./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/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_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/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_089b29c0-3826-4457-828e-eeaad8ee98e4/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 bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca --- 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 09:37:20,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:37:20,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:37:20,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:37:20,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:37:20,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:37:20,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:37:20,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:37:20,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:37:20,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:37:20,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:37:20,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:37:20,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:37:20,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:37:20,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:37:20,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:37:20,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:37:20,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:37:20,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:37:20,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:37:20,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:37:20,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:37:20,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:37:20,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:37:20,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:37:20,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:37:20,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:37:20,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:37:20,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:37:20,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:37:20,317 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:37:20,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:37:20,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:37:20,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:37:20,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:37:20,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:37:20,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:37:20,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:37:20,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:37:20,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:37:20,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:37:20,322 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 09:37:20,343 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:37:20,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:37:20,343 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:37:20,344 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:37:20,351 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:37:20,351 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:37:20,351 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:37:20,351 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:37:20,351 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:37:20,352 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:37:20,352 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:37:20,352 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:37:20,352 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:37:20,352 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:37:20,352 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:37:20,353 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:37:20,353 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:37:20,353 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:37:20,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:37:20,354 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:37:20,354 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:37:20,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:37:20,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:37:20,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:37:20,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:37:20,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:37:20,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:37:20,355 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 09:37:20,355 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:37:20,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:37:20,355 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:37:20,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:37:20,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:37:20,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:37:20,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:37:20,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:37:20,357 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:37:20,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:37:20,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:37:20,357 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:37:20,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:37:20,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:37:20,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:37:20,358 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_089b29c0-3826-4457-828e-eeaad8ee98e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca [2022-12-14 09:37:20,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:37:20,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:37:20,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:37:20,552 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:37:20,552 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:37:20,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2022-12-14 09:37:23,226 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:37:23,475 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:37:23,476 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2022-12-14 09:37:23,490 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/data/970b1796f/08ccae00aa7d47708d2bfd37009eb3ad/FLAGab5740133 [2022-12-14 09:37:23,504 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/data/970b1796f/08ccae00aa7d47708d2bfd37009eb3ad [2022-12-14 09:37:23,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:37:23,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:37:23,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:37:23,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:37:23,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:37:23,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:37:23" (1/1) ... [2022-12-14 09:37:23,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b85f852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:23, skipping insertion in model container [2022-12-14 09:37:23,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:37:23" (1/1) ... [2022-12-14 09:37:23,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:37:23,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:37:23,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:37:23,989 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:37:24,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:37:24,097 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:37:24,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:24 WrapperNode [2022-12-14 09:37:24,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:37:24,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:37:24,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:37:24,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:37:24,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:24" (1/1) ... [2022-12-14 09:37:24,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:24" (1/1) ... [2022-12-14 09:37:24,156 INFO L138 Inliner]: procedures = 370, calls = 29, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 226 [2022-12-14 09:37:24,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:37:24,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:37:24,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:37:24,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:37:24,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:24" (1/1) ... [2022-12-14 09:37:24,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:24" (1/1) ... [2022-12-14 09:37:24,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:24" (1/1) ... [2022-12-14 09:37:24,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:24" (1/1) ... [2022-12-14 09:37:24,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:24" (1/1) ... [2022-12-14 09:37:24,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:24" (1/1) ... [2022-12-14 09:37:24,200 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:24" (1/1) ... [2022-12-14 09:37:24,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:24" (1/1) ... [2022-12-14 09:37:24,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:37:24,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:37:24,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:37:24,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:37:24,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:24" (1/1) ... [2022-12-14 09:37:24,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:37:24,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:37:24,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:37:24,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:37:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:37:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:37:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:37:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:37:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:37:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 09:37:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:37:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:37:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:37:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 09:37:24,272 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 09:37:24,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:37:24,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:37:24,274 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 09:37:24,412 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:37:24,414 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:37:24,813 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:37:24,821 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:37:24,821 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 09:37:24,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:37:24 BoogieIcfgContainer [2022-12-14 09:37:24,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:37:24,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:37:24,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:37:24,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:37:24,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:37:23" (1/3) ... [2022-12-14 09:37:24,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e753c02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:37:24, skipping insertion in model container [2022-12-14 09:37:24,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:37:24" (2/3) ... [2022-12-14 09:37:24,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e753c02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:37:24, skipping insertion in model container [2022-12-14 09:37:24,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:37:24" (3/3) ... [2022-12-14 09:37:24,832 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_18-nested_rc.i [2022-12-14 09:37:24,840 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 09:37:24,850 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:37:24,850 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-12-14 09:37:24,850 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 09:37:24,935 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 09:37:24,967 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:37:24,978 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 273 places, 273 transitions, 551 flow [2022-12-14 09:37:24,981 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 273 places, 273 transitions, 551 flow [2022-12-14 09:37:24,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 273 places, 273 transitions, 551 flow [2022-12-14 09:37:25,049 INFO L130 PetriNetUnfolder]: 4/272 cut-off events. [2022-12-14 09:37:25,049 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 09:37:25,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 272 events. 4/272 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 146. Up to 2 conditions per place. [2022-12-14 09:37:25,056 INFO L119 LiptonReduction]: Number of co-enabled transitions 6512 [2022-12-14 09:37:46,378 WARN L233 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 114 DAG size of output: 112 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:38:11,282 WARN L233 SmtUtils]: Spent 6.84s on a formula simplification that was a NOOP. DAG size: 154 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:38:21,385 WARN L233 SmtUtils]: Spent 8.46s on a formula simplification that was a NOOP. DAG size: 154 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:38:36,530 WARN L233 SmtUtils]: Spent 13.48s on a formula simplification. DAG size of input: 149 DAG size of output: 145 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:38:42,124 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification that was a NOOP. DAG size: 137 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:38:56,156 WARN L233 SmtUtils]: Spent 14.03s on a formula simplification. DAG size of input: 149 DAG size of output: 145 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:39:01,675 WARN L233 SmtUtils]: Spent 5.52s on a formula simplification that was a NOOP. DAG size: 137 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:40:19,173 WARN L233 SmtUtils]: Spent 1.09m on a formula simplification. DAG size of input: 194 DAG size of output: 188 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:40:42,264 WARN L233 SmtUtils]: Spent 23.09s on a formula simplification that was a NOOP. DAG size: 172 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:41:54,715 WARN L233 SmtUtils]: Spent 1.21m on a formula simplification. DAG size of input: 194 DAG size of output: 188 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:42:20,836 WARN L233 SmtUtils]: Spent 26.12s on a formula simplification that was a NOOP. DAG size: 172 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:44:07,659 WARN L233 SmtUtils]: Spent 1.78m on a formula simplification that was a NOOP. DAG size: 301 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:45:11,119 WARN L233 SmtUtils]: Spent 1.06m on a formula simplification that was a NOOP. DAG size: 295 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:46:27,013 WARN L233 SmtUtils]: Spent 1.26m on a formula simplification that was a NOOP. DAG size: 307 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:48:01,615 WARN L233 SmtUtils]: Spent 1.58m on a formula simplification that was a NOOP. DAG size: 301 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 09:48:01,620 INFO L134 LiptonReduction]: Checked pairs total: 43571 [2022-12-14 09:48:01,620 INFO L136 LiptonReduction]: Total number of compositions: 241 [2022-12-14 09:48:01,627 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 82 places, 79 transitions, 163 flow [2022-12-14 09:48:01,666 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1056 states, 1020 states have (on average 1.9941176470588236) internal successors, (2034), 1055 states have internal predecessors, (2034), 0 states have call successors, (0), 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 09:48:01,682 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:48:01,685 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;@7427473c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:48:01,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-12-14 09:48:01,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 1056 states, 1020 states have (on average 1.9941176470588236) internal successors, (2034), 1055 states have internal predecessors, (2034), 0 states have call successors, (0), 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 09:48:01,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 09:48:01,693 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:48:01,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 09:48:01,694 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:48:01,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:48:01,699 INFO L85 PathProgramCache]: Analyzing trace with hash 28672, now seen corresponding path program 1 times [2022-12-14 09:48:01,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:48:01,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928031537] [2022-12-14 09:48:01,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:01,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:48:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:01,826 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 09:48:01,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:48:01,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928031537] [2022-12-14 09:48:01,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928031537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:48:01,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:48:01,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:48:01,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72927542] [2022-12-14 09:48:01,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:48:01,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:48:01,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:01,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:48:01,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:48:01,851 INFO L87 Difference]: Start difference. First operand has 1056 states, 1020 states have (on average 1.9941176470588236) internal successors, (2034), 1055 states have internal predecessors, (2034), 0 states have call successors, (0), 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 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 09:48:02,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:48:02,414 INFO L93 Difference]: Finished difference Result 1047 states and 2025 transitions. [2022-12-14 09:48:02,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:48:02,416 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2022-12-14 09:48:02,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:48:02,432 INFO L225 Difference]: With dead ends: 1047 [2022-12-14 09:48:02,432 INFO L226 Difference]: Without dead ends: 1047 [2022-12-14 09:48:02,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:48:02,436 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:48:02,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 09:48:02,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2022-12-14 09:48:02,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1047. [2022-12-14 09:48:02,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1020 states have (on average 1.9852941176470589) internal successors, (2025), 1046 states have internal predecessors, (2025), 0 states have call successors, (0), 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 09:48:02,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 2025 transitions. [2022-12-14 09:48:02,506 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 2025 transitions. Word has length 2 [2022-12-14 09:48:02,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:48:02,506 INFO L495 AbstractCegarLoop]: Abstraction has 1047 states and 2025 transitions. [2022-12-14 09:48:02,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 09:48:02,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 2025 transitions. [2022-12-14 09:48:02,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 09:48:02,507 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:48:02,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:48:02,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:48:02,508 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:48:02,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:48:02,508 INFO L85 PathProgramCache]: Analyzing trace with hash -770384322, now seen corresponding path program 1 times [2022-12-14 09:48:02,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:48:02,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601084450] [2022-12-14 09:48:02,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:02,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:48:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:02,825 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 09:48:02,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:48:02,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601084450] [2022-12-14 09:48:02,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601084450] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:48:02,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:48:02,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:48:02,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404196719] [2022-12-14 09:48:02,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:48:02,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:48:02,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:02,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:48:02,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:48:02,828 INFO L87 Difference]: Start difference. First operand 1047 states and 2025 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 09:48:04,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:48:04,172 INFO L93 Difference]: Finished difference Result 1048 states and 2026 transitions. [2022-12-14 09:48:04,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:48:04,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 09:48:04,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:48:04,177 INFO L225 Difference]: With dead ends: 1048 [2022-12-14 09:48:04,177 INFO L226 Difference]: Without dead ends: 1048 [2022-12-14 09:48:04,178 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 09:48:04,179 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:48:04,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 09:48:04,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2022-12-14 09:48:04,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1048. [2022-12-14 09:48:04,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 1021 states have (on average 1.9843290891283056) internal successors, (2026), 1047 states have internal predecessors, (2026), 0 states have call successors, (0), 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 09:48:04,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 2026 transitions. [2022-12-14 09:48:04,207 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 2026 transitions. Word has length 10 [2022-12-14 09:48:04,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:48:04,208 INFO L495 AbstractCegarLoop]: Abstraction has 1048 states and 2026 transitions. [2022-12-14 09:48:04,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 09:48:04,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 2026 transitions. [2022-12-14 09:48:04,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 09:48:04,208 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:48:04,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:48:04,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:48:04,209 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:48:04,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:48:04,210 INFO L85 PathProgramCache]: Analyzing trace with hash -927130564, now seen corresponding path program 1 times [2022-12-14 09:48:04,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:48:04,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702474304] [2022-12-14 09:48:04,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:04,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:48:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:04,511 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 09:48:04,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:48:04,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702474304] [2022-12-14 09:48:04,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702474304] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:48:04,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369830096] [2022-12-14 09:48:04,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:04,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:48:04,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:48:04,513 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:48:04,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:48:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:04,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 09:48:04,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:48:04,828 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 09:48:04,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:48:04,841 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 09:48:04,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369830096] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:48:04,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1912435561] [2022-12-14 09:48:04,847 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 09:48:04,848 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:48:04,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-14 09:48:04,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434112630] [2022-12-14 09:48:04,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:48:04,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:48:04,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:04,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:48:04,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:48:04,850 INFO L87 Difference]: Start difference. First operand 1048 states and 2026 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:48:07,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:48:07,070 INFO L93 Difference]: Finished difference Result 1051 states and 2029 transitions. [2022-12-14 09:48:07,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:48:07,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 09:48:07,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:48:07,073 INFO L225 Difference]: With dead ends: 1051 [2022-12-14 09:48:07,073 INFO L226 Difference]: Without dead ends: 1051 [2022-12-14 09:48:07,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 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 09:48:07,074 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:48:07,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 09:48:07,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2022-12-14 09:48:07,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 1051. [2022-12-14 09:48:07,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 1024 states have (on average 1.9814453125) internal successors, (2029), 1050 states have internal predecessors, (2029), 0 states have call successors, (0), 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 09:48:07,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 2029 transitions. [2022-12-14 09:48:07,103 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 2029 transitions. Word has length 11 [2022-12-14 09:48:07,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:48:07,103 INFO L495 AbstractCegarLoop]: Abstraction has 1051 states and 2029 transitions. [2022-12-14 09:48:07,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:48:07,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 2029 transitions. [2022-12-14 09:48:07,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 09:48:07,104 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:48:07,104 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:48:07,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:48:07,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:48:07,306 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:48:07,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:48:07,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1496542654, now seen corresponding path program 2 times [2022-12-14 09:48:07,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:48:07,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142622498] [2022-12-14 09:48:07,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:07,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:48:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:08,491 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 09:48:08,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:48:08,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142622498] [2022-12-14 09:48:08,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142622498] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:48:08,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:48:08,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:48:08,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987400782] [2022-12-14 09:48:08,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:48:08,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:48:08,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:08,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:48:08,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:48:08,493 INFO L87 Difference]: Start difference. First operand 1051 states and 2029 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 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 09:48:09,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:48:11,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:48:11,348 INFO L93 Difference]: Finished difference Result 1839 states and 3546 transitions. [2022-12-14 09:48:11,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:48:11,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 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 14 [2022-12-14 09:48:11,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:48:11,353 INFO L225 Difference]: With dead ends: 1839 [2022-12-14 09:48:11,353 INFO L226 Difference]: Without dead ends: 1839 [2022-12-14 09:48:11,354 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 09:48:11,354 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:48:11,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 34 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 09:48:11,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2022-12-14 09:48:11,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1199. [2022-12-14 09:48:11,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1199 states, 1172 states have (on average 1.9803754266211604) internal successors, (2321), 1198 states have internal predecessors, (2321), 0 states have call successors, (0), 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 09:48:11,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 2321 transitions. [2022-12-14 09:48:11,395 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 2321 transitions. Word has length 14 [2022-12-14 09:48:11,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:48:11,395 INFO L495 AbstractCegarLoop]: Abstraction has 1199 states and 2321 transitions. [2022-12-14 09:48:11,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 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 09:48:11,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 2321 transitions. [2022-12-14 09:48:11,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 09:48:11,397 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:48:11,397 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:48:11,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:48:11,397 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:48:11,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:48:11,397 INFO L85 PathProgramCache]: Analyzing trace with hash -175326054, now seen corresponding path program 1 times [2022-12-14 09:48:11,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:48:11,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401621799] [2022-12-14 09:48:11,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:11,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:48:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:11,781 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:48:11,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:48:11,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401621799] [2022-12-14 09:48:11,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401621799] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:48:11,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581341569] [2022-12-14 09:48:11,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:11,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:48:11,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:48:11,782 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:48:11,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:48:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:12,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 1285 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 09:48:12,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:48:12,180 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:48:12,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:48:12,224 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:48:12,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581341569] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:48:12,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1944720983] [2022-12-14 09:48:12,225 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 09:48:12,226 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:48:12,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-14 09:48:12,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052290701] [2022-12-14 09:48:12,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:48:12,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 09:48:12,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:12,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 09:48:12,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-14 09:48:12,227 INFO L87 Difference]: Start difference. First operand 1199 states and 2321 transitions. Second operand has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:48:16,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:48:16,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:48:16,170 INFO L93 Difference]: Finished difference Result 1205 states and 2327 transitions. [2022-12-14 09:48:16,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 09:48:16,171 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-12-14 09:48:16,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:48:16,174 INFO L225 Difference]: With dead ends: 1205 [2022-12-14 09:48:16,174 INFO L226 Difference]: Without dead ends: 1205 [2022-12-14 09:48:16,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-14 09:48:16,175 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:48:16,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 09:48:16,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2022-12-14 09:48:16,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1205. [2022-12-14 09:48:16,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 1178 states have (on average 1.9753820033955858) internal successors, (2327), 1204 states have internal predecessors, (2327), 0 states have call successors, (0), 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 09:48:16,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 2327 transitions. [2022-12-14 09:48:16,194 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 2327 transitions. Word has length 15 [2022-12-14 09:48:16,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:48:16,194 INFO L495 AbstractCegarLoop]: Abstraction has 1205 states and 2327 transitions. [2022-12-14 09:48:16,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 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 09:48:16,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 2327 transitions. [2022-12-14 09:48:16,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 09:48:16,195 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:48:16,195 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:48:16,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:48:16,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_089b29c0-3826-4457-828e-eeaad8ee98e4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:48:16,396 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:48:16,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:48:16,396 INFO L85 PathProgramCache]: Analyzing trace with hash -168831654, now seen corresponding path program 2 times [2022-12-14 09:48:16,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:48:16,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48421794] [2022-12-14 09:48:16,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:16,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:48:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:17,137 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:48:17,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:48:17,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48421794] [2022-12-14 09:48:17,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48421794] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:48:17,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:48:17,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:48:17,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823670995] [2022-12-14 09:48:17,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:48:17,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:48:17,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:17,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:48:17,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:48:17,139 INFO L87 Difference]: Start difference. First operand 1205 states and 2327 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 09:48:19,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:48:19,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:48:19,405 INFO L93 Difference]: Finished difference Result 1314 states and 2540 transitions. [2022-12-14 09:48:19,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:48:19,405 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 21 [2022-12-14 09:48:19,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:48:19,415 INFO L225 Difference]: With dead ends: 1314 [2022-12-14 09:48:19,415 INFO L226 Difference]: Without dead ends: 1314 [2022-12-14 09:48:19,415 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 09:48:19,416 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 52 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:48:19,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 64 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 09:48:19,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2022-12-14 09:48:19,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1289. [2022-12-14 09:48:19,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1262 states have (on average 1.973851030110935) internal successors, (2491), 1288 states have internal predecessors, (2491), 0 states have call successors, (0), 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 09:48:19,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 2491 transitions. [2022-12-14 09:48:19,440 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 2491 transitions. Word has length 21 [2022-12-14 09:48:19,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:48:19,440 INFO L495 AbstractCegarLoop]: Abstraction has 1289 states and 2491 transitions. [2022-12-14 09:48:19,440 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 09:48:19,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 2491 transitions. [2022-12-14 09:48:19,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 09:48:19,442 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:48:19,442 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:48:19,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:48:19,442 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:48:19,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:48:19,443 INFO L85 PathProgramCache]: Analyzing trace with hash -145645777, now seen corresponding path program 1 times [2022-12-14 09:48:19,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:48:19,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412766749] [2022-12-14 09:48:19,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:19,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:48:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:22,641 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:48:22,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:48:22,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412766749] [2022-12-14 09:48:22,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412766749] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:48:22,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:48:22,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:48:22,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989212596] [2022-12-14 09:48:22,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:48:22,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 09:48:22,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:22,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 09:48:22,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-14 09:48:22,642 INFO L87 Difference]: Start difference. First operand 1289 states and 2491 transitions. Second operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:48:24,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:48:24,125 INFO L93 Difference]: Finished difference Result 1518 states and 2893 transitions. [2022-12-14 09:48:24,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 09:48:24,125 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 09:48:24,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:48:24,128 INFO L225 Difference]: With dead ends: 1518 [2022-12-14 09:48:24,128 INFO L226 Difference]: Without dead ends: 1518 [2022-12-14 09:48:24,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2022-12-14 09:48:24,129 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 303 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:48:24,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 39 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 09:48:24,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2022-12-14 09:48:24,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1166. [2022-12-14 09:48:24,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1166 states, 1143 states have (on average 1.9641294838145231) internal successors, (2245), 1165 states have internal predecessors, (2245), 0 states have call successors, (0), 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 09:48:24,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 2245 transitions. [2022-12-14 09:48:24,147 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 2245 transitions. Word has length 24 [2022-12-14 09:48:24,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:48:24,147 INFO L495 AbstractCegarLoop]: Abstraction has 1166 states and 2245 transitions. [2022-12-14 09:48:24,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:48:24,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 2245 transitions. [2022-12-14 09:48:24,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 09:48:24,148 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:48:24,148 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:48:24,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:48:24,148 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:48:24,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:48:24,148 INFO L85 PathProgramCache]: Analyzing trace with hash 174102861, now seen corresponding path program 1 times [2022-12-14 09:48:24,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:48:24,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744854185] [2022-12-14 09:48:24,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:24,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:48:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:25,461 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:48:25,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:48:25,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744854185] [2022-12-14 09:48:25,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744854185] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:48:25,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:48:25,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:48:25,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733488170] [2022-12-14 09:48:25,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:48:25,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 09:48:25,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:25,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 09:48:25,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-14 09:48:25,463 INFO L87 Difference]: Start difference. First operand 1166 states and 2245 transitions. Second operand has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:48:28,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:48:28,681 INFO L93 Difference]: Finished difference Result 1212 states and 2298 transitions. [2022-12-14 09:48:28,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 09:48:28,682 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 09:48:28,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:48:28,684 INFO L225 Difference]: With dead ends: 1212 [2022-12-14 09:48:28,684 INFO L226 Difference]: Without dead ends: 1212 [2022-12-14 09:48:28,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-12-14 09:48:28,685 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 227 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:48:28,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 155 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 09:48:28,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2022-12-14 09:48:28,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1136. [2022-12-14 09:48:28,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1113 states have (on average 1.963162623539982) internal successors, (2185), 1135 states have internal predecessors, (2185), 0 states have call successors, (0), 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 09:48:28,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 2185 transitions. [2022-12-14 09:48:28,706 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 2185 transitions. Word has length 24 [2022-12-14 09:48:28,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:48:28,706 INFO L495 AbstractCegarLoop]: Abstraction has 1136 states and 2185 transitions. [2022-12-14 09:48:28,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:48:28,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 2185 transitions. [2022-12-14 09:48:28,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 09:48:28,707 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:48:28,707 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:48:28,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:48:28,708 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:48:28,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:48:28,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1331081389, now seen corresponding path program 1 times [2022-12-14 09:48:28,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:48:28,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221440844] [2022-12-14 09:48:28,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:28,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:48:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:29,526 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:48:29,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:48:29,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221440844] [2022-12-14 09:48:29,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221440844] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:48:29,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:48:29,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:48:29,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184423475] [2022-12-14 09:48:29,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:48:29,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:48:29,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:29,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:48:29,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:48:29,527 INFO L87 Difference]: Start difference. First operand 1136 states and 2185 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:48:31,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:48:31,690 INFO L93 Difference]: Finished difference Result 1283 states and 2475 transitions. [2022-12-14 09:48:31,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:48:31,691 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-12-14 09:48:31,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:48:31,694 INFO L225 Difference]: With dead ends: 1283 [2022-12-14 09:48:31,694 INFO L226 Difference]: Without dead ends: 1283 [2022-12-14 09:48:31,694 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 09:48:31,695 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 60 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:48:31,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 43 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 09:48:31,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2022-12-14 09:48:31,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1283. [2022-12-14 09:48:31,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1260 states have (on average 1.9642857142857142) internal successors, (2475), 1282 states have internal predecessors, (2475), 0 states have call successors, (0), 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 09:48:31,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 2475 transitions. [2022-12-14 09:48:31,709 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 2475 transitions. Word has length 26 [2022-12-14 09:48:31,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:48:31,709 INFO L495 AbstractCegarLoop]: Abstraction has 1283 states and 2475 transitions. [2022-12-14 09:48:31,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:48:31,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 2475 transitions. [2022-12-14 09:48:31,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 09:48:31,710 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:48:31,710 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:48:31,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:48:31,710 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:48:31,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:48:31,711 INFO L85 PathProgramCache]: Analyzing trace with hash -615063996, now seen corresponding path program 1 times [2022-12-14 09:48:31,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:48:31,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843394798] [2022-12-14 09:48:31,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:31,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:48:31,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:32,289 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:48:32,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:48:32,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843394798] [2022-12-14 09:48:32,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843394798] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:48:32,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:48:32,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:48:32,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144717848] [2022-12-14 09:48:32,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:48:32,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:48:32,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:32,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:48:32,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:48:32,291 INFO L87 Difference]: Start difference. First operand 1283 states and 2475 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 09:48:34,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:48:34,184 INFO L93 Difference]: Finished difference Result 1363 states and 2631 transitions. [2022-12-14 09:48:34,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:48:34,184 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 27 [2022-12-14 09:48:34,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:48:34,187 INFO L225 Difference]: With dead ends: 1363 [2022-12-14 09:48:34,187 INFO L226 Difference]: Without dead ends: 1363 [2022-12-14 09:48:34,187 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 09:48:34,187 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 44 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:48:34,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 69 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 09:48:34,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2022-12-14 09:48:34,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1363. [2022-12-14 09:48:34,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1340 states have (on average 1.9634328358208955) internal successors, (2631), 1362 states have internal predecessors, (2631), 0 states have call successors, (0), 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 09:48:34,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 2631 transitions. [2022-12-14 09:48:34,202 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 2631 transitions. Word has length 27 [2022-12-14 09:48:34,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:48:34,202 INFO L495 AbstractCegarLoop]: Abstraction has 1363 states and 2631 transitions. [2022-12-14 09:48:34,202 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 09:48:34,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 2631 transitions. [2022-12-14 09:48:34,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:48:34,203 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:48:34,203 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:48:34,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:48:34,203 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:48:34,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:48:34,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1876178344, now seen corresponding path program 1 times [2022-12-14 09:48:34,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:48:34,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586896029] [2022-12-14 09:48:34,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:34,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:48:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:36,532 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:48:36,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:48:36,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586896029] [2022-12-14 09:48:36,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586896029] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:48:36,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:48:36,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:48:36,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71531966] [2022-12-14 09:48:36,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:48:36,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 09:48:36,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:36,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 09:48:36,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:48:36,533 INFO L87 Difference]: Start difference. First operand 1363 states and 2631 transitions. Second operand has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 09:48:39,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:48:39,389 INFO L93 Difference]: Finished difference Result 2130 states and 4144 transitions. [2022-12-14 09:48:39,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 09:48:39,389 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 30 [2022-12-14 09:48:39,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:48:39,403 INFO L225 Difference]: With dead ends: 2130 [2022-12-14 09:48:39,403 INFO L226 Difference]: Without dead ends: 2130 [2022-12-14 09:48:39,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=372, Unknown=0, NotChecked=0, Total=552 [2022-12-14 09:48:39,404 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 233 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 1561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:48:39,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 143 Invalid, 1561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 09:48:39,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2022-12-14 09:48:39,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1375. [2022-12-14 09:48:39,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1375 states, 1352 states have (on average 1.9637573964497042) internal successors, (2655), 1374 states have internal predecessors, (2655), 0 states have call successors, (0), 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 09:48:39,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 2655 transitions. [2022-12-14 09:48:39,429 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 2655 transitions. Word has length 30 [2022-12-14 09:48:39,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:48:39,429 INFO L495 AbstractCegarLoop]: Abstraction has 1375 states and 2655 transitions. [2022-12-14 09:48:39,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 09:48:39,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 2655 transitions. [2022-12-14 09:48:39,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:48:39,430 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:48:39,430 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:48:39,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:48:39,430 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:48:39,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:48:39,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1564763194, now seen corresponding path program 2 times [2022-12-14 09:48:39,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:48:39,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530849291] [2022-12-14 09:48:39,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:39,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:48:39,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:41,718 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:48:41,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:48:41,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530849291] [2022-12-14 09:48:41,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530849291] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:48:41,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:48:41,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:48:41,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176098392] [2022-12-14 09:48:41,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:48:41,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 09:48:41,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:41,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 09:48:41,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:48:41,719 INFO L87 Difference]: Start difference. First operand 1375 states and 2655 transitions. Second operand has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 09:48:45,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:48:45,982 INFO L93 Difference]: Finished difference Result 2188 states and 4260 transitions. [2022-12-14 09:48:45,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 09:48:45,982 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 30 [2022-12-14 09:48:45,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:48:45,987 INFO L225 Difference]: With dead ends: 2188 [2022-12-14 09:48:45,987 INFO L226 Difference]: Without dead ends: 2188 [2022-12-14 09:48:45,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=215, Invalid=435, Unknown=0, NotChecked=0, Total=650 [2022-12-14 09:48:45,987 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 243 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:48:45,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 146 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 09:48:45,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2022-12-14 09:48:46,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 1394. [2022-12-14 09:48:46,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1371 states have (on average 1.9649890590809629) internal successors, (2694), 1393 states have internal predecessors, (2694), 0 states have call successors, (0), 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 09:48:46,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 2694 transitions. [2022-12-14 09:48:46,011 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 2694 transitions. Word has length 30 [2022-12-14 09:48:46,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:48:46,012 INFO L495 AbstractCegarLoop]: Abstraction has 1394 states and 2694 transitions. [2022-12-14 09:48:46,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 09:48:46,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 2694 transitions. [2022-12-14 09:48:46,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:48:46,013 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:48:46,013 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:48:46,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 09:48:46,013 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:48:46,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:48:46,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1925551540, now seen corresponding path program 3 times [2022-12-14 09:48:46,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:48:46,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040025329] [2022-12-14 09:48:46,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:46,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:48:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:49,203 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:48:49,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:48:49,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040025329] [2022-12-14 09:48:49,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040025329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:48:49,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:48:49,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:48:49,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272780824] [2022-12-14 09:48:49,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:48:49,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 09:48:49,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:49,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 09:48:49,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:48:49,205 INFO L87 Difference]: Start difference. First operand 1394 states and 2694 transitions. Second operand has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 09:48:53,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:48:53,868 INFO L93 Difference]: Finished difference Result 2256 states and 4396 transitions. [2022-12-14 09:48:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 09:48:53,868 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 30 [2022-12-14 09:48:53,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:48:53,873 INFO L225 Difference]: With dead ends: 2256 [2022-12-14 09:48:53,873 INFO L226 Difference]: Without dead ends: 2256 [2022-12-14 09:48:53,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=240, Invalid=516, Unknown=0, NotChecked=0, Total=756 [2022-12-14 09:48:53,873 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 256 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 1653 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:48:53,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 145 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1653 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-12-14 09:48:53,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2022-12-14 09:48:53,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 1413. [2022-12-14 09:48:53,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1390 states have (on average 1.9661870503597123) internal successors, (2733), 1412 states have internal predecessors, (2733), 0 states have call successors, (0), 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 09:48:53,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 2733 transitions. [2022-12-14 09:48:53,891 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 2733 transitions. Word has length 30 [2022-12-14 09:48:53,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:48:53,891 INFO L495 AbstractCegarLoop]: Abstraction has 1413 states and 2733 transitions. [2022-12-14 09:48:53,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 09:48:53,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 2733 transitions. [2022-12-14 09:48:53,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:48:53,891 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:48:53,891 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:48:53,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 09:48:53,892 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:48:53,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:48:53,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1171555654, now seen corresponding path program 4 times [2022-12-14 09:48:53,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:48:53,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641045620] [2022-12-14 09:48:53,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:48:53,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:48:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:48:56,542 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:48:56,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:48:56,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641045620] [2022-12-14 09:48:56,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641045620] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:48:56,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:48:56,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:48:56,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710443905] [2022-12-14 09:48:56,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:48:56,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 09:48:56,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:48:56,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 09:48:56,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:48:56,543 INFO L87 Difference]: Start difference. First operand 1413 states and 2733 transitions. Second operand has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 09:49:00,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:49:00,908 INFO L93 Difference]: Finished difference Result 2324 states and 4532 transitions. [2022-12-14 09:49:00,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-14 09:49:00,909 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 30 [2022-12-14 09:49:00,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:49:00,913 INFO L225 Difference]: With dead ends: 2324 [2022-12-14 09:49:00,913 INFO L226 Difference]: Without dead ends: 2324 [2022-12-14 09:49:00,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=353, Invalid=769, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 09:49:00,914 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 318 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:49:00,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 144 Invalid, 1813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 09:49:00,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states. [2022-12-14 09:49:00,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 1432. [2022-12-14 09:49:00,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1409 states have (on average 1.9673527324343505) internal successors, (2772), 1431 states have internal predecessors, (2772), 0 states have call successors, (0), 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 09:49:00,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2772 transitions. [2022-12-14 09:49:00,932 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2772 transitions. Word has length 30 [2022-12-14 09:49:00,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:49:00,932 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 2772 transitions. [2022-12-14 09:49:00,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 09:49:00,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2772 transitions. [2022-12-14 09:49:00,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:49:00,933 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:49:00,933 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:49:00,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 09:49:00,934 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:49:00,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:49:00,934 INFO L85 PathProgramCache]: Analyzing trace with hash -212277188, now seen corresponding path program 1 times [2022-12-14 09:49:00,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:49:00,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040029058] [2022-12-14 09:49:00,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:00,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:49:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:02,880 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:49:02,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:49:02,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040029058] [2022-12-14 09:49:02,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040029058] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:49:02,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:49:02,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:49:02,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816820092] [2022-12-14 09:49:02,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:49:02,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 09:49:02,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:49:02,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 09:49:02,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:49:02,881 INFO L87 Difference]: Start difference. First operand 1432 states and 2772 transitions. Second operand has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 09:49:05,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:49:05,396 INFO L93 Difference]: Finished difference Result 3036 states and 5934 transitions. [2022-12-14 09:49:05,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 09:49:05,396 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 30 [2022-12-14 09:49:05,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:49:05,401 INFO L225 Difference]: With dead ends: 3036 [2022-12-14 09:49:05,401 INFO L226 Difference]: Without dead ends: 3036 [2022-12-14 09:49:05,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-12-14 09:49:05,402 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 311 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:49:05,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 161 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 09:49:05,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3036 states. [2022-12-14 09:49:05,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3036 to 1486. [2022-12-14 09:49:05,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1463 states have (on average 1.9685577580314422) internal successors, (2880), 1485 states have internal predecessors, (2880), 0 states have call successors, (0), 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 09:49:05,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 2880 transitions. [2022-12-14 09:49:05,436 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 2880 transitions. Word has length 30 [2022-12-14 09:49:05,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:49:05,436 INFO L495 AbstractCegarLoop]: Abstraction has 1486 states and 2880 transitions. [2022-12-14 09:49:05,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 09:49:05,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 2880 transitions. [2022-12-14 09:49:05,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:49:05,438 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:49:05,438 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:49:05,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 09:49:05,438 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:49:05,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:49:05,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1289317672, now seen corresponding path program 5 times [2022-12-14 09:49:05,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:49:05,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809218636] [2022-12-14 09:49:05,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:05,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:49:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:49:08,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:49:08,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809218636] [2022-12-14 09:49:08,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809218636] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:49:08,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:49:08,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:49:08,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536643891] [2022-12-14 09:49:08,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:49:08,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 09:49:08,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:49:08,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 09:49:08,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:49:08,056 INFO L87 Difference]: Start difference. First operand 1486 states and 2880 transitions. Second operand has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 09:49:11,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:49:11,588 INFO L93 Difference]: Finished difference Result 2916 states and 5695 transitions. [2022-12-14 09:49:11,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-14 09:49:11,589 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 30 [2022-12-14 09:49:11,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:49:11,594 INFO L225 Difference]: With dead ends: 2916 [2022-12-14 09:49:11,595 INFO L226 Difference]: Without dead ends: 2916 [2022-12-14 09:49:11,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=372, Invalid=888, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 09:49:11,596 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 408 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:49:11,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 158 Invalid, 1536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 09:49:11,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2022-12-14 09:49:11,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 1549. [2022-12-14 09:49:11,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1549 states, 1526 states have (on average 1.9705111402359108) internal successors, (3007), 1548 states have internal predecessors, (3007), 0 states have call successors, (0), 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 09:49:11,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1549 states to 1549 states and 3007 transitions. [2022-12-14 09:49:11,619 INFO L78 Accepts]: Start accepts. Automaton has 1549 states and 3007 transitions. Word has length 30 [2022-12-14 09:49:11,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:49:11,619 INFO L495 AbstractCegarLoop]: Abstraction has 1549 states and 3007 transitions. [2022-12-14 09:49:11,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 10 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 09:49:11,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1549 states and 3007 transitions. [2022-12-14 09:49:11,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:49:11,620 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:49:11,620 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:49:11,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 09:49:11,620 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:49:11,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:49:11,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1625712354, now seen corresponding path program 2 times [2022-12-14 09:49:11,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:49:11,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899089946] [2022-12-14 09:49:11,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:11,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:49:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:14,012 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:49:14,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:49:14,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899089946] [2022-12-14 09:49:14,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899089946] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:49:14,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:49:14,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:49:14,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022514651] [2022-12-14 09:49:14,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:49:14,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:49:14,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:49:14,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:49:14,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:49:14,014 INFO L87 Difference]: Start difference. First operand 1549 states and 3007 transitions. Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 09:49:17,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:49:17,771 INFO L93 Difference]: Finished difference Result 3082 states and 6026 transitions. [2022-12-14 09:49:17,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 09:49:17,771 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 30 [2022-12-14 09:49:17,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:49:17,775 INFO L225 Difference]: With dead ends: 3082 [2022-12-14 09:49:17,775 INFO L226 Difference]: Without dead ends: 3082 [2022-12-14 09:49:17,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2022-12-14 09:49:17,776 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 325 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:49:17,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 199 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 09:49:17,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3082 states. [2022-12-14 09:49:17,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3082 to 1521. [2022-12-14 09:49:17,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1498 states have (on average 1.9672897196261683) internal successors, (2947), 1520 states have internal predecessors, (2947), 0 states have call successors, (0), 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 09:49:17,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 2947 transitions. [2022-12-14 09:49:17,808 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 2947 transitions. Word has length 30 [2022-12-14 09:49:17,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:49:17,808 INFO L495 AbstractCegarLoop]: Abstraction has 1521 states and 2947 transitions. [2022-12-14 09:49:17,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 09:49:17,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 2947 transitions. [2022-12-14 09:49:17,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:49:17,809 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:49:17,809 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:49:17,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 09:49:17,809 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:49:17,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:49:17,810 INFO L85 PathProgramCache]: Analyzing trace with hash -833610027, now seen corresponding path program 1 times [2022-12-14 09:49:17,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:49:17,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109981388] [2022-12-14 09:49:17,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:17,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:49:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:18,984 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:49:18,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:49:18,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109981388] [2022-12-14 09:49:18,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109981388] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:49:18,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:49:18,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:49:18,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283425272] [2022-12-14 09:49:18,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:49:18,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 09:49:18,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:49:18,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 09:49:18,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-14 09:49:18,985 INFO L87 Difference]: Start difference. First operand 1521 states and 2947 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 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 09:49:20,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:49:20,797 INFO L93 Difference]: Finished difference Result 1551 states and 2970 transitions. [2022-12-14 09:49:20,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 09:49:20,797 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 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 30 [2022-12-14 09:49:20,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:49:20,800 INFO L225 Difference]: With dead ends: 1551 [2022-12-14 09:49:20,800 INFO L226 Difference]: Without dead ends: 1551 [2022-12-14 09:49:20,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-12-14 09:49:20,800 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 198 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:49:20,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 159 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 09:49:20,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2022-12-14 09:49:20,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1473. [2022-12-14 09:49:20,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 1450 states have (on average 1.966206896551724) internal successors, (2851), 1472 states have internal predecessors, (2851), 0 states have call successors, (0), 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 09:49:20,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 2851 transitions. [2022-12-14 09:49:20,815 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 2851 transitions. Word has length 30 [2022-12-14 09:49:20,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:49:20,815 INFO L495 AbstractCegarLoop]: Abstraction has 1473 states and 2851 transitions. [2022-12-14 09:49:20,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 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 09:49:20,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 2851 transitions. [2022-12-14 09:49:20,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:49:20,815 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:49:20,816 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:49:20,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 09:49:20,816 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:49:20,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:49:20,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1922816350, now seen corresponding path program 3 times [2022-12-14 09:49:20,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:49:20,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089513987] [2022-12-14 09:49:20,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:20,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:49:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:23,695 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:49:23,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:49:23,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089513987] [2022-12-14 09:49:23,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089513987] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:49:23,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:49:23,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:49:23,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484348013] [2022-12-14 09:49:23,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:49:23,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:49:23,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:49:23,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:49:23,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:49:23,696 INFO L87 Difference]: Start difference. First operand 1473 states and 2851 transitions. Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 09:49:26,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:49:26,155 INFO L93 Difference]: Finished difference Result 1557 states and 2995 transitions. [2022-12-14 09:49:26,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 09:49:26,156 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 30 [2022-12-14 09:49:26,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:49:26,158 INFO L225 Difference]: With dead ends: 1557 [2022-12-14 09:49:26,158 INFO L226 Difference]: Without dead ends: 1557 [2022-12-14 09:49:26,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2022-12-14 09:49:26,158 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 259 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:49:26,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 135 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-14 09:49:26,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2022-12-14 09:49:26,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1484. [2022-12-14 09:49:26,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1461 states have (on average 1.9664613278576317) internal successors, (2873), 1483 states have internal predecessors, (2873), 0 states have call successors, (0), 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 09:49:26,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 2873 transitions. [2022-12-14 09:49:26,173 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 2873 transitions. Word has length 30 [2022-12-14 09:49:26,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:49:26,174 INFO L495 AbstractCegarLoop]: Abstraction has 1484 states and 2873 transitions. [2022-12-14 09:49:26,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 09:49:26,174 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 2873 transitions. [2022-12-14 09:49:26,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:49:26,174 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:49:26,174 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:49:26,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 09:49:26,174 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:49:26,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:49:26,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1926197528, now seen corresponding path program 4 times [2022-12-14 09:49:26,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:49:26,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74110692] [2022-12-14 09:49:26,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:26,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:49:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:29,071 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:49:29,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:49:29,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74110692] [2022-12-14 09:49:29,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74110692] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:49:29,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:49:29,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:49:29,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128307944] [2022-12-14 09:49:29,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:49:29,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:49:29,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:49:29,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:49:29,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:49:29,072 INFO L87 Difference]: Start difference. First operand 1484 states and 2873 transitions. Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 09:49:32,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:49:32,740 INFO L93 Difference]: Finished difference Result 1591 states and 3063 transitions. [2022-12-14 09:49:32,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-14 09:49:32,741 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 30 [2022-12-14 09:49:32,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:49:32,744 INFO L225 Difference]: With dead ends: 1591 [2022-12-14 09:49:32,744 INFO L226 Difference]: Without dead ends: 1591 [2022-12-14 09:49:32,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2022-12-14 09:49:32,745 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 253 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:49:32,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 144 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-12-14 09:49:32,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1591 states. [2022-12-14 09:49:32,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1591 to 1498. [2022-12-14 09:49:32,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1475 states have (on average 1.9667796610169492) internal successors, (2901), 1497 states have internal predecessors, (2901), 0 states have call successors, (0), 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 09:49:32,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 2901 transitions. [2022-12-14 09:49:32,764 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 2901 transitions. Word has length 30 [2022-12-14 09:49:32,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:49:32,764 INFO L495 AbstractCegarLoop]: Abstraction has 1498 states and 2901 transitions. [2022-12-14 09:49:32,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 09:49:32,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 2901 transitions. [2022-12-14 09:49:32,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:49:32,766 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:49:32,766 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:49:32,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 09:49:32,766 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:49:32,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:49:32,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1707985984, now seen corresponding path program 5 times [2022-12-14 09:49:32,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:49:32,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943116123] [2022-12-14 09:49:32,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:32,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:49:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:35,928 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:49:35,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:49:35,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943116123] [2022-12-14 09:49:35,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943116123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:49:35,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:49:35,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:49:35,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119213167] [2022-12-14 09:49:35,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:49:35,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:49:35,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:49:35,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:49:35,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:49:35,930 INFO L87 Difference]: Start difference. First operand 1498 states and 2901 transitions. Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 09:49:40,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:49:40,578 INFO L93 Difference]: Finished difference Result 1629 states and 3139 transitions. [2022-12-14 09:49:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 09:49:40,578 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 30 [2022-12-14 09:49:40,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:49:40,580 INFO L225 Difference]: With dead ends: 1629 [2022-12-14 09:49:40,580 INFO L226 Difference]: Without dead ends: 1629 [2022-12-14 09:49:40,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2022-12-14 09:49:40,581 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 246 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:49:40,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 146 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-12-14 09:49:40,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2022-12-14 09:49:40,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1524. [2022-12-14 09:49:40,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 1501 states have (on average 1.9680213191205862) internal successors, (2954), 1523 states have internal predecessors, (2954), 0 states have call successors, (0), 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 09:49:40,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 2954 transitions. [2022-12-14 09:49:40,595 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 2954 transitions. Word has length 30 [2022-12-14 09:49:40,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:49:40,595 INFO L495 AbstractCegarLoop]: Abstraction has 1524 states and 2954 transitions. [2022-12-14 09:49:40,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 09:49:40,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 2954 transitions. [2022-12-14 09:49:40,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:49:40,596 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:49:40,596 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:49:40,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 09:49:40,596 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:49:40,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:49:40,596 INFO L85 PathProgramCache]: Analyzing trace with hash 329591942, now seen corresponding path program 6 times [2022-12-14 09:49:40,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:49:40,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607580881] [2022-12-14 09:49:40,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:40,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:49:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:43,999 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:49:43,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:49:43,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607580881] [2022-12-14 09:49:43,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607580881] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:49:43,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:49:43,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:49:43,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771285219] [2022-12-14 09:49:43,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:49:43,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:49:43,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:49:44,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:49:44,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:49:44,000 INFO L87 Difference]: Start difference. First operand 1524 states and 2954 transitions. Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 09:49:47,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:49:47,787 INFO L93 Difference]: Finished difference Result 1674 states and 3229 transitions. [2022-12-14 09:49:47,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 09:49:47,787 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 30 [2022-12-14 09:49:47,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:49:47,789 INFO L225 Difference]: With dead ends: 1674 [2022-12-14 09:49:47,789 INFO L226 Difference]: Without dead ends: 1674 [2022-12-14 09:49:47,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2022-12-14 09:49:47,790 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 240 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:49:47,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 134 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 09:49:47,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2022-12-14 09:49:47,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1539. [2022-12-14 09:49:47,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1516 states have (on average 1.9689973614775726) internal successors, (2985), 1538 states have internal predecessors, (2985), 0 states have call successors, (0), 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 09:49:47,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 2985 transitions. [2022-12-14 09:49:47,806 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 2985 transitions. Word has length 30 [2022-12-14 09:49:47,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:49:47,807 INFO L495 AbstractCegarLoop]: Abstraction has 1539 states and 2985 transitions. [2022-12-14 09:49:47,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 09:49:47,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 2985 transitions. [2022-12-14 09:49:47,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:49:47,815 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:49:47,815 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:49:47,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 09:49:47,815 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:49:47,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:49:47,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1065306738, now seen corresponding path program 7 times [2022-12-14 09:49:47,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:49:47,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110870575] [2022-12-14 09:49:47,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:47,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:49:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:50,252 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:49:50,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:49:50,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110870575] [2022-12-14 09:49:50,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110870575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:49:50,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:49:50,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:49:50,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444299820] [2022-12-14 09:49:50,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:49:50,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:49:50,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:49:50,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:49:50,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:49:50,253 INFO L87 Difference]: Start difference. First operand 1539 states and 2985 transitions. Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 09:49:53,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:49:53,702 INFO L93 Difference]: Finished difference Result 2016 states and 3892 transitions. [2022-12-14 09:49:53,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 09:49:53,703 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 30 [2022-12-14 09:49:53,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:49:53,705 INFO L225 Difference]: With dead ends: 2016 [2022-12-14 09:49:53,705 INFO L226 Difference]: Without dead ends: 2016 [2022-12-14 09:49:53,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2022-12-14 09:49:53,706 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 283 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:49:53,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 178 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-12-14 09:49:53,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2016 states. [2022-12-14 09:49:53,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2016 to 1459. [2022-12-14 09:49:53,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1437 states have (on average 1.966597077244259) internal successors, (2826), 1458 states have internal predecessors, (2826), 0 states have call successors, (0), 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 09:49:53,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 2826 transitions. [2022-12-14 09:49:53,722 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 2826 transitions. Word has length 30 [2022-12-14 09:49:53,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:49:53,723 INFO L495 AbstractCegarLoop]: Abstraction has 1459 states and 2826 transitions. [2022-12-14 09:49:53,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 09:49:53,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 2826 transitions. [2022-12-14 09:49:53,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:49:53,723 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:49:53,723 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:49:53,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 09:49:53,723 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:49:53,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:49:53,724 INFO L85 PathProgramCache]: Analyzing trace with hash 807476602, now seen corresponding path program 6 times [2022-12-14 09:49:53,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:49:53,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450443687] [2022-12-14 09:49:53,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:49:53,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:49:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:49:57,239 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:49:57,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:49:57,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450443687] [2022-12-14 09:49:57,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450443687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:49:57,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:49:57,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:49:57,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856599619] [2022-12-14 09:49:57,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:49:57,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:49:57,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:49:57,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:49:57,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:49:57,241 INFO L87 Difference]: Start difference. First operand 1459 states and 2826 transitions. Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 09:50:00,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:50:00,575 INFO L93 Difference]: Finished difference Result 1987 states and 3835 transitions. [2022-12-14 09:50:00,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-14 09:50:00,576 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 30 [2022-12-14 09:50:00,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:50:00,578 INFO L225 Difference]: With dead ends: 1987 [2022-12-14 09:50:00,578 INFO L226 Difference]: Without dead ends: 1987 [2022-12-14 09:50:00,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=351, Invalid=909, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 09:50:00,579 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 389 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 1569 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:50:00,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 164 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1569 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 09:50:00,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2022-12-14 09:50:00,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1200. [2022-12-14 09:50:00,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1200 states, 1181 states have (on average 1.951735817104149) internal successors, (2305), 1199 states have internal predecessors, (2305), 0 states have call successors, (0), 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 09:50:00,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 2305 transitions. [2022-12-14 09:50:00,594 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 2305 transitions. Word has length 30 [2022-12-14 09:50:00,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:50:00,594 INFO L495 AbstractCegarLoop]: Abstraction has 1200 states and 2305 transitions. [2022-12-14 09:50:00,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 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 09:50:00,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 2305 transitions. [2022-12-14 09:50:00,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 09:50:00,595 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:50:00,595 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:50:00,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 09:50:00,595 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:50:00,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:50:00,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1978371791, now seen corresponding path program 1 times [2022-12-14 09:50:00,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:50:00,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200146659] [2022-12-14 09:50:00,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:50:00,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:50:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:50:01,332 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:50:01,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:50:01,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200146659] [2022-12-14 09:50:01,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200146659] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:50:01,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:50:01,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:50:01,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394128720] [2022-12-14 09:50:01,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:50:01,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:50:01,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:50:01,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:50:01,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:50:01,334 INFO L87 Difference]: Start difference. First operand 1200 states and 2305 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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 09:50:03,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:50:03,082 INFO L93 Difference]: Finished difference Result 1177 states and 2260 transitions. [2022-12-14 09:50:03,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:50:03,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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 31 [2022-12-14 09:50:03,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:50:03,083 INFO L225 Difference]: With dead ends: 1177 [2022-12-14 09:50:03,083 INFO L226 Difference]: Without dead ends: 1177 [2022-12-14 09:50:03,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:50:03,084 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 32 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:50:03,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 53 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 09:50:03,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-12-14 09:50:03,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1177. [2022-12-14 09:50:03,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 1160 states have (on average 1.9482758620689655) internal successors, (2260), 1176 states have internal predecessors, (2260), 0 states have call successors, (0), 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 09:50:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 2260 transitions. [2022-12-14 09:50:03,094 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 2260 transitions. Word has length 31 [2022-12-14 09:50:03,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:50:03,094 INFO L495 AbstractCegarLoop]: Abstraction has 1177 states and 2260 transitions. [2022-12-14 09:50:03,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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 09:50:03,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 2260 transitions. [2022-12-14 09:50:03,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 09:50:03,095 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:50:03,095 INFO L195 NwaCegarLoop]: trace histogram [10, 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 09:50:03,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 09:50:03,095 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:50:03,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:50:03,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1289451072, now seen corresponding path program 1 times [2022-12-14 09:50:03,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:50:03,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106957628] [2022-12-14 09:50:03,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:50:03,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:50:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:50:03,670 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:50:03,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:50:03,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106957628] [2022-12-14 09:50:03,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106957628] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:50:03,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:50:03,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:50:03,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411735432] [2022-12-14 09:50:03,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:50:03,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:50:03,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:50:03,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:50:03,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:50:03,672 INFO L87 Difference]: Start difference. First operand 1177 states and 2260 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 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 09:50:06,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:50:08,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:50:08,217 INFO L93 Difference]: Finished difference Result 1442 states and 2740 transitions. [2022-12-14 09:50:08,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:50:08,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 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 32 [2022-12-14 09:50:08,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:50:08,219 INFO L225 Difference]: With dead ends: 1442 [2022-12-14 09:50:08,219 INFO L226 Difference]: Without dead ends: 1404 [2022-12-14 09:50:08,219 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 09:50:08,220 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 63 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:50:08,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 47 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 09:50:08,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2022-12-14 09:50:08,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1281. [2022-12-14 09:50:08,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1264 states have (on average 1.9462025316455696) internal successors, (2460), 1280 states have internal predecessors, (2460), 0 states have call successors, (0), 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 09:50:08,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 2460 transitions. [2022-12-14 09:50:08,233 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 2460 transitions. Word has length 32 [2022-12-14 09:50:08,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:50:08,233 INFO L495 AbstractCegarLoop]: Abstraction has 1281 states and 2460 transitions. [2022-12-14 09:50:08,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 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 09:50:08,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 2460 transitions. [2022-12-14 09:50:08,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 09:50:08,233 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:50:08,233 INFO L195 NwaCegarLoop]: trace histogram [10, 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 09:50:08,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 09:50:08,233 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:50:08,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:50:08,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1997637011, now seen corresponding path program 1 times [2022-12-14 09:50:08,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:50:08,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846898800] [2022-12-14 09:50:08,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:50:08,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:50:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:50:11,118 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:50:11,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:50:11,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846898800] [2022-12-14 09:50:11,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846898800] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:50:11,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:50:11,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:50:11,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818222789] [2022-12-14 09:50:11,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:50:11,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 09:50:11,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:50:11,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 09:50:11,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:50:11,120 INFO L87 Difference]: Start difference. First operand 1281 states and 2460 transitions. Second operand has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:14,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:50:14,076 INFO L93 Difference]: Finished difference Result 2457 states and 4761 transitions. [2022-12-14 09:50:14,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 09:50:14,077 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:14,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:50:14,081 INFO L225 Difference]: With dead ends: 2457 [2022-12-14 09:50:14,081 INFO L226 Difference]: Without dead ends: 2457 [2022-12-14 09:50:14,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2022-12-14 09:50:14,081 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 288 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:50:14,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 169 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 09:50:14,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2457 states. [2022-12-14 09:50:14,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2457 to 1315. [2022-12-14 09:50:14,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 1298 states have (on average 1.9476117103235748) internal successors, (2528), 1314 states have internal predecessors, (2528), 0 states have call successors, (0), 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 09:50:14,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 2528 transitions. [2022-12-14 09:50:14,098 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 2528 transitions. Word has length 34 [2022-12-14 09:50:14,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:50:14,098 INFO L495 AbstractCegarLoop]: Abstraction has 1315 states and 2528 transitions. [2022-12-14 09:50:14,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:14,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 2528 transitions. [2022-12-14 09:50:14,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 09:50:14,099 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:50:14,099 INFO L195 NwaCegarLoop]: trace histogram [10, 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 09:50:14,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 09:50:14,099 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:50:14,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:50:14,099 INFO L85 PathProgramCache]: Analyzing trace with hash -2139451781, now seen corresponding path program 2 times [2022-12-14 09:50:14,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:50:14,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56066369] [2022-12-14 09:50:14,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:50:14,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:50:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:50:16,423 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:50:16,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:50:16,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56066369] [2022-12-14 09:50:16,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56066369] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:50:16,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:50:16,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:50:16,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196550692] [2022-12-14 09:50:16,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:50:16,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 09:50:16,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:50:16,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 09:50:16,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:50:16,425 INFO L87 Difference]: Start difference. First operand 1315 states and 2528 transitions. Second operand has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:19,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:50:19,440 INFO L93 Difference]: Finished difference Result 2429 states and 4706 transitions. [2022-12-14 09:50:19,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 09:50:19,440 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:19,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:50:19,443 INFO L225 Difference]: With dead ends: 2429 [2022-12-14 09:50:19,443 INFO L226 Difference]: Without dead ends: 2429 [2022-12-14 09:50:19,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2022-12-14 09:50:19,443 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 242 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:50:19,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 178 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 09:50:19,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2022-12-14 09:50:19,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 1314. [2022-12-14 09:50:19,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 1297 states have (on average 1.9475713184271395) internal successors, (2526), 1313 states have internal predecessors, (2526), 0 states have call successors, (0), 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 09:50:19,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 2526 transitions. [2022-12-14 09:50:19,459 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 2526 transitions. Word has length 34 [2022-12-14 09:50:19,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:50:19,459 INFO L495 AbstractCegarLoop]: Abstraction has 1314 states and 2526 transitions. [2022-12-14 09:50:19,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:19,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 2526 transitions. [2022-12-14 09:50:19,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 09:50:19,460 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:50:19,460 INFO L195 NwaCegarLoop]: trace histogram [10, 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 09:50:19,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 09:50:19,460 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:50:19,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:50:19,460 INFO L85 PathProgramCache]: Analyzing trace with hash 2082824301, now seen corresponding path program 3 times [2022-12-14 09:50:19,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:50:19,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784015846] [2022-12-14 09:50:19,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:50:19,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:50:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:50:22,072 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:50:22,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:50:22,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784015846] [2022-12-14 09:50:22,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784015846] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:50:22,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:50:22,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:50:22,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105757466] [2022-12-14 09:50:22,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:50:22,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 09:50:22,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:50:22,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 09:50:22,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:50:22,073 INFO L87 Difference]: Start difference. First operand 1314 states and 2526 transitions. Second operand has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:26,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:50:26,319 INFO L93 Difference]: Finished difference Result 2534 states and 4915 transitions. [2022-12-14 09:50:26,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 09:50:26,319 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:26,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:50:26,322 INFO L225 Difference]: With dead ends: 2534 [2022-12-14 09:50:26,322 INFO L226 Difference]: Without dead ends: 2534 [2022-12-14 09:50:26,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=556, Unknown=0, NotChecked=0, Total=756 [2022-12-14 09:50:26,323 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 343 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:50:26,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 159 Invalid, 1085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 09:50:26,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2534 states. [2022-12-14 09:50:26,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2534 to 1313. [2022-12-14 09:50:26,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1313 states, 1296 states have (on average 1.9475308641975309) internal successors, (2524), 1312 states have internal predecessors, (2524), 0 states have call successors, (0), 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 09:50:26,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 2524 transitions. [2022-12-14 09:50:26,338 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 2524 transitions. Word has length 34 [2022-12-14 09:50:26,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:50:26,338 INFO L495 AbstractCegarLoop]: Abstraction has 1313 states and 2524 transitions. [2022-12-14 09:50:26,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:26,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 2524 transitions. [2022-12-14 09:50:26,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 09:50:26,338 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:50:26,338 INFO L195 NwaCegarLoop]: trace histogram [10, 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 09:50:26,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 09:50:26,339 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:50:26,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:50:26,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1256730235, now seen corresponding path program 4 times [2022-12-14 09:50:26,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:50:26,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626497581] [2022-12-14 09:50:26,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:50:26,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:50:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:50:28,671 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:50:28,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:50:28,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626497581] [2022-12-14 09:50:28,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626497581] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:50:28,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:50:28,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:50:28,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386041729] [2022-12-14 09:50:28,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:50:28,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:50:28,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:50:28,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:50:28,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:50:28,672 INFO L87 Difference]: Start difference. First operand 1313 states and 2524 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:32,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:50:32,450 INFO L93 Difference]: Finished difference Result 2794 states and 5435 transitions. [2022-12-14 09:50:32,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-14 09:50:32,451 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:32,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:50:32,454 INFO L225 Difference]: With dead ends: 2794 [2022-12-14 09:50:32,454 INFO L226 Difference]: Without dead ends: 2794 [2022-12-14 09:50:32,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2022-12-14 09:50:32,454 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 331 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:50:32,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 206 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 09:50:32,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2022-12-14 09:50:32,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 1335. [2022-12-14 09:50:32,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 1318 states have (on average 1.9484066767830046) internal successors, (2568), 1334 states have internal predecessors, (2568), 0 states have call successors, (0), 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 09:50:32,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 2568 transitions. [2022-12-14 09:50:32,470 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 2568 transitions. Word has length 34 [2022-12-14 09:50:32,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:50:32,471 INFO L495 AbstractCegarLoop]: Abstraction has 1335 states and 2568 transitions. [2022-12-14 09:50:32,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:32,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 2568 transitions. [2022-12-14 09:50:32,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 09:50:32,471 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:50:32,471 INFO L195 NwaCegarLoop]: trace histogram [10, 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 09:50:32,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 09:50:32,471 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:50:32,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:50:32,472 INFO L85 PathProgramCache]: Analyzing trace with hash 794939131, now seen corresponding path program 5 times [2022-12-14 09:50:32,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:50:32,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933137923] [2022-12-14 09:50:32,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:50:32,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:50:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:50:34,609 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:50:34,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:50:34,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933137923] [2022-12-14 09:50:34,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933137923] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:50:34,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:50:34,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:50:34,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894023802] [2022-12-14 09:50:34,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:50:34,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:50:34,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:50:34,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:50:34,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:50:34,611 INFO L87 Difference]: Start difference. First operand 1335 states and 2568 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:37,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:50:37,575 INFO L93 Difference]: Finished difference Result 2791 states and 5429 transitions. [2022-12-14 09:50:37,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 09:50:37,575 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:37,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:50:37,578 INFO L225 Difference]: With dead ends: 2791 [2022-12-14 09:50:37,578 INFO L226 Difference]: Without dead ends: 2791 [2022-12-14 09:50:37,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2022-12-14 09:50:37,579 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 334 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:50:37,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 205 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-12-14 09:50:37,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2022-12-14 09:50:37,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 1328. [2022-12-14 09:50:37,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 1311 states have (on average 1.9481311975591151) internal successors, (2554), 1327 states have internal predecessors, (2554), 0 states have call successors, (0), 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 09:50:37,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 2554 transitions. [2022-12-14 09:50:37,597 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 2554 transitions. Word has length 34 [2022-12-14 09:50:37,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:50:37,597 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 2554 transitions. [2022-12-14 09:50:37,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:37,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 2554 transitions. [2022-12-14 09:50:37,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 09:50:37,598 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:50:37,598 INFO L195 NwaCegarLoop]: trace histogram [10, 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 09:50:37,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 09:50:37,598 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:50:37,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:50:37,599 INFO L85 PathProgramCache]: Analyzing trace with hash 101232965, now seen corresponding path program 6 times [2022-12-14 09:50:37,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:50:37,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250011895] [2022-12-14 09:50:37,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:50:37,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:50:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:50:40,468 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:50:40,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:50:40,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250011895] [2022-12-14 09:50:40,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250011895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:50:40,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:50:40,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:50:40,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083538406] [2022-12-14 09:50:40,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:50:40,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:50:40,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:50:40,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:50:40,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:50:40,470 INFO L87 Difference]: Start difference. First operand 1328 states and 2554 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:42,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:50:45,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:50:45,729 INFO L93 Difference]: Finished difference Result 2849 states and 5545 transitions. [2022-12-14 09:50:45,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-14 09:50:45,730 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:45,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:50:45,733 INFO L225 Difference]: With dead ends: 2849 [2022-12-14 09:50:45,734 INFO L226 Difference]: Without dead ends: 2849 [2022-12-14 09:50:45,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=280, Invalid=776, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 09:50:45,734 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 367 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 1909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:50:45,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 212 Invalid, 1909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-12-14 09:50:45,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2022-12-14 09:50:45,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 1321. [2022-12-14 09:50:45,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1304 states have (on average 1.9478527607361964) internal successors, (2540), 1320 states have internal predecessors, (2540), 0 states have call successors, (0), 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 09:50:45,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 2540 transitions. [2022-12-14 09:50:45,751 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 2540 transitions. Word has length 34 [2022-12-14 09:50:45,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:50:45,751 INFO L495 AbstractCegarLoop]: Abstraction has 1321 states and 2540 transitions. [2022-12-14 09:50:45,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:45,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 2540 transitions. [2022-12-14 09:50:45,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 09:50:45,752 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:50:45,752 INFO L195 NwaCegarLoop]: trace histogram [10, 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 09:50:45,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-14 09:50:45,752 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:50:45,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:50:45,752 INFO L85 PathProgramCache]: Analyzing trace with hash -2021660965, now seen corresponding path program 7 times [2022-12-14 09:50:45,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:50:45,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034324746] [2022-12-14 09:50:45,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:50:45,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:50:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:50:48,522 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:50:48,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:50:48,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034324746] [2022-12-14 09:50:48,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034324746] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:50:48,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:50:48,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:50:48,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936092219] [2022-12-14 09:50:48,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:50:48,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:50:48,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:50:48,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:50:48,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:50:48,524 INFO L87 Difference]: Start difference. First operand 1321 states and 2540 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:52,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:50:52,832 INFO L93 Difference]: Finished difference Result 1454 states and 2783 transitions. [2022-12-14 09:50:52,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-14 09:50:52,832 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:52,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:50:52,835 INFO L225 Difference]: With dead ends: 1454 [2022-12-14 09:50:52,835 INFO L226 Difference]: Without dead ends: 1454 [2022-12-14 09:50:52,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=354, Unknown=0, NotChecked=0, Total=506 [2022-12-14 09:50:52,836 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 243 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:50:52,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 139 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 09:50:52,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2022-12-14 09:50:52,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1321. [2022-12-14 09:50:52,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1304 states have (on average 1.9478527607361964) internal successors, (2540), 1320 states have internal predecessors, (2540), 0 states have call successors, (0), 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 09:50:52,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 2540 transitions. [2022-12-14 09:50:52,849 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 2540 transitions. Word has length 34 [2022-12-14 09:50:52,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:50:52,849 INFO L495 AbstractCegarLoop]: Abstraction has 1321 states and 2540 transitions. [2022-12-14 09:50:52,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:52,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 2540 transitions. [2022-12-14 09:50:52,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 09:50:52,850 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:50:52,850 INFO L195 NwaCegarLoop]: trace histogram [10, 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 09:50:52,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-14 09:50:52,850 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:50:52,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:50:52,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1098795999, now seen corresponding path program 8 times [2022-12-14 09:50:52,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:50:52,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443137237] [2022-12-14 09:50:52,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:50:52,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:50:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:50:55,799 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:50:55,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:50:55,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443137237] [2022-12-14 09:50:55,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443137237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:50:55,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:50:55,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:50:55,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737209072] [2022-12-14 09:50:55,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:50:55,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:50:55,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:50:55,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:50:55,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:50:55,801 INFO L87 Difference]: Start difference. First operand 1321 states and 2540 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:59,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:50:59,538 INFO L93 Difference]: Finished difference Result 1497 states and 2869 transitions. [2022-12-14 09:50:59,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 09:50:59,539 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:59,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:50:59,541 INFO L225 Difference]: With dead ends: 1497 [2022-12-14 09:50:59,541 INFO L226 Difference]: Without dead ends: 1497 [2022-12-14 09:50:59,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-12-14 09:50:59,541 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 232 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:50:59,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 135 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 09:50:59,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2022-12-14 09:50:59,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1343. [2022-12-14 09:50:59,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 1326 states have (on average 1.9487179487179487) internal successors, (2584), 1342 states have internal predecessors, (2584), 0 states have call successors, (0), 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 09:50:59,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 2584 transitions. [2022-12-14 09:50:59,554 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 2584 transitions. Word has length 34 [2022-12-14 09:50:59,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:50:59,554 INFO L495 AbstractCegarLoop]: Abstraction has 1343 states and 2584 transitions. [2022-12-14 09:50:59,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:50:59,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 2584 transitions. [2022-12-14 09:50:59,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 09:50:59,555 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:50:59,555 INFO L195 NwaCegarLoop]: trace histogram [10, 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 09:50:59,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-14 09:50:59,555 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:50:59,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:50:59,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1969679297, now seen corresponding path program 9 times [2022-12-14 09:50:59,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:50:59,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960645472] [2022-12-14 09:50:59,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:50:59,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:50:59,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:51:02,649 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:51:02,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:51:02,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960645472] [2022-12-14 09:51:02,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960645472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:51:02,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:51:02,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:51:02,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153341783] [2022-12-14 09:51:02,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:51:02,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:51:02,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:51:02,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:51:02,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:51:02,650 INFO L87 Difference]: Start difference. First operand 1343 states and 2584 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:51:05,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:51:05,576 INFO L93 Difference]: Finished difference Result 1467 states and 2809 transitions. [2022-12-14 09:51:05,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 09:51:05,577 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:51:05,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:51:05,578 INFO L225 Difference]: With dead ends: 1467 [2022-12-14 09:51:05,578 INFO L226 Difference]: Without dead ends: 1467 [2022-12-14 09:51:05,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2022-12-14 09:51:05,579 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 256 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:51:05,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 135 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-12-14 09:51:05,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2022-12-14 09:51:05,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1321. [2022-12-14 09:51:05,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1304 states have (on average 1.9478527607361964) internal successors, (2540), 1320 states have internal predecessors, (2540), 0 states have call successors, (0), 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 09:51:05,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 2540 transitions. [2022-12-14 09:51:05,590 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 2540 transitions. Word has length 34 [2022-12-14 09:51:05,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:51:05,590 INFO L495 AbstractCegarLoop]: Abstraction has 1321 states and 2540 transitions. [2022-12-14 09:51:05,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:51:05,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 2540 transitions. [2022-12-14 09:51:05,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 09:51:05,591 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:51:05,591 INFO L195 NwaCegarLoop]: trace histogram [10, 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 09:51:05,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-12-14 09:51:05,591 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:51:05,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:51:05,592 INFO L85 PathProgramCache]: Analyzing trace with hash 283212073, now seen corresponding path program 10 times [2022-12-14 09:51:05,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:51:05,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977696643] [2022-12-14 09:51:05,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:51:05,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:51:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:51:07,927 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:51:07,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:51:07,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977696643] [2022-12-14 09:51:07,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977696643] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:51:07,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:51:07,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:51:07,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413573185] [2022-12-14 09:51:07,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:51:07,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:51:07,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:51:07,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:51:07,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:51:07,929 INFO L87 Difference]: Start difference. First operand 1321 states and 2540 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:51:11,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:51:12,000 INFO L93 Difference]: Finished difference Result 1907 states and 3664 transitions. [2022-12-14 09:51:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 09:51:12,000 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:51:12,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:51:12,002 INFO L225 Difference]: With dead ends: 1907 [2022-12-14 09:51:12,002 INFO L226 Difference]: Without dead ends: 1907 [2022-12-14 09:51:12,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2022-12-14 09:51:12,002 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 275 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:51:12,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 186 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-12-14 09:51:12,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2022-12-14 09:51:12,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1310. [2022-12-14 09:51:12,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 1293 states have (on average 1.9474091260634183) internal successors, (2518), 1309 states have internal predecessors, (2518), 0 states have call successors, (0), 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 09:51:12,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 2518 transitions. [2022-12-14 09:51:12,016 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 2518 transitions. Word has length 34 [2022-12-14 09:51:12,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:51:12,017 INFO L495 AbstractCegarLoop]: Abstraction has 1310 states and 2518 transitions. [2022-12-14 09:51:12,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:51:12,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 2518 transitions. [2022-12-14 09:51:12,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 09:51:12,017 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:51:12,017 INFO L195 NwaCegarLoop]: trace histogram [10, 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 09:51:12,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-14 09:51:12,018 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:51:12,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:51:12,018 INFO L85 PathProgramCache]: Analyzing trace with hash -943279927, now seen corresponding path program 11 times [2022-12-14 09:51:12,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:51:12,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592013410] [2022-12-14 09:51:12,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:51:12,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:51:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:51:14,691 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:51:14,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:51:14,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592013410] [2022-12-14 09:51:14,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592013410] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:51:14,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:51:14,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:51:14,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523517657] [2022-12-14 09:51:14,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:51:14,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:51:14,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:51:14,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:51:14,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:51:14,693 INFO L87 Difference]: Start difference. First operand 1310 states and 2518 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:51:18,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:51:18,093 INFO L93 Difference]: Finished difference Result 1910 states and 3670 transitions. [2022-12-14 09:51:18,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-14 09:51:18,093 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:51:18,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:51:18,096 INFO L225 Difference]: With dead ends: 1910 [2022-12-14 09:51:18,096 INFO L226 Difference]: Without dead ends: 1910 [2022-12-14 09:51:18,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2022-12-14 09:51:18,096 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 278 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:51:18,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 189 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 09:51:18,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1910 states. [2022-12-14 09:51:18,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1910 to 1299. [2022-12-14 09:51:18,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 1282 states have (on average 1.9469578783151327) internal successors, (2496), 1298 states have internal predecessors, (2496), 0 states have call successors, (0), 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 09:51:18,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 2496 transitions. [2022-12-14 09:51:18,110 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 2496 transitions. Word has length 34 [2022-12-14 09:51:18,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:51:18,110 INFO L495 AbstractCegarLoop]: Abstraction has 1299 states and 2496 transitions. [2022-12-14 09:51:18,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:51:18,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 2496 transitions. [2022-12-14 09:51:18,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-14 09:51:18,111 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:51:18,111 INFO L195 NwaCegarLoop]: trace histogram [10, 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 09:51:18,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-14 09:51:18,111 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:51:18,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:51:18,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1197695755, now seen corresponding path program 12 times [2022-12-14 09:51:18,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:51:18,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759272009] [2022-12-14 09:51:18,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:51:18,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:51:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:51:21,107 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:51:21,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:51:21,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759272009] [2022-12-14 09:51:21,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759272009] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:51:21,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:51:21,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:51:21,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123789352] [2022-12-14 09:51:21,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:51:21,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:51:21,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:51:21,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:51:21,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:51:21,109 INFO L87 Difference]: Start difference. First operand 1299 states and 2496 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:51:25,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:51:25,467 INFO L93 Difference]: Finished difference Result 1885 states and 3620 transitions. [2022-12-14 09:51:25,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 09:51:25,467 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:51:25,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:51:25,469 INFO L225 Difference]: With dead ends: 1885 [2022-12-14 09:51:25,469 INFO L226 Difference]: Without dead ends: 1885 [2022-12-14 09:51:25,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=220, Invalid=536, Unknown=0, NotChecked=0, Total=756 [2022-12-14 09:51:25,470 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 312 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 1626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:51:25,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 187 Invalid, 1626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 09:51:25,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2022-12-14 09:51:25,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1258. [2022-12-14 09:51:25,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1241 states have (on average 1.9452054794520548) internal successors, (2414), 1257 states have internal predecessors, (2414), 0 states have call successors, (0), 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 09:51:25,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 2414 transitions. [2022-12-14 09:51:25,482 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 2414 transitions. Word has length 34 [2022-12-14 09:51:25,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:51:25,482 INFO L495 AbstractCegarLoop]: Abstraction has 1258 states and 2414 transitions. [2022-12-14 09:51:25,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 0 states have call successors, (0), 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 09:51:25,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 2414 transitions. [2022-12-14 09:51:25,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 09:51:25,482 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:51:25,482 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 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 09:51:25,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-14 09:51:25,483 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:51:25,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:51:25,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1791873744, now seen corresponding path program 1 times [2022-12-14 09:51:25,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:51:25,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173701331] [2022-12-14 09:51:25,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:51:25,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:51:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:51:25,987 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:51:25,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:51:25,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173701331] [2022-12-14 09:51:25,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173701331] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:51:25,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:51:25,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:51:25,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835706778] [2022-12-14 09:51:25,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:51:25,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:51:25,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:51:25,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:51:25,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:51:25,989 INFO L87 Difference]: Start difference. First operand 1258 states and 2414 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 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 09:51:28,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:51:29,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:51:29,327 INFO L93 Difference]: Finished difference Result 1231 states and 2361 transitions. [2022-12-14 09:51:29,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:51:29,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 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 35 [2022-12-14 09:51:29,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:51:29,328 INFO L225 Difference]: With dead ends: 1231 [2022-12-14 09:51:29,328 INFO L226 Difference]: Without dead ends: 1231 [2022-12-14 09:51:29,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:51:29,329 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 31 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:51:29,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 69 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 09:51:29,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2022-12-14 09:51:29,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1231. [2022-12-14 09:51:29,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1231 states, 1216 states have (on average 1.941611842105263) internal successors, (2361), 1230 states have internal predecessors, (2361), 0 states have call successors, (0), 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 09:51:29,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 2361 transitions. [2022-12-14 09:51:29,339 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 2361 transitions. Word has length 35 [2022-12-14 09:51:29,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:51:29,340 INFO L495 AbstractCegarLoop]: Abstraction has 1231 states and 2361 transitions. [2022-12-14 09:51:29,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 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 09:51:29,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 2361 transitions. [2022-12-14 09:51:29,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 09:51:29,340 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:51:29,340 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 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 09:51:29,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-14 09:51:29,340 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:51:29,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:51:29,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1818048727, now seen corresponding path program 1 times [2022-12-14 09:51:29,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:51:29,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496163360] [2022-12-14 09:51:29,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:51:29,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:51:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:51:33,245 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:51:33,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:51:33,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496163360] [2022-12-14 09:51:33,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496163360] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:51:33,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:51:33,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 09:51:33,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572374756] [2022-12-14 09:51:33,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:51:33,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 09:51:33,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:51:33,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 09:51:33,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-12-14 09:51:33,246 INFO L87 Difference]: Start difference. First operand 1231 states and 2361 transitions. Second operand has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 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 09:51:37,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:51:37,844 INFO L93 Difference]: Finished difference Result 2294 states and 4393 transitions. [2022-12-14 09:51:37,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-14 09:51:37,844 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 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 36 [2022-12-14 09:51:37,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:51:37,847 INFO L225 Difference]: With dead ends: 2294 [2022-12-14 09:51:37,847 INFO L226 Difference]: Without dead ends: 2294 [2022-12-14 09:51:37,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2022-12-14 09:51:37,847 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 316 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 2099 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 2216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 2099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:51:37,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 276 Invalid, 2216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 2099 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 09:51:37,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2022-12-14 09:51:37,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 1243. [2022-12-14 09:51:37,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1228 states have (on average 1.9421824104234529) internal successors, (2385), 1242 states have internal predecessors, (2385), 0 states have call successors, (0), 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 09:51:37,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 2385 transitions. [2022-12-14 09:51:37,861 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 2385 transitions. Word has length 36 [2022-12-14 09:51:37,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:51:37,861 INFO L495 AbstractCegarLoop]: Abstraction has 1243 states and 2385 transitions. [2022-12-14 09:51:37,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 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 09:51:37,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 2385 transitions. [2022-12-14 09:51:37,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 09:51:37,862 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:51:37,862 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 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 09:51:37,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-12-14 09:51:37,862 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:51:37,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:51:37,863 INFO L85 PathProgramCache]: Analyzing trace with hash -2106400059, now seen corresponding path program 2 times [2022-12-14 09:51:37,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:51:37,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785477074] [2022-12-14 09:51:37,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:51:37,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:51:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:51:42,334 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:51:42,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:51:42,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785477074] [2022-12-14 09:51:42,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785477074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:51:42,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:51:42,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 09:51:42,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39587110] [2022-12-14 09:51:42,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:51:42,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 09:51:42,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:51:42,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 09:51:42,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-12-14 09:51:42,336 INFO L87 Difference]: Start difference. First operand 1243 states and 2385 transitions. Second operand has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 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 09:51:45,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:51:45,600 INFO L93 Difference]: Finished difference Result 2378 states and 4551 transitions. [2022-12-14 09:51:45,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-14 09:51:45,600 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 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 36 [2022-12-14 09:51:45,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:51:45,602 INFO L225 Difference]: With dead ends: 2378 [2022-12-14 09:51:45,602 INFO L226 Difference]: Without dead ends: 2378 [2022-12-14 09:51:45,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2022-12-14 09:51:45,603 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 408 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:51:45,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 276 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-12-14 09:51:45,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2378 states. [2022-12-14 09:51:45,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 1262. [2022-12-14 09:51:45,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1247 states have (on average 1.9438652766639937) internal successors, (2424), 1261 states have internal predecessors, (2424), 0 states have call successors, (0), 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 09:51:45,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 2424 transitions. [2022-12-14 09:51:45,617 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 2424 transitions. Word has length 36 [2022-12-14 09:51:45,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:51:45,617 INFO L495 AbstractCegarLoop]: Abstraction has 1262 states and 2424 transitions. [2022-12-14 09:51:45,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 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 09:51:45,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 2424 transitions. [2022-12-14 09:51:45,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 09:51:45,618 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:51:45,618 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 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 09:51:45,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-12-14 09:51:45,618 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:51:45,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:51:45,618 INFO L85 PathProgramCache]: Analyzing trace with hash 640331315, now seen corresponding path program 3 times [2022-12-14 09:51:45,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:51:45,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419824934] [2022-12-14 09:51:45,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:51:45,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:51:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:51:49,770 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-14 09:51:49,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:51:49,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419824934] [2022-12-14 09:51:49,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419824934] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:51:49,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:51:49,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 09:51:49,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699341530] [2022-12-14 09:51:49,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:51:49,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 09:51:49,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:51:49,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 09:51:49,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-12-14 09:51:49,772 INFO L87 Difference]: Start difference. First operand 1262 states and 2424 transitions. Second operand has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 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 09:51:53,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:51:55,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:51:55,783 INFO L93 Difference]: Finished difference Result 2442 states and 4679 transitions. [2022-12-14 09:51:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-12-14 09:51:55,783 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 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 36 [2022-12-14 09:51:55,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:51:55,785 INFO L225 Difference]: With dead ends: 2442 [2022-12-14 09:51:55,785 INFO L226 Difference]: Without dead ends: 2442 [2022-12-14 09:51:55,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 09:51:55,786 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 396 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 1990 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 2217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 1990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:51:55,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 276 Invalid, 2217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 1990 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-12-14 09:51:55,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2022-12-14 09:51:55,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 1281. [2022-12-14 09:51:55,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1266 states have (on average 1.9454976303317535) internal successors, (2463), 1280 states have internal predecessors, (2463), 0 states have call successors, (0), 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 09:51:55,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 2463 transitions. [2022-12-14 09:51:55,799 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 2463 transitions. Word has length 36 [2022-12-14 09:51:55,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:51:55,800 INFO L495 AbstractCegarLoop]: Abstraction has 1281 states and 2463 transitions. [2022-12-14 09:51:55,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 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 09:51:55,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 2463 transitions. [2022-12-14 09:51:55,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 09:51:55,800 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:51:55,800 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 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 09:51:55,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-12-14 09:51:55,800 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-14 09:51:55,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:51:55,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1471739677, now seen corresponding path program 4 times [2022-12-14 09:51:55,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:51:55,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084286871] [2022-12-14 09:51:55,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:51:55,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:51:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat