./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P --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 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:17:55,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:17:55,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:17:55,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:17:55,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:17:55,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:17:55,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:17:55,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:17:55,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:17:55,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:17:55,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:17:55,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:17:55,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:17:55,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:17:55,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:17:55,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:17:55,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:17:55,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:17:55,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:17:56,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:17:56,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:17:56,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:17:56,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:17:56,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:17:56,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:17:56,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:17:56,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:17:56,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:17:56,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:17:56,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:17:56,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:17:56,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:17:56,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:17:56,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:17:56,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:17:56,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:17:56,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:17:56,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:17:56,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:17:56,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:17:56,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:17:56,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-20 23:17:56,051 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:17:56,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:17:56,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:17:56,052 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:17:56,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:17:56,052 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:17:56,053 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:17:56,053 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:17:56,053 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:17:56,053 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:17:56,054 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:17:56,054 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:17:56,054 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:17:56,054 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:17:56,054 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:17:56,055 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:17:56,055 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:17:56,055 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:17:56,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:17:56,056 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:17:56,056 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 23:17:56,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:17:56,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:17:56,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:17:56,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:17:56,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:17:56,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:17:56,058 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-20 23:17:56,058 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:17:56,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:17:56,059 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:17:56,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:17:56,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:17:56,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:17:56,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:17:56,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:17:56,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:17:56,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:17:56,060 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:17:56,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:17:56,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:17:56,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:17:56,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:17:56,061 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc [2021-11-20 23:17:56,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:17:56,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:17:56,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:17:56,395 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:17:56,396 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:17:56,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i [2021-11-20 23:17:56,473 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P/data/1e3cba8cb/757e9f0c866d40b2b5bab4b053c2d77a/FLAG795ffb42c [2021-11-20 23:17:57,141 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:17:57,142 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i [2021-11-20 23:17:57,173 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P/data/1e3cba8cb/757e9f0c866d40b2b5bab4b053c2d77a/FLAG795ffb42c [2021-11-20 23:17:57,343 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P/data/1e3cba8cb/757e9f0c866d40b2b5bab4b053c2d77a [2021-11-20 23:17:57,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:17:57,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:17:57,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:17:57,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:17:57,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:17:57,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:17:57" (1/1) ... [2021-11-20 23:17:57,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35beeca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:57, skipping insertion in model container [2021-11-20 23:17:57,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:17:57" (1/1) ... [2021-11-20 23:17:57,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:17:57,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:17:58,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:17:58,037 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:17:58,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:17:58,183 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:17:58,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:58 WrapperNode [2021-11-20 23:17:58,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:17:58,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:17:58,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:17:58,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:17:58,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:58" (1/1) ... [2021-11-20 23:17:58,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:58" (1/1) ... [2021-11-20 23:17:58,253 INFO L137 Inliner]: procedures = 368, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 176 [2021-11-20 23:17:58,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:17:58,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:17:58,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:17:58,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:17:58,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:58" (1/1) ... [2021-11-20 23:17:58,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:58" (1/1) ... [2021-11-20 23:17:58,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:58" (1/1) ... [2021-11-20 23:17:58,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:58" (1/1) ... [2021-11-20 23:17:58,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:58" (1/1) ... [2021-11-20 23:17:58,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:58" (1/1) ... [2021-11-20 23:17:58,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:58" (1/1) ... [2021-11-20 23:17:58,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:17:58,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:17:58,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:17:58,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:17:58,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:58" (1/1) ... [2021-11-20 23:17:58,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:17:58,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:17:58,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:17:58,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:17:58,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:17:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:17:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:17:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:17:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:17:58,411 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-20 23:17:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:17:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:17:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:17:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-20 23:17:58,412 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-20 23:17:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:17:58,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:17:58,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:17:58,414 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 23:17:58,564 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:17:58,566 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:17:59,067 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:17:59,078 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:17:59,078 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 23:17:59,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:17:59 BoogieIcfgContainer [2021-11-20 23:17:59,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:17:59,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:17:59,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:17:59,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:17:59,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:17:57" (1/3) ... [2021-11-20 23:17:59,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec6ee5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:17:59, skipping insertion in model container [2021-11-20 23:17:59,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:17:58" (2/3) ... [2021-11-20 23:17:59,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec6ee5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:17:59, skipping insertion in model container [2021-11-20 23:17:59,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:17:59" (3/3) ... [2021-11-20 23:17:59,089 INFO L111 eAbstractionObserver]: Analyzing ICFG 09-regions_01-list_rc.i [2021-11-20 23:17:59,095 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 23:17:59,095 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:17:59,095 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2021-11-20 23:17:59,095 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 23:17:59,141 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,141 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,142 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,142 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,143 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,143 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,143 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,143 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,144 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,144 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,144 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,144 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,145 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,146 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,146 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,147 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,147 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,147 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,147 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,148 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,148 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,148 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,149 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,149 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,149 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,149 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,149 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,151 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,152 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,152 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,152 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,152 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,152 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,152 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,154 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,154 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,154 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,154 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,154 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,154 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,155 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,155 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,155 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,155 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,155 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,156 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,156 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,156 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,156 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,156 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,157 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,157 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,157 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,157 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,157 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,158 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,158 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,158 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,158 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,158 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,159 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,159 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,159 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,159 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,159 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,160 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,160 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,162 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,162 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,166 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,166 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,166 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,172 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,172 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,172 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,172 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,172 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,173 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,175 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,175 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,175 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,175 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,175 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,175 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,175 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,176 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,176 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,176 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,176 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,176 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,176 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,177 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,177 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,177 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,177 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,177 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,177 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,177 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,178 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,178 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,178 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,178 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,178 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,178 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,178 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,179 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,179 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,179 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,179 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,179 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,179 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,179 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,180 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,180 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,180 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,180 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,180 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,180 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,181 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,181 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,181 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,181 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,181 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,181 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,181 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,182 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,182 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,182 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,182 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,182 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,183 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,183 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem34#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,183 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem34#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,183 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem34#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,186 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem34#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem34#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem34#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem34#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem34#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem34#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem34#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem34#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem34#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,189 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,189 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,189 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,189 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,189 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,189 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,190 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,190 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,190 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,191 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,192 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,192 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,192 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,192 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,193 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,193 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,193 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,193 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,193 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,198 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,200 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,201 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,201 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,201 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,201 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,201 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,201 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,201 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,202 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,219 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,219 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,219 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,220 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,222 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,222 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,222 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,222 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,225 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,225 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,225 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,226 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,226 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,226 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~x#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,226 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,226 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,226 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,226 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,227 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,227 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,227 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,227 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,227 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,227 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem34#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,227 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,228 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,228 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~p~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,228 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,228 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,228 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem34#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,228 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 23:17:59,232 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-20 23:17:59,279 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:17:59,286 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:17:59,286 INFO L340 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2021-11-20 23:17:59,302 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-20 23:17:59,315 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 207 transitions, 419 flow [2021-11-20 23:17:59,318 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 207 transitions, 419 flow [2021-11-20 23:17:59,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 211 places, 207 transitions, 419 flow [2021-11-20 23:17:59,396 INFO L129 PetriNetUnfolder]: 0/206 cut-off events. [2021-11-20 23:17:59,396 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 23:17:59,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 206 events. 0/206 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 86 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-11-20 23:17:59,404 INFO L116 LiptonReduction]: Number of co-enabled transitions 4288 [2021-11-20 23:18:21,205 WARN L227 SmtUtils]: Spent 8.37s on a formula simplification. DAG size of input: 123 DAG size of output: 116 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-20 23:18:31,109 WARN L227 SmtUtils]: Spent 6.56s on a formula simplification. DAG size of input: 123 DAG size of output: 116 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-20 23:19:37,493 WARN L227 SmtUtils]: Spent 55.38s on a formula simplification. DAG size of input: 194 DAG size of output: 190 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-20 23:19:58,685 WARN L227 SmtUtils]: Spent 21.19s on a formula simplification that was a NOOP. DAG size: 180 (called from [L 268] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-20 23:20:52,702 WARN L227 SmtUtils]: Spent 54.01s on a formula simplification. DAG size of input: 194 DAG size of output: 190 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-20 23:21:24,068 WARN L227 SmtUtils]: Spent 31.36s on a formula simplification that was a NOOP. DAG size: 180 (called from [L 268] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-20 23:21:52,023 WARN L227 SmtUtils]: Spent 27.89s on a formula simplification. DAG size of input: 307 DAG size of output: 305 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-20 23:22:02,019 WARN L227 SmtUtils]: Spent 9.99s on a formula simplification that was a NOOP. DAG size: 277 (called from [L 268] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-20 23:24:37,715 WARN L227 SmtUtils]: Spent 2.59m on a formula simplification. DAG size of input: 307 DAG size of output: 305 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-20 23:25:02,910 WARN L227 SmtUtils]: Spent 25.19s on a formula simplification that was a NOOP. DAG size: 277 (called from [L 268] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-20 23:25:03,134 INFO L131 LiptonReduction]: Checked pairs total: 60039 [2021-11-20 23:25:03,134 INFO L133 LiptonReduction]: Total number of compositions: 219 [2021-11-20 23:25:03,147 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 68 transitions, 141 flow [2021-11-20 23:25:03,212 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 764 states, 725 states have (on average 2.0124137931034483) internal successors, (1459), 763 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:03,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 764 states, 725 states have (on average 2.0124137931034483) internal successors, (1459), 763 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:03,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-11-20 23:25:03,221 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:03,222 INFO L514 BasicCegarLoop]: trace histogram [1] [2021-11-20 23:25:03,222 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:03,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:03,233 INFO L85 PathProgramCache]: Analyzing trace with hash 707, now seen corresponding path program 1 times [2021-11-20 23:25:03,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:03,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564281185] [2021-11-20 23:25:03,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:03,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:03,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:03,363 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:03,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564281185] [2021-11-20 23:25:03,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564281185] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:03,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:03,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-11-20 23:25:03,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179349643] [2021-11-20 23:25:03,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:03,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 23:25:03,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:03,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 23:25:03,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:25:03,404 INFO L87 Difference]: Start difference. First operand has 764 states, 725 states have (on average 2.0124137931034483) internal successors, (1459), 763 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:03,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:03,608 INFO L93 Difference]: Finished difference Result 680 states and 1302 transitions. [2021-11-20 23:25:03,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 23:25:03,610 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2021-11-20 23:25:03,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:03,630 INFO L225 Difference]: With dead ends: 680 [2021-11-20 23:25:03,630 INFO L226 Difference]: Without dead ends: 680 [2021-11-20 23:25:03,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:25:03,634 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:03,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 23:25:03,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2021-11-20 23:25:03,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 680. [2021-11-20 23:25:03,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 663 states have (on average 1.9638009049773755) internal successors, (1302), 679 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:03,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1302 transitions. [2021-11-20 23:25:03,759 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1302 transitions. Word has length 1 [2021-11-20 23:25:03,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:03,759 INFO L470 AbstractCegarLoop]: Abstraction has 680 states and 1302 transitions. [2021-11-20 23:25:03,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:03,760 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1302 transitions. [2021-11-20 23:25:03,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-20 23:25:03,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:03,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:03,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:25:03,761 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:03,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:03,762 INFO L85 PathProgramCache]: Analyzing trace with hash -2008804071, now seen corresponding path program 1 times [2021-11-20 23:25:03,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:03,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788742730] [2021-11-20 23:25:03,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:03,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:04,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:04,067 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:04,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788742730] [2021-11-20 23:25:04,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788742730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:04,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:04,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:25:04,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419914947] [2021-11-20 23:25:04,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:04,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:25:04,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:04,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:25:04,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:25:04,070 INFO L87 Difference]: Start difference. First operand 680 states and 1302 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:05,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:05,054 INFO L93 Difference]: Finished difference Result 1208 states and 2300 transitions. [2021-11-20 23:25:05,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:25:05,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-20 23:25:05,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:05,065 INFO L225 Difference]: With dead ends: 1208 [2021-11-20 23:25:05,065 INFO L226 Difference]: Without dead ends: 1208 [2021-11-20 23:25:05,066 INFO L932 BasicCegarLoop]: 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 [2021-11-20 23:25:05,067 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 95 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:05,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 32 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-20 23:25:05,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2021-11-20 23:25:05,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 786. [2021-11-20 23:25:05,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 772 states have (on average 1.961139896373057) internal successors, (1514), 785 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:05,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1514 transitions. [2021-11-20 23:25:05,113 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1514 transitions. Word has length 9 [2021-11-20 23:25:05,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:05,114 INFO L470 AbstractCegarLoop]: Abstraction has 786 states and 1514 transitions. [2021-11-20 23:25:05,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:05,114 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1514 transitions. [2021-11-20 23:25:05,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-20 23:25:05,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:05,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:05,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:25:05,116 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:05,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:05,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1847846904, now seen corresponding path program 1 times [2021-11-20 23:25:05,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:05,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917632130] [2021-11-20 23:25:05,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:05,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:05,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:05,254 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:05,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917632130] [2021-11-20 23:25:05,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917632130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:05,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:05,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:25:05,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949064317] [2021-11-20 23:25:05,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:05,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:25:05,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:05,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:25:05,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:25:05,257 INFO L87 Difference]: Start difference. First operand 786 states and 1514 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:05,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:05,714 INFO L93 Difference]: Finished difference Result 842 states and 1622 transitions. [2021-11-20 23:25:05,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:25:05,714 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-20 23:25:05,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:05,721 INFO L225 Difference]: With dead ends: 842 [2021-11-20 23:25:05,721 INFO L226 Difference]: Without dead ends: 842 [2021-11-20 23:25:05,722 INFO L932 BasicCegarLoop]: 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 [2021-11-20 23:25:05,731 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 36 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:05,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 30 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 23:25:05,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2021-11-20 23:25:05,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 842. [2021-11-20 23:25:05,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 828 states have (on average 1.958937198067633) internal successors, (1622), 841 states have internal predecessors, (1622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:05,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1622 transitions. [2021-11-20 23:25:05,801 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1622 transitions. Word has length 9 [2021-11-20 23:25:05,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:05,801 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1622 transitions. [2021-11-20 23:25:05,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:05,801 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1622 transitions. [2021-11-20 23:25:05,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 23:25:05,802 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:05,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:05,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:25:05,803 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:05,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:05,803 INFO L85 PathProgramCache]: Analyzing trace with hash -63678819, now seen corresponding path program 1 times [2021-11-20 23:25:05,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:05,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213987315] [2021-11-20 23:25:05,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:05,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:06,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:06,047 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:06,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213987315] [2021-11-20 23:25:06,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213987315] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:06,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:06,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 23:25:06,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681487676] [2021-11-20 23:25:06,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:06,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 23:25:06,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:06,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 23:25:06,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:25:06,049 INFO L87 Difference]: Start difference. First operand 842 states and 1622 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:07,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:07,388 INFO L93 Difference]: Finished difference Result 864 states and 1632 transitions. [2021-11-20 23:25:07,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 23:25:07,388 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-20 23:25:07,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:07,394 INFO L225 Difference]: With dead ends: 864 [2021-11-20 23:25:07,394 INFO L226 Difference]: Without dead ends: 864 [2021-11-20 23:25:07,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2021-11-20 23:25:07,396 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 250 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:07,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 41 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 23:25:07,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2021-11-20 23:25:07,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 804. [2021-11-20 23:25:07,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 791 states have (on average 1.95448798988622) internal successors, (1546), 803 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:07,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1546 transitions. [2021-11-20 23:25:07,426 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1546 transitions. Word has length 12 [2021-11-20 23:25:07,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:07,427 INFO L470 AbstractCegarLoop]: Abstraction has 804 states and 1546 transitions. [2021-11-20 23:25:07,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:07,427 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1546 transitions. [2021-11-20 23:25:07,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 23:25:07,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:07,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:07,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:25:07,429 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:07,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:07,432 INFO L85 PathProgramCache]: Analyzing trace with hash 248332340, now seen corresponding path program 1 times [2021-11-20 23:25:07,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:07,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022144827] [2021-11-20 23:25:07,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:07,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:07,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:07,668 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:07,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022144827] [2021-11-20 23:25:07,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022144827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:07,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:07,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 23:25:07,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819575258] [2021-11-20 23:25:07,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:07,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 23:25:07,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:07,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 23:25:07,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:25:07,670 INFO L87 Difference]: Start difference. First operand 804 states and 1546 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:09,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:09,599 INFO L93 Difference]: Finished difference Result 1207 states and 2262 transitions. [2021-11-20 23:25:09,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 23:25:09,599 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-20 23:25:09,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:09,609 INFO L225 Difference]: With dead ends: 1207 [2021-11-20 23:25:09,609 INFO L226 Difference]: Without dead ends: 1207 [2021-11-20 23:25:09,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2021-11-20 23:25:09,611 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 298 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:09,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 14 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:25:09,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2021-11-20 23:25:09,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 808. [2021-11-20 23:25:09,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 795 states have (on average 1.9547169811320755) internal successors, (1554), 807 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:09,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1554 transitions. [2021-11-20 23:25:09,649 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1554 transitions. Word has length 12 [2021-11-20 23:25:09,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:09,649 INFO L470 AbstractCegarLoop]: Abstraction has 808 states and 1554 transitions. [2021-11-20 23:25:09,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:09,649 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1554 transitions. [2021-11-20 23:25:09,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 23:25:09,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:09,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:09,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:25:09,656 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:09,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:09,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1366736958, now seen corresponding path program 2 times [2021-11-20 23:25:09,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:09,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343426733] [2021-11-20 23:25:09,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:09,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:09,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:09,875 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:09,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343426733] [2021-11-20 23:25:09,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343426733] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:09,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:09,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 23:25:09,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109442332] [2021-11-20 23:25:09,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:09,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 23:25:09,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:09,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 23:25:09,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:25:09,877 INFO L87 Difference]: Start difference. First operand 808 states and 1554 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:12,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:12,103 INFO L93 Difference]: Finished difference Result 1658 states and 3126 transitions. [2021-11-20 23:25:12,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 23:25:12,104 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-20 23:25:12,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:12,115 INFO L225 Difference]: With dead ends: 1658 [2021-11-20 23:25:12,115 INFO L226 Difference]: Without dead ends: 1658 [2021-11-20 23:25:12,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2021-11-20 23:25:12,117 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 310 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:12,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 32 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 23:25:12,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2021-11-20 23:25:12,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 812. [2021-11-20 23:25:12,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 799 states have (on average 1.9549436795994994) internal successors, (1562), 811 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:12,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1562 transitions. [2021-11-20 23:25:12,152 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1562 transitions. Word has length 12 [2021-11-20 23:25:12,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:12,152 INFO L470 AbstractCegarLoop]: Abstraction has 812 states and 1562 transitions. [2021-11-20 23:25:12,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:12,152 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1562 transitions. [2021-11-20 23:25:12,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 23:25:12,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:12,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:12,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 23:25:12,154 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:12,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:12,154 INFO L85 PathProgramCache]: Analyzing trace with hash 599768126, now seen corresponding path program 3 times [2021-11-20 23:25:12,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:12,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615581932] [2021-11-20 23:25:12,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:12,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:12,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:12,327 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:12,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615581932] [2021-11-20 23:25:12,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615581932] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:12,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:12,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 23:25:12,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621544675] [2021-11-20 23:25:12,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:12,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 23:25:12,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:12,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 23:25:12,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:25:12,329 INFO L87 Difference]: Start difference. First operand 812 states and 1562 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:13,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:13,920 INFO L93 Difference]: Finished difference Result 1695 states and 3201 transitions. [2021-11-20 23:25:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 23:25:13,920 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-20 23:25:13,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:13,933 INFO L225 Difference]: With dead ends: 1695 [2021-11-20 23:25:13,933 INFO L226 Difference]: Without dead ends: 1695 [2021-11-20 23:25:13,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-20 23:25:13,935 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 273 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:13,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 25 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 23:25:13,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2021-11-20 23:25:13,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 812. [2021-11-20 23:25:13,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 799 states have (on average 1.9549436795994994) internal successors, (1562), 811 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:13,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1562 transitions. [2021-11-20 23:25:13,977 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1562 transitions. Word has length 12 [2021-11-20 23:25:13,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:13,977 INFO L470 AbstractCegarLoop]: Abstraction has 812 states and 1562 transitions. [2021-11-20 23:25:13,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:13,978 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1562 transitions. [2021-11-20 23:25:13,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 23:25:13,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:13,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:13,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 23:25:13,979 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:13,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:13,980 INFO L85 PathProgramCache]: Analyzing trace with hash 2077494260, now seen corresponding path program 4 times [2021-11-20 23:25:13,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:13,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893036298] [2021-11-20 23:25:13,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:13,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:14,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:14,181 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:14,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893036298] [2021-11-20 23:25:14,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893036298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:14,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:14,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 23:25:14,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738356306] [2021-11-20 23:25:14,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:14,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 23:25:14,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:14,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 23:25:14,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:25:14,183 INFO L87 Difference]: Start difference. First operand 812 states and 1562 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:15,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:15,783 INFO L93 Difference]: Finished difference Result 1606 states and 3067 transitions. [2021-11-20 23:25:15,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 23:25:15,784 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-20 23:25:15,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:15,794 INFO L225 Difference]: With dead ends: 1606 [2021-11-20 23:25:15,795 INFO L226 Difference]: Without dead ends: 1606 [2021-11-20 23:25:15,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2021-11-20 23:25:15,796 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 236 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:15,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 34 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 903 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 23:25:15,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-11-20 23:25:15,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 812. [2021-11-20 23:25:15,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 799 states have (on average 1.9549436795994994) internal successors, (1562), 811 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:15,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1562 transitions. [2021-11-20 23:25:15,836 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1562 transitions. Word has length 12 [2021-11-20 23:25:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:15,837 INFO L470 AbstractCegarLoop]: Abstraction has 812 states and 1562 transitions. [2021-11-20 23:25:15,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:15,837 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1562 transitions. [2021-11-20 23:25:15,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 23:25:15,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:15,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:15,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 23:25:15,838 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:15,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:15,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1601094898, now seen corresponding path program 5 times [2021-11-20 23:25:15,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:15,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246248173] [2021-11-20 23:25:15,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:15,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:16,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:16,034 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:16,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246248173] [2021-11-20 23:25:16,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246248173] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:16,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:16,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 23:25:16,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945466670] [2021-11-20 23:25:16,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:16,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 23:25:16,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:16,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 23:25:16,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:25:16,036 INFO L87 Difference]: Start difference. First operand 812 states and 1562 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:18,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:18,929 INFO L93 Difference]: Finished difference Result 1661 states and 3177 transitions. [2021-11-20 23:25:18,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 23:25:18,929 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-20 23:25:18,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:18,937 INFO L225 Difference]: With dead ends: 1661 [2021-11-20 23:25:18,937 INFO L226 Difference]: Without dead ends: 1661 [2021-11-20 23:25:18,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-11-20 23:25:18,938 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 199 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:18,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 39 Invalid, 1730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-20 23:25:18,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2021-11-20 23:25:18,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 812. [2021-11-20 23:25:18,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 799 states have (on average 1.9549436795994994) internal successors, (1562), 811 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:19,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1562 transitions. [2021-11-20 23:25:19,000 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1562 transitions. Word has length 12 [2021-11-20 23:25:19,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:19,001 INFO L470 AbstractCegarLoop]: Abstraction has 812 states and 1562 transitions. [2021-11-20 23:25:19,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:19,001 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1562 transitions. [2021-11-20 23:25:19,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 23:25:19,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:19,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:19,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 23:25:19,002 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:19,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:19,003 INFO L85 PathProgramCache]: Analyzing trace with hash 93462968, now seen corresponding path program 6 times [2021-11-20 23:25:19,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:19,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252510948] [2021-11-20 23:25:19,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:19,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:19,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:19,204 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:19,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252510948] [2021-11-20 23:25:19,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252510948] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:19,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:19,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 23:25:19,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884968245] [2021-11-20 23:25:19,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:19,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 23:25:19,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:19,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 23:25:19,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:25:19,205 INFO L87 Difference]: Start difference. First operand 812 states and 1562 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:21,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:21,219 INFO L93 Difference]: Finished difference Result 1606 states and 3067 transitions. [2021-11-20 23:25:21,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 23:25:21,220 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-20 23:25:21,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:21,231 INFO L225 Difference]: With dead ends: 1606 [2021-11-20 23:25:21,231 INFO L226 Difference]: Without dead ends: 1606 [2021-11-20 23:25:21,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2021-11-20 23:25:21,233 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 219 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:21,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 31 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:25:21,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-11-20 23:25:21,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 809. [2021-11-20 23:25:21,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 796 states have (on average 1.9547738693467336) internal successors, (1556), 808 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:21,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1556 transitions. [2021-11-20 23:25:21,283 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1556 transitions. Word has length 12 [2021-11-20 23:25:21,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:21,283 INFO L470 AbstractCegarLoop]: Abstraction has 809 states and 1556 transitions. [2021-11-20 23:25:21,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:21,284 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1556 transitions. [2021-11-20 23:25:21,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 23:25:21,285 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:21,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:21,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 23:25:21,285 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:21,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:21,286 INFO L85 PathProgramCache]: Analyzing trace with hash 2059968052, now seen corresponding path program 7 times [2021-11-20 23:25:21,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:21,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836920255] [2021-11-20 23:25:21,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:21,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:21,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:21,522 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:21,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836920255] [2021-11-20 23:25:21,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836920255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:21,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:21,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 23:25:21,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239924744] [2021-11-20 23:25:21,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:21,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 23:25:21,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:21,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 23:25:21,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:25:21,524 INFO L87 Difference]: Start difference. First operand 809 states and 1556 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:23,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:23,288 INFO L93 Difference]: Finished difference Result 1580 states and 3019 transitions. [2021-11-20 23:25:23,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-20 23:25:23,289 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-20 23:25:23,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:23,297 INFO L225 Difference]: With dead ends: 1580 [2021-11-20 23:25:23,297 INFO L226 Difference]: Without dead ends: 1580 [2021-11-20 23:25:23,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2021-11-20 23:25:23,298 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 241 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:23,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 27 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 23:25:23,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2021-11-20 23:25:23,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 727. [2021-11-20 23:25:23,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 715 states have (on average 1.951048951048951) internal successors, (1395), 726 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:23,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1395 transitions. [2021-11-20 23:25:23,354 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1395 transitions. Word has length 12 [2021-11-20 23:25:23,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:23,354 INFO L470 AbstractCegarLoop]: Abstraction has 727 states and 1395 transitions. [2021-11-20 23:25:23,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1395 transitions. [2021-11-20 23:25:23,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-20 23:25:23,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:23,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:23,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 23:25:23,356 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:23,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:23,356 INFO L85 PathProgramCache]: Analyzing trace with hash -212080479, now seen corresponding path program 1 times [2021-11-20 23:25:23,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:23,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414508397] [2021-11-20 23:25:23,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:23,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:23,467 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:23,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414508397] [2021-11-20 23:25:23,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414508397] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:23,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:23,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:25:23,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059912324] [2021-11-20 23:25:23,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:23,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:25:23,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:23,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:25:23,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:25:23,469 INFO L87 Difference]: Start difference. First operand 727 states and 1395 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:24,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:24,252 INFO L93 Difference]: Finished difference Result 964 states and 1825 transitions. [2021-11-20 23:25:24,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:25:24,253 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-20 23:25:24,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:24,258 INFO L225 Difference]: With dead ends: 964 [2021-11-20 23:25:24,258 INFO L226 Difference]: Without dead ends: 938 [2021-11-20 23:25:24,258 INFO L932 BasicCegarLoop]: 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 [2021-11-20 23:25:24,259 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 73 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:24,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 38 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 23:25:24,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2021-11-20 23:25:24,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 833. [2021-11-20 23:25:24,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 821 states have (on average 1.9500609013398296) internal successors, (1601), 832 states have internal predecessors, (1601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:24,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1601 transitions. [2021-11-20 23:25:24,286 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1601 transitions. Word has length 15 [2021-11-20 23:25:24,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:24,286 INFO L470 AbstractCegarLoop]: Abstraction has 833 states and 1601 transitions. [2021-11-20 23:25:24,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:24,287 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1601 transitions. [2021-11-20 23:25:24,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-20 23:25:24,287 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:24,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:24,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 23:25:24,288 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:24,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:24,289 INFO L85 PathProgramCache]: Analyzing trace with hash 893385761, now seen corresponding path program 1 times [2021-11-20 23:25:24,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:24,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83452662] [2021-11-20 23:25:24,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:24,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:24,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:24,390 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:24,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83452662] [2021-11-20 23:25:24,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83452662] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:24,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:24,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:25:24,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586000283] [2021-11-20 23:25:24,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:24,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:25:24,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:24,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:25:24,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:25:24,393 INFO L87 Difference]: Start difference. First operand 833 states and 1601 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:24,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:24,865 INFO L93 Difference]: Finished difference Result 902 states and 1734 transitions. [2021-11-20 23:25:24,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:25:24,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-20 23:25:24,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:24,871 INFO L225 Difference]: With dead ends: 902 [2021-11-20 23:25:24,871 INFO L226 Difference]: Without dead ends: 902 [2021-11-20 23:25:24,871 INFO L932 BasicCegarLoop]: 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 [2021-11-20 23:25:24,872 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 35 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:24,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 29 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 23:25:24,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2021-11-20 23:25:24,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 885. [2021-11-20 23:25:24,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 873 states have (on average 1.9484536082474226) internal successors, (1701), 884 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:24,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1701 transitions. [2021-11-20 23:25:24,896 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1701 transitions. Word has length 15 [2021-11-20 23:25:24,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:24,897 INFO L470 AbstractCegarLoop]: Abstraction has 885 states and 1701 transitions. [2021-11-20 23:25:24,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:24,897 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1701 transitions. [2021-11-20 23:25:24,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:24,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:24,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:24,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 23:25:24,899 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:24,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:24,899 INFO L85 PathProgramCache]: Analyzing trace with hash 851444551, now seen corresponding path program 1 times [2021-11-20 23:25:24,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:24,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645469985] [2021-11-20 23:25:24,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:24,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:25,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:25,529 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:25,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645469985] [2021-11-20 23:25:25,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645469985] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:25,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:25,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:25:25,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639771880] [2021-11-20 23:25:25,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:25,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:25:25,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:25,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:25:25,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:25:25,531 INFO L87 Difference]: Start difference. First operand 885 states and 1701 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:27,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:27,225 INFO L93 Difference]: Finished difference Result 948 states and 1807 transitions. [2021-11-20 23:25:27,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 23:25:27,225 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:25:27,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:27,229 INFO L225 Difference]: With dead ends: 948 [2021-11-20 23:25:27,230 INFO L226 Difference]: Without dead ends: 948 [2021-11-20 23:25:27,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2021-11-20 23:25:27,230 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 146 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:27,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 62 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-20 23:25:27,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2021-11-20 23:25:27,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 911. [2021-11-20 23:25:27,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 899 states have (on average 1.949944382647386) internal successors, (1753), 910 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:27,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1753 transitions. [2021-11-20 23:25:27,255 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1753 transitions. Word has length 18 [2021-11-20 23:25:27,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:27,256 INFO L470 AbstractCegarLoop]: Abstraction has 911 states and 1753 transitions. [2021-11-20 23:25:27,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:27,256 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1753 transitions. [2021-11-20 23:25:27,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:27,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:27,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:27,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 23:25:27,258 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:27,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:27,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1713594917, now seen corresponding path program 2 times [2021-11-20 23:25:27,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:27,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290473034] [2021-11-20 23:25:27,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:27,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:27,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:27,649 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:27,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290473034] [2021-11-20 23:25:27,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290473034] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:27,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:27,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:25:27,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378937937] [2021-11-20 23:25:27,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:27,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:25:27,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:27,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:25:27,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:25:27,651 INFO L87 Difference]: Start difference. First operand 911 states and 1753 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:29,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:29,535 INFO L93 Difference]: Finished difference Result 971 states and 1851 transitions. [2021-11-20 23:25:29,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 23:25:29,535 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:25:29,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:29,540 INFO L225 Difference]: With dead ends: 971 [2021-11-20 23:25:29,540 INFO L226 Difference]: Without dead ends: 971 [2021-11-20 23:25:29,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=433, Unknown=0, NotChecked=0, Total=600 [2021-11-20 23:25:29,541 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 148 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:29,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 62 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 23:25:29,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2021-11-20 23:25:29,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 920. [2021-11-20 23:25:29,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 908 states have (on average 1.9504405286343611) internal successors, (1771), 919 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:29,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1771 transitions. [2021-11-20 23:25:29,577 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1771 transitions. Word has length 18 [2021-11-20 23:25:29,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:29,577 INFO L470 AbstractCegarLoop]: Abstraction has 920 states and 1771 transitions. [2021-11-20 23:25:29,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:29,577 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1771 transitions. [2021-11-20 23:25:29,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:29,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:29,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:29,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 23:25:29,579 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:29,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:29,579 INFO L85 PathProgramCache]: Analyzing trace with hash -658118329, now seen corresponding path program 3 times [2021-11-20 23:25:29,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:29,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677451055] [2021-11-20 23:25:29,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:29,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:29,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:29,907 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:29,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677451055] [2021-11-20 23:25:29,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677451055] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:29,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:29,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:25:29,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581933540] [2021-11-20 23:25:29,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:29,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:25:29,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:29,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:25:29,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:25:29,911 INFO L87 Difference]: Start difference. First operand 920 states and 1771 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:32,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:32,176 INFO L93 Difference]: Finished difference Result 999 states and 1905 transitions. [2021-11-20 23:25:32,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-20 23:25:32,177 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:25:32,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:32,185 INFO L225 Difference]: With dead ends: 999 [2021-11-20 23:25:32,185 INFO L226 Difference]: Without dead ends: 999 [2021-11-20 23:25:32,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=314, Invalid=742, Unknown=0, NotChecked=0, Total=1056 [2021-11-20 23:25:32,186 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 176 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:32,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 62 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 23:25:32,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2021-11-20 23:25:32,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 929. [2021-11-20 23:25:32,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 917 states have (on average 1.95092693565976) internal successors, (1789), 928 states have internal predecessors, (1789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:32,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1789 transitions. [2021-11-20 23:25:32,216 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1789 transitions. Word has length 18 [2021-11-20 23:25:32,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:32,216 INFO L470 AbstractCegarLoop]: Abstraction has 929 states and 1789 transitions. [2021-11-20 23:25:32,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:32,217 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1789 transitions. [2021-11-20 23:25:32,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:32,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:32,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:32,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 23:25:32,219 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:32,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:32,219 INFO L85 PathProgramCache]: Analyzing trace with hash 499567291, now seen corresponding path program 4 times [2021-11-20 23:25:32,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:32,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545521227] [2021-11-20 23:25:32,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:32,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:32,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:32,558 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:32,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545521227] [2021-11-20 23:25:32,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545521227] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:32,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:32,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:25:32,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888889906] [2021-11-20 23:25:32,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:32,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:25:32,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:32,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:25:32,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:25:32,559 INFO L87 Difference]: Start difference. First operand 929 states and 1789 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:34,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:34,949 INFO L93 Difference]: Finished difference Result 1012 states and 1929 transitions. [2021-11-20 23:25:34,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-20 23:25:34,949 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:25:34,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:34,957 INFO L225 Difference]: With dead ends: 1012 [2021-11-20 23:25:34,957 INFO L226 Difference]: Without dead ends: 1012 [2021-11-20 23:25:34,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 0 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=364, Invalid=826, Unknown=0, NotChecked=0, Total=1190 [2021-11-20 23:25:34,958 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 190 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:34,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 59 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 23:25:34,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2021-11-20 23:25:34,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 938. [2021-11-20 23:25:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 926 states have (on average 1.951403887688985) internal successors, (1807), 937 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:34,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1807 transitions. [2021-11-20 23:25:34,987 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1807 transitions. Word has length 18 [2021-11-20 23:25:34,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:34,987 INFO L470 AbstractCegarLoop]: Abstraction has 938 states and 1807 transitions. [2021-11-20 23:25:34,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:34,988 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1807 transitions. [2021-11-20 23:25:34,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:34,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:34,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:34,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 23:25:34,990 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:34,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:34,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1610437348, now seen corresponding path program 1 times [2021-11-20 23:25:34,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:34,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037418274] [2021-11-20 23:25:34,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:34,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:35,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:35,125 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:35,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037418274] [2021-11-20 23:25:35,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037418274] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:35,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:35,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 23:25:35,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704702921] [2021-11-20 23:25:35,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:35,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 23:25:35,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:35,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 23:25:35,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:25:35,128 INFO L87 Difference]: Start difference. First operand 938 states and 1807 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:36,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:36,078 INFO L93 Difference]: Finished difference Result 975 states and 1847 transitions. [2021-11-20 23:25:36,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 23:25:36,079 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:25:36,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:36,085 INFO L225 Difference]: With dead ends: 975 [2021-11-20 23:25:36,085 INFO L226 Difference]: Without dead ends: 975 [2021-11-20 23:25:36,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2021-11-20 23:25:36,087 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 253 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:36,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 34 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-20 23:25:36,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2021-11-20 23:25:36,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 908. [2021-11-20 23:25:36,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 896 states have (on average 1.9497767857142858) internal successors, (1747), 907 states have internal predecessors, (1747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:36,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1747 transitions. [2021-11-20 23:25:36,112 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1747 transitions. Word has length 18 [2021-11-20 23:25:36,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:36,112 INFO L470 AbstractCegarLoop]: Abstraction has 908 states and 1747 transitions. [2021-11-20 23:25:36,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:36,113 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1747 transitions. [2021-11-20 23:25:36,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:36,114 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:36,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:36,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 23:25:36,114 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:36,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:36,115 INFO L85 PathProgramCache]: Analyzing trace with hash 78035829, now seen corresponding path program 5 times [2021-11-20 23:25:36,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:36,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98424522] [2021-11-20 23:25:36,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:36,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:36,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:36,445 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:36,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98424522] [2021-11-20 23:25:36,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98424522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:36,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:36,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:25:36,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089724578] [2021-11-20 23:25:36,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:36,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:25:36,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:36,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:25:36,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:25:36,446 INFO L87 Difference]: Start difference. First operand 908 states and 1747 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:38,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:38,192 INFO L93 Difference]: Finished difference Result 1170 states and 2245 transitions. [2021-11-20 23:25:38,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 23:25:38,193 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:25:38,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:38,199 INFO L225 Difference]: With dead ends: 1170 [2021-11-20 23:25:38,199 INFO L226 Difference]: Without dead ends: 1170 [2021-11-20 23:25:38,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2021-11-20 23:25:38,200 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 174 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:38,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 95 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 23:25:38,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2021-11-20 23:25:38,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 928. [2021-11-20 23:25:38,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 916 states have (on average 1.9508733624454149) internal successors, (1787), 927 states have internal predecessors, (1787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:38,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1787 transitions. [2021-11-20 23:25:38,230 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1787 transitions. Word has length 18 [2021-11-20 23:25:38,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:38,230 INFO L470 AbstractCegarLoop]: Abstraction has 928 states and 1787 transitions. [2021-11-20 23:25:38,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:38,231 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1787 transitions. [2021-11-20 23:25:38,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:38,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:38,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:38,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 23:25:38,233 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:38,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:38,233 INFO L85 PathProgramCache]: Analyzing trace with hash 940186195, now seen corresponding path program 6 times [2021-11-20 23:25:38,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:38,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462180618] [2021-11-20 23:25:38,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:38,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:38,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:38,618 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:38,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462180618] [2021-11-20 23:25:38,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462180618] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:38,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:38,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:25:38,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323555614] [2021-11-20 23:25:38,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:38,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:25:38,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:38,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:25:38,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:25:38,620 INFO L87 Difference]: Start difference. First operand 928 states and 1787 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:40,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:40,535 INFO L93 Difference]: Finished difference Result 1193 states and 2289 transitions. [2021-11-20 23:25:40,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 23:25:40,536 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:25:40,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:40,540 INFO L225 Difference]: With dead ends: 1193 [2021-11-20 23:25:40,541 INFO L226 Difference]: Without dead ends: 1193 [2021-11-20 23:25:40,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2021-11-20 23:25:40,542 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 182 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:40,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 95 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:25:40,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2021-11-20 23:25:40,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 923. [2021-11-20 23:25:40,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 911 states have (on average 1.9506037321624587) internal successors, (1777), 922 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:40,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1777 transitions. [2021-11-20 23:25:40,573 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1777 transitions. Word has length 18 [2021-11-20 23:25:40,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:40,573 INFO L470 AbstractCegarLoop]: Abstraction has 923 states and 1777 transitions. [2021-11-20 23:25:40,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:40,573 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1777 transitions. [2021-11-20 23:25:40,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:40,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:40,575 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:40,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 23:25:40,575 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:40,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:40,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1431527051, now seen corresponding path program 7 times [2021-11-20 23:25:40,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:40,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649920411] [2021-11-20 23:25:40,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:40,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:40,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:40,918 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:40,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649920411] [2021-11-20 23:25:40,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649920411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:40,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:40,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:25:40,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438072517] [2021-11-20 23:25:40,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:40,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:25:40,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:40,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:25:40,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:25:40,920 INFO L87 Difference]: Start difference. First operand 923 states and 1777 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:42,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:42,860 INFO L93 Difference]: Finished difference Result 1221 states and 2343 transitions. [2021-11-20 23:25:42,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 23:25:42,860 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:25:42,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:42,863 INFO L225 Difference]: With dead ends: 1221 [2021-11-20 23:25:42,863 INFO L226 Difference]: Without dead ends: 1221 [2021-11-20 23:25:42,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=181, Invalid=469, Unknown=0, NotChecked=0, Total=650 [2021-11-20 23:25:42,864 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 186 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:42,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 95 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 23:25:42,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2021-11-20 23:25:42,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 918. [2021-11-20 23:25:42,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 906 states have (on average 1.9503311258278146) internal successors, (1767), 917 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:42,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1767 transitions. [2021-11-20 23:25:42,902 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1767 transitions. Word has length 18 [2021-11-20 23:25:42,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:42,902 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1767 transitions. [2021-11-20 23:25:42,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:42,903 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1767 transitions. [2021-11-20 23:25:42,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:42,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:42,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:42,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 23:25:42,905 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:42,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:42,905 INFO L85 PathProgramCache]: Analyzing trace with hash -273841431, now seen corresponding path program 8 times [2021-11-20 23:25:42,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:42,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215354232] [2021-11-20 23:25:42,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:42,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:43,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:43,136 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:43,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215354232] [2021-11-20 23:25:43,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215354232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:43,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:43,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:25:43,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594378283] [2021-11-20 23:25:43,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:43,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:25:43,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:43,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:25:43,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:25:43,137 INFO L87 Difference]: Start difference. First operand 918 states and 1767 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:45,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:45,652 INFO L93 Difference]: Finished difference Result 1215 states and 2328 transitions. [2021-11-20 23:25:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-20 23:25:45,653 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:25:45,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:45,656 INFO L225 Difference]: With dead ends: 1215 [2021-11-20 23:25:45,656 INFO L226 Difference]: Without dead ends: 1215 [2021-11-20 23:25:45,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2021-11-20 23:25:45,658 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 211 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:45,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 92 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 23:25:45,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2021-11-20 23:25:45,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 913. [2021-11-20 23:25:45,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 901 states have (on average 1.9500554938956716) internal successors, (1757), 912 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:45,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1757 transitions. [2021-11-20 23:25:45,681 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1757 transitions. Word has length 18 [2021-11-20 23:25:45,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:45,681 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1757 transitions. [2021-11-20 23:25:45,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:45,682 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1757 transitions. [2021-11-20 23:25:45,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:45,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:45,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:45,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-20 23:25:45,683 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:45,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:45,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1939782722, now seen corresponding path program 1 times [2021-11-20 23:25:45,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:45,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348234928] [2021-11-20 23:25:45,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:45,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:45,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:45,873 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:45,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348234928] [2021-11-20 23:25:45,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348234928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:45,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:45,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:25:45,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280624025] [2021-11-20 23:25:45,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:45,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:25:45,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:45,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:25:45,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:25:45,874 INFO L87 Difference]: Start difference. First operand 913 states and 1757 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:47,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:47,776 INFO L93 Difference]: Finished difference Result 1788 states and 3369 transitions. [2021-11-20 23:25:47,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-20 23:25:47,776 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:25:47,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:47,779 INFO L225 Difference]: With dead ends: 1788 [2021-11-20 23:25:47,779 INFO L226 Difference]: Without dead ends: 1788 [2021-11-20 23:25:47,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=206, Invalid=606, Unknown=0, NotChecked=0, Total=812 [2021-11-20 23:25:47,780 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 376 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 1793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:47,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 126 Invalid, 1793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:25:47,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2021-11-20 23:25:47,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1017. [2021-11-20 23:25:47,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 1005 states have (on average 1.9592039800995025) internal successors, (1969), 1016 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:47,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1969 transitions. [2021-11-20 23:25:47,827 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1969 transitions. Word has length 18 [2021-11-20 23:25:47,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:47,828 INFO L470 AbstractCegarLoop]: Abstraction has 1017 states and 1969 transitions. [2021-11-20 23:25:47,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:47,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1969 transitions. [2021-11-20 23:25:47,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:47,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:47,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:47,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-20 23:25:47,830 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:47,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:47,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1715510527, now seen corresponding path program 9 times [2021-11-20 23:25:47,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:47,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881095698] [2021-11-20 23:25:47,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:47,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:48,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:48,033 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:48,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881095698] [2021-11-20 23:25:48,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881095698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:48,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:48,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:25:48,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240773396] [2021-11-20 23:25:48,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:48,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:25:48,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:48,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:25:48,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:25:48,034 INFO L87 Difference]: Start difference. First operand 1017 states and 1969 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:49,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:49,814 INFO L93 Difference]: Finished difference Result 1540 states and 2930 transitions. [2021-11-20 23:25:49,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-20 23:25:49,814 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:25:49,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:49,816 INFO L225 Difference]: With dead ends: 1540 [2021-11-20 23:25:49,816 INFO L226 Difference]: Without dead ends: 1540 [2021-11-20 23:25:49,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=391, Invalid=1015, Unknown=0, NotChecked=0, Total=1406 [2021-11-20 23:25:49,817 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 298 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:49,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 123 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-20 23:25:49,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2021-11-20 23:25:49,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 981. [2021-11-20 23:25:49,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 969 states have (on average 1.9535603715170278) internal successors, (1893), 980 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:49,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1893 transitions. [2021-11-20 23:25:49,843 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1893 transitions. Word has length 18 [2021-11-20 23:25:49,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:49,843 INFO L470 AbstractCegarLoop]: Abstraction has 981 states and 1893 transitions. [2021-11-20 23:25:49,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:49,844 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1893 transitions. [2021-11-20 23:25:49,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:49,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:49,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:49,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-20 23:25:49,845 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:49,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:49,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1490835587, now seen corresponding path program 10 times [2021-11-20 23:25:49,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:49,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748020819] [2021-11-20 23:25:49,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:49,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:50,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:50,116 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:50,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748020819] [2021-11-20 23:25:50,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748020819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:50,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:50,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:25:50,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922232778] [2021-11-20 23:25:50,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:50,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:25:50,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:50,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:25:50,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:25:50,119 INFO L87 Difference]: Start difference. First operand 981 states and 1893 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:51,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:51,545 INFO L93 Difference]: Finished difference Result 1646 states and 3186 transitions. [2021-11-20 23:25:51,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 23:25:51,545 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:25:51,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:51,548 INFO L225 Difference]: With dead ends: 1646 [2021-11-20 23:25:51,548 INFO L226 Difference]: Without dead ends: 1646 [2021-11-20 23:25:51,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2021-11-20 23:25:51,549 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 181 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:51,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 120 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-20 23:25:51,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2021-11-20 23:25:51,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1017. [2021-11-20 23:25:51,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 1005 states have (on average 1.955223880597015) internal successors, (1965), 1016 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:51,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1965 transitions. [2021-11-20 23:25:51,574 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1965 transitions. Word has length 18 [2021-11-20 23:25:51,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:51,574 INFO L470 AbstractCegarLoop]: Abstraction has 1017 states and 1965 transitions. [2021-11-20 23:25:51,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:51,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1965 transitions. [2021-11-20 23:25:51,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:51,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:51,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:51,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-20 23:25:51,576 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:51,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:51,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1941981343, now seen corresponding path program 11 times [2021-11-20 23:25:51,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:51,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747848097] [2021-11-20 23:25:51,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:51,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:51,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:51,826 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:51,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747848097] [2021-11-20 23:25:51,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747848097] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:51,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:51,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 23:25:51,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563248572] [2021-11-20 23:25:51,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:51,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 23:25:51,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:51,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 23:25:51,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-20 23:25:51,828 INFO L87 Difference]: Start difference. First operand 1017 states and 1965 transitions. Second operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:53,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:53,690 INFO L93 Difference]: Finished difference Result 1669 states and 3230 transitions. [2021-11-20 23:25:53,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 23:25:53,691 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:25:53,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:53,693 INFO L225 Difference]: With dead ends: 1669 [2021-11-20 23:25:53,694 INFO L226 Difference]: Without dead ends: 1669 [2021-11-20 23:25:53,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2021-11-20 23:25:53,694 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 185 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:53,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 120 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:25:53,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2021-11-20 23:25:53,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1026. [2021-11-20 23:25:53,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 1014 states have (on average 1.955621301775148) internal successors, (1983), 1025 states have internal predecessors, (1983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:53,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1983 transitions. [2021-11-20 23:25:53,718 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1983 transitions. Word has length 18 [2021-11-20 23:25:53,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:53,718 INFO L470 AbstractCegarLoop]: Abstraction has 1026 states and 1983 transitions. [2021-11-20 23:25:53,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:53,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1983 transitions. [2021-11-20 23:25:53,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:53,720 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:53,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:53,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-20 23:25:53,720 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:53,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:53,721 INFO L85 PathProgramCache]: Analyzing trace with hash -18727293, now seen corresponding path program 12 times [2021-11-20 23:25:53,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:53,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794081579] [2021-11-20 23:25:53,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:53,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:53,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:54,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:54,023 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:54,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794081579] [2021-11-20 23:25:54,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794081579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:54,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:54,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:25:54,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136616754] [2021-11-20 23:25:54,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:54,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:25:54,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:54,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:25:54,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:25:54,025 INFO L87 Difference]: Start difference. First operand 1026 states and 1983 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:55,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:55,559 INFO L93 Difference]: Finished difference Result 1697 states and 3284 transitions. [2021-11-20 23:25:55,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 23:25:55,559 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:25:55,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:55,564 INFO L225 Difference]: With dead ends: 1697 [2021-11-20 23:25:55,564 INFO L226 Difference]: Without dead ends: 1697 [2021-11-20 23:25:55,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=165, Invalid=485, Unknown=0, NotChecked=0, Total=650 [2021-11-20 23:25:55,565 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 193 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:55,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 120 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-20 23:25:55,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2021-11-20 23:25:55,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1035. [2021-11-20 23:25:55,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1023 states have (on average 1.9560117302052786) internal successors, (2001), 1034 states have internal predecessors, (2001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:55,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 2001 transitions. [2021-11-20 23:25:55,596 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 2001 transitions. Word has length 18 [2021-11-20 23:25:55,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:55,596 INFO L470 AbstractCegarLoop]: Abstraction has 1035 states and 2001 transitions. [2021-11-20 23:25:55,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:55,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 2001 transitions. [2021-11-20 23:25:55,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:55,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:55,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:55,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-20 23:25:55,598 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:55,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:55,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1138958327, now seen corresponding path program 13 times [2021-11-20 23:25:55,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:55,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072670386] [2021-11-20 23:25:55,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:55,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:55,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:55,808 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:55,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072670386] [2021-11-20 23:25:55,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072670386] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:55,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:55,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:25:55,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958464834] [2021-11-20 23:25:55,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:55,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:25:55,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:55,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:25:55,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:25:55,810 INFO L87 Difference]: Start difference. First operand 1035 states and 2001 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:58,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:25:58,723 INFO L93 Difference]: Finished difference Result 1801 states and 3486 transitions. [2021-11-20 23:25:58,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-20 23:25:58,725 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:25:58,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:25:58,731 INFO L225 Difference]: With dead ends: 1801 [2021-11-20 23:25:58,731 INFO L226 Difference]: Without dead ends: 1801 [2021-11-20 23:25:58,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=393, Invalid=1167, Unknown=0, NotChecked=0, Total=1560 [2021-11-20 23:25:58,733 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 220 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 1836 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:25:58,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 108 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1836 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:25:58,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2021-11-20 23:25:58,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1044. [2021-11-20 23:25:58,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 1032 states have (on average 1.9563953488372092) internal successors, (2019), 1043 states have internal predecessors, (2019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:58,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 2019 transitions. [2021-11-20 23:25:58,763 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 2019 transitions. Word has length 18 [2021-11-20 23:25:58,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:25:58,763 INFO L470 AbstractCegarLoop]: Abstraction has 1044 states and 2019 transitions. [2021-11-20 23:25:58,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:25:58,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 2019 transitions. [2021-11-20 23:25:58,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:25:58,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:25:58,765 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:25:58,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-20 23:25:58,765 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:25:58,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:25:58,766 INFO L85 PathProgramCache]: Analyzing trace with hash -526982964, now seen corresponding path program 2 times [2021-11-20 23:25:58,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:25:58,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508002678] [2021-11-20 23:25:58,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:25:58,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:25:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:25:58,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:25:58,928 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:25:58,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508002678] [2021-11-20 23:25:58,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508002678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:25:58,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:25:58,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:25:58,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242305144] [2021-11-20 23:25:58,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:25:58,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:25:58,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:25:58,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:25:58,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:25:58,929 INFO L87 Difference]: Start difference. First operand 1044 states and 2019 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:01,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:01,423 INFO L93 Difference]: Finished difference Result 1901 states and 3613 transitions. [2021-11-20 23:26:01,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 23:26:01,423 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:01,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:01,426 INFO L225 Difference]: With dead ends: 1901 [2021-11-20 23:26:01,426 INFO L226 Difference]: Without dead ends: 1901 [2021-11-20 23:26:01,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2021-11-20 23:26:01,427 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 216 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 2099 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 2170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:01,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 193 Invalid, 2170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2099 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 23:26:01,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1901 states. [2021-11-20 23:26:01,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1901 to 1032. [2021-11-20 23:26:01,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 1020 states have (on average 1.9598039215686274) internal successors, (1999), 1031 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:01,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1999 transitions. [2021-11-20 23:26:01,457 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1999 transitions. Word has length 18 [2021-11-20 23:26:01,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:01,457 INFO L470 AbstractCegarLoop]: Abstraction has 1032 states and 1999 transitions. [2021-11-20 23:26:01,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:01,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1999 transitions. [2021-11-20 23:26:01,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:01,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:01,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:01,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-20 23:26:01,459 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:01,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:01,459 INFO L85 PathProgramCache]: Analyzing trace with hash -302710769, now seen corresponding path program 14 times [2021-11-20 23:26:01,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:01,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606463003] [2021-11-20 23:26:01,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:01,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:01,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:01,672 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:01,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606463003] [2021-11-20 23:26:01,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606463003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:01,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:01,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:01,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477507999] [2021-11-20 23:26:01,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:01,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:01,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:01,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:01,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:01,673 INFO L87 Difference]: Start difference. First operand 1032 states and 1999 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:03,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:03,942 INFO L93 Difference]: Finished difference Result 1781 states and 3422 transitions. [2021-11-20 23:26:03,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 23:26:03,942 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:03,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:03,950 INFO L225 Difference]: With dead ends: 1781 [2021-11-20 23:26:03,950 INFO L226 Difference]: Without dead ends: 1781 [2021-11-20 23:26:03,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2021-11-20 23:26:03,952 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 180 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 2139 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 2176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:03,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 182 Invalid, 2176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2139 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-20 23:26:03,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2021-11-20 23:26:03,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 986. [2021-11-20 23:26:03,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 974 states have (on average 1.9537987679671458) internal successors, (1903), 985 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:03,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1903 transitions. [2021-11-20 23:26:03,975 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1903 transitions. Word has length 18 [2021-11-20 23:26:03,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:03,976 INFO L470 AbstractCegarLoop]: Abstraction has 986 states and 1903 transitions. [2021-11-20 23:26:03,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:03,976 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1903 transitions. [2021-11-20 23:26:03,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:03,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:03,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:03,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-20 23:26:03,979 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:03,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:03,979 INFO L85 PathProgramCache]: Analyzing trace with hash -818174930, now seen corresponding path program 3 times [2021-11-20 23:26:03,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:03,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227265601] [2021-11-20 23:26:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:03,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:04,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:04,156 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:04,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227265601] [2021-11-20 23:26:04,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227265601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:04,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:04,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:04,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074878131] [2021-11-20 23:26:04,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:04,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:04,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:04,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:04,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:04,158 INFO L87 Difference]: Start difference. First operand 986 states and 1903 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:06,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:06,064 INFO L93 Difference]: Finished difference Result 2525 states and 4765 transitions. [2021-11-20 23:26:06,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 23:26:06,065 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:06,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:06,069 INFO L225 Difference]: With dead ends: 2525 [2021-11-20 23:26:06,070 INFO L226 Difference]: Without dead ends: 2517 [2021-11-20 23:26:06,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=510, Unknown=0, NotChecked=0, Total=650 [2021-11-20 23:26:06,071 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 296 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:06,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 237 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:26:06,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2021-11-20 23:26:06,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 1099. [2021-11-20 23:26:06,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 1087 states have (on average 1.967801287948482) internal successors, (2139), 1098 states have internal predecessors, (2139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:06,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 2139 transitions. [2021-11-20 23:26:06,104 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 2139 transitions. Word has length 18 [2021-11-20 23:26:06,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:06,104 INFO L470 AbstractCegarLoop]: Abstraction has 1099 states and 2139 transitions. [2021-11-20 23:26:06,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:06,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 2139 transitions. [2021-11-20 23:26:06,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:06,105 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:06,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:06,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-20 23:26:06,106 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:06,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:06,106 INFO L85 PathProgramCache]: Analyzing trace with hash -593902735, now seen corresponding path program 15 times [2021-11-20 23:26:06,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:06,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172092489] [2021-11-20 23:26:06,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:06,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:06,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:06,260 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:06,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172092489] [2021-11-20 23:26:06,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172092489] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:06,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:06,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:06,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655993280] [2021-11-20 23:26:06,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:06,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:06,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:06,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:06,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:06,261 INFO L87 Difference]: Start difference. First operand 1099 states and 2139 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:08,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:08,353 INFO L93 Difference]: Finished difference Result 2284 states and 4375 transitions. [2021-11-20 23:26:08,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-20 23:26:08,354 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:08,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:08,359 INFO L225 Difference]: With dead ends: 2284 [2021-11-20 23:26:08,360 INFO L226 Difference]: Without dead ends: 2284 [2021-11-20 23:26:08,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-11-20 23:26:08,361 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 201 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 2044 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:08,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 210 Invalid, 2087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2044 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-20 23:26:08,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2284 states. [2021-11-20 23:26:08,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2284 to 1086. [2021-11-20 23:26:08,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 1074 states have (on average 1.9636871508379887) internal successors, (2109), 1085 states have internal predecessors, (2109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:08,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 2109 transitions. [2021-11-20 23:26:08,406 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 2109 transitions. Word has length 18 [2021-11-20 23:26:08,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:08,407 INFO L470 AbstractCegarLoop]: Abstraction has 1086 states and 2109 transitions. [2021-11-20 23:26:08,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:08,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 2109 transitions. [2021-11-20 23:26:08,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:08,408 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:08,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:08,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-20 23:26:08,408 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:08,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:08,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1246525756, now seen corresponding path program 4 times [2021-11-20 23:26:08,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:08,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797583516] [2021-11-20 23:26:08,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:08,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:08,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:08,612 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:08,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797583516] [2021-11-20 23:26:08,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797583516] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:08,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:08,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:08,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082734497] [2021-11-20 23:26:08,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:08,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:08,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:08,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:08,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:08,613 INFO L87 Difference]: Start difference. First operand 1086 states and 2109 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:10,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:10,928 INFO L93 Difference]: Finished difference Result 2176 states and 4121 transitions. [2021-11-20 23:26:10,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-20 23:26:10,929 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:10,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:10,932 INFO L225 Difference]: With dead ends: 2176 [2021-11-20 23:26:10,932 INFO L226 Difference]: Without dead ends: 2168 [2021-11-20 23:26:10,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2021-11-20 23:26:10,933 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 229 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 2205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:10,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 211 Invalid, 2205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-20 23:26:10,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2021-11-20 23:26:10,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 1257. [2021-11-20 23:26:10,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1245 states have (on average 1.9879518072289157) internal successors, (2475), 1256 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:10,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 2475 transitions. [2021-11-20 23:26:10,964 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 2475 transitions. Word has length 18 [2021-11-20 23:26:10,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:10,964 INFO L470 AbstractCegarLoop]: Abstraction has 1257 states and 2475 transitions. [2021-11-20 23:26:10,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:10,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 2475 transitions. [2021-11-20 23:26:10,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:10,966 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:10,966 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:10,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-20 23:26:10,967 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:10,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:10,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1389737781, now seen corresponding path program 16 times [2021-11-20 23:26:10,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:10,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029224793] [2021-11-20 23:26:10,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:10,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:11,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:11,295 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:11,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029224793] [2021-11-20 23:26:11,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029224793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:11,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:11,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:11,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885906922] [2021-11-20 23:26:11,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:11,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:11,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:11,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:11,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:11,297 INFO L87 Difference]: Start difference. First operand 1257 states and 2475 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:12,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:12,692 INFO L93 Difference]: Finished difference Result 1799 states and 3522 transitions. [2021-11-20 23:26:12,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 23:26:12,692 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:12,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:12,697 INFO L225 Difference]: With dead ends: 1799 [2021-11-20 23:26:12,697 INFO L226 Difference]: Without dead ends: 1799 [2021-11-20 23:26:12,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2021-11-20 23:26:12,698 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 153 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:12,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 154 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-20 23:26:12,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2021-11-20 23:26:12,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1263. [2021-11-20 23:26:12,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 1251 states have (on average 1.9880095923261392) internal successors, (2487), 1262 states have internal predecessors, (2487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:12,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 2487 transitions. [2021-11-20 23:26:12,731 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 2487 transitions. Word has length 18 [2021-11-20 23:26:12,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:12,731 INFO L470 AbstractCegarLoop]: Abstraction has 1263 states and 2487 transitions. [2021-11-20 23:26:12,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:12,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 2487 transitions. [2021-11-20 23:26:12,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:12,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:12,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:12,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-20 23:26:12,734 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:12,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:12,735 INFO L85 PathProgramCache]: Analyzing trace with hash -2043079149, now seen corresponding path program 17 times [2021-11-20 23:26:12,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:12,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990477526] [2021-11-20 23:26:12,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:12,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:13,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:13,041 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:13,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990477526] [2021-11-20 23:26:13,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990477526] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:13,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:13,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 23:26:13,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179277676] [2021-11-20 23:26:13,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:13,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 23:26:13,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:13,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 23:26:13,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-20 23:26:13,043 INFO L87 Difference]: Start difference. First operand 1263 states and 2487 transitions. Second operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:15,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:15,038 INFO L93 Difference]: Finished difference Result 1822 states and 3566 transitions. [2021-11-20 23:26:15,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-20 23:26:15,039 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:15,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:15,041 INFO L225 Difference]: With dead ends: 1822 [2021-11-20 23:26:15,041 INFO L226 Difference]: Without dead ends: 1822 [2021-11-20 23:26:15,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2021-11-20 23:26:15,042 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 155 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:15,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 152 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-20 23:26:15,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2021-11-20 23:26:15,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1272. [2021-11-20 23:26:15,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1260 states have (on average 1.9880952380952381) internal successors, (2505), 1271 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:15,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 2505 transitions. [2021-11-20 23:26:15,060 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 2505 transitions. Word has length 18 [2021-11-20 23:26:15,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:15,060 INFO L470 AbstractCegarLoop]: Abstraction has 1272 states and 2505 transitions. [2021-11-20 23:26:15,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:15,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 2505 transitions. [2021-11-20 23:26:15,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:15,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:15,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:15,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-20 23:26:15,062 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:15,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:15,062 INFO L85 PathProgramCache]: Analyzing trace with hash -119825099, now seen corresponding path program 18 times [2021-11-20 23:26:15,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:15,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235741590] [2021-11-20 23:26:15,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:15,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:15,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:15,299 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:15,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235741590] [2021-11-20 23:26:15,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235741590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:15,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:15,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:15,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720676483] [2021-11-20 23:26:15,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:15,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:15,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:15,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:15,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:15,300 INFO L87 Difference]: Start difference. First operand 1272 states and 2505 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:16,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:16,869 INFO L93 Difference]: Finished difference Result 1850 states and 3620 transitions. [2021-11-20 23:26:16,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 23:26:16,870 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:16,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:16,872 INFO L225 Difference]: With dead ends: 1850 [2021-11-20 23:26:16,872 INFO L226 Difference]: Without dead ends: 1850 [2021-11-20 23:26:16,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2021-11-20 23:26:16,873 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 160 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:16,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 150 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 23:26:16,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2021-11-20 23:26:16,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1281. [2021-11-20 23:26:16,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1269 states have (on average 1.988179669030733) internal successors, (2523), 1280 states have internal predecessors, (2523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:16,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 2523 transitions. [2021-11-20 23:26:16,896 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 2523 transitions. Word has length 18 [2021-11-20 23:26:16,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:16,897 INFO L470 AbstractCegarLoop]: Abstraction has 1281 states and 2523 transitions. [2021-11-20 23:26:16,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:16,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 2523 transitions. [2021-11-20 23:26:16,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:16,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:16,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:16,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-20 23:26:16,900 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:16,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:16,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1037860521, now seen corresponding path program 19 times [2021-11-20 23:26:16,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:16,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070301099] [2021-11-20 23:26:16,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:16,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:17,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:17,099 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:17,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070301099] [2021-11-20 23:26:17,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070301099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:17,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:17,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:17,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220267840] [2021-11-20 23:26:17,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:17,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:17,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:17,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:17,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:17,101 INFO L87 Difference]: Start difference. First operand 1281 states and 2523 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:19,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:19,015 INFO L93 Difference]: Finished difference Result 1954 states and 3822 transitions. [2021-11-20 23:26:19,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-20 23:26:19,016 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:19,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:19,018 INFO L225 Difference]: With dead ends: 1954 [2021-11-20 23:26:19,018 INFO L226 Difference]: Without dead ends: 1954 [2021-11-20 23:26:19,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=259, Invalid=931, Unknown=0, NotChecked=0, Total=1190 [2021-11-20 23:26:19,019 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 190 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:19,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 127 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 23:26:19,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2021-11-20 23:26:19,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1290. [2021-11-20 23:26:19,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1290 states, 1278 states have (on average 1.988262910798122) internal successors, (2541), 1289 states have internal predecessors, (2541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:19,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1290 states to 1290 states and 2541 transitions. [2021-11-20 23:26:19,056 INFO L78 Accepts]: Start accepts. Automaton has 1290 states and 2541 transitions. Word has length 18 [2021-11-20 23:26:19,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:19,056 INFO L470 AbstractCegarLoop]: Abstraction has 1290 states and 2541 transitions. [2021-11-20 23:26:19,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:19,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1290 states and 2541 transitions. [2021-11-20 23:26:19,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:19,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:19,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:19,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-20 23:26:19,057 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:19,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:19,058 INFO L85 PathProgramCache]: Analyzing trace with hash -628080770, now seen corresponding path program 5 times [2021-11-20 23:26:19,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:19,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34190373] [2021-11-20 23:26:19,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:19,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:19,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:19,233 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:19,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34190373] [2021-11-20 23:26:19,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34190373] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:19,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:19,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:19,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136305167] [2021-11-20 23:26:19,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:19,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:19,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:19,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:19,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:19,235 INFO L87 Difference]: Start difference. First operand 1290 states and 2541 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:20,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:20,897 INFO L93 Difference]: Finished difference Result 2170 states and 4152 transitions. [2021-11-20 23:26:20,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 23:26:20,899 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:20,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:20,901 INFO L225 Difference]: With dead ends: 2170 [2021-11-20 23:26:20,901 INFO L226 Difference]: Without dead ends: 2170 [2021-11-20 23:26:20,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2021-11-20 23:26:20,901 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 280 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:20,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 291 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:26:20,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2021-11-20 23:26:20,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 1253. [2021-11-20 23:26:20,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1241 states have (on average 1.991136180499597) internal successors, (2471), 1252 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:20,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 2471 transitions. [2021-11-20 23:26:20,921 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 2471 transitions. Word has length 18 [2021-11-20 23:26:20,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:20,921 INFO L470 AbstractCegarLoop]: Abstraction has 1253 states and 2471 transitions. [2021-11-20 23:26:20,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:20,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 2471 transitions. [2021-11-20 23:26:20,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:20,922 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:20,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:20,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-20 23:26:20,923 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:20,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:20,923 INFO L85 PathProgramCache]: Analyzing trace with hash -403808575, now seen corresponding path program 20 times [2021-11-20 23:26:20,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:20,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871097583] [2021-11-20 23:26:20,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:20,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:21,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:21,078 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:21,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871097583] [2021-11-20 23:26:21,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871097583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:21,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:21,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:21,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751604682] [2021-11-20 23:26:21,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:21,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:21,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:21,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:21,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:21,079 INFO L87 Difference]: Start difference. First operand 1253 states and 2471 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:22,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:22,870 INFO L93 Difference]: Finished difference Result 2050 states and 3961 transitions. [2021-11-20 23:26:22,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 23:26:22,871 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:22,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:22,873 INFO L225 Difference]: With dead ends: 2050 [2021-11-20 23:26:22,873 INFO L226 Difference]: Without dead ends: 2050 [2021-11-20 23:26:22,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2021-11-20 23:26:22,874 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 201 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 1920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:22,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 272 Invalid, 1920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:26:22,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2021-11-20 23:26:22,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 1207. [2021-11-20 23:26:22,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1195 states have (on average 1.9874476987447698) internal successors, (2375), 1206 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:22,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 2375 transitions. [2021-11-20 23:26:22,895 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 2375 transitions. Word has length 18 [2021-11-20 23:26:22,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:22,895 INFO L470 AbstractCegarLoop]: Abstraction has 1207 states and 2375 transitions. [2021-11-20 23:26:22,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:22,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 2375 transitions. [2021-11-20 23:26:22,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:22,901 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:22,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:22,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-20 23:26:22,901 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:22,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:22,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1568194140, now seen corresponding path program 6 times [2021-11-20 23:26:22,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:22,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136225237] [2021-11-20 23:26:22,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:22,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:23,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:23,102 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:23,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136225237] [2021-11-20 23:26:23,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136225237] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:23,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:23,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:23,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352743476] [2021-11-20 23:26:23,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:23,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:23,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:23,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:23,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:23,104 INFO L87 Difference]: Start difference. First operand 1207 states and 2375 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:25,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:25,330 INFO L93 Difference]: Finished difference Result 2794 states and 5304 transitions. [2021-11-20 23:26:25,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 23:26:25,330 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:25,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:25,336 INFO L225 Difference]: With dead ends: 2794 [2021-11-20 23:26:25,337 INFO L226 Difference]: Without dead ends: 2786 [2021-11-20 23:26:25,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2021-11-20 23:26:25,337 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 277 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 2310 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 2310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:25,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 350 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 2310 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-20 23:26:25,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2021-11-20 23:26:25,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 1250. [2021-11-20 23:26:25,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1238 states have (on average 1.9911147011308563) internal successors, (2465), 1249 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:25,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 2465 transitions. [2021-11-20 23:26:25,372 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 2465 transitions. Word has length 18 [2021-11-20 23:26:25,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:25,372 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 2465 transitions. [2021-11-20 23:26:25,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:25,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 2465 transitions. [2021-11-20 23:26:25,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:25,374 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:25,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:25,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-20 23:26:25,375 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:25,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:25,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1792466335, now seen corresponding path program 21 times [2021-11-20 23:26:25,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:25,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030769480] [2021-11-20 23:26:25,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:25,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:25,550 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:25,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030769480] [2021-11-20 23:26:25,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030769480] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:25,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:25,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:25,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645913680] [2021-11-20 23:26:25,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:25,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:25,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:25,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:25,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:25,552 INFO L87 Difference]: Start difference. First operand 1250 states and 2465 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:27,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:27,709 INFO L93 Difference]: Finished difference Result 2553 states and 4914 transitions. [2021-11-20 23:26:27,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-20 23:26:27,710 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:27,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:27,712 INFO L225 Difference]: With dead ends: 2553 [2021-11-20 23:26:27,712 INFO L226 Difference]: Without dead ends: 2553 [2021-11-20 23:26:27,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=204, Invalid=852, Unknown=0, NotChecked=0, Total=1056 [2021-11-20 23:26:27,713 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 217 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 2282 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 2328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:27,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 309 Invalid, 2328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2282 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 23:26:27,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2021-11-20 23:26:27,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 1227. [2021-11-20 23:26:27,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 1215 states have (on average 1.9876543209876543) internal successors, (2415), 1226 states have internal predecessors, (2415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:27,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 2415 transitions. [2021-11-20 23:26:27,741 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 2415 transitions. Word has length 18 [2021-11-20 23:26:27,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:27,741 INFO L470 AbstractCegarLoop]: Abstraction has 1227 states and 2415 transitions. [2021-11-20 23:26:27,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:27,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 2415 transitions. [2021-11-20 23:26:27,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:27,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:27,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:27,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-20 23:26:27,742 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:27,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:27,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1139843314, now seen corresponding path program 7 times [2021-11-20 23:26:27,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:27,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683554990] [2021-11-20 23:26:27,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:27,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:27,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:27,888 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:27,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683554990] [2021-11-20 23:26:27,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683554990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:27,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:27,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:27,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937812471] [2021-11-20 23:26:27,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:27,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:27,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:27,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:27,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:27,890 INFO L87 Difference]: Start difference. First operand 1227 states and 2415 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:30,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:30,549 INFO L93 Difference]: Finished difference Result 2445 states and 4660 transitions. [2021-11-20 23:26:30,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 23:26:30,549 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:30,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:30,552 INFO L225 Difference]: With dead ends: 2445 [2021-11-20 23:26:30,552 INFO L226 Difference]: Without dead ends: 2437 [2021-11-20 23:26:30,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=599, Unknown=0, NotChecked=0, Total=756 [2021-11-20 23:26:30,553 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 228 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 2698 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 2698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:30,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 313 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 2698 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 23:26:30,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2021-11-20 23:26:30,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 1202. [2021-11-20 23:26:30,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 1190 states have (on average 1.9873949579831933) internal successors, (2365), 1201 states have internal predecessors, (2365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:30,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 2365 transitions. [2021-11-20 23:26:30,581 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 2365 transitions. Word has length 18 [2021-11-20 23:26:30,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:30,582 INFO L470 AbstractCegarLoop]: Abstraction has 1202 states and 2365 transitions. [2021-11-20 23:26:30,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:30,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 2365 transitions. [2021-11-20 23:26:30,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:30,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:30,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:30,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-20 23:26:30,584 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:30,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:30,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1237829630, now seen corresponding path program 8 times [2021-11-20 23:26:30,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:30,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757139458] [2021-11-20 23:26:30,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:30,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:30,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:30,748 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:30,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757139458] [2021-11-20 23:26:30,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757139458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:30,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:30,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:30,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322884653] [2021-11-20 23:26:30,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:30,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:30,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:30,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:30,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:30,750 INFO L87 Difference]: Start difference. First operand 1202 states and 2365 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:32,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:32,610 INFO L93 Difference]: Finished difference Result 2170 states and 4137 transitions. [2021-11-20 23:26:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 23:26:32,610 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:32,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:32,612 INFO L225 Difference]: With dead ends: 2170 [2021-11-20 23:26:32,612 INFO L226 Difference]: Without dead ends: 2162 [2021-11-20 23:26:32,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=590, Unknown=0, NotChecked=0, Total=756 [2021-11-20 23:26:32,613 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 426 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:32,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 129 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:26:32,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2162 states. [2021-11-20 23:26:32,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2162 to 1179. [2021-11-20 23:26:32,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 1167 states have (on average 1.987146529562982) internal successors, (2319), 1178 states have internal predecessors, (2319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:32,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 2319 transitions. [2021-11-20 23:26:32,640 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 2319 transitions. Word has length 18 [2021-11-20 23:26:32,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:32,640 INFO L470 AbstractCegarLoop]: Abstraction has 1179 states and 2319 transitions. [2021-11-20 23:26:32,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 2319 transitions. [2021-11-20 23:26:32,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:32,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:32,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:32,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-20 23:26:32,642 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:32,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:32,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1462101825, now seen corresponding path program 22 times [2021-11-20 23:26:32,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:32,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526024090] [2021-11-20 23:26:32,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:32,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:32,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:32,791 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:32,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526024090] [2021-11-20 23:26:32,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526024090] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:32,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:32,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:32,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414689938] [2021-11-20 23:26:32,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:32,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:32,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:32,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:32,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:32,793 INFO L87 Difference]: Start difference. First operand 1179 states and 2319 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:35,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:35,198 INFO L93 Difference]: Finished difference Result 1947 states and 3748 transitions. [2021-11-20 23:26:35,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-20 23:26:35,198 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:35,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:35,200 INFO L225 Difference]: With dead ends: 1947 [2021-11-20 23:26:35,200 INFO L226 Difference]: Without dead ends: 1947 [2021-11-20 23:26:35,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=294, Invalid=896, Unknown=0, NotChecked=0, Total=1190 [2021-11-20 23:26:35,202 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 336 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:35,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 133 Invalid, 2038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-20 23:26:35,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2021-11-20 23:26:35,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1099. [2021-11-20 23:26:35,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 1089 states have (on average 1.9871441689623508) internal successors, (2164), 1098 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:35,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 2164 transitions. [2021-11-20 23:26:35,221 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 2164 transitions. Word has length 18 [2021-11-20 23:26:35,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:35,221 INFO L470 AbstractCegarLoop]: Abstraction has 1099 states and 2164 transitions. [2021-11-20 23:26:35,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:35,221 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 2164 transitions. [2021-11-20 23:26:35,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:35,221 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:35,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:35,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-20 23:26:35,222 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:35,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:35,222 INFO L85 PathProgramCache]: Analyzing trace with hash 809478804, now seen corresponding path program 9 times [2021-11-20 23:26:35,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:35,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518407917] [2021-11-20 23:26:35,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:35,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:35,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:35,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:35,384 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:35,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518407917] [2021-11-20 23:26:35,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518407917] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:35,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:35,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:35,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635137112] [2021-11-20 23:26:35,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:35,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:35,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:35,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:35,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:35,386 INFO L87 Difference]: Start difference. First operand 1099 states and 2164 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:37,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:37,490 INFO L93 Difference]: Finished difference Result 2317 states and 4396 transitions. [2021-11-20 23:26:37,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-20 23:26:37,490 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:37,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:37,493 INFO L225 Difference]: With dead ends: 2317 [2021-11-20 23:26:37,493 INFO L226 Difference]: Without dead ends: 2317 [2021-11-20 23:26:37,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=252, Invalid=870, Unknown=0, NotChecked=0, Total=1122 [2021-11-20 23:26:37,495 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 375 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 1776 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 2020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 1776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:37,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 152 Invalid, 2020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 1776 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:26:37,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2021-11-20 23:26:37,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 1097. [2021-11-20 23:26:37,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 1087 states have (on average 1.987120515179393) internal successors, (2160), 1096 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:37,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 2160 transitions. [2021-11-20 23:26:37,516 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 2160 transitions. Word has length 18 [2021-11-20 23:26:37,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:37,516 INFO L470 AbstractCegarLoop]: Abstraction has 1097 states and 2160 transitions. [2021-11-20 23:26:37,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:37,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 2160 transitions. [2021-11-20 23:26:37,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:26:37,517 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:37,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:37,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-20 23:26:37,518 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:37,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:37,518 INFO L85 PathProgramCache]: Analyzing trace with hash -428869762, now seen corresponding path program 10 times [2021-11-20 23:26:37,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:37,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181869637] [2021-11-20 23:26:37,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:37,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:37,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:37,690 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:37,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181869637] [2021-11-20 23:26:37,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181869637] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:37,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:37,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:37,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508273211] [2021-11-20 23:26:37,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:37,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:37,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:37,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:37,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:37,692 INFO L87 Difference]: Start difference. First operand 1097 states and 2160 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:40,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:40,417 INFO L93 Difference]: Finished difference Result 1731 states and 3309 transitions. [2021-11-20 23:26:40,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-20 23:26:40,418 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 23:26:40,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:40,419 INFO L225 Difference]: With dead ends: 1731 [2021-11-20 23:26:40,419 INFO L226 Difference]: Without dead ends: 1731 [2021-11-20 23:26:40,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=224, Invalid=768, Unknown=0, NotChecked=0, Total=992 [2021-11-20 23:26:40,420 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 212 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 2241 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 2241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:40,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 158 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 2241 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:26:40,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2021-11-20 23:26:40,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 979. [2021-11-20 23:26:40,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 970 states have (on average 1.9835051546391753) internal successors, (1924), 978 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:40,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1924 transitions. [2021-11-20 23:26:40,436 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1924 transitions. Word has length 18 [2021-11-20 23:26:40,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:40,436 INFO L470 AbstractCegarLoop]: Abstraction has 979 states and 1924 transitions. [2021-11-20 23:26:40,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:40,437 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1924 transitions. [2021-11-20 23:26:40,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:26:40,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:40,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:40,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-11-20 23:26:40,438 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:40,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:40,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1143215968, now seen corresponding path program 1 times [2021-11-20 23:26:40,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:40,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274916948] [2021-11-20 23:26:40,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:40,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:40,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:40,770 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:40,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274916948] [2021-11-20 23:26:40,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274916948] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:40,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:40,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:40,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404543316] [2021-11-20 23:26:40,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:40,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:40,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:40,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:40,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:40,771 INFO L87 Difference]: Start difference. First operand 979 states and 1924 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:42,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:42,171 INFO L93 Difference]: Finished difference Result 1187 states and 2312 transitions. [2021-11-20 23:26:42,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 23:26:42,171 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:26:42,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:42,173 INFO L225 Difference]: With dead ends: 1187 [2021-11-20 23:26:42,174 INFO L226 Difference]: Without dead ends: 1187 [2021-11-20 23:26:42,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2021-11-20 23:26:42,175 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 179 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:42,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 95 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-20 23:26:42,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2021-11-20 23:26:42,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1004. [2021-11-20 23:26:42,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 995 states have (on average 1.9839195979899498) internal successors, (1974), 1003 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:42,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1974 transitions. [2021-11-20 23:26:42,193 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1974 transitions. Word has length 24 [2021-11-20 23:26:42,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:42,193 INFO L470 AbstractCegarLoop]: Abstraction has 1004 states and 1974 transitions. [2021-11-20 23:26:42,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:42,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1974 transitions. [2021-11-20 23:26:42,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:26:42,195 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:42,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:42,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-11-20 23:26:42,195 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:42,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:42,196 INFO L85 PathProgramCache]: Analyzing trace with hash -536262252, now seen corresponding path program 2 times [2021-11-20 23:26:42,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:42,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859297130] [2021-11-20 23:26:42,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:42,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:42,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:42,447 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:42,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859297130] [2021-11-20 23:26:42,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859297130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:42,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:42,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:42,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308837327] [2021-11-20 23:26:42,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:42,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:42,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:42,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:42,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:42,449 INFO L87 Difference]: Start difference. First operand 1004 states and 1974 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:44,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:44,011 INFO L93 Difference]: Finished difference Result 1205 states and 2346 transitions. [2021-11-20 23:26:44,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-20 23:26:44,011 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:26:44,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:44,013 INFO L225 Difference]: With dead ends: 1205 [2021-11-20 23:26:44,013 INFO L226 Difference]: Without dead ends: 1205 [2021-11-20 23:26:44,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2021-11-20 23:26:44,014 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 186 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:44,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 95 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 23:26:44,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2021-11-20 23:26:44,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1009. [2021-11-20 23:26:44,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 1000 states have (on average 1.984) internal successors, (1984), 1008 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:44,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1984 transitions. [2021-11-20 23:26:44,027 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1984 transitions. Word has length 24 [2021-11-20 23:26:44,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:44,027 INFO L470 AbstractCegarLoop]: Abstraction has 1009 states and 1984 transitions. [2021-11-20 23:26:44,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:44,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1984 transitions. [2021-11-20 23:26:44,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:26:44,029 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:44,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:44,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-11-20 23:26:44,030 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:44,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:44,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1986936480, now seen corresponding path program 3 times [2021-11-20 23:26:44,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:44,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56143686] [2021-11-20 23:26:44,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:44,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:44,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:44,292 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:44,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56143686] [2021-11-20 23:26:44,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56143686] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:44,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:44,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:44,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897110527] [2021-11-20 23:26:44,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:44,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:44,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:44,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:44,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:44,293 INFO L87 Difference]: Start difference. First operand 1009 states and 1984 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:45,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:45,901 INFO L93 Difference]: Finished difference Result 1223 states and 2380 transitions. [2021-11-20 23:26:45,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-20 23:26:45,901 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:26:45,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:45,903 INFO L225 Difference]: With dead ends: 1223 [2021-11-20 23:26:45,903 INFO L226 Difference]: Without dead ends: 1223 [2021-11-20 23:26:45,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=206, Invalid=550, Unknown=0, NotChecked=0, Total=756 [2021-11-20 23:26:45,903 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 194 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:45,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 95 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 23:26:45,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2021-11-20 23:26:45,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1014. [2021-11-20 23:26:45,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 1005 states have (on average 1.9840796019900497) internal successors, (1994), 1013 states have internal predecessors, (1994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:45,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1994 transitions. [2021-11-20 23:26:45,915 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1994 transitions. Word has length 24 [2021-11-20 23:26:45,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:45,915 INFO L470 AbstractCegarLoop]: Abstraction has 1014 states and 1994 transitions. [2021-11-20 23:26:45,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:45,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1994 transitions. [2021-11-20 23:26:45,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:26:45,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:45,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:45,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-20 23:26:45,917 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:45,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:45,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1824583618, now seen corresponding path program 4 times [2021-11-20 23:26:45,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:45,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537150219] [2021-11-20 23:26:45,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:45,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:46,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:46,174 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:46,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537150219] [2021-11-20 23:26:46,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537150219] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:46,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:46,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:46,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022553269] [2021-11-20 23:26:46,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:46,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:46,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:46,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:46,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:46,175 INFO L87 Difference]: Start difference. First operand 1014 states and 1994 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:47,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:47,708 INFO L93 Difference]: Finished difference Result 1241 states and 2414 transitions. [2021-11-20 23:26:47,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-20 23:26:47,708 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:26:47,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:47,710 INFO L225 Difference]: With dead ends: 1241 [2021-11-20 23:26:47,710 INFO L226 Difference]: Without dead ends: 1241 [2021-11-20 23:26:47,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2021-11-20 23:26:47,711 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 205 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:47,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 95 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 23:26:47,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2021-11-20 23:26:47,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1019. [2021-11-20 23:26:47,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1010 states have (on average 1.9841584158415841) internal successors, (2004), 1018 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:47,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 2004 transitions. [2021-11-20 23:26:47,738 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 2004 transitions. Word has length 24 [2021-11-20 23:26:47,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:47,739 INFO L470 AbstractCegarLoop]: Abstraction has 1019 states and 2004 transitions. [2021-11-20 23:26:47,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:47,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 2004 transitions. [2021-11-20 23:26:47,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:26:47,739 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:47,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:47,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-20 23:26:47,740 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:47,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:47,740 INFO L85 PathProgramCache]: Analyzing trace with hash 342329672, now seen corresponding path program 5 times [2021-11-20 23:26:47,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:47,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645117638] [2021-11-20 23:26:47,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:47,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:47,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:47,919 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:47,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645117638] [2021-11-20 23:26:47,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645117638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:47,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:47,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:47,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139925763] [2021-11-20 23:26:47,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:47,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:47,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:47,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:47,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:47,920 INFO L87 Difference]: Start difference. First operand 1019 states and 2004 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:50,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:50,037 INFO L93 Difference]: Finished difference Result 1530 states and 2949 transitions. [2021-11-20 23:26:50,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-20 23:26:50,038 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:26:50,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:50,040 INFO L225 Difference]: With dead ends: 1530 [2021-11-20 23:26:50,040 INFO L226 Difference]: Without dead ends: 1530 [2021-11-20 23:26:50,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=391, Invalid=1015, Unknown=0, NotChecked=0, Total=1406 [2021-11-20 23:26:50,041 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 289 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:50,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 117 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:26:50,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2021-11-20 23:26:50,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1012. [2021-11-20 23:26:50,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1003 states have (on average 1.9840478564307078) internal successors, (1990), 1011 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:50,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1990 transitions. [2021-11-20 23:26:50,060 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1990 transitions. Word has length 24 [2021-11-20 23:26:50,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:50,060 INFO L470 AbstractCegarLoop]: Abstraction has 1012 states and 1990 transitions. [2021-11-20 23:26:50,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1990 transitions. [2021-11-20 23:26:50,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:26:50,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:50,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:50,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-20 23:26:50,062 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:50,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:50,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1264951076, now seen corresponding path program 6 times [2021-11-20 23:26:50,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:50,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665061579] [2021-11-20 23:26:50,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:50,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:50,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:50,324 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:50,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665061579] [2021-11-20 23:26:50,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665061579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:50,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:50,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:50,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073044939] [2021-11-20 23:26:50,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:50,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:50,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:50,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:50,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:50,326 INFO L87 Difference]: Start difference. First operand 1012 states and 1990 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:52,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:52,244 INFO L93 Difference]: Finished difference Result 1653 states and 3232 transitions. [2021-11-20 23:26:52,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 23:26:52,244 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:26:52,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:52,246 INFO L225 Difference]: With dead ends: 1653 [2021-11-20 23:26:52,246 INFO L226 Difference]: Without dead ends: 1653 [2021-11-20 23:26:52,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2021-11-20 23:26:52,247 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 184 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:52,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 113 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:26:52,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2021-11-20 23:26:52,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1074. [2021-11-20 23:26:52,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 1065 states have (on average 1.9849765258215963) internal successors, (2114), 1073 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:52,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 2114 transitions. [2021-11-20 23:26:52,261 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 2114 transitions. Word has length 24 [2021-11-20 23:26:52,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:52,261 INFO L470 AbstractCegarLoop]: Abstraction has 1074 states and 2114 transitions. [2021-11-20 23:26:52,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:52,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 2114 transitions. [2021-11-20 23:26:52,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:26:52,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:52,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:52,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-11-20 23:26:52,263 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:52,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:52,263 INFO L85 PathProgramCache]: Analyzing trace with hash -657997360, now seen corresponding path program 7 times [2021-11-20 23:26:52,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:52,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374113207] [2021-11-20 23:26:52,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:52,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:52,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:52,522 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:52,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374113207] [2021-11-20 23:26:52,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374113207] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:52,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:52,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:52,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790500802] [2021-11-20 23:26:52,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:52,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:52,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:52,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:52,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:52,524 INFO L87 Difference]: Start difference. First operand 1074 states and 2114 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:54,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:54,112 INFO L93 Difference]: Finished difference Result 1671 states and 3266 transitions. [2021-11-20 23:26:54,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 23:26:54,113 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:26:54,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:54,114 INFO L225 Difference]: With dead ends: 1671 [2021-11-20 23:26:54,114 INFO L226 Difference]: Without dead ends: 1671 [2021-11-20 23:26:54,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-20 23:26:54,115 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 189 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:54,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 111 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-20 23:26:54,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2021-11-20 23:26:54,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1076. [2021-11-20 23:26:54,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1076 states, 1067 states have (on average 1.9850046860356139) internal successors, (2118), 1075 states have internal predecessors, (2118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:54,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 2118 transitions. [2021-11-20 23:26:54,127 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 2118 transitions. Word has length 24 [2021-11-20 23:26:54,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:54,128 INFO L470 AbstractCegarLoop]: Abstraction has 1076 states and 2118 transitions. [2021-11-20 23:26:54,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:54,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 2118 transitions. [2021-11-20 23:26:54,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:26:54,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:54,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:54,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-11-20 23:26:54,129 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:54,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:54,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1865201372, now seen corresponding path program 8 times [2021-11-20 23:26:54,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:54,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019575439] [2021-11-20 23:26:54,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:54,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:54,352 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:54,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019575439] [2021-11-20 23:26:54,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019575439] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:54,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:54,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:54,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943226883] [2021-11-20 23:26:54,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:54,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:54,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:54,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:54,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:54,354 INFO L87 Difference]: Start difference. First operand 1076 states and 2118 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:56,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:56,401 INFO L93 Difference]: Finished difference Result 1689 states and 3300 transitions. [2021-11-20 23:26:56,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 23:26:56,401 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:26:56,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:56,403 INFO L225 Difference]: With dead ends: 1689 [2021-11-20 23:26:56,403 INFO L226 Difference]: Without dead ends: 1689 [2021-11-20 23:26:56,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=620, Unknown=0, NotChecked=0, Total=812 [2021-11-20 23:26:56,403 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 192 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:56,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 109 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:26:56,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2021-11-20 23:26:56,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1078. [2021-11-20 23:26:56,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1069 states have (on average 1.9850327408793265) internal successors, (2122), 1077 states have internal predecessors, (2122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:56,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 2122 transitions. [2021-11-20 23:26:56,419 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 2122 transitions. Word has length 24 [2021-11-20 23:26:56,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:56,419 INFO L470 AbstractCegarLoop]: Abstraction has 1078 states and 2122 transitions. [2021-11-20 23:26:56,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:56,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 2122 transitions. [2021-11-20 23:26:56,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:26:56,420 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:56,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:56,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-11-20 23:26:56,420 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:56,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:56,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1946318726, now seen corresponding path program 9 times [2021-11-20 23:26:56,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:56,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246884927] [2021-11-20 23:26:56,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:56,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:56,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:56,658 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:56,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246884927] [2021-11-20 23:26:56,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246884927] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:56,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:56,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 23:26:56,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437472137] [2021-11-20 23:26:56,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:56,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 23:26:56,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:56,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 23:26:56,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-20 23:26:56,660 INFO L87 Difference]: Start difference. First operand 1078 states and 2122 transitions. Second operand has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:58,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:26:58,668 INFO L93 Difference]: Finished difference Result 1707 states and 3334 transitions. [2021-11-20 23:26:58,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-20 23:26:58,668 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:26:58,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:26:58,670 INFO L225 Difference]: With dead ends: 1707 [2021-11-20 23:26:58,670 INFO L226 Difference]: Without dead ends: 1707 [2021-11-20 23:26:58,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=220, Invalid=772, Unknown=0, NotChecked=0, Total=992 [2021-11-20 23:26:58,671 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 204 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:26:58,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 107 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 23:26:58,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2021-11-20 23:26:58,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1080. [2021-11-20 23:26:58,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 1071 states have (on average 1.985060690943044) internal successors, (2126), 1079 states have internal predecessors, (2126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:58,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 2126 transitions. [2021-11-20 23:26:58,691 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 2126 transitions. Word has length 24 [2021-11-20 23:26:58,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:26:58,692 INFO L470 AbstractCegarLoop]: Abstraction has 1080 states and 2126 transitions. [2021-11-20 23:26:58,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:26:58,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 2126 transitions. [2021-11-20 23:26:58,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:26:58,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:26:58,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:26:58,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-11-20 23:26:58,694 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:26:58,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:26:58,694 INFO L85 PathProgramCache]: Analyzing trace with hash 220594564, now seen corresponding path program 10 times [2021-11-20 23:26:58,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:26:58,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830197031] [2021-11-20 23:26:58,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:26:58,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:26:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:26:58,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:26:58,914 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:26:58,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830197031] [2021-11-20 23:26:58,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830197031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:26:58,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:26:58,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:26:58,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426441477] [2021-11-20 23:26:58,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:26:58,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:26:58,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:26:58,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:26:58,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:26:58,915 INFO L87 Difference]: Start difference. First operand 1080 states and 2126 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:00,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:00,635 INFO L93 Difference]: Finished difference Result 1907 states and 3705 transitions. [2021-11-20 23:27:00,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 23:27:00,635 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:27:00,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:00,637 INFO L225 Difference]: With dead ends: 1907 [2021-11-20 23:27:00,637 INFO L226 Difference]: Without dead ends: 1907 [2021-11-20 23:27:00,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2021-11-20 23:27:00,638 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 215 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:00,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 144 Invalid, 1587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:27:00,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2021-11-20 23:27:00,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1096. [2021-11-20 23:27:00,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1087 states have (on average 1.9852805887764489) internal successors, (2158), 1095 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:00,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 2158 transitions. [2021-11-20 23:27:00,651 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 2158 transitions. Word has length 24 [2021-11-20 23:27:00,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:00,652 INFO L470 AbstractCegarLoop]: Abstraction has 1096 states and 2158 transitions. [2021-11-20 23:27:00,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:00,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 2158 transitions. [2021-11-20 23:27:00,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:27:00,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:00,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:00,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-11-20 23:27:00,654 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:27:00,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:00,654 INFO L85 PathProgramCache]: Analyzing trace with hash 267962254, now seen corresponding path program 11 times [2021-11-20 23:27:00,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:00,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405316339] [2021-11-20 23:27:00,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:00,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:00,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:27:00,850 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:00,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405316339] [2021-11-20 23:27:00,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405316339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:00,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:00,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:27:00,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420754940] [2021-11-20 23:27:00,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:00,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:27:00,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:00,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:27:00,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:27:00,852 INFO L87 Difference]: Start difference. First operand 1096 states and 2158 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:02,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:02,457 INFO L93 Difference]: Finished difference Result 1696 states and 3294 transitions. [2021-11-20 23:27:02,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 23:27:02,458 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:27:02,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:02,459 INFO L225 Difference]: With dead ends: 1696 [2021-11-20 23:27:02,459 INFO L226 Difference]: Without dead ends: 1696 [2021-11-20 23:27:02,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2021-11-20 23:27:02,460 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 172 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:02,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 151 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 23:27:02,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2021-11-20 23:27:02,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1094. [2021-11-20 23:27:02,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1085 states have (on average 1.985253456221198) internal successors, (2154), 1093 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:02,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 2154 transitions. [2021-11-20 23:27:02,473 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 2154 transitions. Word has length 24 [2021-11-20 23:27:02,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:02,473 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 2154 transitions. [2021-11-20 23:27:02,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:02,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 2154 transitions. [2021-11-20 23:27:02,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:27:02,474 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:02,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:02,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-11-20 23:27:02,474 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:27:02,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:02,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1122049208, now seen corresponding path program 12 times [2021-11-20 23:27:02,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:02,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428932226] [2021-11-20 23:27:02,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:02,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:02,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:27:02,710 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:02,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428932226] [2021-11-20 23:27:02,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428932226] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:02,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:02,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:27:02,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671238118] [2021-11-20 23:27:02,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:02,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:27:02,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:02,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:27:02,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:27:02,712 INFO L87 Difference]: Start difference. First operand 1094 states and 2154 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:04,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:04,934 INFO L93 Difference]: Finished difference Result 2163 states and 4175 transitions. [2021-11-20 23:27:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-20 23:27:04,934 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:27:04,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:04,936 INFO L225 Difference]: With dead ends: 2163 [2021-11-20 23:27:04,936 INFO L226 Difference]: Without dead ends: 2163 [2021-11-20 23:27:04,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2021-11-20 23:27:04,937 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 230 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 2115 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:04,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 143 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2115 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-20 23:27:04,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2163 states. [2021-11-20 23:27:04,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2163 to 1112. [2021-11-20 23:27:04,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1103 states have (on average 1.985494106980961) internal successors, (2190), 1111 states have internal predecessors, (2190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:04,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 2190 transitions. [2021-11-20 23:27:04,959 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 2190 transitions. Word has length 24 [2021-11-20 23:27:04,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:04,959 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 2190 transitions. [2021-11-20 23:27:04,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:04,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 2190 transitions. [2021-11-20 23:27:04,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:27:04,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:04,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:04,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-11-20 23:27:04,962 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:27:04,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:04,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1169416898, now seen corresponding path program 13 times [2021-11-20 23:27:04,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:04,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162423950] [2021-11-20 23:27:04,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:04,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:05,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:27:05,133 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:05,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162423950] [2021-11-20 23:27:05,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162423950] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:05,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:05,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:27:05,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115834083] [2021-11-20 23:27:05,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:05,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:27:05,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:05,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:27:05,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:27:05,135 INFO L87 Difference]: Start difference. First operand 1112 states and 2190 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:07,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:07,166 INFO L93 Difference]: Finished difference Result 2018 states and 3894 transitions. [2021-11-20 23:27:07,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 23:27:07,166 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:27:07,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:07,168 INFO L225 Difference]: With dead ends: 2018 [2021-11-20 23:27:07,168 INFO L226 Difference]: Without dead ends: 2018 [2021-11-20 23:27:07,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2021-11-20 23:27:07,169 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 179 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:07,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 232 Invalid, 1755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 23:27:07,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2021-11-20 23:27:07,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 1099. [2021-11-20 23:27:07,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 1090 states have (on average 1.9853211009174312) internal successors, (2164), 1098 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:07,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 2164 transitions. [2021-11-20 23:27:07,182 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 2164 transitions. Word has length 24 [2021-11-20 23:27:07,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:07,183 INFO L470 AbstractCegarLoop]: Abstraction has 1099 states and 2164 transitions. [2021-11-20 23:27:07,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:07,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 2164 transitions. [2021-11-20 23:27:07,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:27:07,184 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:07,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:07,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-11-20 23:27:07,184 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:27:07,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:07,184 INFO L85 PathProgramCache]: Analyzing trace with hash -508923378, now seen corresponding path program 14 times [2021-11-20 23:27:07,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:07,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738120274] [2021-11-20 23:27:07,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:07,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:07,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:27:07,430 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:07,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738120274] [2021-11-20 23:27:07,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738120274] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:07,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:07,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:27:07,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366826620] [2021-11-20 23:27:07,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:07,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:27:07,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:07,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:27:07,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:27:07,431 INFO L87 Difference]: Start difference. First operand 1099 states and 2164 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:09,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:09,348 INFO L93 Difference]: Finished difference Result 1544 states and 3015 transitions. [2021-11-20 23:27:09,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 23:27:09,348 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:27:09,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:09,350 INFO L225 Difference]: With dead ends: 1544 [2021-11-20 23:27:09,350 INFO L226 Difference]: Without dead ends: 1544 [2021-11-20 23:27:09,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2021-11-20 23:27:09,350 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 160 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:09,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 145 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:27:09,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2021-11-20 23:27:09,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1094. [2021-11-20 23:27:09,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1085 states have (on average 1.985253456221198) internal successors, (2154), 1093 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:09,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 2154 transitions. [2021-11-20 23:27:09,364 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 2154 transitions. Word has length 24 [2021-11-20 23:27:09,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:09,365 INFO L470 AbstractCegarLoop]: Abstraction has 1094 states and 2154 transitions. [2021-11-20 23:27:09,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:09,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 2154 transitions. [2021-11-20 23:27:09,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:27:09,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:09,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:09,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-11-20 23:27:09,366 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:27:09,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:09,366 INFO L85 PathProgramCache]: Analyzing trace with hash 98030338, now seen corresponding path program 15 times [2021-11-20 23:27:09,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:09,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982302577] [2021-11-20 23:27:09,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:09,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:09,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:27:09,620 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:09,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982302577] [2021-11-20 23:27:09,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982302577] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:09,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:09,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:27:09,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26873045] [2021-11-20 23:27:09,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:09,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:27:09,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:09,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:27:09,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:27:09,622 INFO L87 Difference]: Start difference. First operand 1094 states and 2154 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:11,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:11,559 INFO L93 Difference]: Finished difference Result 1562 states and 3049 transitions. [2021-11-20 23:27:11,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 23:27:11,564 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:27:11,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:11,566 INFO L225 Difference]: With dead ends: 1562 [2021-11-20 23:27:11,566 INFO L226 Difference]: Without dead ends: 1562 [2021-11-20 23:27:11,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2021-11-20 23:27:11,567 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 173 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:11,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 143 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:27:11,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2021-11-20 23:27:11,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 1089. [2021-11-20 23:27:11,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 1080 states have (on average 1.9851851851851852) internal successors, (2144), 1088 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:11,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 2144 transitions. [2021-11-20 23:27:11,586 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 2144 transitions. Word has length 24 [2021-11-20 23:27:11,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:11,586 INFO L470 AbstractCegarLoop]: Abstraction has 1089 states and 2144 transitions. [2021-11-20 23:27:11,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:11,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 2144 transitions. [2021-11-20 23:27:11,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:27:11,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:11,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:11,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-11-20 23:27:11,588 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:27:11,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:11,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1673738226, now seen corresponding path program 16 times [2021-11-20 23:27:11,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:11,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988342232] [2021-11-20 23:27:11,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:11,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:11,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:27:11,838 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:11,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988342232] [2021-11-20 23:27:11,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988342232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:11,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:11,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:27:11,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453037063] [2021-11-20 23:27:11,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:11,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:27:11,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:11,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:27:11,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:27:11,839 INFO L87 Difference]: Start difference. First operand 1089 states and 2144 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:13,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:13,312 INFO L93 Difference]: Finished difference Result 1580 states and 3083 transitions. [2021-11-20 23:27:13,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 23:27:13,313 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:27:13,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:13,314 INFO L225 Difference]: With dead ends: 1580 [2021-11-20 23:27:13,314 INFO L226 Difference]: Without dead ends: 1580 [2021-11-20 23:27:13,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2021-11-20 23:27:13,315 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 183 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:13,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 141 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-20 23:27:13,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2021-11-20 23:27:13,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1084. [2021-11-20 23:27:13,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1075 states have (on average 1.9851162790697674) internal successors, (2134), 1083 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:13,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 2134 transitions. [2021-11-20 23:27:13,328 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 2134 transitions. Word has length 24 [2021-11-20 23:27:13,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:13,328 INFO L470 AbstractCegarLoop]: Abstraction has 1084 states and 2134 transitions. [2021-11-20 23:27:13,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:13,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 2134 transitions. [2021-11-20 23:27:13,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:27:13,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:13,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:13,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-11-20 23:27:13,330 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:27:13,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:13,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1190291028, now seen corresponding path program 17 times [2021-11-20 23:27:13,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:13,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661234731] [2021-11-20 23:27:13,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:13,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:27:13,584 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:13,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661234731] [2021-11-20 23:27:13,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661234731] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:13,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:13,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 23:27:13,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636425547] [2021-11-20 23:27:13,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:13,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 23:27:13,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:13,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 23:27:13,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-20 23:27:13,585 INFO L87 Difference]: Start difference. First operand 1084 states and 2134 transitions. Second operand has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:15,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:15,695 INFO L93 Difference]: Finished difference Result 1598 states and 3117 transitions. [2021-11-20 23:27:15,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 23:27:15,695 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:27:15,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:15,697 INFO L225 Difference]: With dead ends: 1598 [2021-11-20 23:27:15,697 INFO L226 Difference]: Without dead ends: 1598 [2021-11-20 23:27:15,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2021-11-20 23:27:15,698 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 180 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:15,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 139 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:27:15,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2021-11-20 23:27:15,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1079. [2021-11-20 23:27:15,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1070 states have (on average 1.9850467289719627) internal successors, (2124), 1078 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:15,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 2124 transitions. [2021-11-20 23:27:15,712 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 2124 transitions. Word has length 24 [2021-11-20 23:27:15,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:15,712 INFO L470 AbstractCegarLoop]: Abstraction has 1079 states and 2124 transitions. [2021-11-20 23:27:15,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:15,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 2124 transitions. [2021-11-20 23:27:15,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:27:15,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:15,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:15,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-11-20 23:27:15,713 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:27:15,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:15,713 INFO L85 PathProgramCache]: Analyzing trace with hash 976622262, now seen corresponding path program 18 times [2021-11-20 23:27:15,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:15,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583815442] [2021-11-20 23:27:15,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:15,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:15,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:27:15,888 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:15,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583815442] [2021-11-20 23:27:15,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583815442] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:15,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:15,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:27:15,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816142210] [2021-11-20 23:27:15,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:15,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:27:15,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:15,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:27:15,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:27:15,890 INFO L87 Difference]: Start difference. First operand 1079 states and 2124 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:18,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:18,276 INFO L93 Difference]: Finished difference Result 1983 states and 3827 transitions. [2021-11-20 23:27:18,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-20 23:27:18,276 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:27:18,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:18,278 INFO L225 Difference]: With dead ends: 1983 [2021-11-20 23:27:18,278 INFO L226 Difference]: Without dead ends: 1983 [2021-11-20 23:27:18,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=160, Invalid=596, Unknown=0, NotChecked=0, Total=756 [2021-11-20 23:27:18,282 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 223 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 2249 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:18,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 231 Invalid, 2280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2249 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-20 23:27:18,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2021-11-20 23:27:18,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1095. [2021-11-20 23:27:18,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 1086 states have (on average 1.985267034990792) internal successors, (2156), 1094 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:18,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 2156 transitions. [2021-11-20 23:27:18,298 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 2156 transitions. Word has length 24 [2021-11-20 23:27:18,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:18,299 INFO L470 AbstractCegarLoop]: Abstraction has 1095 states and 2156 transitions. [2021-11-20 23:27:18,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:18,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 2156 transitions. [2021-11-20 23:27:18,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:27:18,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:18,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:18,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-11-20 23:27:18,300 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:27:18,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:18,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1023989952, now seen corresponding path program 19 times [2021-11-20 23:27:18,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:18,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345670616] [2021-11-20 23:27:18,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:18,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:18,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:27:18,488 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:18,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345670616] [2021-11-20 23:27:18,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345670616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:18,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:18,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:27:18,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838426544] [2021-11-20 23:27:18,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:18,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:27:18,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:18,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:27:18,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:27:18,490 INFO L87 Difference]: Start difference. First operand 1095 states and 2156 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:20,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:20,221 INFO L93 Difference]: Finished difference Result 1771 states and 3415 transitions. [2021-11-20 23:27:20,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 23:27:20,221 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:27:20,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:20,223 INFO L225 Difference]: With dead ends: 1771 [2021-11-20 23:27:20,223 INFO L226 Difference]: Without dead ends: 1771 [2021-11-20 23:27:20,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2021-11-20 23:27:20,223 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 201 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:20,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 199 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 23:27:20,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2021-11-20 23:27:20,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1044. [2021-11-20 23:27:20,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 1035 states have (on average 1.9845410628019324) internal successors, (2054), 1043 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:20,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 2054 transitions. [2021-11-20 23:27:20,237 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 2054 transitions. Word has length 24 [2021-11-20 23:27:20,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:20,237 INFO L470 AbstractCegarLoop]: Abstraction has 1044 states and 2054 transitions. [2021-11-20 23:27:20,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:20,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 2054 transitions. [2021-11-20 23:27:20,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:27:20,239 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:20,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:20,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-11-20 23:27:20,239 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:27:20,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:20,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1388403814, now seen corresponding path program 20 times [2021-11-20 23:27:20,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:20,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271722879] [2021-11-20 23:27:20,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:20,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:20,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:27:20,410 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:20,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271722879] [2021-11-20 23:27:20,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271722879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:20,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:20,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:27:20,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686707732] [2021-11-20 23:27:20,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:20,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:27:20,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:20,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:27:20,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:27:20,411 INFO L87 Difference]: Start difference. First operand 1044 states and 2054 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:22,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:22,893 INFO L93 Difference]: Finished difference Result 2239 states and 4297 transitions. [2021-11-20 23:27:22,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-20 23:27:22,894 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:27:22,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:22,896 INFO L225 Difference]: With dead ends: 2239 [2021-11-20 23:27:22,896 INFO L226 Difference]: Without dead ends: 2239 [2021-11-20 23:27:22,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=203, Invalid=853, Unknown=0, NotChecked=0, Total=1056 [2021-11-20 23:27:22,896 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 236 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 2348 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 2384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:22,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 245 Invalid, 2384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2348 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-20 23:27:22,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2239 states. [2021-11-20 23:27:22,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2239 to 1062. [2021-11-20 23:27:22,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1053 states have (on average 1.9848053181386516) internal successors, (2090), 1061 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:22,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 2090 transitions. [2021-11-20 23:27:22,913 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 2090 transitions. Word has length 24 [2021-11-20 23:27:22,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:22,913 INFO L470 AbstractCegarLoop]: Abstraction has 1062 states and 2090 transitions. [2021-11-20 23:27:22,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:22,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 2090 transitions. [2021-11-20 23:27:22,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:27:22,914 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:22,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:22,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-11-20 23:27:22,914 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:27:22,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:22,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1435771504, now seen corresponding path program 21 times [2021-11-20 23:27:22,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:22,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801032538] [2021-11-20 23:27:22,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:22,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:23,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:27:23,082 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:23,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801032538] [2021-11-20 23:27:23,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801032538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:23,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:23,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:27:23,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900726717] [2021-11-20 23:27:23,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:23,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:27:23,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:23,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:27:23,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:27:23,083 INFO L87 Difference]: Start difference. First operand 1062 states and 2090 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:25,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:25,105 INFO L93 Difference]: Finished difference Result 2093 states and 4015 transitions. [2021-11-20 23:27:25,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 23:27:25,105 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:27:25,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:25,107 INFO L225 Difference]: With dead ends: 2093 [2021-11-20 23:27:25,107 INFO L226 Difference]: Without dead ends: 2093 [2021-11-20 23:27:25,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2021-11-20 23:27:25,113 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 192 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 1908 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 1939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:25,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 340 Invalid, 1939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1908 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 23:27:25,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2021-11-20 23:27:25,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 1039. [2021-11-20 23:27:25,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 1030 states have (on average 1.9844660194174757) internal successors, (2044), 1038 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:25,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 2044 transitions. [2021-11-20 23:27:25,143 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 2044 transitions. Word has length 24 [2021-11-20 23:27:25,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:25,144 INFO L470 AbstractCegarLoop]: Abstraction has 1039 states and 2044 transitions. [2021-11-20 23:27:25,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:25,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 2044 transitions. [2021-11-20 23:27:25,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:27:25,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:25,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:25,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-11-20 23:27:25,145 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:27:25,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:25,145 INFO L85 PathProgramCache]: Analyzing trace with hash 429335688, now seen corresponding path program 22 times [2021-11-20 23:27:25,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:25,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479792713] [2021-11-20 23:27:25,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:25,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:25,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:27:25,322 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:25,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479792713] [2021-11-20 23:27:25,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479792713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:25,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:25,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:27:25,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631117645] [2021-11-20 23:27:25,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:25,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:27:25,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:25,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:27:25,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:27:25,324 INFO L87 Difference]: Start difference. First operand 1039 states and 2044 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:27,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:27,382 INFO L93 Difference]: Finished difference Result 2105 states and 4054 transitions. [2021-11-20 23:27:27,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-20 23:27:27,382 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:27:27,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:27,384 INFO L225 Difference]: With dead ends: 2105 [2021-11-20 23:27:27,384 INFO L226 Difference]: Without dead ends: 2105 [2021-11-20 23:27:27,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=248, Invalid=744, Unknown=0, NotChecked=0, Total=992 [2021-11-20 23:27:27,385 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 355 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 1562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:27,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 57 Invalid, 1562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1507 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:27:27,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2021-11-20 23:27:27,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 1038. [2021-11-20 23:27:27,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 1029 states have (on average 1.9844509232264333) internal successors, (2042), 1037 states have internal predecessors, (2042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:27,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 2042 transitions. [2021-11-20 23:27:27,398 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 2042 transitions. Word has length 24 [2021-11-20 23:27:27,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:27,398 INFO L470 AbstractCegarLoop]: Abstraction has 1038 states and 2042 transitions. [2021-11-20 23:27:27,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:27,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 2042 transitions. [2021-11-20 23:27:27,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 23:27:27,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:27,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:27,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-11-20 23:27:27,399 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:27:27,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:27,399 INFO L85 PathProgramCache]: Analyzing trace with hash 476703378, now seen corresponding path program 23 times [2021-11-20 23:27:27,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:27,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780639178] [2021-11-20 23:27:27,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:27,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:27,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:27:27,564 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:27,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780639178] [2021-11-20 23:27:27,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780639178] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:27,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:27,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 23:27:27,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191643010] [2021-11-20 23:27:27,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:27,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 23:27:27,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:27,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 23:27:27,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:27:27,566 INFO L87 Difference]: Start difference. First operand 1038 states and 2042 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:29,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:29,339 INFO L93 Difference]: Finished difference Result 1685 states and 3237 transitions. [2021-11-20 23:27:29,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-20 23:27:29,339 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 23:27:29,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:29,341 INFO L225 Difference]: With dead ends: 1685 [2021-11-20 23:27:29,341 INFO L226 Difference]: Without dead ends: 1685 [2021-11-20 23:27:29,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2021-11-20 23:27:29,341 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 327 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:29,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 127 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-20 23:27:29,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2021-11-20 23:27:29,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 944. [2021-11-20 23:27:29,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 936 states have (on average 1.9861111111111112) internal successors, (1859), 943 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:29,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1859 transitions. [2021-11-20 23:27:29,363 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1859 transitions. Word has length 24 [2021-11-20 23:27:29,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:29,363 INFO L470 AbstractCegarLoop]: Abstraction has 944 states and 1859 transitions. [2021-11-20 23:27:29,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:29,364 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1859 transitions. [2021-11-20 23:27:29,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-20 23:27:29,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:29,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:29,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-11-20 23:27:29,365 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:27:29,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:29,366 INFO L85 PathProgramCache]: Analyzing trace with hash -2131496259, now seen corresponding path program 1 times [2021-11-20 23:27:29,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:29,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995211566] [2021-11-20 23:27:29,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:29,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:27:29,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:27:29,463 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:27:29,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995211566] [2021-11-20 23:27:29,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995211566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:27:29,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:27:29,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 23:27:29,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603444328] [2021-11-20 23:27:29,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:27:29,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 23:27:29,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:27:29,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 23:27:29,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 23:27:29,465 INFO L87 Difference]: Start difference. First operand 944 states and 1859 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:30,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:27:30,283 INFO L93 Difference]: Finished difference Result 1047 states and 2060 transitions. [2021-11-20 23:27:30,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:27:30,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-20 23:27:30,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:27:30,285 INFO L225 Difference]: With dead ends: 1047 [2021-11-20 23:27:30,285 INFO L226 Difference]: Without dead ends: 1047 [2021-11-20 23:27:30,285 INFO L932 BasicCegarLoop]: 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 [2021-11-20 23:27:30,286 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 36 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 23:27:30,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 30 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 23:27:30,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2021-11-20 23:27:30,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1008. [2021-11-20 23:27:30,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 1000 states have (on average 1.984) internal successors, (1984), 1007 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:30,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1984 transitions. [2021-11-20 23:27:30,301 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1984 transitions. Word has length 27 [2021-11-20 23:27:30,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:27:30,301 INFO L470 AbstractCegarLoop]: Abstraction has 1008 states and 1984 transitions. [2021-11-20 23:27:30,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:27:30,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1984 transitions. [2021-11-20 23:27:30,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 23:27:30,303 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:27:30,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:30,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-11-20 23:27:30,303 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2021-11-20 23:27:30,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:27:30,304 INFO L85 PathProgramCache]: Analyzing trace with hash -467352517, now seen corresponding path program 1 times [2021-11-20 23:27:30,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:27:30,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777252190] [2021-11-20 23:27:30,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:27:30,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:27:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:27:30,329 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 23:27:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:27:30,420 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-20 23:27:30,421 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 23:27:30,422 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2021-11-20 23:27:30,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2021-11-20 23:27:30,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2021-11-20 23:27:30,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2021-11-20 23:27:30,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2021-11-20 23:27:30,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2021-11-20 23:27:30,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2021-11-20 23:27:30,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2021-11-20 23:27:30,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2021-11-20 23:27:30,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2021-11-20 23:27:30,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2021-11-20 23:27:30,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (14 of 26 remaining) [2021-11-20 23:27:30,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2021-11-20 23:27:30,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2021-11-20 23:27:30,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2021-11-20 23:27:30,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2021-11-20 23:27:30,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2021-11-20 23:27:30,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2021-11-20 23:27:30,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2021-11-20 23:27:30,427 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2021-11-20 23:27:30,427 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2021-11-20 23:27:30,427 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2021-11-20 23:27:30,427 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2021-11-20 23:27:30,427 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2021-11-20 23:27:30,427 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2021-11-20 23:27:30,428 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2021-11-20 23:27:30,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-11-20 23:27:30,430 INFO L732 BasicCegarLoop]: Path program histogram: [23, 22, 10, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:27:30,435 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-20 23:27:30,436 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 23:27:30,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:27:30 BasicIcfg [2021-11-20 23:27:30,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 23:27:30,521 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 23:27:30,523 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 23:27:30,523 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 23:27:30,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:17:59" (3/4) ... [2021-11-20 23:27:30,526 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 23:27:30,530 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 23:27:30,531 INFO L158 Benchmark]: Toolchain (without parser) took 573183.62ms. Allocated memory was 115.3MB in the beginning and 182.5MB in the end (delta: 67.1MB). Free memory was 75.5MB in the beginning and 128.2MB in the end (delta: -52.6MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2021-11-20 23:27:30,531 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 115.3MB. Free memory was 95.1MB in the beginning and 95.1MB in the end (delta: 71.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:27:30,531 INFO L158 Benchmark]: CACSL2BoogieTranslator took 834.79ms. Allocated memory is still 115.3MB. Free memory was 75.4MB in the beginning and 63.6MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 23:27:30,531 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.42ms. Allocated memory is still 115.3MB. Free memory was 63.6MB in the beginning and 60.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 23:27:30,531 INFO L158 Benchmark]: Boogie Preprocessor took 74.33ms. Allocated memory is still 115.3MB. Free memory was 60.1MB in the beginning and 57.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:27:30,531 INFO L158 Benchmark]: RCFGBuilder took 750.81ms. Allocated memory is still 115.3MB. Free memory was 57.3MB in the beginning and 81.1MB in the end (delta: -23.8MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2021-11-20 23:27:30,532 INFO L158 Benchmark]: TraceAbstraction took 571438.52ms. Allocated memory was 115.3MB in the beginning and 182.5MB in the end (delta: 67.1MB). Free memory was 80.7MB in the beginning and 128.2MB in the end (delta: -47.5MB). Peak memory consumption was 110.9MB. Max. memory is 16.1GB. [2021-11-20 23:27:30,532 INFO L158 Benchmark]: Witness Printer took 9.34ms. Allocated memory is still 182.5MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:27:30,532 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 115.3MB. Free memory was 95.1MB in the beginning and 95.1MB in the end (delta: 71.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 834.79ms. Allocated memory is still 115.3MB. Free memory was 75.4MB in the beginning and 63.6MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.42ms. Allocated memory is still 115.3MB. Free memory was 63.6MB in the beginning and 60.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.33ms. Allocated memory is still 115.3MB. Free memory was 60.1MB in the beginning and 57.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 750.81ms. Allocated memory is still 115.3MB. Free memory was 57.3MB in the beginning and 81.1MB in the end (delta: -23.8MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 571438.52ms. Allocated memory was 115.3MB in the beginning and 182.5MB in the end (delta: 67.1MB). Free memory was 80.7MB in the beginning and 128.2MB in the end (delta: -47.5MB). Peak memory consumption was 110.9MB. Max. memory is 16.1GB. * Witness Printer took 9.34ms. Allocated memory is still 182.5MB. Free memory is still 128.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 423.8s, 211 PlacesBefore, 72 PlacesAfterwards, 207 TransitionsBefore, 68 TransitionsAfterwards, 4288 CoEnabledTransitionPairs, 21 FixpointIterations, 139 TrivialSequentialCompositions, 80 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 219 TotalNumberOfCompositions, 60039 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12164, positive: 9914, positive conditional: 0, positive unconditional: 9914, negative: 2250, negative conditional: 0, negative unconditional: 2250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3098, positive: 2946, positive conditional: 0, positive unconditional: 2946, negative: 152, negative conditional: 0, negative unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3098, positive: 2423, positive conditional: 0, positive unconditional: 2423, negative: 675, negative conditional: 0, negative unconditional: 675, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 675, positive: 523, positive conditional: 0, positive unconditional: 523, negative: 152, negative conditional: 0, negative unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 867, positive: 469, positive conditional: 0, positive unconditional: 469, negative: 399, negative conditional: 0, negative unconditional: 399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12164, positive: 6968, positive conditional: 0, positive unconditional: 6968, negative: 2098, negative conditional: 0, negative unconditional: 2098, unknown: 3098, unknown conditional: 0, unknown unconditional: 3098] , Statistics on independence cache: Total cache size (in pairs): 488, Positive cache size: 396, Positive conditional cache size: 0, Positive unconditional cache size: 396, Negative cache size: 92, Negative conditional cache size: 0, Negative unconditional cache size: 92 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1253]: Data race detected Data race detected The following path leads to a data race: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A; [L1231] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1232] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1245] 0 pthread_t t1; [L1246] 0 struct s *p = malloc(sizeof(struct s)); [L1247] CALL 0 init(p,9) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1247] RET 0 init(p,9) [L1248] 0 A = malloc(sizeof(struct s)) [L1249] 0 init(A,3) [L1249] CALL 0 init(A,3) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1249] RET 0 init(A,3) [L1250] EXPR 0 A->next [L1250] 0 A->next = p [L1251] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={11:0}, A_mutex={2:0}, B_mutex={3:0}, p={-2:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={13:0}] [L1253] EXPR 0 A->next VAL [A={11:0}, A_mutex={2:0}, B_mutex={3:0}, p={-2:0}, t1={13:0}] [L1234] 1 struct s *p = malloc(sizeof(struct s)); [L1235] 1 struct s *t; [L1236] CALL 1 init(p,7) [L1228] 1 p -> datum = x VAL [\old(x)=3, \old(x)=7, A={11:0}, A_mutex={2:0}, B_mutex={3:0}, p={-3:0}, p={11:0}, p={-3:0}, p={11:0}, p -> datum = x=102, x=7, x=3] [L1253] EXPR 0 A->next VAL [A={11:0}, A->next={-2:0}, A_mutex={2:0}, B_mutex={3:0}, p={-2:0}, t1={13:0}] [L1253] 0 p = A->next VAL [A={11:0}, A->next={-2:0}, A_mutex={2:0}, B_mutex={3:0}, p={-2:0}, t1={13:0}] [L1228] 1 p -> datum = x VAL [\old(x)=7, \old(x)=3, A={11:0}, A_mutex={2:0}, B_mutex={3:0}, p={-3:0}, p={11:0}, p={-3:0}, p={11:0}, x=7, x=3] [L1229] 1 p -> next = ((void *)0) [L1236] RET 1 init(p,7) [L1238] EXPR 1 A->next [L1238] 1 t = A->next [L1239] EXPR 1 A->next [L1239] 1 A->next = p VAL [A={11:0}, A->next = p=115, A_mutex={2:0}, arg={0:0}, arg={0:0}, B_mutex={3:0}, p={-3:0}, t={-2:0}] [L1253] 0 p = A->next VAL [A={11:0}, A->next={-2:0}, A_mutex={2:0}, B_mutex={3:0}, p={-2:0}, t1={13:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: A->next = p [1250] * C: A->next = p [1250] * C: A->next = p [1250] * C: p -> next = ((void *)0) [1229] * C: p -> datum = x [1228] * C: p -> datum = x [1228] * C: A->next = p [1239] * C: p -> next = ((void *)0) [1229] * C: p -> datum = x [1228] * C: p -> next = ((void *)0) [1229] * C: A->next = p [1250] * C: p -> next = ((void *)0) [1229] * C: p -> datum = x [1228] * C: A = malloc(sizeof(struct s)) [1248] and C: p = A->next [1253] - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1249]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1250]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1250]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1254]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 277 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 571.2s, OverallIterations: 71, TraceHistogramMax: 1, PathProgramHistogramMax: 23, EmptinessCheckTime: 0.1s, AutomataDifference: 129.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 423.9s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14600 SdHoareTripleChecker+Valid, 108.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14600 mSDsluCounter, 8905 SdHoareTripleChecker+Invalid, 97.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16207 mSDsCounter, 6491 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 89076 IncrementalHoareTripleChecker+Invalid, 95567 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6491 mSolverCounterUnsat, 2691 mSDtfsCounter, 89076 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1639 GetRequests, 5 SyntacticMatches, 36 SemanticMatches, 1598 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8515 ImplicationChecksByTransitivity, 25.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1290occurred in iteration=37, InterpolantAutomatonStates: 1424, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 70 MinimizatonAttempts, 43386 StatesRemovedByMinimization, 68 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 14.2s InterpolantComputationTime, 1348 NumberOfCodeBlocks, 1348 NumberOfCodeBlocksAsserted, 71 NumberOfCheckSat, 1248 ConstructedInterpolants, 0 QuantifiedInterpolants, 23278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 70 InterpolantComputations, 70 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 23:27:30,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a42c37-b8d3-4e37-a89f-f6544605c4e4/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE