./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c --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/weaver/parallel-parallel-sum-2.wvr.c -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 c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:19:14,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:19:14,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:19:14,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:19:14,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:19:14,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:19:14,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:19:14,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:19:14,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:19:14,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:19:14,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:19:14,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:19:14,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:19:14,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:19:14,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:19:14,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:19:14,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:19:14,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:19:14,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:19:14,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:19:14,380 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:19:14,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:19:14,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:19:14,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:19:14,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:19:14,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:19:14,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:19:14,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:19:14,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:19:14,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:19:14,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:19:14,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:19:14,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:19:14,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:19:14,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:19:14,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:19:14,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:19:14,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:19:14,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:19:14,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:19:14,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:19:14,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:19:14,396 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:19:14,415 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:19:14,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:19:14,416 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:19:14,416 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:19:14,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:19:14,417 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:19:14,417 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:19:14,417 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:19:14,418 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:19:14,418 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:19:14,418 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:19:14,419 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:19:14,419 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:19:14,419 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:19:14,419 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:19:14,419 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:19:14,419 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:19:14,420 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:19:14,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:19:14,421 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:19:14,422 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:19:14,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:19:14,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:19:14,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:19:14,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:19:14,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:19:14,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:19:14,423 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:19:14,423 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:19:14,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:19:14,423 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:19:14,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:19:14,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:19:14,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:19:14,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:19:14,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:19:14,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:19:14,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:19:14,424 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:19:14,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:19:14,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:19:14,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:19:14,425 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:19:14,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 [2022-04-18 20:19:14,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:19:14,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:19:14,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:19:14,656 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:19:14,657 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:19:14,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c [2022-04-18 20:19:14,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4c48b5dd9/c6f3245de6d64a688103e7b44f67e801/FLAG178fcade5 [2022-04-18 20:19:15,071 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:19:15,073 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c [2022-04-18 20:19:15,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4c48b5dd9/c6f3245de6d64a688103e7b44f67e801/FLAG178fcade5 [2022-04-18 20:19:15,485 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4c48b5dd9/c6f3245de6d64a688103e7b44f67e801 [2022-04-18 20:19:15,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:19:15,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:19:15,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:19:15,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:19:15,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:19:15,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:19:15" (1/1) ... [2022-04-18 20:19:15,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1775575f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:19:15, skipping insertion in model container [2022-04-18 20:19:15,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:19:15" (1/1) ... [2022-04-18 20:19:15,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:19:15,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:19:15,703 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-04-18 20:19:15,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:19:15,719 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:19:15,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-04-18 20:19:15,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:19:15,773 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:19:15,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:19:15 WrapperNode [2022-04-18 20:19:15,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:19:15,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:19:15,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:19:15,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:19:15,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:19:15" (1/1) ... [2022-04-18 20:19:15,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:19:15" (1/1) ... [2022-04-18 20:19:15,819 INFO L137 Inliner]: procedures = 29, calls = 88, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 673 [2022-04-18 20:19:15,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:19:15,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:19:15,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:19:15,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:19:15,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:19:15" (1/1) ... [2022-04-18 20:19:15,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:19:15" (1/1) ... [2022-04-18 20:19:15,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:19:15" (1/1) ... [2022-04-18 20:19:15,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:19:15" (1/1) ... [2022-04-18 20:19:15,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:19:15" (1/1) ... [2022-04-18 20:19:15,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:19:15" (1/1) ... [2022-04-18 20:19:15,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:19:15" (1/1) ... [2022-04-18 20:19:15,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:19:15,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:19:15,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:19:15,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:19:15,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:19:15" (1/1) ... [2022-04-18 20:19:15,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:19:15,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:19:15,889 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 20:19:15,910 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 20:19:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:19:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:19:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:19:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:19:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 20:19:15,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 20:19:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 20:19:15,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 20:19:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 20:19:15,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 20:19:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-04-18 20:19:15,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-04-18 20:19:15,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:19:15,941 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-04-18 20:19:15,941 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-04-18 20:19:15,941 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-04-18 20:19:15,941 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-04-18 20:19:15,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 20:19:15,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 20:19:15,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 20:19:15,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:19:15,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:19:15,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:19:15,943 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 20:19:16,031 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:19:16,033 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:19:16,643 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:19:16,796 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:19:16,796 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-04-18 20:19:16,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:19:16 BoogieIcfgContainer [2022-04-18 20:19:16,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:19:16,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:19:16,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:19:16,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:19:16,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:19:15" (1/3) ... [2022-04-18 20:19:16,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad8f974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:19:16, skipping insertion in model container [2022-04-18 20:19:16,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:19:15" (2/3) ... [2022-04-18 20:19:16,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad8f974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:19:16, skipping insertion in model container [2022-04-18 20:19:16,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:19:16" (3/3) ... [2022-04-18 20:19:16,805 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2022-04-18 20:19:16,812 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:19:16,812 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:19:16,812 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 89 error locations. [2022-04-18 20:19:16,812 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:19:16,903 INFO L135 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-04-18 20:19:16,935 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:19:16,940 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 20:19:16,940 INFO L341 AbstractCegarLoop]: Starting to check reachability of 157 error locations. [2022-04-18 20:19:16,958 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:19:16,967 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 572 places, 581 transitions, 1234 flow [2022-04-18 20:19:16,969 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 572 places, 581 transitions, 1234 flow [2022-04-18 20:19:16,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 572 places, 581 transitions, 1234 flow [2022-04-18 20:19:17,122 INFO L129 PetriNetUnfolder]: 26/505 cut-off events. [2022-04-18 20:19:17,122 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 20:19:17,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 505 events. 26/505 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 875 event pairs, 0 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 428. Up to 3 conditions per place. [2022-04-18 20:19:17,146 INFO L116 LiptonReduction]: Number of co-enabled transitions 29996 [2022-04-18 20:19:34,462 INFO L131 LiptonReduction]: Checked pairs total: 189783 [2022-04-18 20:19:34,463 INFO L133 LiptonReduction]: Total number of compositions: 676 [2022-04-18 20:19:34,469 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 220 places, 210 transitions, 492 flow