./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/singleton-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/singleton-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/bin/utaipan-Q6hlc19bkW --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 8df6b0e07576c0f44be76a2619065be37971886a948c5dcc3b73910d3c970468 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:21:38,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:21:38,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:21:38,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:21:38,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:21:38,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:21:38,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:21:38,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:21:38,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:21:38,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:21:38,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:21:38,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:21:38,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:21:38,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:21:38,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:21:38,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:21:38,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:21:38,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:21:38,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:21:38,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:21:38,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:21:38,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:21:38,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:21:38,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:21:38,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:21:38,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:21:38,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:21:38,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:21:38,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:21:38,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:21:38,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:21:38,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:21:38,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:21:38,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:21:38,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:21:38,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:21:38,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:21:38,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:21:38,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:21:38,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:21:38,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:21:38,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 14:21:38,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:21:38,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:21:38,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:21:38,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:21:38,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:21:38,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:21:38,383 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:21:38,383 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:21:38,383 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:21:38,384 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:21:38,384 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:21:38,384 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:21:38,384 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:21:38,384 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:21:38,384 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:21:38,385 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:21:38,385 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:21:38,385 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:21:38,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:21:38,386 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:21:38,386 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:21:38,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:21:38,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:21:38,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:21:38,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:21:38,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:21:38,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:21:38,387 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 14:21:38,387 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:21:38,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:21:38,388 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:21:38,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:21:38,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:21:38,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:21:38,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:21:38,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:21:38,389 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:21:38,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:21:38,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:21:38,390 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:21:38,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:21:38,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:21:38,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:21:38,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8df6b0e07576c0f44be76a2619065be37971886a948c5dcc3b73910d3c970468 [2022-11-23 14:21:38,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:21:38,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:21:38,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:21:38,699 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:21:38,699 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:21:38,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread/singleton-b.i [2022-11-23 14:21:41,728 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:21:42,035 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:21:42,036 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/sv-benchmarks/c/pthread/singleton-b.i [2022-11-23 14:21:42,066 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/bin/utaipan-Q6hlc19bkW/data/32b942990/07da432e00664a548f0b4dda52743d3b/FLAGae0db52aa [2022-11-23 14:21:42,087 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/bin/utaipan-Q6hlc19bkW/data/32b942990/07da432e00664a548f0b4dda52743d3b [2022-11-23 14:21:42,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:21:42,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:21:42,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:21:42,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:21:42,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:21:42,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:21:42" (1/1) ... [2022-11-23 14:21:42,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce185f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:42, skipping insertion in model container [2022-11-23 14:21:42,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:21:42" (1/1) ... [2022-11-23 14:21:42,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:21:42,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:21:42,849 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/sv-benchmarks/c/pthread/singleton-b.i[55202,55215] [2022-11-23 14:21:42,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:21:42,883 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:21:42,920 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/sv-benchmarks/c/pthread/singleton-b.i[55202,55215] [2022-11-23 14:21:42,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:21:43,006 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:21:43,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:43 WrapperNode [2022-11-23 14:21:43,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:21:43,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:21:43,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:21:43,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:21:43,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:43" (1/1) ... [2022-11-23 14:21:43,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:43" (1/1) ... [2022-11-23 14:21:43,080 INFO L138 Inliner]: procedures = 323, calls = 47, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2022-11-23 14:21:43,081 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:21:43,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:21:43,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:21:43,082 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:21:43,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:43" (1/1) ... [2022-11-23 14:21:43,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:43" (1/1) ... [2022-11-23 14:21:43,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:43" (1/1) ... [2022-11-23 14:21:43,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:43" (1/1) ... [2022-11-23 14:21:43,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:43" (1/1) ... [2022-11-23 14:21:43,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:43" (1/1) ... [2022-11-23 14:21:43,122 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:43" (1/1) ... [2022-11-23 14:21:43,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:43" (1/1) ... [2022-11-23 14:21:43,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:21:43,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:21:43,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:21:43,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:21:43,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:43" (1/1) ... [2022-11-23 14:21:43,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:21:43,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:21:43,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:21:43,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75e7788c-06d9-488b-8d87-7927ea221c2d/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:21:43,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:21:43,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:21:43,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:21:43,240 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-11-23 14:21:43,240 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-11-23 14:21:43,240 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-23 14:21:43,240 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-23 14:21:43,240 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-23 14:21:43,240 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-23 14:21:43,241 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-23 14:21:43,241 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-23 14:21:43,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:21:43,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:21:43,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:21:43,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:21:43,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:21:43,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:21:43,243 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:21:43,410 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:21:43,412 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:21:43,859 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:21:43,893 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:21:43,894 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:21:43,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:43 BoogieIcfgContainer [2022-11-23 14:21:43,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:21:43,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:21:43,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:21:43,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:21:43,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:21:42" (1/3) ... [2022-11-23 14:21:43,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9d1364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:21:43, skipping insertion in model container [2022-11-23 14:21:43,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:21:43" (2/3) ... [2022-11-23 14:21:43,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f9d1364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:21:43, skipping insertion in model container [2022-11-23 14:21:43,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:21:43" (3/3) ... [2022-11-23 14:21:43,907 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton-b.i [2022-11-23 14:21:43,916 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:21:43,930 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:21:43,930 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-23 14:21:43,930 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:21:44,102 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-11-23 14:21:44,170 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:21:44,193 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 306 places, 296 transitions, 699 flow [2022-11-23 14:21:44,199 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 306 places, 296 transitions, 699 flow [2022-11-23 14:21:44,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 306 places, 296 transitions, 699 flow [2022-11-23 14:21:44,305 INFO L130 PetriNetUnfolder]: 6/209 cut-off events. [2022-11-23 14:21:44,305 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-23 14:21:44,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 209 events. 6/209 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 191 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 186. Up to 3 conditions per place. [2022-11-23 14:21:44,322 INFO L119 LiptonReduction]: Number of co-enabled transitions 7920 [2022-11-23 14:21:50,776 INFO L134 LiptonReduction]: Checked pairs total: 47161 [2022-11-23 14:21:50,776 INFO L136 LiptonReduction]: Total number of compositions: 176 [2022-11-23 14:21:50,784 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 153 places, 142 transitions, 391 flow [2022-11-23 14:22:05,180 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 313773 states, 313364 states have (on average 5.126893963569523) internal successors, (1606584), 313772 states have internal predecessors, (1606584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:22:05,236 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:22:05,275 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77050613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:22:05,275 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-11-23 14:22:06,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 313773 states, 313364 states have (on average 5.126893963569523) internal successors, (1606584), 313772 states have internal predecessors, (1606584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:22:06,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:22:06,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:22:06,764 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:22:06,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-23 14:22:06,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:22:06,772 INFO L85 PathProgramCache]: Analyzing trace with hash 725504013, now seen corresponding path program 1 times [2022-11-23 14:22:06,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:22:06,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369030663] [2022-11-23 14:22:06,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:06,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:22:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:22:07,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:22:07,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:22:07,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369030663] [2022-11-23 14:22:07,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369030663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:22:07,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:22:07,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:22:07,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912764349] [2022-11-23 14:22:07,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:22:07,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:22:07,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:22:07,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:22:07,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:22:07,875 INFO L87 Difference]: Start difference. First operand has 313773 states, 313364 states have (on average 5.126893963569523) internal successors, (1606584), 313772 states have internal predecessors, (1606584), 0 states have call successors, (0), 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 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:22:12,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:22:12,199 INFO L93 Difference]: Finished difference Result 188955 states and 950720 transitions. [2022-11-23 14:22:12,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:22:12,214 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 14:22:12,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:22:15,192 INFO L225 Difference]: With dead ends: 188955 [2022-11-23 14:22:15,192 INFO L226 Difference]: Without dead ends: 188950 [2022-11-23 14:22:15,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:22:15,197 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:22:15,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:22:15,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188950 states. [2022-11-23 14:22:25,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188950 to 188950. [2022-11-23 14:22:26,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188950 states, 188857 states have (on average 5.034015154323113) internal successors, (950709), 188949 states have internal predecessors, (950709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:22:28,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188950 states to 188950 states and 950709 transitions. [2022-11-23 14:22:28,913 INFO L78 Accepts]: Start accepts. Automaton has 188950 states and 950709 transitions. Word has length 5 [2022-11-23 14:22:28,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:22:28,914 INFO L495 AbstractCegarLoop]: Abstraction has 188950 states and 950709 transitions. [2022-11-23 14:22:28,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:22:28,915 INFO L276 IsEmpty]: Start isEmpty. Operand 188950 states and 950709 transitions. [2022-11-23 14:22:28,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:22:28,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:22:28,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:22:28,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:22:28,917 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-23 14:22:28,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:22:28,918 INFO L85 PathProgramCache]: Analyzing trace with hash -958845506, now seen corresponding path program 1 times [2022-11-23 14:22:28,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:22:28,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993759144] [2022-11-23 14:22:28,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:28,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:22:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:22:29,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:22:29,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:22:29,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993759144] [2022-11-23 14:22:29,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993759144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:22:29,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:22:29,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:22:29,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444089661] [2022-11-23 14:22:29,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:22:29,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:22:29,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:22:29,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:22:29,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:22:29,343 INFO L87 Difference]: Start difference. First operand 188950 states and 950709 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:22:36,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:22:36,039 INFO L93 Difference]: Finished difference Result 293631 states and 1461061 transitions. [2022-11-23 14:22:36,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:22:36,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 14:22:36,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted.