-14 10:07:19,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 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) [2022-12-14 10:07:19,714 INFO L276 IsEmpty]: Start isEmpty. Operand 12091 states and 32668 transitions. [2022-12-14 10:07:19,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 10:07:19,718 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:19,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:19,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 10:07:19,719 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:19,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:19,719 INFO L85 PathProgramCache]: Analyzing trace with hash 640530129, now seen corresponding path program 2 times [2022-12-14 10:07:19,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:19,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520215928] [2022-12-14 10:07:19,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:19,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:20,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:20,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:20,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520215928] [2022-12-14 10:07:20,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520215928] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:20,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:20,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:07:20,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57073532] [2022-12-14 10:07:20,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:20,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 10:07:20,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:20,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 10:07:20,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:07:20,732 INFO L87 Difference]: Start difference. First operand 12091 states and 32668 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 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) [2022-12-14 10:07:21,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:21,310 INFO L93 Difference]: Finished difference Result 13861 states and 37397 transitions. [2022-12-14 10:07:21,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 10:07:21,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2022-12-14 10:07:21,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:21,335 INFO L225 Difference]: With dead ends: 13861 [2022-12-14 10:07:21,335 INFO L226 Difference]: Without dead ends: 13861 [2022-12-14 10:07:21,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:07:21,336 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 124 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:21,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 406 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 10:07:21,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13861 states. [2022-12-14 10:07:21,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13861 to 12091. [2022-12-14 10:07:21,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12091 states, 12022 states have (on average 2.7173515222092828) internal successors, (32668), 12090 states have internal predecessors, (32668), 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) [2022-12-14 10:07:21,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12091 states to 12091 states and 32668 transitions. [2022-12-14 10:07:21,565 INFO L78 Accepts]: Start accepts. Automaton has 12091 states and 32668 transitions. Word has length 52 [2022-12-14 10:07:21,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:21,565 INFO L495 AbstractCegarLoop]: Abstraction has 12091 states and 32668 transitions. [2022-12-14 10:07:21,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 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) [2022-12-14 10:07:21,566 INFO L276 IsEmpty]: Start isEmpty. Operand 12091 states and 32668 transitions. [2022-12-14 10:07:21,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 10:07:21,571 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:21,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:21,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 10:07:21,571 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:21,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:21,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1213777571, now seen corresponding path program 3 times [2022-12-14 10:07:21,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:21,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237559246] [2022-12-14 10:07:21,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:21,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:22,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:22,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237559246] [2022-12-14 10:07:22,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237559246] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:22,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:22,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:07:22,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772173014] [2022-12-14 10:07:22,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:22,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 10:07:22,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:22,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 10:07:22,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:07:22,782 INFO L87 Difference]: Start difference. First operand 12091 states and 32668 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 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) [2022-12-14 10:07:23,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:23,540 INFO L93 Difference]: Finished difference Result 13173 states and 35557 transitions. [2022-12-14 10:07:23,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:07:23,540 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2022-12-14 10:07:23,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:23,565 INFO L225 Difference]: With dead ends: 13173 [2022-12-14 10:07:23,565 INFO L226 Difference]: Without dead ends: 13173 [2022-12-14 10:07:23,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:07:23,566 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 114 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:23,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 463 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 10:07:23,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13173 states. [2022-12-14 10:07:23,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13173 to 12091. [2022-12-14 10:07:23,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12091 states, 12022 states have (on average 2.7173515222092828) internal successors, (32668), 12090 states have internal predecessors, (32668), 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) [2022-12-14 10:07:23,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12091 states to 12091 states and 32668 transitions. [2022-12-14 10:07:23,798 INFO L78 Accepts]: Start accepts. Automaton has 12091 states and 32668 transitions. Word has length 52 [2022-12-14 10:07:23,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:23,798 INFO L495 AbstractCegarLoop]: Abstraction has 12091 states and 32668 transitions. [2022-12-14 10:07:23,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 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) [2022-12-14 10:07:23,798 INFO L276 IsEmpty]: Start isEmpty. Operand 12091 states and 32668 transitions. [2022-12-14 10:07:23,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-14 10:07:23,802 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:23,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:23,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 10:07:23,802 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:23,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:23,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1644714929, now seen corresponding path program 1 times [2022-12-14 10:07:23,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:23,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285157301] [2022-12-14 10:07:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:23,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:24,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:24,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:24,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285157301] [2022-12-14 10:07:24,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285157301] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:24,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:24,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:07:24,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736374043] [2022-12-14 10:07:24,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:24,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 10:07:24,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:24,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 10:07:24,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:07:24,159 INFO L87 Difference]: Start difference. First operand 12091 states and 32668 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2022-12-14 10:07:25,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:25,575 INFO L93 Difference]: Finished difference Result 16730 states and 44358 transitions. [2022-12-14 10:07:25,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:07:25,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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 58 [2022-12-14 10:07:25,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:25,600 INFO L225 Difference]: With dead ends: 16730 [2022-12-14 10:07:25,600 INFO L226 Difference]: Without dead ends: 16730 [2022-12-14 10:07:25,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:07:25,600 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 557 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 1968 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 2249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 1968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:25,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 273 Invalid, 2249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 1968 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 10:07:25,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16730 states. [2022-12-14 10:07:25,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16730 to 12403. [2022-12-14 10:07:25,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12403 states, 12334 states have (on average 2.722231230744284) internal successors, (33576), 12402 states have internal predecessors, (33576), 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) [2022-12-14 10:07:25,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12403 states to 12403 states and 33576 transitions. [2022-12-14 10:07:25,796 INFO L78 Accepts]: Start accepts. Automaton has 12403 states and 33576 transitions. Word has length 58 [2022-12-14 10:07:25,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:25,797 INFO L495 AbstractCegarLoop]: Abstraction has 12403 states and 33576 transitions. [2022-12-14 10:07:25,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 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) [2022-12-14 10:07:25,797 INFO L276 IsEmpty]: Start isEmpty. Operand 12403 states and 33576 transitions. [2022-12-14 10:07:25,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-14 10:07:25,799 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:25,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:25,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 10:07:25,799 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:25,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:25,800 INFO L85 PathProgramCache]: Analyzing trace with hash 916001465, now seen corresponding path program 2 times [2022-12-14 10:07:25,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:25,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052492631] [2022-12-14 10:07:25,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:25,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:26,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:26,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:26,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052492631] [2022-12-14 10:07:26,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052492631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:26,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:26,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 10:07:26,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450662371] [2022-12-14 10:07:26,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:26,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 10:07:26,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:26,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 10:07:26,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-14 10:07:26,182 INFO L87 Difference]: Start difference. First operand 12403 states and 33576 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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) [2022-12-14 10:07:27,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:27,740 INFO L93 Difference]: Finished difference Result 14039 states and 37192 transitions. [2022-12-14 10:07:27,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 10:07:27,741 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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 58 [2022-12-14 10:07:27,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:27,761 INFO L225 Difference]: With dead ends: 14039 [2022-12-14 10:07:27,762 INFO L226 Difference]: Without dead ends: 14039 [2022-12-14 10:07:27,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2022-12-14 10:07:27,762 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 843 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 2240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:27,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 229 Invalid, 2240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 10:07:27,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14039 states. [2022-12-14 10:07:27,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14039 to 10191. [2022-12-14 10:07:27,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10191 states, 10124 states have (on average 2.6854998024496246) internal successors, (27188), 10190 states have internal predecessors, (27188), 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) [2022-12-14 10:07:27,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10191 states to 10191 states and 27188 transitions. [2022-12-14 10:07:27,915 INFO L78 Accepts]: Start accepts. Automaton has 10191 states and 27188 transitions. Word has length 58 [2022-12-14 10:07:27,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:27,915 INFO L495 AbstractCegarLoop]: Abstraction has 10191 states and 27188 transitions. [2022-12-14 10:07:27,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 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) [2022-12-14 10:07:27,916 INFO L276 IsEmpty]: Start isEmpty. Operand 10191 states and 27188 transitions. [2022-12-14 10:07:27,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-14 10:07:27,918 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:27,918 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:27,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 10:07:27,919 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:27,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:27,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1710693617, now seen corresponding path program 1 times [2022-12-14 10:07:27,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:27,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123033706] [2022-12-14 10:07:27,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:27,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:27,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:27,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:27,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123033706] [2022-12-14 10:07:27,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123033706] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:07:27,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515503379] [2022-12-14 10:07:27,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:27,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:27,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:07:27,975 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:07:27,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:07:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:28,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:07:28,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:07:28,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:07:28,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:07:28,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515503379] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:28,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:07:28,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 10:07:28,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225476752] [2022-12-14 10:07:28,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:28,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:07:28,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:28,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:07:28,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:07:28,138 INFO L87 Difference]: Start difference. First operand 10191 states and 27188 transitions. Second operand has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2022-12-14 10:07:28,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:28,292 INFO L93 Difference]: Finished difference Result 12274 states and 33312 transitions. [2022-12-14 10:07:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:07:28,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2022-12-14 10:07:28,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:28,310 INFO L225 Difference]: With dead ends: 12274 [2022-12-14 10:07:28,310 INFO L226 Difference]: Without dead ends: 12274 [2022-12-14 10:07:28,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:07:28,311 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 103 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:28,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 292 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:07:28,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12274 states. [2022-12-14 10:07:28,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12274 to 11214. [2022-12-14 10:07:28,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11214 states, 11148 states have (on average 2.708198780050233) internal successors, (30191), 11213 states have internal predecessors, (30191), 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) [2022-12-14 10:07:28,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11214 states to 11214 states and 30191 transitions. [2022-12-14 10:07:28,460 INFO L78 Accepts]: Start accepts. Automaton has 11214 states and 30191 transitions. Word has length 60 [2022-12-14 10:07:28,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:28,460 INFO L495 AbstractCegarLoop]: Abstraction has 11214 states and 30191 transitions. [2022-12-14 10:07:28,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2022-12-14 10:07:28,461 INFO L276 IsEmpty]: Start isEmpty. Operand 11214 states and 30191 transitions. [2022-12-14 10:07:28,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 10:07:28,463 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:28,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:28,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 10:07:28,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-12-14 10:07:28,665 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:28,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:28,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1999475189, now seen corresponding path program 1 times [2022-12-14 10:07:28,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:28,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124762982] [2022-12-14 10:07:28,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:28,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:28,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:28,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:28,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124762982] [2022-12-14 10:07:28,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124762982] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:07:28,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809277972] [2022-12-14 10:07:28,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:28,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:28,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:07:28,741 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:07:28,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 10:07:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:28,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:07:28,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:07:28,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:28,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:07:29,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:29,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809277972] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:07:29,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [367574855] [2022-12-14 10:07:29,034 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 10:07:29,036 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:07:29,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-14 10:07:29,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231313054] [2022-12-14 10:07:29,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:07:29,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 10:07:29,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:29,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 10:07:29,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:07:29,037 INFO L87 Difference]: Start difference. First operand 11214 states and 30191 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 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) [2022-12-14 10:07:29,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:29,245 INFO L93 Difference]: Finished difference Result 16802 states and 45138 transitions. [2022-12-14 10:07:29,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:07:29,245 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 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 64 [2022-12-14 10:07:29,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:29,268 INFO L225 Difference]: With dead ends: 16802 [2022-12-14 10:07:29,268 INFO L226 Difference]: Without dead ends: 16802 [2022-12-14 10:07:29,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:07:29,269 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 193 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:29,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 480 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:07:29,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16802 states. [2022-12-14 10:07:29,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16802 to 16802. [2022-12-14 10:07:29,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16802 states, 16736 states have (on average 2.6970602294455066) internal successors, (45138), 16801 states have internal predecessors, (45138), 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) [2022-12-14 10:07:29,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16802 states to 16802 states and 45138 transitions. [2022-12-14 10:07:29,485 INFO L78 Accepts]: Start accepts. Automaton has 16802 states and 45138 transitions. Word has length 64 [2022-12-14 10:07:29,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:29,485 INFO L495 AbstractCegarLoop]: Abstraction has 16802 states and 45138 transitions. [2022-12-14 10:07:29,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 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) [2022-12-14 10:07:29,485 INFO L276 IsEmpty]: Start isEmpty. Operand 16802 states and 45138 transitions. [2022-12-14 10:07:29,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-12-14 10:07:29,495 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:29,496 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:29,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 10:07:29,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:29,696 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:29,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:29,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1705296492, now seen corresponding path program 1 times [2022-12-14 10:07:29,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:29,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39347923] [2022-12-14 10:07:29,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:29,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:29,940 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-12-14 10:07:29,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:29,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39347923] [2022-12-14 10:07:29,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39347923] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:29,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:07:29,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:07:29,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002195064] [2022-12-14 10:07:29,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:29,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:07:29,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:29,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:07:29,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:07:29,942 INFO L87 Difference]: Start difference. First operand 16802 states and 45138 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-12-14 10:07:30,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:30,017 INFO L93 Difference]: Finished difference Result 5375 states and 10333 transitions. [2022-12-14 10:07:30,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:07:30,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 190 [2022-12-14 10:07:30,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:30,022 INFO L225 Difference]: With dead ends: 5375 [2022-12-14 10:07:30,022 INFO L226 Difference]: Without dead ends: 5368 [2022-12-14 10:07:30,022 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 [2022-12-14 10:07:30,023 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 107 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:30,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 139 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:07:30,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5368 states. [2022-12-14 10:07:30,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5368 to 5368. [2022-12-14 10:07:30,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5368 states, 5330 states have (on average 1.9362101313320825) internal successors, (10320), 5367 states have internal predecessors, (10320), 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) [2022-12-14 10:07:30,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5368 states to 5368 states and 10320 transitions. [2022-12-14 10:07:30,070 INFO L78 Accepts]: Start accepts. Automaton has 5368 states and 10320 transitions. Word has length 190 [2022-12-14 10:07:30,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:30,070 INFO L495 AbstractCegarLoop]: Abstraction has 5368 states and 10320 transitions. [2022-12-14 10:07:30,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-12-14 10:07:30,070 INFO L276 IsEmpty]: Start isEmpty. Operand 5368 states and 10320 transitions. [2022-12-14 10:07:30,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-12-14 10:07:30,074 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:30,074 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:30,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 10:07:30,074 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:30,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:30,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1501412479, now seen corresponding path program 1 times [2022-12-14 10:07:30,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:30,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513096973] [2022-12-14 10:07:30,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:30,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:30,273 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:30,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:30,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513096973] [2022-12-14 10:07:30,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513096973] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:07:30,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664039982] [2022-12-14 10:07:30,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:30,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:30,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:07:30,274 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:07:30,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 10:07:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:30,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 10:07:30,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:07:30,747 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:30,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:07:30,927 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:30,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664039982] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:07:30,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [984499343] [2022-12-14 10:07:30,928 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 10:07:30,929 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:07:30,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-12-14 10:07:30,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183365928] [2022-12-14 10:07:30,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:07:30,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 10:07:30,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:30,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 10:07:30,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-14 10:07:30,931 INFO L87 Difference]: Start difference. First operand 5368 states and 10320 transitions. Second operand has 13 states, 13 states have (on average 32.84615384615385) internal successors, (427), 13 states have internal predecessors, (427), 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) [2022-12-14 10:07:31,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:31,213 INFO L93 Difference]: Finished difference Result 10552 states and 20136 transitions. [2022-12-14 10:07:31,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 10:07:31,214 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 32.84615384615385) internal successors, (427), 13 states have internal predecessors, (427), 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 202 [2022-12-14 10:07:31,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:31,223 INFO L225 Difference]: With dead ends: 10552 [2022-12-14 10:07:31,223 INFO L226 Difference]: Without dead ends: 10552 [2022-12-14 10:07:31,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-14 10:07:31,224 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 535 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:31,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 624 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:07:31,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10552 states. [2022-12-14 10:07:31,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10552 to 10552. [2022-12-14 10:07:31,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10552 states, 10514 states have (on average 1.9151607380635343) internal successors, (20136), 10551 states have internal predecessors, (20136), 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) [2022-12-14 10:07:31,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10552 states to 10552 states and 20136 transitions. [2022-12-14 10:07:31,322 INFO L78 Accepts]: Start accepts. Automaton has 10552 states and 20136 transitions. Word has length 202 [2022-12-14 10:07:31,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:31,323 INFO L495 AbstractCegarLoop]: Abstraction has 10552 states and 20136 transitions. [2022-12-14 10:07:31,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 32.84615384615385) internal successors, (427), 13 states have internal predecessors, (427), 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) [2022-12-14 10:07:31,323 INFO L276 IsEmpty]: Start isEmpty. Operand 10552 states and 20136 transitions. [2022-12-14 10:07:31,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2022-12-14 10:07:31,332 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:31,332 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:31,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 10:07:31,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-12-14 10:07:31,534 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:31,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:31,535 INFO L85 PathProgramCache]: Analyzing trace with hash -397507069, now seen corresponding path program 2 times [2022-12-14 10:07:31,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:31,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802960901] [2022-12-14 10:07:31,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:31,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:32,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1846 backedges. 0 proven. 1846 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:32,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:32,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802960901] [2022-12-14 10:07:32,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802960901] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:07:32,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066447918] [2022-12-14 10:07:32,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 10:07:32,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:32,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:07:32,207 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:07:32,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 10:07:32,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 10:07:32,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 10:07:32,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-14 10:07:32,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:07:32,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 10:07:32,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:07:32,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 10:07:32,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:07:32,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:07:32,995 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:07:32,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 10:07:33,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:07:33,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:07:33,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:07:33,021 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:07:33,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-12-14 10:07:33,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1846 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1846 trivial. 0 not checked. [2022-12-14 10:07:33,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:07:33,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066447918] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:33,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:07:33,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 18 [2022-12-14 10:07:33,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460039143] [2022-12-14 10:07:33,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:33,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 10:07:33,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:33,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 10:07:33,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-12-14 10:07:33,051 INFO L87 Difference]: Start difference. First operand 10552 states and 20136 transitions. Second operand has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2022-12-14 10:07:33,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:33,939 INFO L93 Difference]: Finished difference Result 10974 states and 20903 transitions. [2022-12-14 10:07:33,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:07:33,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 454 [2022-12-14 10:07:33,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:33,947 INFO L225 Difference]: With dead ends: 10974 [2022-12-14 10:07:33,947 INFO L226 Difference]: Without dead ends: 7099 [2022-12-14 10:07:33,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-12-14 10:07:33,948 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 300 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:33,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 224 Invalid, 1548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:07:33,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7099 states. [2022-12-14 10:07:33,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7099 to 7015. [2022-12-14 10:07:34,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7015 states, 6977 states have (on average 1.938655582628637) internal successors, (13526), 7014 states have internal predecessors, (13526), 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) [2022-12-14 10:07:34,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7015 states to 7015 states and 13526 transitions. [2022-12-14 10:07:34,013 INFO L78 Accepts]: Start accepts. Automaton has 7015 states and 13526 transitions. Word has length 454 [2022-12-14 10:07:34,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:34,013 INFO L495 AbstractCegarLoop]: Abstraction has 7015 states and 13526 transitions. [2022-12-14 10:07:34,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2022-12-14 10:07:34,013 INFO L276 IsEmpty]: Start isEmpty. Operand 7015 states and 13526 transitions. [2022-12-14 10:07:34,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2022-12-14 10:07:34,018 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:34,018 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:34,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 10:07:34,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:34,220 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting t2Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:34,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:34,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1278766532, now seen corresponding path program 1 times [2022-12-14 10:07:34,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:34,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135395579] [2022-12-14 10:07:34,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:34,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1846 backedges. 0 proven. 1846 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:34,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:34,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135395579] [2022-12-14 10:07:34,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135395579] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:07:34,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791670031] [2022-12-14 10:07:34,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:34,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:34,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:07:34,988 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:07:34,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 10:07:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:35,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 2555 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-14 10:07:35,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:07:35,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1846 backedges. 0 proven. 1846 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:35,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:07:36,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1846 backedges. 0 proven. 1846 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:36,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791670031] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:07:36,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [442425758] [2022-12-14 10:07:36,452 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 10:07:36,452 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:07:36,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-12-14 10:07:36,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366059466] [2022-12-14 10:07:36,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:07:36,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 10:07:36,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:36,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 10:07:36,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-12-14 10:07:36,455 INFO L87 Difference]: Start difference. First operand 7015 states and 13526 transitions. Second operand has 25 states, 25 states have (on average 37.36) internal successors, (934), 25 states have internal predecessors, (934), 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) [2022-12-14 10:07:37,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:37,138 INFO L93 Difference]: Finished difference Result 12847 states and 24650 transitions. [2022-12-14 10:07:37,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 10:07:37,138 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 37.36) internal successors, (934), 25 states have internal predecessors, (934), 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 457 [2022-12-14 10:07:37,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:37,150 INFO L225 Difference]: With dead ends: 12847 [2022-12-14 10:07:37,150 INFO L226 Difference]: Without dead ends: 12847 [2022-12-14 10:07:37,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 925 GetRequests, 902 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-12-14 10:07:37,151 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 1203 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:37,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 1287 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 10:07:37,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12847 states. [2022-12-14 10:07:37,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12847 to 12847. [2022-12-14 10:07:37,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12847 states, 12809 states have (on average 1.924428136466547) internal successors, (24650), 12846 states have internal predecessors, (24650), 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) [2022-12-14 10:07:37,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12847 states to 12847 states and 24650 transitions. [2022-12-14 10:07:37,278 INFO L78 Accepts]: Start accepts. Automaton has 12847 states and 24650 transitions. Word has length 457 [2022-12-14 10:07:37,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:37,279 INFO L495 AbstractCegarLoop]: Abstraction has 12847 states and 24650 transitions. [2022-12-14 10:07:37,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 37.36) internal successors, (934), 25 states have internal predecessors, (934), 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) [2022-12-14 10:07:37,279 INFO L276 IsEmpty]: Start isEmpty. Operand 12847 states and 24650 transitions. [2022-12-14 10:07:37,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 962 [2022-12-14 10:07:37,293 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:37,293 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:37,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 10:07:37,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:37,495 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting t2Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:37,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:37,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1533130944, now seen corresponding path program 2 times [2022-12-14 10:07:37,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:37,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044807934] [2022-12-14 10:07:37,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:37,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:40,041 INFO L134 CoverageAnalysis]: Checked inductivity of 9598 backedges. 0 proven. 9598 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:40,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:40,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044807934] [2022-12-14 10:07:40,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044807934] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:07:40,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819910535] [2022-12-14 10:07:40,042 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 10:07:40,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:40,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:07:40,043 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:07:40,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 10:07:40,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 10:07:40,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 10:07:40,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 10:07:40,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:07:40,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 10:07:40,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 10:07:40,685 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:07:40,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-12-14 10:07:40,708 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:07:40,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 10:07:40,737 INFO L134 CoverageAnalysis]: Checked inductivity of 9598 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9598 trivial. 0 not checked. [2022-12-14 10:07:40,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:07:40,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819910535] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:40,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:07:40,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [25] total 29 [2022-12-14 10:07:40,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665198733] [2022-12-14 10:07:40,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:40,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:07:40,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:40,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:07:40,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=498, Unknown=0, NotChecked=0, Total=812 [2022-12-14 10:07:40,739 INFO L87 Difference]: Start difference. First operand 12847 states and 24650 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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) [2022-12-14 10:07:41,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:41,140 INFO L93 Difference]: Finished difference Result 13035 states and 25015 transitions. [2022-12-14 10:07:41,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:07:41,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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 961 [2022-12-14 10:07:41,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:41,154 INFO L225 Difference]: With dead ends: 13035 [2022-12-14 10:07:41,154 INFO L226 Difference]: Without dead ends: 13035 [2022-12-14 10:07:41,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 985 GetRequests, 958 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=314, Invalid=498, Unknown=0, NotChecked=0, Total=812 [2022-12-14 10:07:41,155 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 49 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:41,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 130 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 10:07:41,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13035 states. [2022-12-14 10:07:41,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13035 to 12823. [2022-12-14 10:07:41,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12823 states, 12788 states have (on average 1.923913043478261) internal successors, (24603), 12822 states have internal predecessors, (24603), 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) [2022-12-14 10:07:41,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12823 states to 12823 states and 24603 transitions. [2022-12-14 10:07:41,287 INFO L78 Accepts]: Start accepts. Automaton has 12823 states and 24603 transitions. Word has length 961 [2022-12-14 10:07:41,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:41,287 INFO L495 AbstractCegarLoop]: Abstraction has 12823 states and 24603 transitions. [2022-12-14 10:07:41,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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) [2022-12-14 10:07:41,287 INFO L276 IsEmpty]: Start isEmpty. Operand 12823 states and 24603 transitions. [2022-12-14 10:07:41,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 965 [2022-12-14 10:07:41,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:41,301 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:41,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 10:07:41,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-12-14 10:07:41,502 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:41,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:41,504 INFO L85 PathProgramCache]: Analyzing trace with hash -808039127, now seen corresponding path program 1 times [2022-12-14 10:07:41,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:41,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624802464] [2022-12-14 10:07:41,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:41,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:42,291 INFO L134 CoverageAnalysis]: Checked inductivity of 9599 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9598 trivial. 0 not checked. [2022-12-14 10:07:42,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:42,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624802464] [2022-12-14 10:07:42,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624802464] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:07:42,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766652379] [2022-12-14 10:07:42,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:42,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:42,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:07:42,293 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:07:42,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 10:07:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:43,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 5202 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:07:43,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:07:43,438 INFO L134 CoverageAnalysis]: Checked inductivity of 9599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9599 trivial. 0 not checked. [2022-12-14 10:07:43,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:07:43,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766652379] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:43,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:07:43,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 10:07:43,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776418500] [2022-12-14 10:07:43,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:43,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:07:43,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:43,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:07:43,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:07:43,440 INFO L87 Difference]: Start difference. First operand 12823 states and 24603 transitions. Second operand has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 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) [2022-12-14 10:07:43,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:43,560 INFO L93 Difference]: Finished difference Result 12799 states and 24556 transitions. [2022-12-14 10:07:43,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:07:43,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 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 964 [2022-12-14 10:07:43,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:43,579 INFO L225 Difference]: With dead ends: 12799 [2022-12-14 10:07:43,579 INFO L226 Difference]: Without dead ends: 12799 [2022-12-14 10:07:43,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 967 GetRequests, 964 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:07:43,580 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 16 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:43,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 235 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:07:43,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12799 states. [2022-12-14 10:07:43,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12799 to 12799. [2022-12-14 10:07:43,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12799 states, 12767 states have (on average 1.923396255972429) internal successors, (24556), 12798 states have internal predecessors, (24556), 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) [2022-12-14 10:07:43,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12799 states to 12799 states and 24556 transitions. [2022-12-14 10:07:43,730 INFO L78 Accepts]: Start accepts. Automaton has 12799 states and 24556 transitions. Word has length 964 [2022-12-14 10:07:43,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:43,731 INFO L495 AbstractCegarLoop]: Abstraction has 12799 states and 24556 transitions. [2022-12-14 10:07:43,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.5) internal successors, (89), 3 states have internal predecessors, (89), 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) [2022-12-14 10:07:43,731 INFO L276 IsEmpty]: Start isEmpty. Operand 12799 states and 24556 transitions. [2022-12-14 10:07:43,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 968 [2022-12-14 10:07:43,744 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:43,745 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:43,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 10:07:43,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:43,948 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting t2Err13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:43,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:43,950 INFO L85 PathProgramCache]: Analyzing trace with hash 999419886, now seen corresponding path program 1 times [2022-12-14 10:07:43,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:43,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321810710] [2022-12-14 10:07:43,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:43,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:44,761 INFO L134 CoverageAnalysis]: Checked inductivity of 9599 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9598 trivial. 0 not checked. [2022-12-14 10:07:44,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:44,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321810710] [2022-12-14 10:07:44,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321810710] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:07:44,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648379141] [2022-12-14 10:07:44,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:44,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:44,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:07:44,762 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:07:44,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 10:07:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:45,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 5208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:07:45,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:07:45,743 INFO L134 CoverageAnalysis]: Checked inductivity of 9599 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9599 trivial. 0 not checked. [2022-12-14 10:07:45,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:07:45,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648379141] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:07:45,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:07:45,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 10:07:45,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699584426] [2022-12-14 10:07:45,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:07:45,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:07:45,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:45,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:07:45,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:07:45,745 INFO L87 Difference]: Start difference. First operand 12799 states and 24556 transitions. Second operand has 3 states, 2 states have (on average 46.0) internal successors, (92), 3 states have internal predecessors, (92), 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) [2022-12-14 10:07:45,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:45,855 INFO L93 Difference]: Finished difference Result 12775 states and 24509 transitions. [2022-12-14 10:07:45,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:07:45,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 46.0) internal successors, (92), 3 states have internal predecessors, (92), 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 967 [2022-12-14 10:07:45,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:45,869 INFO L225 Difference]: With dead ends: 12775 [2022-12-14 10:07:45,869 INFO L226 Difference]: Without dead ends: 12705 [2022-12-14 10:07:45,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 967 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:07:45,869 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 16 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:45,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 234 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:07:45,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12705 states. [2022-12-14 10:07:45,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12705 to 12691. [2022-12-14 10:07:45,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12691 states, 12662 states have (on average 1.9220502290317485) internal successors, (24337), 12690 states have internal predecessors, (24337), 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) [2022-12-14 10:07:45,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12691 states to 12691 states and 24337 transitions. [2022-12-14 10:07:45,995 INFO L78 Accepts]: Start accepts. Automaton has 12691 states and 24337 transitions. Word has length 967 [2022-12-14 10:07:45,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:45,996 INFO L495 AbstractCegarLoop]: Abstraction has 12691 states and 24337 transitions. [2022-12-14 10:07:45,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 46.0) internal successors, (92), 3 states have internal predecessors, (92), 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) [2022-12-14 10:07:45,996 INFO L276 IsEmpty]: Start isEmpty. Operand 12691 states and 24337 transitions. [2022-12-14 10:07:46,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 968 [2022-12-14 10:07:46,010 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:46,010 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:46,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 10:07:46,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:46,211 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:46,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:46,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1257732521, now seen corresponding path program 1 times [2022-12-14 10:07:46,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:46,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214492869] [2022-12-14 10:07:46,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:46,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:49,209 INFO L134 CoverageAnalysis]: Checked inductivity of 9598 backedges. 0 proven. 9598 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:49,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:07:49,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214492869] [2022-12-14 10:07:49,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214492869] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:07:49,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406163119] [2022-12-14 10:07:49,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:49,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:07:49,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:07:49,211 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:07:49,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 10:07:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:07:50,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 5213 conjuncts, 24 conjunts are in the unsatisfiable core [2022-12-14 10:07:50,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:07:51,213 INFO L134 CoverageAnalysis]: Checked inductivity of 9598 backedges. 0 proven. 9598 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:51,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:07:52,451 INFO L134 CoverageAnalysis]: Checked inductivity of 9598 backedges. 0 proven. 9598 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:07:52,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406163119] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:07:52,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1165542916] [2022-12-14 10:07:52,453 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 10:07:52,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:07:52,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-12-14 10:07:52,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999892822] [2022-12-14 10:07:52,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:07:52,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-12-14 10:07:52,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:07:52,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-12-14 10:07:52,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-12-14 10:07:52,459 INFO L87 Difference]: Start difference. First operand 12691 states and 24337 transitions. Second operand has 49 states, 49 states have (on average 39.755102040816325) internal successors, (1948), 49 states have internal predecessors, (1948), 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) [2022-12-14 10:07:54,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:54,198 INFO L93 Difference]: Finished difference Result 24355 states and 46585 transitions. [2022-12-14 10:07:54,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-12-14 10:07:54,198 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 39.755102040816325) internal successors, (1948), 49 states have internal predecessors, (1948), 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 967 [2022-12-14 10:07:54,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:54,225 INFO L225 Difference]: With dead ends: 24355 [2022-12-14 10:07:54,225 INFO L226 Difference]: Without dead ends: 24355 [2022-12-14 10:07:54,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1957 GetRequests, 1910 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-12-14 10:07:54,226 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 3321 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3321 SdHoareTripleChecker+Valid, 2094 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:54,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3321 Valid, 2094 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:07:54,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24355 states. [2022-12-14 10:07:54,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24355 to 24355. [2022-12-14 10:07:54,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24355 states, 24326 states have (on average 1.9150291868782372) internal successors, (46585), 24354 states have internal predecessors, (46585), 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) [2022-12-14 10:07:54,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24355 states to 24355 states and 46585 transitions. [2022-12-14 10:07:54,495 INFO L78 Accepts]: Start accepts. Automaton has 24355 states and 46585 transitions. Word has length 967 [2022-12-14 10:07:54,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:07:54,495 INFO L495 AbstractCegarLoop]: Abstraction has 24355 states and 46585 transitions. [2022-12-14 10:07:54,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 39.755102040816325) internal successors, (1948), 49 states have internal predecessors, (1948), 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) [2022-12-14 10:07:54,496 INFO L276 IsEmpty]: Start isEmpty. Operand 24355 states and 46585 transitions. [2022-12-14 10:07:54,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1976 [2022-12-14 10:07:54,534 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:07:54,535 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:07:54,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 10:07:54,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-12-14 10:07:54,736 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:07:54,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:07:54,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1840563873, now seen corresponding path program 2 times [2022-12-14 10:07:54,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:07:54,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743048304] [2022-12-14 10:07:54,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:07:54,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:07:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 43246 backedges. 0 proven. 43246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:06,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:06,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743048304] [2022-12-14 10:08:06,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743048304] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:08:06,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405821353] [2022-12-14 10:08:06,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 10:08:06,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:08:06,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:08:06,621 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:08:06,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 10:08:07,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 10:08:07,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 10:08:07,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 10:08:07,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:08:07,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 10:08:07,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 10:08:07,890 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:08:07,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-12-14 10:08:07,931 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:08:07,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 10:08:07,977 INFO L134 CoverageAnalysis]: Checked inductivity of 43246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43246 trivial. 0 not checked. [2022-12-14 10:08:07,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:08:07,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405821353] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:07,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:08:07,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [49] total 53 [2022-12-14 10:08:07,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667825689] [2022-12-14 10:08:07,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:07,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:08:07,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:07,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:08:07,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1190, Invalid=1566, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 10:08:07,979 INFO L87 Difference]: Start difference. First operand 24355 states and 46585 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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) [2022-12-14 10:08:08,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:08,349 INFO L93 Difference]: Finished difference Result 24283 states and 46444 transitions. [2022-12-14 10:08:08,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:08:08,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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 1975 [2022-12-14 10:08:08,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:08,376 INFO L225 Difference]: With dead ends: 24283 [2022-12-14 10:08:08,376 INFO L226 Difference]: Without dead ends: 24283 [2022-12-14 10:08:08,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2023 GetRequests, 1972 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1190, Invalid=1566, Unknown=0, NotChecked=0, Total=2756 [2022-12-14 10:08:08,377 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 83 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:08,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 99 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:08:08,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24283 states. [2022-12-14 10:08:08,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24283 to 24283. [2022-12-14 10:08:08,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24283 states, 24263 states have (on average 1.9141903309566006) internal successors, (46444), 24282 states have internal predecessors, (46444), 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) [2022-12-14 10:08:08,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24283 states to 24283 states and 46444 transitions. [2022-12-14 10:08:08,629 INFO L78 Accepts]: Start accepts. Automaton has 24283 states and 46444 transitions. Word has length 1975 [2022-12-14 10:08:08,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:08,630 INFO L495 AbstractCegarLoop]: Abstraction has 24283 states and 46444 transitions. [2022-12-14 10:08:08,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 6 states have internal predecessors, (92), 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) [2022-12-14 10:08:08,630 INFO L276 IsEmpty]: Start isEmpty. Operand 24283 states and 46444 transitions. [2022-12-14 10:08:08,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1982 [2022-12-14 10:08:08,668 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:08,669 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 45, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:08:08,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-14 10:08:08,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-12-14 10:08:08,870 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting t2Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:08:08,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:08,872 INFO L85 PathProgramCache]: Analyzing trace with hash -571057211, now seen corresponding path program 1 times [2022-12-14 10:08:08,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:08,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291354492] [2022-12-14 10:08:08,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:08,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:19,982 INFO L134 CoverageAnalysis]: Checked inductivity of 43246 backedges. 0 proven. 43246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:19,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:19,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291354492] [2022-12-14 10:08:19,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291354492] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:08:19,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543306328] [2022-12-14 10:08:19,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:19,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:08:19,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:08:19,983 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:08:19,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 10:08:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:22,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 10495 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-14 10:08:22,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:08:24,099 INFO L134 CoverageAnalysis]: Checked inductivity of 43246 backedges. 0 proven. 43246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:24,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:08:27,936 INFO L134 CoverageAnalysis]: Checked inductivity of 43246 backedges. 0 proven. 43246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:08:27,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543306328] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:08:27,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [646200961] [2022-12-14 10:08:27,938 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 10:08:27,938 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:08:27,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97 [2022-12-14 10:08:27,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192689435] [2022-12-14 10:08:27,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:08:27,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-12-14 10:08:27,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:27,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-12-14 10:08:27,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2022-12-14 10:08:27,945 INFO L87 Difference]: Start difference. First operand 24283 states and 46444 transitions. Second operand has 97 states, 97 states have (on average 40.92783505154639) internal successors, (3970), 97 states have internal predecessors, (3970), 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) [2022-12-14 10:08:38,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:08:38,515 INFO L93 Difference]: Finished difference Result 47611 states and 90940 transitions. [2022-12-14 10:08:38,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-12-14 10:08:38,516 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 40.92783505154639) internal successors, (3970), 97 states have internal predecessors, (3970), 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 1981 [2022-12-14 10:08:38,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:08:38,568 INFO L225 Difference]: With dead ends: 47611 [2022-12-14 10:08:38,568 INFO L226 Difference]: Without dead ends: 47611 [2022-12-14 10:08:38,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4009 GetRequests, 3914 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2022-12-14 10:08:38,570 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 6625 mSDsluCounter, 3882 mSDsCounter, 0 mSdLazyCounter, 2454 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6625 SdHoareTripleChecker+Valid, 3993 SdHoareTripleChecker+Invalid, 2456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:08:38,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6625 Valid, 3993 Invalid, 2456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2454 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 10:08:38,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47611 states. [2022-12-14 10:08:38,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47611 to 47611. [2022-12-14 10:08:39,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47611 states, 47591 states have (on average 1.9108654997793701) internal successors, (90940), 47610 states have internal predecessors, (90940), 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) [2022-12-14 10:08:39,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47611 states to 47611 states and 90940 transitions. [2022-12-14 10:08:39,092 INFO L78 Accepts]: Start accepts. Automaton has 47611 states and 90940 transitions. Word has length 1981 [2022-12-14 10:08:39,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:39,093 INFO L495 AbstractCegarLoop]: Abstraction has 47611 states and 90940 transitions. [2022-12-14 10:08:39,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 40.92783505154639) internal successors, (3970), 97 states have internal predecessors, (3970), 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) [2022-12-14 10:08:39,093 INFO L276 IsEmpty]: Start isEmpty. Operand 47611 states and 90940 transitions. [2022-12-14 10:08:39,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3998 [2022-12-14 10:08:39,212 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:39,212 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 93, 93, 93, 93, 93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:08:39,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-14 10:08:39,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-12-14 10:08:39,413 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting t2Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:08:39,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:39,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1614582197, now seen corresponding path program 2 times [2022-12-14 10:08:39,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:39,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019464162] [2022-12-14 10:08:39,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:39,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:09:42,972 INFO L134 CoverageAnalysis]: Checked inductivity of 183118 backedges. 0 proven. 183118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:09:42,972 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:09:42,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019464162] [2022-12-14 10:09:42,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019464162] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:09:42,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002429935] [2022-12-14 10:09:42,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 10:09:42,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:09:42,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:09:42,974 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:09:42,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-14 10:09:45,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 10:09:45,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 10:09:45,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 10:09:45,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:09:45,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 10:09:45,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-14 10:09:45,350 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:09:45,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-12-14 10:09:45,402 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:09:45,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-12-14 10:09:45,474 INFO L134 CoverageAnalysis]: Checked inductivity of 183118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 183118 trivial. 0 not checked. [2022-12-14 10:09:45,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:09:45,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002429935] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:09:45,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:09:45,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [97] total 101 [2022-12-14 10:09:45,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873191602] [2022-12-14 10:09:45,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:09:45,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:09:45,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:09:45,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:09:45,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4670, Invalid=5430, Unknown=0, NotChecked=0, Total=10100 [2022-12-14 10:09:45,478 INFO L87 Difference]: Start difference. First operand 47611 states and 90940 transitions. Second operand has 6 states, 5 states have (on average 19.6) internal successors, (98), 6 states have internal predecessors, (98), 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) [2022-12-14 10:09:45,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:09:45,866 INFO L93 Difference]: Finished difference Result 47587 states and 90893 transitions. [2022-12-14 10:09:45,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:09:45,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.6) internal successors, (98), 6 states have internal predecessors, (98), 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 3997 [2022-12-14 10:09:45,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:09:45,921 INFO L225 Difference]: With dead ends: 47587 [2022-12-14 10:09:45,922 INFO L226 Difference]: Without dead ends: 47587 [2022-12-14 10:09:45,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4093 GetRequests, 3994 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=4670, Invalid=5430, Unknown=0, NotChecked=0, Total=10100 [2022-12-14 10:09:45,927 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 31 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 10:09:45,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 126 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 10:09:45,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47587 states. [2022-12-14 10:09:46,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47587 to 47587. [2022-12-14 10:09:46,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47587 states, 47570 states have (on average 1.9107210426739543) internal successors, (90893), 47586 states have internal predecessors, (90893), 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) [2022-12-14 10:09:46,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47587 states to 47587 states and 90893 transitions. [2022-12-14 10:09:46,595 INFO L78 Accepts]: Start accepts. Automaton has 47587 states and 90893 transitions. Word has length 3997 [2022-12-14 10:09:46,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:09:46,597 INFO L495 AbstractCegarLoop]: Abstraction has 47587 states and 90893 transitions. [2022-12-14 10:09:46,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.6) internal successors, (98), 6 states have internal predecessors, (98), 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) [2022-12-14 10:09:46,597 INFO L276 IsEmpty]: Start isEmpty. Operand 47587 states and 90893 transitions. [2022-12-14 10:09:46,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4004 [2022-12-14 10:09:46,718 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:09:46,721 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 93, 93, 93, 93, 93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:09:46,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-14 10:09:46,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2022-12-14 10:09:46,922 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting t2Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:09:46,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:09:46,946 INFO L85 PathProgramCache]: Analyzing trace with hash 547916150, now seen corresponding path program 1 times [2022-12-14 10:09:46,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:09:46,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339851247] [2022-12-14 10:09:46,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:09:46,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:09:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:49,571 INFO L134 CoverageAnalysis]: Checked inductivity of 183118 backedges. 0 proven. 183118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:49,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:49,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339851247] [2022-12-14 10:10:49,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339851247] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:10:49,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710798745] [2022-12-14 10:10:49,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:49,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:10:49,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:10:49,573 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:10:49,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-14 10:10:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:53,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 21035 conjuncts, 96 conjunts are in the unsatisfiable core [2022-12-14 10:10:53,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:10:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 183118 backedges. 0 proven. 183118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:57,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:11:09,919 INFO L134 CoverageAnalysis]: Checked inductivity of 183118 backedges. 0 proven. 183118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:09,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710798745] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:11:09,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [498936940] [2022-12-14 10:11:09,920 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 10:11:09,920 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 10:11:09,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 193 [2022-12-14 10:11:09,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004389740] [2022-12-14 10:11:09,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 10:11:09,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2022-12-14 10:11:09,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:09,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2022-12-14 10:11:09,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2022-12-14 10:11:09,935 INFO L87 Difference]: Start difference. First operand 47587 states and 90893 transitions. Second operand has 193 states, 193 states have (on average 41.49222797927461) internal successors, (8008), 193 states have internal predecessors, (8008), 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) [2022-12-14 10:12:26,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:12:26,684 INFO L93 Difference]: Finished difference Result 94243 states and 179885 transitions. [2022-12-14 10:12:26,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-12-14 10:12:26,686 INFO L78 Accepts]: Start accepts. Automaton has has 193 states, 193 states have (on average 41.49222797927461) internal successors, (8008), 193 states have internal predecessors, (8008), 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 4003 [2022-12-14 10:12:26,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:12:26,801 INFO L225 Difference]: With dead ends: 94243 [2022-12-14 10:12:26,801 INFO L226 Difference]: Without dead ends: 94243 [2022-12-14 10:12:26,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8101 GetRequests, 7910 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2022-12-14 10:12:26,804 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 16138 mSDsluCounter, 7836 mSDsCounter, 0 mSdLazyCounter, 4887 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16138 SdHoareTripleChecker+Valid, 7946 SdHoareTripleChecker+Invalid, 4889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-12-14 10:12:26,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16138 Valid, 7946 Invalid, 4889 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 4887 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-12-14 10:12:26,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94243 states. [2022-12-14 10:12:27,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94243 to 94243. [2022-12-14 10:12:27,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94243 states, 94226 states have (on average 1.9090802963088744) internal successors, (179885), 94242 states have internal predecessors, (179885), 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) [2022-12-14 10:12:27,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94243 states to 94243 states and 179885 transitions. [2022-12-14 10:12:27,894 INFO L78 Accepts]: Start accepts. Automaton has 94243 states and 179885 transitions. Word has length 4003 [2022-12-14 10:12:27,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:12:27,896 INFO L495 AbstractCegarLoop]: Abstraction has 94243 states and 179885 transitions. [2022-12-14 10:12:27,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 193 states have (on average 41.49222797927461) internal successors, (8008), 193 states have internal predecessors, (8008), 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) [2022-12-14 10:12:27,897 INFO L276 IsEmpty]: Start isEmpty. Operand 94243 states and 179885 transitions. [2022-12-14 10:12:28,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8036 [2022-12-14 10:12:28,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:12:28,302 INFO L195 NwaCegarLoop]: trace histogram [190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 190, 189, 189, 189, 189, 189, 189, 189, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:12:28,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-14 10:12:28,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21699ae0-8f6c-4268-9016-e354496c37c2/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:12:28,503 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting t2Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 10:12:28,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:12:28,507 INFO L85 PathProgramCache]: Analyzing trace with hash -878195370, now seen corresponding path program 2 times [2022-12-14 10:12:28,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:12:28,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557588534] [2022-12-14 10:12:28,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:12:28,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:12:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat