./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.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_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/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_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/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_7e6efd76-6c83-48b5-8d2c-8a394711e901/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 e4f1df14aa697a6b5c77ee19ecaf0110c602a30de6eaa386be3f2cf188498154 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:32:10,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:32:10,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:32:10,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:32:10,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:32:10,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:32:10,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:32:10,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:32:10,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:32:10,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:32:10,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:32:10,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:32:10,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:32:10,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:32:10,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:32:10,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:32:10,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:32:10,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:32:10,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:32:10,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:32:10,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:32:10,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:32:10,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:32:10,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:32:10,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:32:10,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:32:10,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:32:10,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:32:10,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:32:10,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:32:10,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:32:10,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:32:10,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:32:10,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:32:10,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:32:10,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:32:10,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:32:10,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:32:10,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:32:10,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:32:10,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:32:10,223 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-12 22:32:10,251 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:32:10,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:32:10,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:32:10,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:32:10,252 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:32:10,252 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:32:10,253 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:32:10,253 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:32:10,253 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:32:10,253 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:32:10,253 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:32:10,254 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:32:10,254 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:32:10,254 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:32:10,254 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:32:10,255 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:32:10,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:32:10,255 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:32:10,256 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:32:10,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:32:10,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:32:10,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:32:10,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:32:10,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:32:10,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:32:10,257 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-12 22:32:10,257 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:32:10,257 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:32:10,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:32:10,258 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:32:10,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:32:10,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:32:10,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:32:10,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:32:10,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:32:10,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:32:10,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:32:10,260 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:32:10,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:32:10,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:32:10,260 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:32:10,260 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:32:10,261 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_7e6efd76-6c83-48b5-8d2c-8a394711e901/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4f1df14aa697a6b5c77ee19ecaf0110c602a30de6eaa386be3f2cf188498154 [2021-11-12 22:32:10,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:32:10,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:32:10,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:32:10,548 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:32:10,549 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:32:10,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i [2021-11-12 22:32:10,622 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/data/bdece1c5f/900c723f6afe42b2bdf40ad419fcc6f9/FLAG2c0f0140b [2021-11-12 22:32:11,189 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:32:11,190 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i [2021-11-12 22:32:11,207 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/data/bdece1c5f/900c723f6afe42b2bdf40ad419fcc6f9/FLAG2c0f0140b [2021-11-12 22:32:11,462 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/data/bdece1c5f/900c723f6afe42b2bdf40ad419fcc6f9 [2021-11-12 22:32:11,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:32:11,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:32:11,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:32:11,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:32:11,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:32:11,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:32:11" (1/1) ... [2021-11-12 22:32:11,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7d6224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:11, skipping insertion in model container [2021-11-12 22:32:11,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:32:11" (1/1) ... [2021-11-12 22:32:11,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:32:11,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:32:11,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:32:11,989 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:32:12,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:32:12,103 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:32:12,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:12 WrapperNode [2021-11-12 22:32:12,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:32:12,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:32:12,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:32:12,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:32:12,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:12" (1/1) ... [2021-11-12 22:32:12,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:12" (1/1) ... [2021-11-12 22:32:12,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:32:12,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:32:12,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:32:12,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:32:12,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:12" (1/1) ... [2021-11-12 22:32:12,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:12" (1/1) ... [2021-11-12 22:32:12,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:12" (1/1) ... [2021-11-12 22:32:12,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:12" (1/1) ... [2021-11-12 22:32:12,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:12" (1/1) ... [2021-11-12 22:32:12,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:12" (1/1) ... [2021-11-12 22:32:12,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:12" (1/1) ... [2021-11-12 22:32:12,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:32:12,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:32:12,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:32:12,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:32:12,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:12" (1/1) ... [2021-11-12 22:32:12,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:32:12,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:32:12,287 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:32:12,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:32:12,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:32:12,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:32:12,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 22:32:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 22:32:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-12 22:32:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-12 22:32:12,331 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-12 22:32:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 22:32:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:32:12,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:32:12,333 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 22:32:12,653 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:32:12,653 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:32:12,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:32:12 BoogieIcfgContainer [2021-11-12 22:32:12,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:32:12,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:32:12,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:32:12,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:32:12,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:32:11" (1/3) ... [2021-11-12 22:32:12,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739224eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:32:12, skipping insertion in model container [2021-11-12 22:32:12,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:12" (2/3) ... [2021-11-12 22:32:12,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@739224eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:32:12, skipping insertion in model container [2021-11-12 22:32:12,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:32:12" (3/3) ... [2021-11-12 22:32:12,665 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_01-simple_rc.i [2021-11-12 22:32:12,671 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 22:32:12,671 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:32:12,671 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-12 22:32:12,671 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 22:32:12,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,696 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,696 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,696 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,697 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,697 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,697 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,697 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,698 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,698 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,698 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,698 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,701 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,704 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,705 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,705 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:12,709 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-12 22:32:12,755 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:32:12,763 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 [2021-11-12 22:32:12,763 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-12 22:32:12,777 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 22:32:12,798 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 71 transitions, 150 flow [2021-11-12 22:32:12,801 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 71 transitions, 150 flow [2021-11-12 22:32:12,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 71 transitions, 150 flow [2021-11-12 22:32:12,866 INFO L129 PetriNetUnfolder]: 0/70 cut-off events. [2021-11-12 22:32:12,866 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-12 22:32:12,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 0/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-11-12 22:32:12,873 INFO L116 LiptonReduction]: Number of co-enabled transitions 630 [2021-11-12 22:32:15,846 INFO L131 LiptonReduction]: Checked pairs total: 2698 [2021-11-12 22:32:15,846 INFO L133 LiptonReduction]: Total number of compositions: 57 [2021-11-12 22:32:15,858 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 22 transitions, 52 flow [2021-11-12 22:32:15,878 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 90 states, 78 states have (on average 2.0384615384615383) internal successors, (159), 89 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:15,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 78 states have (on average 2.0384615384615383) internal successors, (159), 89 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:15,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-12 22:32:15,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:15,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-12 22:32:15,895 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:32:15,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:15,900 INFO L85 PathProgramCache]: Analyzing trace with hash 239598, now seen corresponding path program 1 times [2021-11-12 22:32:15,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:32:15,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727944829] [2021-11-12 22:32:15,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:15,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:32:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:16,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:16,136 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:32:16,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727944829] [2021-11-12 22:32:16,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727944829] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:16,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:16,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-12 22:32:16,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490992031] [2021-11-12 22:32:16,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:16,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:32:16,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:32:16,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:32:16,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:32:16,166 INFO L87 Difference]: Start difference. First operand has 90 states, 78 states have (on average 2.0384615384615383) internal successors, (159), 89 states have internal predecessors, (159), 0 states have call successors, (0), 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) [2021-11-12 22:32:16,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:16,206 INFO L93 Difference]: Finished difference Result 81 states and 142 transitions. [2021-11-12 22:32:16,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:32:16,208 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 [2021-11-12 22:32:16,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:16,220 INFO L225 Difference]: With dead ends: 81 [2021-11-12 22:32:16,220 INFO L226 Difference]: Without dead ends: 79 [2021-11-12 22:32:16,221 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 [2021-11-12 22:32:16,224 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.33ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.23ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:16,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 12 Unknown, 0 Unchecked, 0.33ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 21.23ms Time] [2021-11-12 22:32:16,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-12 22:32:16,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-11-12 22:32:16,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 71 states have (on average 1.943661971830986) internal successors, (138), 78 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:16,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 138 transitions. [2021-11-12 22:32:16,263 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 138 transitions. Word has length 3 [2021-11-12 22:32:16,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:16,264 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 138 transitions. [2021-11-12 22:32:16,264 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) [2021-11-12 22:32:16,264 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 138 transitions. [2021-11-12 22:32:16,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 22:32:16,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:16,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 22:32:16,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 22:32:16,265 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:32:16,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:16,266 INFO L85 PathProgramCache]: Analyzing trace with hash 230239099, now seen corresponding path program 1 times [2021-11-12 22:32:16,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:32:16,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369366668] [2021-11-12 22:32:16,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:16,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:32:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:16,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:16,364 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:32:16,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369366668] [2021-11-12 22:32:16,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369366668] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:16,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:16,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 22:32:16,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739349102] [2021-11-12 22:32:16,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:16,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:32:16,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:32:16,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:32:16,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:32:16,370 INFO L87 Difference]: Start difference. First operand 79 states and 138 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) [2021-11-12 22:32:16,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:16,430 INFO L93 Difference]: Finished difference Result 86 states and 148 transitions. [2021-11-12 22:32:16,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:32:16,431 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 [2021-11-12 22:32:16,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:16,438 INFO L225 Difference]: With dead ends: 86 [2021-11-12 22:32:16,438 INFO L226 Difference]: Without dead ends: 86 [2021-11-12 22:32:16,439 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 [2021-11-12 22:32:16,441 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 10 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.13ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.49ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:16,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 7 Invalid, 39 Unknown, 0 Unchecked, 1.13ms Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 42.49ms Time] [2021-11-12 22:32:16,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-12 22:32:16,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 78. [2021-11-12 22:32:16,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 71 states have (on average 1.8873239436619718) internal successors, (134), 77 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:16,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 134 transitions. [2021-11-12 22:32:16,468 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 134 transitions. Word has length 5 [2021-11-12 22:32:16,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:16,468 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 134 transitions. [2021-11-12 22:32:16,468 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) [2021-11-12 22:32:16,468 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 134 transitions. [2021-11-12 22:32:16,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 22:32:16,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:16,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:16,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 22:32:16,470 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:32:16,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:16,470 INFO L85 PathProgramCache]: Analyzing trace with hash -2078490196, now seen corresponding path program 1 times [2021-11-12 22:32:16,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:32:16,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186121121] [2021-11-12 22:32:16,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:16,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:32:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:16,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:16,533 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:32:16,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186121121] [2021-11-12 22:32:16,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186121121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:16,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:16,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 22:32:16,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967787745] [2021-11-12 22:32:16,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:16,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:32:16,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:32:16,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:32:16,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:32:16,538 INFO L87 Difference]: Start difference. First operand 78 states and 134 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) [2021-11-12 22:32:16,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:16,581 INFO L93 Difference]: Finished difference Result 79 states and 133 transitions. [2021-11-12 22:32:16,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:32:16,582 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 [2021-11-12 22:32:16,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:16,583 INFO L225 Difference]: With dead ends: 79 [2021-11-12 22:32:16,583 INFO L226 Difference]: Without dead ends: 69 [2021-11-12 22:32:16,584 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 [2021-11-12 22:32:16,589 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.26ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.55ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:16,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 5 Invalid, 39 Unknown, 0 Unchecked, 1.26ms Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 34.55ms Time] [2021-11-12 22:32:16,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-12 22:32:16,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-11-12 22:32:16,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 63 states have (on average 1.7936507936507937) internal successors, (113), 68 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:16,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 113 transitions. [2021-11-12 22:32:16,611 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 113 transitions. Word has length 7 [2021-11-12 22:32:16,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:16,612 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 113 transitions. [2021-11-12 22:32:16,612 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) [2021-11-12 22:32:16,612 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 113 transitions. [2021-11-12 22:32:16,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 22:32:16,613 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:16,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:16,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-12 22:32:16,614 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:32:16,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:16,615 INFO L85 PathProgramCache]: Analyzing trace with hash -2075476884, now seen corresponding path program 1 times [2021-11-12 22:32:16,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:32:16,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885034395] [2021-11-12 22:32:16,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:16,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:32:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:16,653 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:32:16,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885034395] [2021-11-12 22:32:16,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885034395] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:16,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:16,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 22:32:16,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191158543] [2021-11-12 22:32:16,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:16,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:32:16,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:32:16,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:32:16,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:32:16,656 INFO L87 Difference]: Start difference. First operand 69 states and 113 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) [2021-11-12 22:32:16,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:16,687 INFO L93 Difference]: Finished difference Result 66 states and 103 transitions. [2021-11-12 22:32:16,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:32:16,688 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 [2021-11-12 22:32:16,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:16,688 INFO L225 Difference]: With dead ends: 66 [2021-11-12 22:32:16,689 INFO L226 Difference]: Without dead ends: 56 [2021-11-12 22:32:16,689 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 [2021-11-12 22:32:16,690 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.43ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.62ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:16,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 5 Invalid, 38 Unknown, 0 Unchecked, 0.43ms Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 27.62ms Time] [2021-11-12 22:32:16,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-12 22:32:16,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-11-12 22:32:16,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 52 states have (on average 1.5769230769230769) internal successors, (82), 55 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:16,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 82 transitions. [2021-11-12 22:32:16,695 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 82 transitions. Word has length 7 [2021-11-12 22:32:16,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:16,696 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 82 transitions. [2021-11-12 22:32:16,696 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) [2021-11-12 22:32:16,696 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 82 transitions. [2021-11-12 22:32:16,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-12 22:32:16,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:16,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:16,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-12 22:32:16,697 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:32:16,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:16,698 INFO L85 PathProgramCache]: Analyzing trace with hash -269234694, now seen corresponding path program 1 times [2021-11-12 22:32:16,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:32:16,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547822179] [2021-11-12 22:32:16,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:16,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:32:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:32:16,747 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 22:32:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:32:16,790 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 22:32:16,790 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 22:32:16,791 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2021-11-12 22:32:16,793 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2021-11-12 22:32:16,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2021-11-12 22:32:16,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2021-11-12 22:32:16,794 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 8 remaining) [2021-11-12 22:32:16,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2021-11-12 22:32:16,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2021-11-12 22:32:16,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2021-11-12 22:32:16,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-12 22:32:16,798 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-12 22:32:16,804 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-12 22:32:16,805 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:32:16,818 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.DataRaceFoundResult.getLongDescription(DataRaceFoundResult.java:136) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 22:32:16,821 INFO L158 Benchmark]: Toolchain (without parser) took 5355.17ms. Allocated memory was 86.0MB in the beginning and 146.8MB in the end (delta: 60.8MB). Free memory was 45.3MB in the beginning and 115.2MB in the end (delta: -69.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:32:16,822 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 86.0MB. Free memory is still 63.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:32:16,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.74ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 45.1MB in the beginning and 79.0MB in the end (delta: -33.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 22:32:16,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.43ms. Allocated memory is still 121.6MB. Free memory was 79.0MB in the beginning and 77.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:32:16,826 INFO L158 Benchmark]: Boogie Preprocessor took 57.09ms. Allocated memory is still 121.6MB. Free memory was 76.5MB in the beginning and 75.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:32:16,826 INFO L158 Benchmark]: RCFGBuilder took 410.75ms. Allocated memory is still 121.6MB. Free memory was 75.5MB in the beginning and 63.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-12 22:32:16,827 INFO L158 Benchmark]: TraceAbstraction took 4161.74ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 63.2MB in the beginning and 115.2MB in the end (delta: -52.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:32:16,830 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 86.0MB. Free memory is still 63.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 628.74ms. Allocated memory was 86.0MB in the beginning and 121.6MB in the end (delta: 35.7MB). Free memory was 45.1MB in the beginning and 79.0MB in the end (delta: -33.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.43ms. Allocated memory is still 121.6MB. Free memory was 79.0MB in the beginning and 77.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.09ms. Allocated memory is still 121.6MB. Free memory was 76.5MB in the beginning and 75.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 410.75ms. Allocated memory is still 121.6MB. Free memory was 75.5MB in the beginning and 63.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4161.74ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 63.2MB in the beginning and 115.2MB in the end (delta: -52.0MB). 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: 3.0s, 75 PlacesBefore, 26 PlacesAfterwards, 71 TransitionsBefore, 22 TransitionsAfterwards, 630 CoEnabledTransitionPairs, 8 FixpointIterations, 30 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 57 TotalNumberOfCompositions, 2698 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1385, positive: 1137, positive conditional: 0, positive unconditional: 1137, negative: 248, negative conditional: 0, negative unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 465, positive: 428, positive conditional: 0, positive unconditional: 428, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 465, positive: 388, positive conditional: 0, positive unconditional: 388, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 77, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 141, positive: 78, positive conditional: 0, positive unconditional: 78, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1385, positive: 709, positive conditional: 0, positive unconditional: 709, negative: 211, negative conditional: 0, negative unconditional: 211, unknown: 465, unknown conditional: 0, unknown unconditional: 465] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 73, Positive conditional cache size: 0, Positive unconditional cache size: 73, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - 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 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-12 22:32:16,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/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_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/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 e4f1df14aa697a6b5c77ee19ecaf0110c602a30de6eaa386be3f2cf188498154 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:32:19,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:32:19,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:32:19,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:32:19,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:32:19,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:32:19,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:32:19,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:32:19,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:32:19,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:32:19,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:32:19,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:32:19,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:32:19,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:32:19,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:32:19,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:32:19,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:32:19,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:32:19,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:32:19,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:32:19,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:32:19,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:32:19,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:32:19,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:32:19,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:32:19,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:32:19,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:32:19,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:32:19,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:32:19,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:32:19,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:32:19,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:32:19,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:32:19,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:32:19,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:32:19,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:32:19,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:32:19,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:32:19,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:32:19,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:32:19,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:32:19,397 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf [2021-11-12 22:32:19,440 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:32:19,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:32:19,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:32:19,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:32:19,442 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:32:19,442 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:32:19,443 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:32:19,443 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:32:19,443 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:32:19,443 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:32:19,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:32:19,446 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:32:19,446 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 22:32:19,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:32:19,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:32:19,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:32:19,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:32:19,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:32:19,447 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-12 22:32:19,447 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:32:19,448 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:32:19,448 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:32:19,448 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:32:19,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:32:19,448 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:32:19,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:32:19,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:32:19,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:32:19,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:32:19,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:32:19,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:32:19,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:32:19,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:32:19,451 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:32:19,451 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:32:19,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:32:19,452 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:32:19,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:32:19,452 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_7e6efd76-6c83-48b5-8d2c-8a394711e901/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4f1df14aa697a6b5c77ee19ecaf0110c602a30de6eaa386be3f2cf188498154 [2021-11-12 22:32:19,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:32:19,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:32:19,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:32:19,852 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:32:19,854 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:32:19,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i [2021-11-12 22:32:19,925 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/data/18a9a40e7/624415f2ab724bd4be780587bdb8cc55/FLAGf6e552dc0 [2021-11-12 22:32:20,602 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:32:20,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i [2021-11-12 22:32:20,629 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/data/18a9a40e7/624415f2ab724bd4be780587bdb8cc55/FLAGf6e552dc0 [2021-11-12 22:32:20,842 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/data/18a9a40e7/624415f2ab724bd4be780587bdb8cc55 [2021-11-12 22:32:20,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:32:20,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:32:20,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:32:20,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:32:20,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:32:20,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:32:20" (1/1) ... [2021-11-12 22:32:20,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e83dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:20, skipping insertion in model container [2021-11-12 22:32:20,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:32:20" (1/1) ... [2021-11-12 22:32:20,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:32:20,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:32:21,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:32:21,474 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:32:21,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:32:21,613 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:32:21,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:21 WrapperNode [2021-11-12 22:32:21,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:32:21,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:32:21,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:32:21,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:32:21,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:21" (1/1) ... [2021-11-12 22:32:21,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:21" (1/1) ... [2021-11-12 22:32:21,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:32:21,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:32:21,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:32:21,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:32:21,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:21" (1/1) ... [2021-11-12 22:32:21,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:21" (1/1) ... [2021-11-12 22:32:21,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:21" (1/1) ... [2021-11-12 22:32:21,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:21" (1/1) ... [2021-11-12 22:32:21,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:21" (1/1) ... [2021-11-12 22:32:21,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:21" (1/1) ... [2021-11-12 22:32:21,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:21" (1/1) ... [2021-11-12 22:32:21,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:32:21,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:32:21,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:32:21,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:32:21,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:21" (1/1) ... [2021-11-12 22:32:21,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:32:21,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:32:21,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:32:21,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:32:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:32:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:32:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:32:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:32:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:32:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-12 22:32:21,790 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-12 22:32:21,790 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-12 22:32:21,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:32:21,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:32:21,792 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 22:32:22,182 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:32:22,183 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:32:22,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:32:22 BoogieIcfgContainer [2021-11-12 22:32:22,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:32:22,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:32:22,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:32:22,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:32:22,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:32:20" (1/3) ... [2021-11-12 22:32:22,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d93ab9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:32:22, skipping insertion in model container [2021-11-12 22:32:22,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:32:21" (2/3) ... [2021-11-12 22:32:22,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d93ab9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:32:22, skipping insertion in model container [2021-11-12 22:32:22,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:32:22" (3/3) ... [2021-11-12 22:32:22,193 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_01-simple_rc.i [2021-11-12 22:32:22,198 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 22:32:22,199 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:32:22,199 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-12 22:32:22,199 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 22:32:22,239 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,239 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,240 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,240 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,240 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,248 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,248 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,248 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,249 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,249 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,249 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,250 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,250 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,250 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,251 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,254 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,255 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,256 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,257 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,258 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,265 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,266 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,267 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,268 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,268 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:32:22,275 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-12 22:32:22,341 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:32:22,361 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 [2021-11-12 22:32:22,361 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-12 22:32:22,377 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 22:32:22,392 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 72 transitions, 152 flow [2021-11-12 22:32:22,399 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 72 transitions, 152 flow [2021-11-12 22:32:22,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 72 transitions, 152 flow [2021-11-12 22:32:22,466 INFO L129 PetriNetUnfolder]: 0/71 cut-off events. [2021-11-12 22:32:22,467 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-12 22:32:22,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 0/71 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-11-12 22:32:22,474 INFO L116 LiptonReduction]: Number of co-enabled transitions 630 [2021-11-12 22:32:26,945 INFO L131 LiptonReduction]: Checked pairs total: 2815 [2021-11-12 22:32:26,945 INFO L133 LiptonReduction]: Total number of compositions: 58 [2021-11-12 22:32:26,954 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 22 transitions, 52 flow [2021-11-12 22:32:26,967 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 90 states, 78 states have (on average 2.0384615384615383) internal successors, (159), 89 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:26,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 78 states have (on average 2.0384615384615383) internal successors, (159), 89 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:26,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-12 22:32:26,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:26,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-12 22:32:26,976 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:32:26,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:26,982 INFO L85 PathProgramCache]: Analyzing trace with hash 241585, now seen corresponding path program 1 times [2021-11-12 22:32:26,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:26,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519721558] [2021-11-12 22:32:26,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:26,995 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:26,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:26,998 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:27,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:32:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:27,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:32:27,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:27,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:27,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:27,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:27,125 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:27,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519721558] [2021-11-12 22:32:27,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519721558] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:27,126 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:27,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-11-12 22:32:27,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702849309] [2021-11-12 22:32:27,129 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:27,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:32:27,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:27,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:32:27,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:32:27,185 INFO L87 Difference]: Start difference. First operand has 90 states, 78 states have (on average 2.0384615384615383) internal successors, (159), 89 states have internal predecessors, (159), 0 states have call successors, (0), 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) [2021-11-12 22:32:27,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:27,240 INFO L93 Difference]: Finished difference Result 81 states and 142 transitions. [2021-11-12 22:32:27,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:32:27,243 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 [2021-11-12 22:32:27,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:27,251 INFO L225 Difference]: With dead ends: 81 [2021-11-12 22:32:27,252 INFO L226 Difference]: Without dead ends: 79 [2021-11-12 22:32:27,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:32:27,256 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.30ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.99ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:27,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 12 Unknown, 0 Unchecked, 0.30ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 33.99ms Time] [2021-11-12 22:32:27,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-11-12 22:32:27,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-11-12 22:32:27,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 71 states have (on average 1.943661971830986) internal successors, (138), 78 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:27,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 138 transitions. [2021-11-12 22:32:27,296 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 138 transitions. Word has length 3 [2021-11-12 22:32:27,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:27,297 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 138 transitions. [2021-11-12 22:32:27,297 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) [2021-11-12 22:32:27,298 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 138 transitions. [2021-11-12 22:32:27,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-12 22:32:27,298 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:27,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-12 22:32:27,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:32:27,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:27,512 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:32:27,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:27,512 INFO L85 PathProgramCache]: Analyzing trace with hash 232119716, now seen corresponding path program 1 times [2021-11-12 22:32:27,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:27,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856832419] [2021-11-12 22:32:27,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:27,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:27,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:27,514 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:27,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:32:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:27,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:32:27,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:27,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:27,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:27,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:27,605 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:27,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856832419] [2021-11-12 22:32:27,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856832419] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:27,606 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:27,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:32:27,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390683141] [2021-11-12 22:32:27,606 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:27,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:32:27,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:27,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:32:27,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:32:27,609 INFO L87 Difference]: Start difference. First operand 79 states and 138 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) [2021-11-12 22:32:27,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:27,689 INFO L93 Difference]: Finished difference Result 86 states and 148 transitions. [2021-11-12 22:32:27,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:32:27,689 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 [2021-11-12 22:32:27,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:27,693 INFO L225 Difference]: With dead ends: 86 [2021-11-12 22:32:27,693 INFO L226 Difference]: Without dead ends: 86 [2021-11-12 22:32:27,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:32:27,695 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.75ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.60ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:27,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 5 Invalid, 41 Unknown, 0 Unchecked, 0.75ms Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 68.60ms Time] [2021-11-12 22:32:27,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-12 22:32:27,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 78. [2021-11-12 22:32:27,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 71 states have (on average 1.8873239436619718) internal successors, (134), 77 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:27,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 134 transitions. [2021-11-12 22:32:27,736 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 134 transitions. Word has length 5 [2021-11-12 22:32:27,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:27,736 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 134 transitions. [2021-11-12 22:32:27,736 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) [2021-11-12 22:32:27,737 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 134 transitions. [2021-11-12 22:32:27,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 22:32:27,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:27,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:27,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:32:27,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:27,950 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:32:27,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:27,951 INFO L85 PathProgramCache]: Analyzing trace with hash -271245126, now seen corresponding path program 1 times [2021-11-12 22:32:27,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:27,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640831287] [2021-11-12 22:32:27,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:27,952 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:27,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:27,953 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:27,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:32:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:28,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:32:28,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:28,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:28,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:28,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:28,090 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:28,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640831287] [2021-11-12 22:32:28,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1640831287] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:28,091 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:28,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:32:28,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058920597] [2021-11-12 22:32:28,091 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:28,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:32:28,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:28,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:32:28,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:32:28,093 INFO L87 Difference]: Start difference. First operand 78 states and 134 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) [2021-11-12 22:32:28,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:28,170 INFO L93 Difference]: Finished difference Result 83 states and 140 transitions. [2021-11-12 22:32:28,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:32:28,173 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 [2021-11-12 22:32:28,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:28,174 INFO L225 Difference]: With dead ends: 83 [2021-11-12 22:32:28,175 INFO L226 Difference]: Without dead ends: 73 [2021-11-12 22:32:28,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:32:28,177 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.32ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.83ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:28,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 40 Unknown, 0 Unchecked, 1.32ms Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 60.83ms Time] [2021-11-12 22:32:28,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-12 22:32:28,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2021-11-12 22:32:28,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 63 states have (on average 1.7936507936507937) internal successors, (113), 68 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:28,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 113 transitions. [2021-11-12 22:32:28,203 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 113 transitions. Word has length 7 [2021-11-12 22:32:28,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:28,204 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 113 transitions. [2021-11-12 22:32:28,204 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) [2021-11-12 22:32:28,205 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 113 transitions. [2021-11-12 22:32:28,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-12 22:32:28,206 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:28,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:28,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:32:28,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:28,430 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:32:28,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:28,430 INFO L85 PathProgramCache]: Analyzing trace with hash -239969827, now seen corresponding path program 1 times [2021-11-12 22:32:28,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:28,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425845278] [2021-11-12 22:32:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:28,432 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:28,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:28,433 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:28,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:32:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:32:28,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:32:28,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:32:28,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:28,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:32:28,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:32:28,568 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:32:28,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425845278] [2021-11-12 22:32:28,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425845278] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:32:28,569 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:32:28,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:32:28,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132370599] [2021-11-12 22:32:28,570 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:32:28,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:32:28,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:32:28,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:32:28,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:32:28,572 INFO L87 Difference]: Start difference. First operand 69 states and 113 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) [2021-11-12 22:32:28,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:32:28,638 INFO L93 Difference]: Finished difference Result 66 states and 103 transitions. [2021-11-12 22:32:28,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:32:28,639 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 [2021-11-12 22:32:28,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:32:28,639 INFO L225 Difference]: With dead ends: 66 [2021-11-12 22:32:28,640 INFO L226 Difference]: Without dead ends: 56 [2021-11-12 22:32:28,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:32:28,641 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.57ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.64ms IncrementalHoareTripleChecker+Time [2021-11-12 22:32:28,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 5 Invalid, 39 Unknown, 0 Unchecked, 0.57ms Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 61.64ms Time] [2021-11-12 22:32:28,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-12 22:32:28,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-11-12 22:32:28,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 52 states have (on average 1.5769230769230769) internal successors, (82), 55 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:32:28,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 82 transitions. [2021-11-12 22:32:28,649 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 82 transitions. Word has length 7 [2021-11-12 22:32:28,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:32:28,649 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 82 transitions. [2021-11-12 22:32:28,650 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) [2021-11-12 22:32:28,650 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 82 transitions. [2021-11-12 22:32:28,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-12 22:32:28,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:32:28,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:32:28,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-12 22:32:28,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:28,863 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-11-12 22:32:28,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:32:28,869 INFO L85 PathProgramCache]: Analyzing trace with hash 2145872581, now seen corresponding path program 1 times [2021-11-12 22:32:28,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:32:28,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293241698] [2021-11-12 22:32:28,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:32:28,870 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:32:28,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:32:28,871 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:32:28,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:32:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:32:28,943 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 22:32:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:32:29,007 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-12 22:32:29,007 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 22:32:29,009 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2021-11-12 22:32:29,010 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2021-11-12 22:32:29,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2021-11-12 22:32:29,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 8 remaining) [2021-11-12 22:32:29,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2021-11-12 22:32:29,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2021-11-12 22:32:29,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2021-11-12 22:32:29,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2021-11-12 22:32:29,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:32:29,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:32:29,215 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-12 22:32:29,220 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-12 22:32:29,220 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:32:29,240 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.DataRaceFoundResult.getLongDescription(DataRaceFoundResult.java:136) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 22:32:29,246 INFO L158 Benchmark]: Toolchain (without parser) took 8396.57ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 42.8MB in the beginning and 41.1MB in the end (delta: 1.7MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2021-11-12 22:32:29,246 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 65.0MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:32:29,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 761.88ms. Allocated memory is still 65.0MB. Free memory was 42.6MB in the beginning and 30.8MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-12 22:32:29,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.59ms. Allocated memory is still 65.0MB. Free memory was 30.8MB in the beginning and 28.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:32:29,257 INFO L158 Benchmark]: Boogie Preprocessor took 29.53ms. Allocated memory is still 65.0MB. Free memory was 28.5MB in the beginning and 26.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:32:29,272 INFO L158 Benchmark]: RCFGBuilder took 489.81ms. Allocated memory is still 65.0MB. Free memory was 26.9MB in the beginning and 37.0MB in the end (delta: -10.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-11-12 22:32:29,273 INFO L158 Benchmark]: TraceAbstraction took 7058.24ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 36.5MB in the beginning and 41.1MB in the end (delta: -4.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2021-11-12 22:32:29,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 65.0MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 761.88ms. Allocated memory is still 65.0MB. Free memory was 42.6MB in the beginning and 30.8MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.59ms. Allocated memory is still 65.0MB. Free memory was 30.8MB in the beginning and 28.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.53ms. Allocated memory is still 65.0MB. Free memory was 28.5MB in the beginning and 26.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 489.81ms. Allocated memory is still 65.0MB. Free memory was 26.9MB in the beginning and 37.0MB in the end (delta: -10.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * TraceAbstraction took 7058.24ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 36.5MB in the beginning and 41.1MB in the end (delta: -4.7MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 76 PlacesBefore, 26 PlacesAfterwards, 72 TransitionsBefore, 22 TransitionsAfterwards, 630 CoEnabledTransitionPairs, 9 FixpointIterations, 31 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 58 TotalNumberOfCompositions, 2815 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1322, positive: 1056, positive conditional: 0, positive unconditional: 1056, negative: 266, negative conditional: 0, negative unconditional: 266, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 468, positive: 429, positive conditional: 0, positive unconditional: 429, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 468, positive: 390, positive conditional: 0, positive unconditional: 390, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 78, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 306, positive: 119, positive conditional: 0, positive unconditional: 119, negative: 186, negative conditional: 0, negative unconditional: 186, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1322, positive: 627, positive conditional: 0, positive unconditional: 627, negative: 227, negative conditional: 0, negative unconditional: 227, unknown: 468, unknown conditional: 0, unknown unconditional: 468] , Statistics on independence cache: Total cache size (in pairs): 99, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - 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 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-12 22:32:29,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e6efd76-6c83-48b5-8d2c-8a394711e901/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 Result: ERROR: ExceptionOrErrorResult: NullPointerException: null