./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur --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 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- 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-38b53e6 [2022-11-26 01:06:59,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:06:59,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:06:59,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:06:59,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:06:59,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:06:59,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:06:59,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:06:59,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:06:59,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:06:59,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:06:59,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:06:59,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:06:59,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:06:59,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:06:59,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:06:59,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:06:59,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:06:59,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:06:59,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:06:59,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:06:59,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:06:59,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:06:59,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:06:59,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:06:59,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:06:59,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:06:59,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:06:59,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:06:59,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:06:59,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:06:59,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:06:59,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:06:59,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:06:59,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:06:59,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:06:59,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:06:59,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:06:59,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:06:59,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:06:59,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:06:59,342 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 01:06:59,378 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:06:59,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:06:59,379 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:06:59,383 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:06:59,384 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:06:59,384 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:06:59,385 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:06:59,385 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:06:59,385 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:06:59,385 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:06:59,386 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:06:59,387 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:06:59,387 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:06:59,387 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:06:59,387 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:06:59,388 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:06:59,388 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:06:59,388 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:06:59,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:06:59,389 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 01:06:59,389 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:06:59,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:06:59,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 01:06:59,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:06:59,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:06:59,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:06:59,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:06:59,392 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 01:06:59,392 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 01:06:59,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:06:59,393 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:06:59,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:06:59,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:06:59,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:06:59,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:06:59,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:06:59,394 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:06:59,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:06:59,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:06:59,395 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:06:59,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:06:59,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:06:59,397 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:06:59,397 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_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2022-11-26 01:06:59,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:06:59,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:06:59,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:06:59,769 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:06:59,770 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:06:59,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2022-11-26 01:07:02,859 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:07:03,252 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:07:03,253 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2022-11-26 01:07:03,266 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/data/f6bf583d1/2fc8ffe3d0c14314bf8b39c4bfd2084a/FLAG6e2e17bca [2022-11-26 01:07:03,281 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/data/f6bf583d1/2fc8ffe3d0c14314bf8b39c4bfd2084a [2022-11-26 01:07:03,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:07:03,285 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:07:03,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:07:03,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:07:03,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:07:03,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:07:03" (1/1) ... [2022-11-26 01:07:03,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6217e67f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:07:03, skipping insertion in model container [2022-11-26 01:07:03,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:07:03" (1/1) ... [2022-11-26 01:07:03,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:07:03,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:07:03,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:07:03,962 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:07:04,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:07:04,107 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:07:04,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:07:04 WrapperNode [2022-11-26 01:07:04,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:07:04,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:07:04,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:07:04,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:07:04,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:07:04" (1/1) ... [2022-11-26 01:07:04,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:07:04" (1/1) ... [2022-11-26 01:07:04,200 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2022-11-26 01:07:04,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:07:04,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:07:04,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:07:04,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:07:04,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:07:04" (1/1) ... [2022-11-26 01:07:04,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:07:04" (1/1) ... [2022-11-26 01:07:04,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:07:04" (1/1) ... [2022-11-26 01:07:04,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:07:04" (1/1) ... [2022-11-26 01:07:04,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:07:04" (1/1) ... [2022-11-26 01:07:04,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:07:04" (1/1) ... [2022-11-26 01:07:04,253 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:07:04" (1/1) ... [2022-11-26 01:07:04,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:07:04" (1/1) ... [2022-11-26 01:07:04,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:07:04,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:07:04,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:07:04,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:07:04,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:07:04" (1/1) ... [2022-11-26 01:07:04,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:07:04,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:07:04,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:07:04,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:07:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:07:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:07:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 01:07:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 01:07:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 01:07:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:07:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-26 01:07:04,365 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-26 01:07:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:07:04,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:07:04,367 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 01:07:04,582 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:07:04,585 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:07:04,873 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:07:04,882 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:07:04,882 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 01:07:04,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:07:04 BoogieIcfgContainer [2022-11-26 01:07:04,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:07:04,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:07:04,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:07:04,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:07:04,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:07:03" (1/3) ... [2022-11-26 01:07:04,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8a1876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:07:04, skipping insertion in model container [2022-11-26 01:07:04,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:07:04" (2/3) ... [2022-11-26 01:07:04,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8a1876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:07:04, skipping insertion in model container [2022-11-26 01:07:04,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:07:04" (3/3) ... [2022-11-26 01:07:04,896 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2022-11-26 01:07:04,905 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 01:07:04,918 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:07:04,918 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-26 01:07:04,918 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 01:07:05,008 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 01:07:05,043 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 01:07:05,073 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 103 transitions, 211 flow [2022-11-26 01:07:05,077 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 103 transitions, 211 flow [2022-11-26 01:07:05,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 103 transitions, 211 flow [2022-11-26 01:07:05,173 INFO L130 PetriNetUnfolder]: 4/102 cut-off events. [2022-11-26 01:07:05,191 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 01:07:05,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 102 events. 4/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-11-26 01:07:05,210 INFO L119 LiptonReduction]: Number of co-enabled transitions 2220 [2022-11-26 01:07:08,256 INFO L134 LiptonReduction]: Checked pairs total: 10982 [2022-11-26 01:07:08,256 INFO L136 LiptonReduction]: Total number of compositions: 83 [2022-11-26 01:07:08,268 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 38 transitions, 81 flow [2022-11-26 01:07:08,302 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 288 states, 280 states have (on average 1.9892857142857143) internal successors, (557), 287 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:08,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:07:08,329 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;@2fd0c5cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:07:08,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-26 01:07:08,332 INFO L276 IsEmpty]: Start isEmpty. Operand has 288 states, 280 states have (on average 1.9892857142857143) internal successors, (557), 287 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:08,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 01:07:08,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:08,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 01:07:08,340 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:07:08,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:08,345 INFO L85 PathProgramCache]: Analyzing trace with hash 351229499, now seen corresponding path program 1 times [2022-11-26 01:07:08,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:08,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946114463] [2022-11-26 01:07:08,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:08,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:08,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:07:08,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:08,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946114463] [2022-11-26 01:07:08,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946114463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:08,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:08,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 01:07:08,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326580180] [2022-11-26 01:07:08,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:08,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:07:08,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:08,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:07:08,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:07:08,692 INFO L87 Difference]: Start difference. First operand has 288 states, 280 states have (on average 1.9892857142857143) internal successors, (557), 287 states have internal predecessors, (557), 0 states have call successors, (0), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:08,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:08,788 INFO L93 Difference]: Finished difference Result 289 states and 541 transitions. [2022-11-26 01:07:08,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:07:08,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 01:07:08,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:08,811 INFO L225 Difference]: With dead ends: 289 [2022-11-26 01:07:08,812 INFO L226 Difference]: Without dead ends: 289 [2022-11-26 01:07:08,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:07:08,820 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:08,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 01:07:08,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-11-26 01:07:08,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2022-11-26 01:07:08,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 281 states have (on average 1.9252669039145907) internal successors, (541), 288 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:08,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 541 transitions. [2022-11-26 01:07:08,894 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 541 transitions. Word has length 5 [2022-11-26 01:07:08,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:08,895 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 541 transitions. [2022-11-26 01:07:08,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:08,896 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 541 transitions. [2022-11-26 01:07:08,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 01:07:08,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:08,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:08,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:07:08,898 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:07:08,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:08,899 INFO L85 PathProgramCache]: Analyzing trace with hash -17925749, now seen corresponding path program 1 times [2022-11-26 01:07:08,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:08,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118386858] [2022-11-26 01:07:08,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:08,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:09,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:07:09,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:09,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118386858] [2022-11-26 01:07:09,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118386858] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:07:09,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408091311] [2022-11-26 01:07:09,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:09,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:07:09,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:07:09,107 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:07:09,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 01:07:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:09,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 01:07:09,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:07:09,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:07:09,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:07:09,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:07:09,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408091311] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 01:07:09,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [876873262] [2022-11-26 01:07:09,337 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) [2022-11-26 01:07:09,351 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 01:07:09,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-26 01:07:09,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519539974] [2022-11-26 01:07:09,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 01:07:09,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 01:07:09,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:09,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 01:07:09,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-26 01:07:09,354 INFO L87 Difference]: Start difference. First operand 289 states and 541 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) [2022-11-26 01:07:09,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:09,406 INFO L93 Difference]: Finished difference Result 292 states and 544 transitions. [2022-11-26 01:07:09,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:07:09,407 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 [2022-11-26 01:07:09,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:09,408 INFO L225 Difference]: With dead ends: 292 [2022-11-26 01:07:09,408 INFO L226 Difference]: Without dead ends: 292 [2022-11-26 01:07:09,409 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 [2022-11-26 01:07:09,410 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:09,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 01:07:09,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-11-26 01:07:09,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2022-11-26 01:07:09,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 284 states have (on average 1.9154929577464788) internal successors, (544), 291 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:09,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 544 transitions. [2022-11-26 01:07:09,434 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 544 transitions. Word has length 11 [2022-11-26 01:07:09,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:09,436 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 544 transitions. [2022-11-26 01:07:09,436 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) [2022-11-26 01:07:09,436 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 544 transitions. [2022-11-26 01:07:09,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 01:07:09,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:09,438 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:09,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 01:07:09,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:07:09,644 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:07:09,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:09,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1184193064, now seen corresponding path program 2 times [2022-11-26 01:07:09,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:09,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022870793] [2022-11-26 01:07:09,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:09,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:10,078 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-26 01:07:10,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:10,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022870793] [2022-11-26 01:07:10,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022870793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:10,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:10,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:07:10,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705628504] [2022-11-26 01:07:10,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:10,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 01:07:10,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:10,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 01:07:10,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:07:10,082 INFO L87 Difference]: Start difference. First operand 292 states and 544 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) [2022-11-26 01:07:10,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:10,397 INFO L93 Difference]: Finished difference Result 324 states and 602 transitions. [2022-11-26 01:07:10,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:07:10,397 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 [2022-11-26 01:07:10,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:10,399 INFO L225 Difference]: With dead ends: 324 [2022-11-26 01:07:10,399 INFO L226 Difference]: Without dead ends: 324 [2022-11-26 01:07:10,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:07:10,401 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:10,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 16 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 01:07:10,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-11-26 01:07:10,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 310. [2022-11-26 01:07:10,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 303 states have (on average 1.900990099009901) internal successors, (576), 309 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:10,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 576 transitions. [2022-11-26 01:07:10,414 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 576 transitions. Word has length 14 [2022-11-26 01:07:10,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:10,414 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 576 transitions. [2022-11-26 01:07:10,414 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) [2022-11-26 01:07:10,415 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 576 transitions. [2022-11-26 01:07:10,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 01:07:10,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:10,416 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:10,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 01:07:10,416 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:07:10,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:10,417 INFO L85 PathProgramCache]: Analyzing trace with hash 719757177, now seen corresponding path program 1 times [2022-11-26 01:07:10,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:10,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041096935] [2022-11-26 01:07:10,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:10,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:10,670 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-26 01:07:10,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:10,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041096935] [2022-11-26 01:07:10,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041096935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:10,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:10,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:07:10,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514653273] [2022-11-26 01:07:10,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:10,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 01:07:10,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:10,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 01:07:10,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:07:10,674 INFO L87 Difference]: Start difference. First operand 310 states and 576 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) [2022-11-26 01:07:10,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:10,895 INFO L93 Difference]: Finished difference Result 343 states and 636 transitions. [2022-11-26 01:07:10,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:07:10,899 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 [2022-11-26 01:07:10,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:10,901 INFO L225 Difference]: With dead ends: 343 [2022-11-26 01:07:10,901 INFO L226 Difference]: Without dead ends: 343 [2022-11-26 01:07:10,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:07:10,902 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:10,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 16 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 01:07:10,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-11-26 01:07:10,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 329. [2022-11-26 01:07:10,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 322 states have (on average 1.8944099378881987) internal successors, (610), 328 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:10,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 610 transitions. [2022-11-26 01:07:10,919 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 610 transitions. Word has length 14 [2022-11-26 01:07:10,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:10,923 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 610 transitions. [2022-11-26 01:07:10,923 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) [2022-11-26 01:07:10,924 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 610 transitions. [2022-11-26 01:07:10,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-26 01:07:10,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:10,926 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:10,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 01:07:10,927 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:07:10,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:10,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1845078780, now seen corresponding path program 1 times [2022-11-26 01:07:10,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:10,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359334278] [2022-11-26 01:07:10,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:10,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:11,067 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:07:11,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:11,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359334278] [2022-11-26 01:07:11,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359334278] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:07:11,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306779935] [2022-11-26 01:07:11,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:11,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:07:11,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:07:11,072 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:07:11,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 01:07:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:11,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 01:07:11,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:07:11,225 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:07:11,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:07:11,296 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:07:11,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306779935] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 01:07:11,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2004959038] [2022-11-26 01:07:11,297 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) [2022-11-26 01:07:11,300 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 01:07:11,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-26 01:07:11,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146262431] [2022-11-26 01:07:11,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 01:07:11,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 01:07:11,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:11,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 01:07:11,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-26 01:07:11,304 INFO L87 Difference]: Start difference. First operand 329 states and 610 transitions. Second operand has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:11,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:11,347 INFO L93 Difference]: Finished difference Result 335 states and 616 transitions. [2022-11-26 01:07:11,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 01:07:11,348 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-26 01:07:11,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:11,349 INFO L225 Difference]: With dead ends: 335 [2022-11-26 01:07:11,349 INFO L226 Difference]: Without dead ends: 335 [2022-11-26 01:07:11,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-11-26 01:07:11,352 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:11,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 01:07:11,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-11-26 01:07:11,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2022-11-26 01:07:11,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 328 states have (on average 1.8780487804878048) internal successors, (616), 334 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:11,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 616 transitions. [2022-11-26 01:07:11,367 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 616 transitions. Word has length 20 [2022-11-26 01:07:11,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:11,368 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 616 transitions. [2022-11-26 01:07:11,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:11,369 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 616 transitions. [2022-11-26 01:07:11,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-26 01:07:11,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:11,375 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:11,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 01:07:11,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:07:11,586 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:07:11,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:11,587 INFO L85 PathProgramCache]: Analyzing trace with hash -2083016156, now seen corresponding path program 2 times [2022-11-26 01:07:11,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:11,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326383779] [2022-11-26 01:07:11,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:11,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:11,885 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 01:07:11,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:11,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326383779] [2022-11-26 01:07:11,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326383779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:11,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:11,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:07:11,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848587902] [2022-11-26 01:07:11,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:11,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 01:07:11,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:11,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 01:07:11,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:07:11,888 INFO L87 Difference]: Start difference. First operand 335 states and 616 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) [2022-11-26 01:07:12,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:12,156 INFO L93 Difference]: Finished difference Result 387 states and 714 transitions. [2022-11-26 01:07:12,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:07:12,157 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 [2022-11-26 01:07:12,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:12,160 INFO L225 Difference]: With dead ends: 387 [2022-11-26 01:07:12,160 INFO L226 Difference]: Without dead ends: 361 [2022-11-26 01:07:12,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:07:12,161 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:12,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 16 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-26 01:07:12,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-11-26 01:07:12,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2022-11-26 01:07:12,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 354 states have (on average 1.8700564971751412) internal successors, (662), 360 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:12,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 662 transitions. [2022-11-26 01:07:12,180 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 662 transitions. Word has length 26 [2022-11-26 01:07:12,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:12,180 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 662 transitions. [2022-11-26 01:07:12,180 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) [2022-11-26 01:07:12,180 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 662 transitions. [2022-11-26 01:07:12,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-26 01:07:12,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:12,181 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:07:12,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 01:07:12,182 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:07:12,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:12,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1130374452, now seen corresponding path program 1 times [2022-11-26 01:07:12,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:12,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627992575] [2022-11-26 01:07:12,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:12,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:12,498 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 01:07:12,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:12,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627992575] [2022-11-26 01:07:12,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627992575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:12,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:12,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:07:12,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265919674] [2022-11-26 01:07:12,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:12,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 01:07:12,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:12,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 01:07:12,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:07:12,502 INFO L87 Difference]: Start difference. First operand 361 states and 662 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) [2022-11-26 01:07:12,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:12,765 INFO L93 Difference]: Finished difference Result 420 states and 770 transitions. [2022-11-26 01:07:12,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:07:12,766 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 [2022-11-26 01:07:12,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:12,768 INFO L225 Difference]: With dead ends: 420 [2022-11-26 01:07:12,768 INFO L226 Difference]: Without dead ends: 394 [2022-11-26 01:07:12,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:07:12,769 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:12,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 16 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 01:07:12,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-11-26 01:07:12,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 386. [2022-11-26 01:07:12,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 379 states have (on average 1.8522427440633245) internal successors, (702), 385 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:12,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 702 transitions. [2022-11-26 01:07:12,781 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 702 transitions. Word has length 26 [2022-11-26 01:07:12,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:12,781 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 702 transitions. [2022-11-26 01:07:12,782 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) [2022-11-26 01:07:12,782 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 702 transitions. [2022-11-26 01:07:12,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 01:07:12,783 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:12,783 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] [2022-11-26 01:07:12,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 01:07:12,783 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:07:12,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:12,784 INFO L85 PathProgramCache]: Analyzing trace with hash 958653847, now seen corresponding path program 1 times [2022-11-26 01:07:12,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:12,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914274177] [2022-11-26 01:07:12,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:12,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 01:07:13,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:13,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914274177] [2022-11-26 01:07:13,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914274177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:13,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:13,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 01:07:13,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118294229] [2022-11-26 01:07:13,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:13,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 01:07:13,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:13,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 01:07:13,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-26 01:07:13,722 INFO L87 Difference]: Start difference. First operand 386 states and 702 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:14,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:14,273 INFO L93 Difference]: Finished difference Result 756 states and 1382 transitions. [2022-11-26 01:07:14,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 01:07:14,274 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-26 01:07:14,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:14,277 INFO L225 Difference]: With dead ends: 756 [2022-11-26 01:07:14,277 INFO L226 Difference]: Without dead ends: 756 [2022-11-26 01:07:14,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-26 01:07:14,278 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 103 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:14,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 16 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 01:07:14,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-11-26 01:07:14,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 478. [2022-11-26 01:07:14,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 471 states have (on average 1.8768577494692145) internal successors, (884), 477 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:14,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 884 transitions. [2022-11-26 01:07:14,295 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 884 transitions. Word has length 29 [2022-11-26 01:07:14,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:14,295 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 884 transitions. [2022-11-26 01:07:14,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:14,296 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 884 transitions. [2022-11-26 01:07:14,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 01:07:14,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:14,297 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] [2022-11-26 01:07:14,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 01:07:14,298 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:07:14,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:14,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1314945151, now seen corresponding path program 1 times [2022-11-26 01:07:14,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:14,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735243576] [2022-11-26 01:07:14,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:14,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:20,842 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:07:20,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:20,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735243576] [2022-11-26 01:07:20,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735243576] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:07:20,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977707805] [2022-11-26 01:07:20,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:20,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:07:20,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:07:20,845 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:07:20,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 01:07:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:21,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-26 01:07:21,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:07:21,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 01:07:21,306 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-26 01:07:21,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-11-26 01:07:21,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 01:07:21,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-26 01:07:21,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-26 01:07:21,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-26 01:07:21,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:21,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:21,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:21,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:21,823 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 01:07:21,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2022-11-26 01:07:21,836 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 01:07:21,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:07:23,248 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 01:07:23,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977707805] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-26 01:07:23,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 01:07:23,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18, 16] total 39 [2022-11-26 01:07:23,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193600802] [2022-11-26 01:07:23,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:23,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 01:07:23,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:23,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 01:07:23,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1395, Unknown=0, NotChecked=0, Total=1560 [2022-11-26 01:07:23,253 INFO L87 Difference]: Start difference. First operand 478 states and 884 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:26,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:26,644 INFO L93 Difference]: Finished difference Result 778 states and 1418 transitions. [2022-11-26 01:07:26,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 01:07:26,645 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-26 01:07:26,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:26,650 INFO L225 Difference]: With dead ends: 778 [2022-11-26 01:07:26,650 INFO L226 Difference]: Without dead ends: 778 [2022-11-26 01:07:26,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=211, Invalid=1859, Unknown=0, NotChecked=0, Total=2070 [2022-11-26 01:07:26,655 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 108 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:26,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 15 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-26 01:07:26,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2022-11-26 01:07:26,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 480. [2022-11-26 01:07:26,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 473 states have (on average 1.8752642706131077) internal successors, (887), 479 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:26,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 887 transitions. [2022-11-26 01:07:26,676 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 887 transitions. Word has length 29 [2022-11-26 01:07:26,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:26,677 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 887 transitions. [2022-11-26 01:07:26,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:26,678 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 887 transitions. [2022-11-26 01:07:26,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 01:07:26,680 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:26,680 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] [2022-11-26 01:07:26,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 01:07:26,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:07:26,887 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:07:26,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:26,887 INFO L85 PathProgramCache]: Analyzing trace with hash 429030484, now seen corresponding path program 1 times [2022-11-26 01:07:26,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:26,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685973935] [2022-11-26 01:07:26,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:26,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 01:07:28,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:28,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685973935] [2022-11-26 01:07:28,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685973935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:28,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:28,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-26 01:07:28,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348815016] [2022-11-26 01:07:28,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:28,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-26 01:07:28,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:28,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-26 01:07:28,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-26 01:07:28,720 INFO L87 Difference]: Start difference. First operand 480 states and 887 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:29,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:29,954 INFO L93 Difference]: Finished difference Result 865 states and 1585 transitions. [2022-11-26 01:07:29,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 01:07:29,955 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-26 01:07:29,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:29,959 INFO L225 Difference]: With dead ends: 865 [2022-11-26 01:07:29,959 INFO L226 Difference]: Without dead ends: 865 [2022-11-26 01:07:29,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=135, Invalid=245, Unknown=0, NotChecked=0, Total=380 [2022-11-26 01:07:29,960 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 134 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:29,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 17 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 01:07:29,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-11-26 01:07:29,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 508. [2022-11-26 01:07:29,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 501 states have (on average 1.8822355289421158) internal successors, (943), 507 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:29,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 943 transitions. [2022-11-26 01:07:29,978 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 943 transitions. Word has length 29 [2022-11-26 01:07:29,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:29,978 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 943 transitions. [2022-11-26 01:07:29,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 11 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:29,979 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 943 transitions. [2022-11-26 01:07:29,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 01:07:29,980 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:29,980 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] [2022-11-26 01:07:29,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 01:07:29,980 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:07:29,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:29,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1529915342, now seen corresponding path program 2 times [2022-11-26 01:07:29,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:29,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856948704] [2022-11-26 01:07:29,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:29,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:30,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:31,434 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 01:07:31,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:31,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856948704] [2022-11-26 01:07:31,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856948704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:07:31,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:07:31,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-26 01:07:31,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311813217] [2022-11-26 01:07:31,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:07:31,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-26 01:07:31,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:07:31,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-26 01:07:31,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-26 01:07:31,436 INFO L87 Difference]: Start difference. First operand 508 states and 943 transitions. Second operand has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:32,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:07:32,388 INFO L93 Difference]: Finished difference Result 874 states and 1603 transitions. [2022-11-26 01:07:32,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-26 01:07:32,388 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-26 01:07:32,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:07:32,395 INFO L225 Difference]: With dead ends: 874 [2022-11-26 01:07:32,395 INFO L226 Difference]: Without dead ends: 874 [2022-11-26 01:07:32,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2022-11-26 01:07:32,396 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 126 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 01:07:32,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 17 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 01:07:32,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2022-11-26 01:07:32,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 522. [2022-11-26 01:07:32,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 515 states have (on average 1.8854368932038834) internal successors, (971), 521 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:32,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 971 transitions. [2022-11-26 01:07:32,412 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 971 transitions. Word has length 29 [2022-11-26 01:07:32,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:07:32,412 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 971 transitions. [2022-11-26 01:07:32,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:07:32,413 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 971 transitions. [2022-11-26 01:07:32,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 01:07:32,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:07:32,415 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] [2022-11-26 01:07:32,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-26 01:07:32,415 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:07:32,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:07:32,416 INFO L85 PathProgramCache]: Analyzing trace with hash 243667476, now seen corresponding path program 3 times [2022-11-26 01:07:32,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:07:32,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995212811] [2022-11-26 01:07:32,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:07:32,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:07:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:07:36,510 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:07:36,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:07:36,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995212811] [2022-11-26 01:07:36,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995212811] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:07:36,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669320036] [2022-11-26 01:07:36,511 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-26 01:07:36,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:07:36,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:07:36,512 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:07:36,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 01:07:36,675 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-26 01:07:36,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 01:07:36,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-26 01:07:36,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:07:36,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 01:07:36,756 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-26 01:07:36,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2022-11-26 01:07:36,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-26 01:07:36,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-26 01:07:37,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:37,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2022-11-26 01:07:37,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:37,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:37,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2022-11-26 01:07:37,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:37,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:37,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2022-11-26 01:07:37,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:37,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:37,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2022-11-26 01:07:37,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:37,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:37,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:37,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:37,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:37,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:37,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:37,399 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 01:07:37,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 76 [2022-11-26 01:07:51,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:51,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:51,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:51,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:51,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:51,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:51,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:51,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:51,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:51,570 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 01:07:51,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 78 [2022-11-26 01:07:57,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:57,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:57,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:57,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:57,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:57,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:57,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:57,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:57,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:57,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:57,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:57,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:07:57,753 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-26 01:07:57,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 93 [2022-11-26 01:08:01,886 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-26 01:08:01,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:08:03,392 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 01:08:03,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669320036] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-26 01:08:03,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 01:08:03,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [20, 11] total 38 [2022-11-26 01:08:03,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316735361] [2022-11-26 01:08:03,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:08:03,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-26 01:08:03,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:08:03,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-26 01:08:03,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1285, Unknown=9, NotChecked=0, Total=1482 [2022-11-26 01:08:03,396 INFO L87 Difference]: Start difference. First operand 522 states and 971 transitions. Second operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:08:24,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:08:24,160 INFO L93 Difference]: Finished difference Result 912 states and 1673 transitions. [2022-11-26 01:08:24,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-26 01:08:24,161 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-26 01:08:24,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:08:24,165 INFO L225 Difference]: With dead ends: 912 [2022-11-26 01:08:24,165 INFO L226 Difference]: Without dead ends: 912 [2022-11-26 01:08:24,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 43.3s TimeCoverageRelationStatistics Valid=283, Invalid=1862, Unknown=17, NotChecked=0, Total=2162 [2022-11-26 01:08:24,167 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 154 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-26 01:08:24,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 17 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-26 01:08:24,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2022-11-26 01:08:24,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 525. [2022-11-26 01:08:24,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 518 states have (on average 1.886100386100386) internal successors, (977), 524 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:08:24,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 977 transitions. [2022-11-26 01:08:24,200 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 977 transitions. Word has length 29 [2022-11-26 01:08:24,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:08:24,201 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 977 transitions. [2022-11-26 01:08:24,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:08:24,201 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 977 transitions. [2022-11-26 01:08:24,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 01:08:24,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:08:24,202 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] [2022-11-26 01:08:24,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 01:08:24,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1bd93f-3619-4615-8128-e9b11eb694af/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-26 01:08:24,408 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:08:24,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:08:24,409 INFO L85 PathProgramCache]: Analyzing trace with hash 240853296, now seen corresponding path program 4 times [2022-11-26 01:08:24,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:08:24,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751647156] [2022-11-26 01:08:24,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:24,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:08:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:08:25,562 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 01:08:25,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:08:25,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751647156] [2022-11-26 01:08:25,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751647156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:08:25,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:08:25,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 01:08:25,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219521809] [2022-11-26 01:08:25,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:08:25,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 01:08:25,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:08:25,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 01:08:25,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-26 01:08:25,564 INFO L87 Difference]: Start difference. First operand 525 states and 977 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:08:26,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:08:26,468 INFO L93 Difference]: Finished difference Result 852 states and 1564 transitions. [2022-11-26 01:08:26,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 01:08:26,469 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-26 01:08:26,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:08:26,474 INFO L225 Difference]: With dead ends: 852 [2022-11-26 01:08:26,474 INFO L226 Difference]: Without dead ends: 844 [2022-11-26 01:08:26,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-26 01:08:26,475 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 111 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 01:08:26,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 17 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 01:08:26,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2022-11-26 01:08:26,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 546. [2022-11-26 01:08:26,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 539 states have (on average 1.8831168831168832) internal successors, (1015), 545 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:08:26,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 1015 transitions. [2022-11-26 01:08:26,494 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 1015 transitions. Word has length 29 [2022-11-26 01:08:26,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:08:26,494 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 1015 transitions. [2022-11-26 01:08:26,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:08:26,495 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 1015 transitions. [2022-11-26 01:08:26,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 01:08:26,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:08:26,496 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] [2022-11-26 01:08:26,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 01:08:26,497 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:08:26,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:08:26,497 INFO L85 PathProgramCache]: Analyzing trace with hash -669772749, now seen corresponding path program 1 times [2022-11-26 01:08:26,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:08:26,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451258804] [2022-11-26 01:08:26,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:26,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:08:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:08:26,883 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 01:08:26,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:08:26,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451258804] [2022-11-26 01:08:26,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451258804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:08:26,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:08:26,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 01:08:26,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258653221] [2022-11-26 01:08:26,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:08:26,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 01:08:26,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:08:26,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 01:08:26,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-26 01:08:26,885 INFO L87 Difference]: Start difference. First operand 546 states and 1015 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:08:27,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:08:27,600 INFO L93 Difference]: Finished difference Result 818 states and 1496 transitions. [2022-11-26 01:08:27,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-26 01:08:27,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-26 01:08:27,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:08:27,604 INFO L225 Difference]: With dead ends: 818 [2022-11-26 01:08:27,604 INFO L226 Difference]: Without dead ends: 818 [2022-11-26 01:08:27,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-11-26 01:08:27,605 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 145 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 01:08:27,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 11 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 01:08:27,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-11-26 01:08:27,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 548. [2022-11-26 01:08:27,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 541 states have (on average 1.8853974121996304) internal successors, (1020), 547 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:08:27,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 1020 transitions. [2022-11-26 01:08:27,624 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 1020 transitions. Word has length 29 [2022-11-26 01:08:27,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:08:27,624 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 1020 transitions. [2022-11-26 01:08:27,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:08:27,625 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 1020 transitions. [2022-11-26 01:08:27,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 01:08:27,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:08:27,626 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] [2022-11-26 01:08:27,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-26 01:08:27,626 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:08:27,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:08:27,627 INFO L85 PathProgramCache]: Analyzing trace with hash -636704739, now seen corresponding path program 2 times [2022-11-26 01:08:27,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:08:27,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917268020] [2022-11-26 01:08:27,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:27,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:08:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:08:28,073 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 01:08:28,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:08:28,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917268020] [2022-11-26 01:08:28,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917268020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:08:28,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:08:28,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 01:08:28,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096683078] [2022-11-26 01:08:28,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:08:28,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 01:08:28,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:08:28,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 01:08:28,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-26 01:08:28,076 INFO L87 Difference]: Start difference. First operand 548 states and 1020 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:08:28,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:08:28,774 INFO L93 Difference]: Finished difference Result 813 states and 1486 transitions. [2022-11-26 01:08:28,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 01:08:28,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-26 01:08:28,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:08:28,779 INFO L225 Difference]: With dead ends: 813 [2022-11-26 01:08:28,779 INFO L226 Difference]: Without dead ends: 813 [2022-11-26 01:08:28,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-26 01:08:28,780 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 98 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 01:08:28,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 17 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 01:08:28,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2022-11-26 01:08:28,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 551. [2022-11-26 01:08:28,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 544 states have (on average 1.8878676470588236) internal successors, (1027), 550 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:08:28,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 1027 transitions. [2022-11-26 01:08:28,798 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 1027 transitions. Word has length 29 [2022-11-26 01:08:28,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:08:28,798 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 1027 transitions. [2022-11-26 01:08:28,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:08:28,799 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 1027 transitions. [2022-11-26 01:08:28,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 01:08:28,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:08:28,800 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] [2022-11-26 01:08:28,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 01:08:28,800 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:08:28,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:08:28,801 INFO L85 PathProgramCache]: Analyzing trace with hash -635609199, now seen corresponding path program 3 times [2022-11-26 01:08:28,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:08:28,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027715458] [2022-11-26 01:08:28,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:28,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:08:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:08:29,320 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-26 01:08:29,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:08:29,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027715458] [2022-11-26 01:08:29,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027715458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:08:29,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:08:29,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 01:08:29,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996069980] [2022-11-26 01:08:29,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:08:29,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 01:08:29,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:08:29,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 01:08:29,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-26 01:08:29,322 INFO L87 Difference]: Start difference. First operand 551 states and 1027 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:08:30,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:08:30,031 INFO L93 Difference]: Finished difference Result 808 states and 1476 transitions. [2022-11-26 01:08:30,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 01:08:30,032 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-26 01:08:30,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:08:30,036 INFO L225 Difference]: With dead ends: 808 [2022-11-26 01:08:30,036 INFO L226 Difference]: Without dead ends: 808 [2022-11-26 01:08:30,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-26 01:08:30,037 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 102 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 01:08:30,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 17 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 01:08:30,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2022-11-26 01:08:30,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 554. [2022-11-26 01:08:30,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 547 states have (on average 1.8903107861060329) internal successors, (1034), 553 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:08:30,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1034 transitions. [2022-11-26 01:08:30,054 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1034 transitions. Word has length 29 [2022-11-26 01:08:30,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:08:30,055 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 1034 transitions. [2022-11-26 01:08:30,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 01:08:30,055 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1034 transitions. [2022-11-26 01:08:30,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-26 01:08:30,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:08:30,056 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] [2022-11-26 01:08:30,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-26 01:08:30,057 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-26 01:08:30,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:08:30,057 INFO L85 PathProgramCache]: Analyzing trace with hash -635572929, now seen corresponding path program 4 times [2022-11-26 01:08:30,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:08:30,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129345428] [2022-11-26 01:08:30,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:30,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:08:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat