./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.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-wmm/safe010_tso.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 0cdc4de0b080284406e5a223cc9cce4b369430ad26c4d0f5d169e90b4fc0e513 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:02:25,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:02:25,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:02:25,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:02:25,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:02:25,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:02:25,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:02:25,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:02:25,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:02:25,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:02:25,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:02:25,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:02:25,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:02:25,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:02:25,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:02:25,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:02:25,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:02:25,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:02:25,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:02:25,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:02:25,321 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:02:25,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:02:25,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:02:25,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:02:25,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:02:25,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:02:25,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:02:25,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:02:25,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:02:25,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:02:25,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:02:25,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:02:25,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:02:25,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:02:25,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:02:25,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:02:25,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:02:25,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:02:25,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:02:25,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:02:25,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:02:25,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:02:25,339 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:02:25,369 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:02:25,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:02:25,370 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:02:25,370 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:02:25,371 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:02:25,371 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:02:25,371 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:02:25,371 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:02:25,371 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:02:25,372 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:02:25,372 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:02:25,372 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:02:25,373 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:02:25,373 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:02:25,373 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:02:25,373 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:02:25,373 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:02:25,373 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:02:25,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:02:25,374 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:02:25,375 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:02:25,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:02:25,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:02:25,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:02:25,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:02:25,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:02:25,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:02:25,376 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:02:25,376 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:02:25,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:02:25,376 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:02:25,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:02:25,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:02:25,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:02:25,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:02:25,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:02:25,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:02:25,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:02:25,377 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:02:25,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:02:25,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:02:25,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:02:25,378 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:02:25,378 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cdc4de0b080284406e5a223cc9cce4b369430ad26c4d0f5d169e90b4fc0e513 [2022-04-18 20:02:25,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:02:25,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:02:25,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:02:25,597 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:02:25,598 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:02:25,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.i [2022-04-18 20:02:25,663 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cb6333cc1/1422994cfedc490daf6e46587fdee8d5/FLAG05ded8314 [2022-04-18 20:02:26,067 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:02:26,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.i [2022-04-18 20:02:26,079 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cb6333cc1/1422994cfedc490daf6e46587fdee8d5/FLAG05ded8314 [2022-04-18 20:02:26,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cb6333cc1/1422994cfedc490daf6e46587fdee8d5 [2022-04-18 20:02:26,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:02:26,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:02:26,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:02:26,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:02:26,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:02:26,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:02:26" (1/1) ... [2022-04-18 20:02:26,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5109cc2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:02:26, skipping insertion in model container [2022-04-18 20:02:26,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:02:26" (1/1) ... [2022-04-18 20:02:26,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:02:26,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:02:26,277 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-wmm/safe010_tso.i[945,958] [2022-04-18 20:02:26,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:02:26,417 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:02:26,426 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-wmm/safe010_tso.i[945,958] [2022-04-18 20:02:26,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:02:26,479 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:02:26,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:02:26 WrapperNode [2022-04-18 20:02:26,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:02:26,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:02:26,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:02:26,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:02:26,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:02:26" (1/1) ... [2022-04-18 20:02:26,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:02:26" (1/1) ... [2022-04-18 20:02:26,531 INFO L137 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 80 [2022-04-18 20:02:26,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:02:26,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:02:26,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:02:26,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:02:26,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:02:26" (1/1) ... [2022-04-18 20:02:26,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:02:26" (1/1) ... [2022-04-18 20:02:26,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:02:26" (1/1) ... [2022-04-18 20:02:26,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:02:26" (1/1) ... [2022-04-18 20:02:26,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:02:26" (1/1) ... [2022-04-18 20:02:26,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:02:26" (1/1) ... [2022-04-18 20:02:26,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:02:26" (1/1) ... [2022-04-18 20:02:26,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:02:26,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:02:26,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:02:26,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:02:26,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:02:26" (1/1) ... [2022-04-18 20:02:26,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:02:26,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:02:26,608 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 20:02:26,616 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 20:02:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:02:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 20:02:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:02:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:02:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:02:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-04-18 20:02:26,636 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-04-18 20:02:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-04-18 20:02:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-04-18 20:02:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:02:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 20:02:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:02:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:02:26,638 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 20:02:26,748 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:02:26,749 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:02:26,948 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:02:27,014 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:02:27,014 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 20:02:27,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:02:27 BoogieIcfgContainer [2022-04-18 20:02:27,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:02:27,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:02:27,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:02:27,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:02:27,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:02:26" (1/3) ... [2022-04-18 20:02:27,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ee73d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:02:27, skipping insertion in model container [2022-04-18 20:02:27,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:02:26" (2/3) ... [2022-04-18 20:02:27,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ee73d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:02:27, skipping insertion in model container [2022-04-18 20:02:27,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:02:27" (3/3) ... [2022-04-18 20:02:27,030 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.i [2022-04-18 20:02:27,033 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:02:27,034 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:02:27,034 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-04-18 20:02:27,034 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:02:27,096 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 20:02:27,131 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:02:27,136 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 20:02:27,136 INFO L341 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-04-18 20:02:27,147 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:02:27,156 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 93 transitions, 196 flow [2022-04-18 20:02:27,160 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 93 transitions, 196 flow [2022-04-18 20:02:27,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 93 transitions, 196 flow [2022-04-18 20:02:27,193 INFO L129 PetriNetUnfolder]: 2/91 cut-off events. [2022-04-18 20:02:27,194 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 20:02:27,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 91 events. 2/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 86 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-04-18 20:02:27,200 INFO L116 LiptonReduction]: Number of co-enabled transitions 2040 [2022-04-18 20:02:29,501 INFO L131 LiptonReduction]: Checked pairs total: 4384 [2022-04-18 20:02:29,502 INFO L133 LiptonReduction]: Total number of compositions: 107 [2022-04-18 20:02:29,507 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 30 transitions, 70 flow [2022-04-18 20:02:29,546 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 737 states, 495 states have (on average 3.933333333333333) internal successors, (1947), 736 states have internal predecessors, (1947), 0 states have call successors, (0), 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 20:02:29,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 737 states, 495 states have (on average 3.933333333333333) internal successors, (1947), 736 states have internal predecessors, (1947), 0 states have call successors, (0), 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 20:02:29,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-04-18 20:02:29,555 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:02:29,555 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1] [2022-04-18 20:02:29,556 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-04-18 20:02:29,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:02:29,559 INFO L85 PathProgramCache]: Analyzing trace with hash 466366, now seen corresponding path program 1 times [2022-04-18 20:02:29,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:02:29,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328410926] [2022-04-18 20:02:29,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:02:29,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:02:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:02:29,703 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 20:02:29,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:02:29,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328410926] [2022-04-18 20:02:29,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328410926] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:02:29,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:02:29,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 20:02:29,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413789145] [2022-04-18 20:02:29,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:02:29,710 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 20:02:29,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:02:29,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 20:02:29,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 20:02:29,730 INFO L87 Difference]: Start difference. First operand has 737 states, 495 states have (on average 3.933333333333333) internal successors, (1947), 736 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:02:29,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:02:29,760 INFO L93 Difference]: Finished difference Result 57 states and 117 transitions. [2022-04-18 20:02:29,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 20:02:29,762 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-04-18 20:02:29,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:02:29,765 INFO L225 Difference]: With dead ends: 57 [2022-04-18 20:02:29,765 INFO L226 Difference]: Without dead ends: 0 [2022-04-18 20:02:29,766 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 20:02:29,769 INFO L913 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:02:29,770 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 20:02:29,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-18 20:02:29,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-18 20:02:29,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 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 20:02:29,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-18 20:02:29,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2022-04-18 20:02:29,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:02:29,787 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-18 20:02:29,787 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:02:29,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-18 20:02:29,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-18 20:02:29,789 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2022-04-18 20:02:29,790 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2022-04-18 20:02:29,792 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2022-04-18 20:02:29,792 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2022-04-18 20:02:29,793 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2022-04-18 20:02:29,793 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2022-04-18 20:02:29,793 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2022-04-18 20:02:29,793 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2022-04-18 20:02:29,794 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2022-04-18 20:02:29,794 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2022-04-18 20:02:29,794 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2022-04-18 20:02:29,796 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2022-04-18 20:02:29,797 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2022-04-18 20:02:29,797 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2022-04-18 20:02:29,797 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2022-04-18 20:02:29,798 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2022-04-18 20:02:29,798 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 27 remaining) [2022-04-18 20:02:29,798 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 27 remaining) [2022-04-18 20:02:29,799 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2022-04-18 20:02:29,799 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2022-04-18 20:02:29,803 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P0Err2ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2022-04-18 20:02:29,803 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P0Err3ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2022-04-18 20:02:29,804 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2022-04-18 20:02:29,804 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2022-04-18 20:02:29,804 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P1Err2ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2022-04-18 20:02:29,804 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P1Err3ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2022-04-18 20:02:29,804 INFO L788 garLoopResultBuilder]: Registering result SAFE for location P1Err4ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2022-04-18 20:02:29,805 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 20:02:29,806 INFO L719 BasicCegarLoop]: Path program histogram: [1] [2022-04-18 20:02:29,810 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 20:02:29,810 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 20:02:29,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:02:29 BasicIcfg [2022-04-18 20:02:29,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 20:02:29,818 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 20:02:29,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 20:02:29,819 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 20:02:29,819 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:02:27" (3/4) ... [2022-04-18 20:02:29,821 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 20:02:29,825 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-04-18 20:02:29,825 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-04-18 20:02:29,830 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-04-18 20:02:29,830 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-04-18 20:02:29,830 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 20:02:29,830 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 20:02:29,862 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2022-04-18 20:02:29,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 20:02:29,864 INFO L158 Benchmark]: Toolchain (without parser) took 3773.97ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 61.6MB in the beginning and 36.5MB in the end (delta: 25.0MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2022-04-18 20:02:29,864 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory was 50.6MB in the beginning and 50.6MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 20:02:29,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.73ms. Allocated memory is still 96.5MB. Free memory was 61.4MB in the beginning and 61.5MB in the end (delta: -140.6kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-04-18 20:02:29,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.62ms. Allocated memory is still 96.5MB. Free memory was 61.2MB in the beginning and 59.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 20:02:29,865 INFO L158 Benchmark]: Boogie Preprocessor took 38.31ms. Allocated memory is still 96.5MB. Free memory was 59.4MB in the beginning and 58.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 20:02:29,865 INFO L158 Benchmark]: RCFGBuilder took 445.14ms. Allocated memory is still 96.5MB. Free memory was 58.1MB in the beginning and 40.2MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-04-18 20:02:29,865 INFO L158 Benchmark]: TraceAbstraction took 2793.22ms. Allocated memory is still 130.0MB. Free memory was 106.2MB in the beginning and 39.7MB in the end (delta: 66.6MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. [2022-04-18 20:02:29,865 INFO L158 Benchmark]: Witness Printer took 44.92ms. Allocated memory is still 130.0MB. Free memory was 39.7MB in the beginning and 36.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 20:02:29,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory was 50.6MB in the beginning and 50.6MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.73ms. Allocated memory is still 96.5MB. Free memory was 61.4MB in the beginning and 61.5MB in the end (delta: -140.6kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.62ms. Allocated memory is still 96.5MB. Free memory was 61.2MB in the beginning and 59.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.31ms. Allocated memory is still 96.5MB. Free memory was 59.4MB in the beginning and 58.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 445.14ms. Allocated memory is still 96.5MB. Free memory was 58.1MB in the beginning and 40.2MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2793.22ms. Allocated memory is still 130.0MB. Free memory was 106.2MB in the beginning and 39.7MB in the end (delta: 66.6MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. * Witness Printer took 44.92ms. Allocated memory is still 130.0MB. Free memory was 39.7MB in the beginning and 36.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 98 PlacesBefore, 37 PlacesAfterwards, 93 TransitionsBefore, 30 TransitionsAfterwards, 2040 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 107 TotalNumberOfCompositions, 4384 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3230, positive: 3153, positive conditional: 0, positive unconditional: 3153, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1719, positive: 1693, positive conditional: 0, positive unconditional: 1693, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1719, positive: 1522, positive conditional: 0, positive unconditional: 1522, negative: 197, negative conditional: 0, negative unconditional: 197, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 197, positive: 171, positive conditional: 0, positive unconditional: 171, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 172, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3230, positive: 1460, positive conditional: 0, positive unconditional: 1460, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 1719, unknown conditional: 0, unknown unconditional: 1719] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 80, Positive conditional cache size: 0, Positive unconditional cache size: 80, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 738]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 769]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 769]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 769]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 771]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 117 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=737occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 2 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 20:02:29,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE