./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/07_rand.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/07_rand.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --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 205a9486f54af3fadf53566888e578b0d398a9ea9e18a2466103c3619a5ade13 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:03:42,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:03:42,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:03:42,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:03:42,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:03:42,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:03:42,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:03:42,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:03:42,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:03:42,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:03:42,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:03:42,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:03:42,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:03:42,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:03:42,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:03:42,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:03:42,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:03:42,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:03:42,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:03:42,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:03:42,241 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:03:42,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:03:42,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:03:42,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:03:42,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:03:42,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:03:42,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:03:42,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:03:42,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:03:42,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:03:42,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:03:42,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:03:42,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:03:42,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:03:42,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:03:42,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:03:42,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:03:42,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:03:42,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:03:42,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:03:42,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:03:42,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:03:42,253 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 19:03:42,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:03:42,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:03:42,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:03:42,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:03:42,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:03:42,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:03:42,269 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:03:42,269 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:03:42,269 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:03:42,269 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 19:03:42,269 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:03:42,269 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:03:42,270 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 19:03:42,270 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 19:03:42,270 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:03:42,270 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 19:03:42,270 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 19:03:42,270 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 19:03:42,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:03:42,271 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:03:42,271 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:03:42,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 19:03:42,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:03:42,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:03:42,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:03:42,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:03:42,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:03:42,272 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:03:42,272 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:03:42,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:03:42,273 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:03:42,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:03:42,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:03:42,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:03:42,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:03:42,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:03:42,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:03:42,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:03:42,274 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 19:03:42,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 19:03:42,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:03:42,274 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:03:42,274 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:03:42,275 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:/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 205a9486f54af3fadf53566888e578b0d398a9ea9e18a2466103c3619a5ade13 [2022-04-18 19:03:42,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:03:42,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:03:42,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:03:42,449 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:03:42,450 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:03:42,451 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/07_rand.i [2022-04-18 19:03:42,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/39aec6cd0/613a22c0623942ec8770e854e7778221/FLAG785bea8b1 [2022-04-18 19:03:42,925 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:03:42,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/07_rand.i [2022-04-18 19:03:42,933 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/39aec6cd0/613a22c0623942ec8770e854e7778221/FLAG785bea8b1 [2022-04-18 19:03:42,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/39aec6cd0/613a22c0623942ec8770e854e7778221 [2022-04-18 19:03:42,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:03:42,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:03:42,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:03:42,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:03:42,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:03:42,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:03:42" (1/1) ... [2022-04-18 19:03:42,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a9d5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:42, skipping insertion in model container [2022-04-18 19:03:42,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:03:42" (1/1) ... [2022-04-18 19:03:42,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:03:42,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:03:43,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/07_rand.i[30402,30415] [2022-04-18 19:03:43,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/07_rand.i[30630,30643] [2022-04-18 19:03:43,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/07_rand.i[30891,30904] [2022-04-18 19:03:43,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:03:43,252 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:03:43,286 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/07_rand.i[30402,30415] [2022-04-18 19:03:43,291 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/07_rand.i[30630,30643] [2022-04-18 19:03:43,294 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/07_rand.i[30891,30904] [2022-04-18 19:03:43,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:03:43,322 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:03:43,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43 WrapperNode [2022-04-18 19:03:43,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:03:43,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:03:43,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:03:43,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:03:43,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ... [2022-04-18 19:03:43,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ... [2022-04-18 19:03:43,380 INFO L137 Inliner]: procedures = 174, calls = 21, calls flagged for inlining = 13, calls inlined = 16, statements flattened = 162 [2022-04-18 19:03:43,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:03:43,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:03:43,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:03:43,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:03:43,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ... [2022-04-18 19:03:43,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ... [2022-04-18 19:03:43,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ... [2022-04-18 19:03:43,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ... [2022-04-18 19:03:43,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ... [2022-04-18 19:03:43,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ... [2022-04-18 19:03:43,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ... [2022-04-18 19:03:43,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:03:43,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:03:43,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:03:43,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:03:43,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (1/1) ... [2022-04-18 19:03:43,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:03:43,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:03:43,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 19:03:43,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 19:03:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 19:03:43,488 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 19:03:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 19:03:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:03:43,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:03:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:03:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 19:03:43,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:03:43,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:03:43,490 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 19:03:43,619 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:03:43,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:03:43,796 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:03:43,838 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:03:43,839 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 19:03:43,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:03:43 BoogieIcfgContainer [2022-04-18 19:03:43,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:03:43,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:03:43,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:03:43,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:03:43,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:03:42" (1/3) ... [2022-04-18 19:03:43,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4045f60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:03:43, skipping insertion in model container [2022-04-18 19:03:43,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:43" (2/3) ... [2022-04-18 19:03:43,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4045f60e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:03:43, skipping insertion in model container [2022-04-18 19:03:43,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:03:43" (3/3) ... [2022-04-18 19:03:43,846 INFO L111 eAbstractionObserver]: Analyzing ICFG 07_rand.i [2022-04-18 19:03:43,849 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:03:43,849 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:03:43,849 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-04-18 19:03:43,849 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:03:43,880 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:03:43,906 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:03:43,910 INFO L340 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 [2022-04-18 19:03:43,910 INFO L341 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-04-18 19:03:43,920 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:03:43,929 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 131 transitions, 267 flow [2022-04-18 19:03:43,931 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 131 transitions, 267 flow [2022-04-18 19:03:43,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 131 transitions, 267 flow [2022-04-18 19:03:43,993 INFO L129 PetriNetUnfolder]: 11/142 cut-off events. [2022-04-18 19:03:43,993 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:03:43,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 142 events. 11/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 219 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 113. Up to 4 conditions per place. [2022-04-18 19:03:43,999 INFO L116 LiptonReduction]: Number of co-enabled transitions 2800 [2022-04-18 19:03:46,829 INFO L131 LiptonReduction]: Checked pairs total: 2625 [2022-04-18 19:03:46,829 INFO L133 LiptonReduction]: Total number of compositions: 175 [2022-04-18 19:03:46,835 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 29 transitions, 63 flow [2022-04-18 19:03:46,862 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 102 states, 69 states have (on average 2.8115942028985508) internal successors, (194), 101 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:46,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 69 states have (on average 2.8115942028985508) internal successors, (194), 101 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:46,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-04-18 19:03:46,867 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:46,867 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-04-18 19:03:46,868 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-04-18 19:03:46,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:46,871 INFO L85 PathProgramCache]: Analyzing trace with hash 25075184, now seen corresponding path program 1 times [2022-04-18 19:03:46,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:46,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234645725] [2022-04-18 19:03:46,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:46,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:47,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:47,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:47,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234645725] [2022-04-18 19:03:47,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234645725] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:47,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:47,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:03:47,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868530229] [2022-04-18 19:03:47,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:47,021 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:03:47,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:47,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:03:47,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:03:47,035 INFO L87 Difference]: Start difference. First operand has 102 states, 69 states have (on average 2.8115942028985508) internal successors, (194), 101 states have internal predecessors, (194), 0 states have call successors, (0), 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 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:47,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:47,056 INFO L93 Difference]: Finished difference Result 19 states and 39 transitions. [2022-04-18 19:03:47,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:03:47,057 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-04-18 19:03:47,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:47,062 INFO L225 Difference]: With dead ends: 19 [2022-04-18 19:03:47,062 INFO L226 Difference]: Without dead ends: 19 [2022-04-18 19:03:47,063 INFO L912 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 [2022-04-18 19:03:47,065 INFO L913 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:47,065 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:03:47,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-04-18 19:03:47,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-04-18 19:03:47,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:47,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 39 transitions. [2022-04-18 19:03:47,084 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 39 transitions. Word has length 4 [2022-04-18 19:03:47,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:47,085 INFO L478 AbstractCegarLoop]: Abstraction has 19 states and 39 transitions. [2022-04-18 19:03:47,085 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:47,085 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 39 transitions. [2022-04-18 19:03:47,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:03:47,086 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:47,086 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-04-18 19:03:47,086 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:03:47,086 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-04-18 19:03:47,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:47,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1672609921, now seen corresponding path program 1 times [2022-04-18 19:03:47,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:47,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752863177] [2022-04-18 19:03:47,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:47,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:03:47,117 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:03:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:03:47,149 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:03:47,149 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:03:47,152 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2022-04-18 19:03:47,153 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2022-04-18 19:03:47,154 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2022-04-18 19:03:47,154 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2022-04-18 19:03:47,155 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2022-04-18 19:03:47,159 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2022-04-18 19:03:47,159 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2022-04-18 19:03:47,159 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2022-04-18 19:03:47,159 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2022-04-18 19:03:47,160 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2022-04-18 19:03:47,160 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2022-04-18 19:03:47,160 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2022-04-18 19:03:47,160 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2022-04-18 19:03:47,161 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2022-04-18 19:03:47,161 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2022-04-18 19:03:47,161 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2022-04-18 19:03:47,162 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2022-04-18 19:03:47,162 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2022-04-18 19:03:47,162 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2022-04-18 19:03:47,162 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2022-04-18 19:03:47,162 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2022-04-18 19:03:47,163 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2022-04-18 19:03:47,163 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2022-04-18 19:03:47,163 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2022-04-18 19:03:47,163 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2022-04-18 19:03:47,163 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2022-04-18 19:03:47,164 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2022-04-18 19:03:47,165 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2022-04-18 19:03:47,167 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2022-04-18 19:03:47,167 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2022-04-18 19:03:47,167 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2022-04-18 19:03:47,167 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2022-04-18 19:03:47,167 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2022-04-18 19:03:47,167 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:03:47,169 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-18 19:03:47,173 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:03:47,173 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 19:03:47,212 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:03:47,213 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:03:47,214 INFO L340 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 [2022-04-18 19:03:47,214 INFO L341 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2022-04-18 19:03:47,216 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:03:47,217 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 218 places, 232 transitions, 476 flow [2022-04-18 19:03:47,217 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 218 places, 232 transitions, 476 flow [2022-04-18 19:03:47,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 218 places, 232 transitions, 476 flow [2022-04-18 19:03:47,250 INFO L129 PetriNetUnfolder]: 21/256 cut-off events. [2022-04-18 19:03:47,251 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 19:03:47,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 256 events. 21/256 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 779 event pairs, 0 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 213. Up to 6 conditions per place. [2022-04-18 19:03:47,263 INFO L116 LiptonReduction]: Number of co-enabled transitions 25800 [2022-04-18 19:03:50,766 INFO L131 LiptonReduction]: Checked pairs total: 88440 [2022-04-18 19:03:50,767 INFO L133 LiptonReduction]: Total number of compositions: 274 [2022-04-18 19:03:50,767 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 94 transitions, 200 flow [2022-04-18 19:03:50,987 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9322 states, 8726 states have (on average 3.2238138895255557) internal successors, (28131), 9321 states have internal predecessors, (28131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:51,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 9322 states, 8726 states have (on average 3.2238138895255557) internal successors, (28131), 9321 states have internal predecessors, (28131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:51,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-04-18 19:03:51,013 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:51,014 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-04-18 19:03:51,014 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-04-18 19:03:51,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:51,016 INFO L85 PathProgramCache]: Analyzing trace with hash 42674048, now seen corresponding path program 1 times [2022-04-18 19:03:51,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:51,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724333880] [2022-04-18 19:03:51,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:51,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:51,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:51,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:51,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724333880] [2022-04-18 19:03:51,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724333880] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:51,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:51,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:03:51,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62947564] [2022-04-18 19:03:51,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:51,073 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:03:51,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:51,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:03:51,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:03:51,087 INFO L87 Difference]: Start difference. First operand has 9322 states, 8726 states have (on average 3.2238138895255557) internal successors, (28131), 9321 states have internal predecessors, (28131), 0 states have call successors, (0), 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 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:51,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:51,153 INFO L93 Difference]: Finished difference Result 4324 states and 12597 transitions. [2022-04-18 19:03:51,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:03:51,154 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-04-18 19:03:51,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:51,182 INFO L225 Difference]: With dead ends: 4324 [2022-04-18 19:03:51,183 INFO L226 Difference]: Without dead ends: 4324 [2022-04-18 19:03:51,183 INFO L912 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 [2022-04-18 19:03:51,184 INFO L913 BasicCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:51,184 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:03:51,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4324 states. [2022-04-18 19:03:51,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4324 to 4324. [2022-04-18 19:03:51,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4324 states, 4275 states have (on average 2.9466666666666668) internal successors, (12597), 4323 states have internal predecessors, (12597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:51,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 12597 transitions. [2022-04-18 19:03:51,360 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 12597 transitions. Word has length 4 [2022-04-18 19:03:51,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:51,361 INFO L478 AbstractCegarLoop]: Abstraction has 4324 states and 12597 transitions. [2022-04-18 19:03:51,361 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:51,361 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 12597 transitions. [2022-04-18 19:03:51,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:03:51,361 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:51,362 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-04-18 19:03:51,362 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 19:03:51,362 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-04-18 19:03:51,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:51,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1940077773, now seen corresponding path program 1 times [2022-04-18 19:03:51,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:51,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412472178] [2022-04-18 19:03:51,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:51,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:51,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:51,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:51,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412472178] [2022-04-18 19:03:51,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412472178] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:51,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:51,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:03:51,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515327604] [2022-04-18 19:03:51,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:51,391 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:03:51,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:51,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:03:51,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:03:51,392 INFO L87 Difference]: Start difference. First operand 4324 states and 12597 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:51,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:51,498 INFO L93 Difference]: Finished difference Result 5435 states and 15831 transitions. [2022-04-18 19:03:51,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:03:51,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-04-18 19:03:51,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:51,524 INFO L225 Difference]: With dead ends: 5435 [2022-04-18 19:03:51,524 INFO L226 Difference]: Without dead ends: 5435 [2022-04-18 19:03:51,525 INFO L912 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 [2022-04-18 19:03:51,525 INFO L913 BasicCegarLoop]: 43 mSDtfsCounter, 61 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:51,526 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 66 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:03:51,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5435 states. [2022-04-18 19:03:51,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5435 to 4175. [2022-04-18 19:03:51,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4175 states, 4135 states have (on average 2.9753325272067714) internal successors, (12303), 4174 states have internal predecessors, (12303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:51,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4175 states to 4175 states and 12303 transitions. [2022-04-18 19:03:51,676 INFO L78 Accepts]: Start accepts. Automaton has 4175 states and 12303 transitions. Word has length 6 [2022-04-18 19:03:51,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:51,676 INFO L478 AbstractCegarLoop]: Abstraction has 4175 states and 12303 transitions. [2022-04-18 19:03:51,677 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:51,677 INFO L276 IsEmpty]: Start isEmpty. Operand 4175 states and 12303 transitions. [2022-04-18 19:03:51,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 19:03:51,678 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:51,678 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:51,678 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 19:03:51,678 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-04-18 19:03:51,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:51,679 INFO L85 PathProgramCache]: Analyzing trace with hash 526889873, now seen corresponding path program 1 times [2022-04-18 19:03:51,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:51,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284468863] [2022-04-18 19:03:51,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:51,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:51,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:51,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:51,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284468863] [2022-04-18 19:03:51,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284468863] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:51,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:51,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:03:51,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762014593] [2022-04-18 19:03:51,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:51,703 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:03:51,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:51,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:03:51,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:03:51,704 INFO L87 Difference]: Start difference. First operand 4175 states and 12303 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:51,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:51,786 INFO L93 Difference]: Finished difference Result 4231 states and 12453 transitions. [2022-04-18 19:03:51,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:03:51,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-04-18 19:03:51,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:51,803 INFO L225 Difference]: With dead ends: 4231 [2022-04-18 19:03:51,803 INFO L226 Difference]: Without dead ends: 4231 [2022-04-18 19:03:51,803 INFO L912 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 [2022-04-18 19:03:51,804 INFO L913 BasicCegarLoop]: 46 mSDtfsCounter, 31 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:51,804 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 64 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:03:51,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4231 states. [2022-04-18 19:03:51,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4231 to 4231. [2022-04-18 19:03:51,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4231 states, 4191 states have (on average 2.9713672154617035) internal successors, (12453), 4230 states have internal predecessors, (12453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:51,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4231 states to 4231 states and 12453 transitions. [2022-04-18 19:03:51,937 INFO L78 Accepts]: Start accepts. Automaton has 4231 states and 12453 transitions. Word has length 9 [2022-04-18 19:03:51,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:51,937 INFO L478 AbstractCegarLoop]: Abstraction has 4231 states and 12453 transitions. [2022-04-18 19:03:51,937 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:51,937 INFO L276 IsEmpty]: Start isEmpty. Operand 4231 states and 12453 transitions. [2022-04-18 19:03:51,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 19:03:51,938 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:51,938 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:51,938 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 19:03:51,938 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-04-18 19:03:51,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:51,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1080726885, now seen corresponding path program 1 times [2022-04-18 19:03:51,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:51,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892976265] [2022-04-18 19:03:51,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:51,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:51,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:51,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:51,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892976265] [2022-04-18 19:03:51,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892976265] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:51,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:51,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:03:51,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121284806] [2022-04-18 19:03:51,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:51,965 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:03:51,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:51,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:03:51,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:03:51,965 INFO L87 Difference]: Start difference. First operand 4231 states and 12453 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:52,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:52,014 INFO L93 Difference]: Finished difference Result 2957 states and 8523 transitions. [2022-04-18 19:03:52,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:03:52,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-04-18 19:03:52,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:52,023 INFO L225 Difference]: With dead ends: 2957 [2022-04-18 19:03:52,023 INFO L226 Difference]: Without dead ends: 2957 [2022-04-18 19:03:52,024 INFO L912 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 [2022-04-18 19:03:52,024 INFO L913 BasicCegarLoop]: 46 mSDtfsCounter, 33 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:52,024 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 81 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:03:52,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2022-04-18 19:03:52,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2557. [2022-04-18 19:03:52,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2530 states have (on average 2.9260869565217393) internal successors, (7403), 2556 states have internal predecessors, (7403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:52,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 7403 transitions. [2022-04-18 19:03:52,064 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 7403 transitions. Word has length 10 [2022-04-18 19:03:52,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:52,065 INFO L478 AbstractCegarLoop]: Abstraction has 2557 states and 7403 transitions. [2022-04-18 19:03:52,065 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:52,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 7403 transitions. [2022-04-18 19:03:52,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 19:03:52,066 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:52,066 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-04-18 19:03:52,066 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 19:03:52,066 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-04-18 19:03:52,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:52,067 INFO L85 PathProgramCache]: Analyzing trace with hash -2030191287, now seen corresponding path program 1 times [2022-04-18 19:03:52,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:52,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357913901] [2022-04-18 19:03:52,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:52,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:03:52,075 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:03:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:03:52,082 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:03:52,082 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:03:52,082 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2022-04-18 19:03:52,082 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2022-04-18 19:03:52,083 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2022-04-18 19:03:52,083 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2022-04-18 19:03:52,083 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2022-04-18 19:03:52,083 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2022-04-18 19:03:52,083 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2022-04-18 19:03:52,083 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2022-04-18 19:03:52,084 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2022-04-18 19:03:52,084 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2022-04-18 19:03:52,084 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2022-04-18 19:03:52,084 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2022-04-18 19:03:52,084 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2022-04-18 19:03:52,084 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2022-04-18 19:03:52,084 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2022-04-18 19:03:52,085 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2022-04-18 19:03:52,085 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2022-04-18 19:03:52,085 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2022-04-18 19:03:52,085 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2022-04-18 19:03:52,085 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2022-04-18 19:03:52,085 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2022-04-18 19:03:52,085 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2022-04-18 19:03:52,086 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2022-04-18 19:03:52,086 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2022-04-18 19:03:52,086 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2022-04-18 19:03:52,086 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2022-04-18 19:03:52,086 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2022-04-18 19:03:52,086 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2022-04-18 19:03:52,086 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2022-04-18 19:03:52,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2022-04-18 19:03:52,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2022-04-18 19:03:52,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2022-04-18 19:03:52,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2022-04-18 19:03:52,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2022-04-18 19:03:52,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2022-04-18 19:03:52,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2022-04-18 19:03:52,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2022-04-18 19:03:52,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2022-04-18 19:03:52,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2022-04-18 19:03:52,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2022-04-18 19:03:52,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2022-04-18 19:03:52,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2022-04-18 19:03:52,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2022-04-18 19:03:52,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2022-04-18 19:03:52,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2022-04-18 19:03:52,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2022-04-18 19:03:52,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2022-04-18 19:03:52,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2022-04-18 19:03:52,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2022-04-18 19:03:52,090 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 19:03:52,090 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-04-18 19:03:52,090 WARN L232 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:03:52,090 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-04-18 19:03:52,111 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:03:52,112 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:03:52,112 INFO L340 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 [2022-04-18 19:03:52,112 INFO L341 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2022-04-18 19:03:52,114 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:03:52,114 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 312 places, 333 transitions, 687 flow [2022-04-18 19:03:52,114 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 312 places, 333 transitions, 687 flow [2022-04-18 19:03:52,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 312 places, 333 transitions, 687 flow [2022-04-18 19:03:52,180 INFO L129 PetriNetUnfolder]: 31/370 cut-off events. [2022-04-18 19:03:52,180 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 19:03:52,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 370 events. 31/370 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1425 event pairs, 0 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 313. Up to 8 conditions per place. [2022-04-18 19:03:52,203 INFO L116 LiptonReduction]: Number of co-enabled transitions 69000 [2022-04-18 19:03:57,687 INFO L131 LiptonReduction]: Checked pairs total: 243817 [2022-04-18 19:03:57,687 INFO L133 LiptonReduction]: Total number of compositions: 397 [2022-04-18 19:03:57,688 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 132 places, 140 transitions, 301 flow [2022-04-18 19:04:06,996 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 382366 states, 372231 states have (on average 4.227364190516104) internal successors, (1573556), 382365 states have internal predecessors, (1573556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:07,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 382366 states, 372231 states have (on average 4.227364190516104) internal successors, (1573556), 382365 states have internal predecessors, (1573556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:07,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-04-18 19:04:07,600 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:07,600 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-04-18 19:04:07,600 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 19:04:07,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:07,602 INFO L85 PathProgramCache]: Analyzing trace with hash 67390375, now seen corresponding path program 1 times [2022-04-18 19:04:07,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:07,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673996010] [2022-04-18 19:04:07,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:07,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:07,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:07,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:07,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673996010] [2022-04-18 19:04:07,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673996010] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:07,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:07,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:04:07,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792975943] [2022-04-18 19:04:07,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:07,617 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:04:07,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:07,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:04:07,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:04:08,189 INFO L87 Difference]: Start difference. First operand has 382366 states, 372231 states have (on average 4.227364190516104) internal successors, (1573556), 382365 states have internal predecessors, (1573556), 0 states have call successors, (0), 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 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:10,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:10,946 INFO L93 Difference]: Finished difference Result 134078 states and 533266 transitions. [2022-04-18 19:04:10,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:04:10,947 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2022-04-18 19:04:10,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:12,037 INFO L225 Difference]: With dead ends: 134078 [2022-04-18 19:04:12,037 INFO L226 Difference]: Without dead ends: 134078 [2022-04-18 19:04:12,038 INFO L912 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 [2022-04-18 19:04:12,038 INFO L913 BasicCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:12,039 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:04:12,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134078 states. [2022-04-18 19:04:16,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134078 to 134078. [2022-04-18 19:04:16,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134078 states, 133735 states have (on average 3.987482708341122) internal successors, (533266), 134077 states have internal predecessors, (533266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:17,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134078 states to 134078 states and 533266 transitions. [2022-04-18 19:04:17,996 INFO L78 Accepts]: Start accepts. Automaton has 134078 states and 533266 transitions. Word has length 4 [2022-04-18 19:04:17,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:18,009 INFO L478 AbstractCegarLoop]: Abstraction has 134078 states and 533266 transitions. [2022-04-18 19:04:18,009 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:18,009 INFO L276 IsEmpty]: Start isEmpty. Operand 134078 states and 533266 transitions. [2022-04-18 19:04:18,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:04:18,010 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:18,010 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-04-18 19:04:18,011 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 19:04:18,011 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 19:04:18,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:18,012 INFO L85 PathProgramCache]: Analyzing trace with hash 337692423, now seen corresponding path program 1 times [2022-04-18 19:04:18,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:18,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254393123] [2022-04-18 19:04:18,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:18,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:18,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:18,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:18,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254393123] [2022-04-18 19:04:18,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254393123] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:18,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:18,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:04:18,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519930753] [2022-04-18 19:04:18,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:18,034 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:04:18,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:18,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:04:18,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:04:18,035 INFO L87 Difference]: Start difference. First operand 134078 states and 533266 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:19,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:19,835 INFO L93 Difference]: Finished difference Result 195059 states and 769875 transitions. [2022-04-18 19:04:19,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:04:19,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-04-18 19:04:19,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:21,234 INFO L225 Difference]: With dead ends: 195059 [2022-04-18 19:04:21,234 INFO L226 Difference]: Without dead ends: 195059 [2022-04-18 19:04:21,241 INFO L912 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 [2022-04-18 19:04:21,246 INFO L913 BasicCegarLoop]: 57 mSDtfsCounter, 92 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:21,246 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 90 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:04:22,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195059 states. [2022-04-18 19:04:26,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195059 to 131975. [2022-04-18 19:04:26,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131975 states, 131693 states have (on average 4.06192432399596) internal successors, (534927), 131974 states have internal predecessors, (534927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:27,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131975 states to 131975 states and 534927 transitions. [2022-04-18 19:04:27,861 INFO L78 Accepts]: Start accepts. Automaton has 131975 states and 534927 transitions. Word has length 6 [2022-04-18 19:04:27,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:27,861 INFO L478 AbstractCegarLoop]: Abstraction has 131975 states and 534927 transitions. [2022-04-18 19:04:27,861 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:27,861 INFO L276 IsEmpty]: Start isEmpty. Operand 131975 states and 534927 transitions. [2022-04-18 19:04:27,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 19:04:27,890 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:27,890 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:27,891 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 19:04:27,891 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 19:04:27,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:27,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1396995424, now seen corresponding path program 1 times [2022-04-18 19:04:27,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:27,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183609648] [2022-04-18 19:04:27,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:27,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:27,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:27,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:27,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183609648] [2022-04-18 19:04:27,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183609648] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:27,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:27,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:04:27,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536716566] [2022-04-18 19:04:27,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:27,918 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:04:27,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:27,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:04:27,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:04:27,919 INFO L87 Difference]: Start difference. First operand 131975 states and 534927 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:29,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:29,578 INFO L93 Difference]: Finished difference Result 135439 states and 548431 transitions. [2022-04-18 19:04:29,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:04:29,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-04-18 19:04:29,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:30,327 INFO L225 Difference]: With dead ends: 135439 [2022-04-18 19:04:30,328 INFO L226 Difference]: Without dead ends: 135439 [2022-04-18 19:04:30,328 INFO L912 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 [2022-04-18 19:04:30,329 INFO L913 BasicCegarLoop]: 65 mSDtfsCounter, 60 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:30,329 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 88 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:04:30,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135439 states. [2022-04-18 19:04:34,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135439 to 135439. [2022-04-18 19:04:34,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135439 states, 135157 states have (on average 4.057732858823442) internal successors, (548431), 135438 states have internal predecessors, (548431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:35,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135439 states to 135439 states and 548431 transitions. [2022-04-18 19:04:35,730 INFO L78 Accepts]: Start accepts. Automaton has 135439 states and 548431 transitions. Word has length 9 [2022-04-18 19:04:35,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:35,730 INFO L478 AbstractCegarLoop]: Abstraction has 135439 states and 548431 transitions. [2022-04-18 19:04:35,731 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:35,731 INFO L276 IsEmpty]: Start isEmpty. Operand 135439 states and 548431 transitions. [2022-04-18 19:04:35,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-18 19:04:35,732 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:35,732 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:35,732 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 19:04:35,732 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-04-18 19:04:35,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:35,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2008343605, now seen corresponding path program 1 times [2022-04-18 19:04:35,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:35,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186008179] [2022-04-18 19:04:35,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:35,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:35,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:35,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:35,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186008179] [2022-04-18 19:04:35,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186008179] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:35,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:35,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:04:35,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851543178] [2022-04-18 19:04:35,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:35,746 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:04:35,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:35,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:04:35,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:04:35,746 INFO L87 Difference]: Start difference. First operand 135439 states and 548431 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)