./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF --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 68241c415e195cda32e2ec49a31f5c0e3a220e5729b169fd07b350b195e62294 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:28:06,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:28:06,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:28:07,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:28:07,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:28:07,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:28:07,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:28:07,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:28:07,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:28:07,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:28:07,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:28:07,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:28:07,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:28:07,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:28:07,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:28:07,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:28:07,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:28:07,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:28:07,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:28:07,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:28:07,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:28:07,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:28:07,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:28:07,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:28:07,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:28:07,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:28:07,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:28:07,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:28:07,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:28:07,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:28:07,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:28:07,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:28:07,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:28:07,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:28:07,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:28:07,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:28:07,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:28:07,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:28:07,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:28:07,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:28:07,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:28:07,111 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-13 01:28:07,163 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:28:07,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:28:07,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:28:07,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:28:07,165 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:28:07,165 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:28:07,166 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:28:07,166 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:28:07,166 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:28:07,166 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:28:07,167 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:28:07,167 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:28:07,168 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:28:07,168 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:28:07,168 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:28:07,168 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:28:07,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:28:07,169 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:28:07,170 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 01:28:07,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:28:07,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:28:07,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:28:07,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:28:07,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:28:07,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:28:07,171 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-13 01:28:07,171 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:28:07,171 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:28:07,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:28:07,173 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:28:07,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:28:07,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:28:07,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:28:07,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:28:07,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:28:07,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:28:07,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:28:07,175 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:28:07,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:28:07,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:28:07,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:28:07,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:28:07,176 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_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68241c415e195cda32e2ec49a31f5c0e3a220e5729b169fd07b350b195e62294 [2021-11-13 01:28:07,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:28:07,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:28:07,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:28:07,457 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:28:07,458 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:28:07,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i [2021-11-13 01:28:07,521 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF/data/4ed3339fe/a633a9c3284d4e41b810431203584676/FLAGc905861bb [2021-11-13 01:28:08,122 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:28:08,123 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i [2021-11-13 01:28:08,143 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF/data/4ed3339fe/a633a9c3284d4e41b810431203584676/FLAGc905861bb [2021-11-13 01:28:08,378 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF/data/4ed3339fe/a633a9c3284d4e41b810431203584676 [2021-11-13 01:28:08,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:28:08,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:28:08,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:28:08,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:28:08,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:28:08,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:28:08" (1/1) ... [2021-11-13 01:28:08,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8954964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:08, skipping insertion in model container [2021-11-13 01:28:08,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:28:08" (1/1) ... [2021-11-13 01:28:08,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:28:08,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:28:08,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:28:08,981 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:28:09,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:28:09,123 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:28:09,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09 WrapperNode [2021-11-13 01:28:09,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:28:09,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:28:09,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:28:09,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:28:09,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2021-11-13 01:28:09,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2021-11-13 01:28:09,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:28:09,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:28:09,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:28:09,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:28:09,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2021-11-13 01:28:09,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2021-11-13 01:28:09,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2021-11-13 01:28:09,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2021-11-13 01:28:09,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2021-11-13 01:28:09,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2021-11-13 01:28:09,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2021-11-13 01:28:09,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:28:09,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:28:09,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:28:09,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:28:09,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2021-11-13 01:28:09,278 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:28:09,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:28:09,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:28:09,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:28:09,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:28:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:28:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 01:28:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 01:28:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-13 01:28:09,352 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-13 01:28:09,352 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-13 01:28:09,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 01:28:09,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:28:09,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:28:09,353 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 01:28:09,800 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:28:09,800 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 01:28:09,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:28:09 BoogieIcfgContainer [2021-11-13 01:28:09,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:28:09,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:28:09,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:28:09,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:28:09,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:28:08" (1/3) ... [2021-11-13 01:28:09,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bf7995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:28:09, skipping insertion in model container [2021-11-13 01:28:09,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (2/3) ... [2021-11-13 01:28:09,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bf7995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:28:09, skipping insertion in model container [2021-11-13 01:28:09,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:28:09" (3/3) ... [2021-11-13 01:28:09,810 INFO L111 eAbstractionObserver]: Analyzing ICFG 03-practical_08-nonterm1.i [2021-11-13 01:28:09,816 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 01:28:09,816 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:28:09,816 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-13 01:28:09,816 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 01:28:09,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,843 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,844 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,845 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,846 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,847 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,848 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,849 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,850 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,850 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,850 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,850 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,850 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,851 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,851 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,851 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,851 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,851 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,852 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,852 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,852 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,852 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,852 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,853 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,853 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,853 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,854 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,854 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,854 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,854 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,854 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,855 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,855 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,855 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,856 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,856 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,856 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,856 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,856 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,856 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,857 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,861 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~post33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet35#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,862 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,863 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_fun_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 01:28:09,871 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-13 01:28:09,920 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:28:09,927 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 [2021-11-13 01:28:09,927 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-13 01:28:09,940 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-13 01:28:09,953 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 100 transitions, 208 flow [2021-11-13 01:28:09,957 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 100 transitions, 208 flow [2021-11-13 01:28:09,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 100 transitions, 208 flow [2021-11-13 01:28:10,033 INFO L129 PetriNetUnfolder]: 2/99 cut-off events. [2021-11-13 01:28:10,035 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-13 01:28:10,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 99 events. 2/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-11-13 01:28:10,045 INFO L116 LiptonReduction]: Number of co-enabled transitions 1638 [2021-11-13 01:28:13,586 INFO L131 LiptonReduction]: Checked pairs total: 6449 [2021-11-13 01:28:13,592 INFO L133 LiptonReduction]: Total number of compositions: 76 [2021-11-13 01:28:13,604 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 33 transitions, 74 flow [2021-11-13 01:28:13,634 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 184 states, 164 states have (on average 2.1097560975609757) internal successors, (346), 183 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:13,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 184 states, 164 states have (on average 2.1097560975609757) internal successors, (346), 183 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:13,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-13 01:28:13,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:28:13,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-13 01:28:13,645 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-11-13 01:28:13,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:28:13,650 INFO L85 PathProgramCache]: Analyzing trace with hash 348239, now seen corresponding path program 1 times [2021-11-13 01:28:13,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:28:13,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182920174] [2021-11-13 01:28:13,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:28:13,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:28:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:28:13,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:28:13,876 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:28:13,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182920174] [2021-11-13 01:28:13,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182920174] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:28:13,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:28:13,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-13 01:28:13,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568980292] [2021-11-13 01:28:13,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:28:13,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:28:13,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:28:13,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:28:13,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:28:13,913 INFO L87 Difference]: Start difference. First operand has 184 states, 164 states have (on average 2.1097560975609757) internal successors, (346), 183 states have internal predecessors, (346), 0 states have call successors, (0), 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 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:13,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:28:13,975 INFO L93 Difference]: Finished difference Result 155 states and 291 transitions. [2021-11-13 01:28:13,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:28:13,977 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2021-11-13 01:28:13,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:28:13,992 INFO L225 Difference]: With dead ends: 155 [2021-11-13 01:28:13,992 INFO L226 Difference]: Without dead ends: 151 [2021-11-13 01:28:13,993 INFO L932 BasicCegarLoop]: 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 [2021-11-13 01:28:13,998 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.74ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.33ms IncrementalHoareTripleChecker+Time [2021-11-13 01:28:13,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 18 Unknown, 0 Unchecked, 0.74ms Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 27.33ms Time] [2021-11-13 01:28:14,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-11-13 01:28:14,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-11-13 01:28:14,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 139 states have (on average 2.0215827338129495) internal successors, (281), 150 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 281 transitions. [2021-11-13 01:28:14,081 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 281 transitions. Word has length 3 [2021-11-13 01:28:14,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:28:14,082 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 281 transitions. [2021-11-13 01:28:14,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,082 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 281 transitions. [2021-11-13 01:28:14,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 01:28:14,083 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:28:14,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 01:28:14,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:28:14,084 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-11-13 01:28:14,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:28:14,089 INFO L85 PathProgramCache]: Analyzing trace with hash 334631572, now seen corresponding path program 1 times [2021-11-13 01:28:14,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:28:14,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955466814] [2021-11-13 01:28:14,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:28:14,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:28:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:28:14,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:28:14,205 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:28:14,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955466814] [2021-11-13 01:28:14,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955466814] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:28:14,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:28:14,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:28:14,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321558109] [2021-11-13 01:28:14,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:28:14,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:28:14,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:28:14,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:28:14,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:28:14,216 INFO L87 Difference]: Start difference. First operand 151 states and 281 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:28:14,291 INFO L93 Difference]: Finished difference Result 171 states and 315 transitions. [2021-11-13 01:28:14,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:28:14,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 01:28:14,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:28:14,295 INFO L225 Difference]: With dead ends: 171 [2021-11-13 01:28:14,295 INFO L226 Difference]: Without dead ends: 171 [2021-11-13 01:28:14,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:28:14,297 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 16 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.00ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.37ms IncrementalHoareTripleChecker+Time [2021-11-13 01:28:14,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 10 Invalid, 61 Unknown, 0 Unchecked, 1.00ms Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 63.37ms Time] [2021-11-13 01:28:14,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-11-13 01:28:14,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 154. [2021-11-13 01:28:14,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 144 states have (on average 1.9652777777777777) internal successors, (283), 153 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 283 transitions. [2021-11-13 01:28:14,310 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 283 transitions. Word has length 5 [2021-11-13 01:28:14,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:28:14,310 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 283 transitions. [2021-11-13 01:28:14,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,310 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 283 transitions. [2021-11-13 01:28:14,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 01:28:14,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:28:14,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:28:14,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 01:28:14,311 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-11-13 01:28:14,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:28:14,312 INFO L85 PathProgramCache]: Analyzing trace with hash -541421318, now seen corresponding path program 1 times [2021-11-13 01:28:14,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:28:14,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488029440] [2021-11-13 01:28:14,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:28:14,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:28:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:28:14,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:28:14,350 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:28:14,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488029440] [2021-11-13 01:28:14,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488029440] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:28:14,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:28:14,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:28:14,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114295855] [2021-11-13 01:28:14,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:28:14,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:28:14,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:28:14,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:28:14,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:28:14,352 INFO L87 Difference]: Start difference. First operand 154 states and 283 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:28:14,404 INFO L93 Difference]: Finished difference Result 159 states and 291 transitions. [2021-11-13 01:28:14,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:28:14,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-13 01:28:14,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:28:14,406 INFO L225 Difference]: With dead ends: 159 [2021-11-13 01:28:14,406 INFO L226 Difference]: Without dead ends: 149 [2021-11-13 01:28:14,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:28:14,407 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 13 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.71ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.61ms IncrementalHoareTripleChecker+Time [2021-11-13 01:28:14,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 7 Invalid, 65 Unknown, 0 Unchecked, 0.71ms Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 45.61ms Time] [2021-11-13 01:28:14,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-11-13 01:28:14,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2021-11-13 01:28:14,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 141 states have (on average 1.8865248226950355) internal successors, (266), 148 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 266 transitions. [2021-11-13 01:28:14,425 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 266 transitions. Word has length 7 [2021-11-13 01:28:14,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:28:14,425 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 266 transitions. [2021-11-13 01:28:14,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,425 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 266 transitions. [2021-11-13 01:28:14,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 01:28:14,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:28:14,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:28:14,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 01:28:14,427 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-11-13 01:28:14,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:28:14,427 INFO L85 PathProgramCache]: Analyzing trace with hash -577011607, now seen corresponding path program 1 times [2021-11-13 01:28:14,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:28:14,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520605965] [2021-11-13 01:28:14,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:28:14,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:28:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:28:14,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:28:14,462 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:28:14,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520605965] [2021-11-13 01:28:14,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520605965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:28:14,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:28:14,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:28:14,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316447932] [2021-11-13 01:28:14,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:28:14,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:28:14,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:28:14,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:28:14,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:28:14,465 INFO L87 Difference]: Start difference. First operand 149 states and 266 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:28:14,517 INFO L93 Difference]: Finished difference Result 146 states and 259 transitions. [2021-11-13 01:28:14,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:28:14,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-13 01:28:14,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:28:14,519 INFO L225 Difference]: With dead ends: 146 [2021-11-13 01:28:14,519 INFO L226 Difference]: Without dead ends: 146 [2021-11-13 01:28:14,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:28:14,524 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.56ms IncrementalHoareTripleChecker+Time [2021-11-13 01:28:14,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 10 Invalid, 52 Unknown, 0 Unchecked, 0.58ms Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 47.56ms Time] [2021-11-13 01:28:14,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-13 01:28:14,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-11-13 01:28:14,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 140 states have (on average 1.85) internal successors, (259), 145 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 259 transitions. [2021-11-13 01:28:14,537 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 259 transitions. Word has length 7 [2021-11-13 01:28:14,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:28:14,538 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 259 transitions. [2021-11-13 01:28:14,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,538 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 259 transitions. [2021-11-13 01:28:14,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 01:28:14,539 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:28:14,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:28:14,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 01:28:14,540 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-11-13 01:28:14,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:28:14,540 INFO L85 PathProgramCache]: Analyzing trace with hash -614768425, now seen corresponding path program 1 times [2021-11-13 01:28:14,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:28:14,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711898479] [2021-11-13 01:28:14,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:28:14,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:28:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:28:14,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:28:14,581 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:28:14,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711898479] [2021-11-13 01:28:14,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711898479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:28:14,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:28:14,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 01:28:14,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305969344] [2021-11-13 01:28:14,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:28:14,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:28:14,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:28:14,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:28:14,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:28:14,584 INFO L87 Difference]: Start difference. First operand 146 states and 259 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:28:14,614 INFO L93 Difference]: Finished difference Result 86 states and 135 transitions. [2021-11-13 01:28:14,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:28:14,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-13 01:28:14,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:28:14,616 INFO L225 Difference]: With dead ends: 86 [2021-11-13 01:28:14,616 INFO L226 Difference]: Without dead ends: 86 [2021-11-13 01:28:14,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:28:14,618 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 13 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.45ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.23ms IncrementalHoareTripleChecker+Time [2021-11-13 01:28:14,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 12 Invalid, 35 Unknown, 0 Unchecked, 0.45ms Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 27.23ms Time] [2021-11-13 01:28:14,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-13 01:28:14,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-11-13 01:28:14,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.646341463414634) internal successors, (135), 85 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 135 transitions. [2021-11-13 01:28:14,632 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 135 transitions. Word has length 9 [2021-11-13 01:28:14,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:28:14,632 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 135 transitions. [2021-11-13 01:28:14,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,633 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 135 transitions. [2021-11-13 01:28:14,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-13 01:28:14,633 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:28:14,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:28:14,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 01:28:14,634 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-11-13 01:28:14,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:28:14,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1111511869, now seen corresponding path program 1 times [2021-11-13 01:28:14,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:28:14,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668453786] [2021-11-13 01:28:14,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:28:14,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:28:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:28:14,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:28:14,689 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:28:14,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668453786] [2021-11-13 01:28:14,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668453786] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:28:14,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:28:14,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:28:14,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661642470] [2021-11-13 01:28:14,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:28:14,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:28:14,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:28:14,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:28:14,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:28:14,692 INFO L87 Difference]: Start difference. First operand 86 states and 135 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:28:14,748 INFO L93 Difference]: Finished difference Result 83 states and 125 transitions. [2021-11-13 01:28:14,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:28:14,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2021-11-13 01:28:14,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:28:14,750 INFO L225 Difference]: With dead ends: 83 [2021-11-13 01:28:14,750 INFO L226 Difference]: Without dead ends: 62 [2021-11-13 01:28:14,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:28:14,751 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.58ms IncrementalHoareTripleChecker+Time [2021-11-13 01:28:14,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 50 Unknown, 0 Unchecked, 0.56ms Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 48.58ms Time] [2021-11-13 01:28:14,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-13 01:28:14,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-11-13 01:28:14,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 60 states have (on average 1.5333333333333334) internal successors, (92), 61 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 92 transitions. [2021-11-13 01:28:14,763 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 92 transitions. Word has length 13 [2021-11-13 01:28:14,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:28:14,764 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 92 transitions. [2021-11-13 01:28:14,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:28:14,764 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 92 transitions. [2021-11-13 01:28:14,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 01:28:14,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:28:14,765 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:28:14,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 01:28:14,766 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2021-11-13 01:28:14,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:28:14,766 INFO L85 PathProgramCache]: Analyzing trace with hash -116107621, now seen corresponding path program 1 times [2021-11-13 01:28:14,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:28:14,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248227533] [2021-11-13 01:28:14,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:28:14,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:28:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:28:14,807 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 01:28:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:28:14,851 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-13 01:28:14,859 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 01:28:14,860 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2021-11-13 01:28:14,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2021-11-13 01:28:14,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2021-11-13 01:28:14,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2021-11-13 01:28:14,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (8 of 13 remaining) [2021-11-13 01:28:14,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2021-11-13 01:28:14,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2021-11-13 01:28:14,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2021-11-13 01:28:14,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2021-11-13 01:28:14,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2021-11-13 01:28:14,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2021-11-13 01:28:14,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2021-11-13 01:28:14,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2021-11-13 01:28:14,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 01:28:14,871 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:28:14,877 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-13 01:28:14,877 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:28:14,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:28:14 BasicIcfg [2021-11-13 01:28:14,928 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:28:14,929 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:28:14,929 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:28:14,929 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:28:14,929 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:28:09" (3/4) ... [2021-11-13 01:28:14,932 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 01:28:14,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:28:14,933 INFO L158 Benchmark]: Toolchain (without parser) took 6550.38ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 65.9MB in the beginning and 37.4MB in the end (delta: 28.5MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. [2021-11-13 01:28:14,933 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:28:14,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 740.56ms. Allocated memory is still 96.5MB. Free memory was 65.7MB in the beginning and 53.0MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 01:28:14,933 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.64ms. Allocated memory is still 96.5MB. Free memory was 53.0MB in the beginning and 50.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:28:14,934 INFO L158 Benchmark]: Boogie Preprocessor took 51.81ms. Allocated memory is still 96.5MB. Free memory was 50.9MB in the beginning and 49.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:28:14,934 INFO L158 Benchmark]: RCFGBuilder took 538.63ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 49.3MB in the beginning and 92.6MB in the end (delta: -43.3MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2021-11-13 01:28:14,934 INFO L158 Benchmark]: TraceAbstraction took 5123.70ms. Allocated memory is still 123.7MB. Free memory was 92.1MB in the beginning and 38.4MB in the end (delta: 53.6MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. [2021-11-13 01:28:14,935 INFO L158 Benchmark]: Witness Printer took 3.38ms. Allocated memory is still 123.7MB. Free memory is still 37.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:28:14,937 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 740.56ms. Allocated memory is still 96.5MB. Free memory was 65.7MB in the beginning and 53.0MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.64ms. Allocated memory is still 96.5MB. Free memory was 53.0MB in the beginning and 50.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.81ms. Allocated memory is still 96.5MB. Free memory was 50.9MB in the beginning and 49.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 538.63ms. Allocated memory was 96.5MB in the beginning and 123.7MB in the end (delta: 27.3MB). Free memory was 49.3MB in the beginning and 92.6MB in the end (delta: -43.3MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5123.70ms. Allocated memory is still 123.7MB. Free memory was 92.1MB in the beginning and 38.4MB in the end (delta: 53.6MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. * Witness Printer took 3.38ms. Allocated memory is still 123.7MB. Free memory is still 37.4MB. 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: 3.6s, 102 PlacesBefore, 36 PlacesAfterwards, 100 TransitionsBefore, 33 TransitionsAfterwards, 1638 CoEnabledTransitionPairs, 9 FixpointIterations, 36 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 6449 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2097, positive: 1692, positive conditional: 0, positive unconditional: 1692, negative: 405, negative conditional: 0, negative unconditional: 405, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1081, positive: 1024, positive conditional: 0, positive unconditional: 1024, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1081, positive: 929, positive conditional: 0, positive unconditional: 929, negative: 152, negative conditional: 0, negative unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 152, positive: 95, positive conditional: 0, positive unconditional: 95, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 207, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 127, negative conditional: 0, negative unconditional: 127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2097, positive: 668, positive conditional: 0, positive unconditional: 668, negative: 348, negative conditional: 0, negative unconditional: 348, unknown: 1081, unknown conditional: 0, unknown unconditional: 1081] , Statistics on independence cache: Total cache size (in pairs): 118, Positive cache size: 84, Positive conditional cache size: 0, Positive unconditional cache size: 84, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34 - 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: 939]: Data race detected Data race detected The following path leads to a data race: [L918] 0 int myglobal; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L936] 0 pthread_t id; [L937] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, mutex1={6:0}, mutex2={5:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L930] EXPR 1 myglobal+1 [L930] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={6:0}, mutex2={5:0}, myglobal=1] [L932] CALL 1 fun() [L939] EXPR 0 myglobal+1 [L939] 0 myglobal=myglobal+1 VAL [id={3:0}, mutex1={6:0}, mutex2={5:0}, myglobal=2] [L922] 1 int i = __VERIFIER_nondet_int(); [L939] 0 myglobal=myglobal+1 VAL [id={3:0}, mutex1={6:0}, mutex2={5:0}, myglobal=2, myglobal=myglobal+1=26] [L924] 1 myglobal+1 VAL [i=0, mutex1={6:0}, mutex2={5:0}, myglobal=2] [L939] 0 myglobal=myglobal+1 VAL [id={3:0}, mutex1={6:0}, mutex2={5:0}, myglobal=2, myglobal=myglobal+1=26] Now there is a data race on ~myglobal~0 between C: myglobal+1 [924] and C: myglobal=myglobal+1 [939] - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 941]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 942]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 937]: 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: 930]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: 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, 138 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 259.68ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 200.55ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 271 IncrementalHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 51 mSDtfsCounter, 271 mSolverCounterSat, 4.04ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 17 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 [2021-11-13 01:28:15,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba4399-b9c9-448d-983c-36ee85b62286/bin/utaipan-vmNK8stdcF/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