./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix036.oepc.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/mix036.oepc.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 e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:35:17,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:35:17,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:35:17,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:35:17,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:35:17,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:35:17,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:35:17,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:35:17,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:35:17,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:35:17,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:35:17,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:35:17,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:35:17,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:35:17,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:35:17,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:35:17,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:35:17,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:35:17,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:35:17,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:35:17,383 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:35:17,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:35:17,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:35:17,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:35:17,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:35:17,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:35:17,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:35:17,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:35:17,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:35:17,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:35:17,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:35:17,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:35:17,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:35:17,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:35:17,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:35:17,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:35:17,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:35:17,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:35:17,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:35:17,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:35:17,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:35:17,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:35:17,402 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 19:35:17,421 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:35:17,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:35:17,422 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:35:17,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:35:17,422 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:35:17,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:35:17,423 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:35:17,423 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:35:17,423 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:35:17,424 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 19:35:17,424 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:35:17,424 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:35:17,424 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 19:35:17,424 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 19:35:17,424 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:35:17,425 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 19:35:17,425 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 19:35:17,425 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 19:35:17,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:35:17,426 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:35:17,426 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:35:17,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 19:35:17,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:35:17,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:35:17,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:35:17,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:35:17,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:35:17,427 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:35:17,427 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:35:17,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:35:17,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:35:17,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:35:17,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:35:17,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:35:17,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:35:17,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:35:17,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:35:17,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:35:17,429 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 19:35:17,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 19:35:17,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:35:17,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:35:17,429 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:35:17,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 [2022-04-18 19:35:17,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:35:17,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:35:17,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:35:17,648 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:35:17,648 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:35:17,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix036.oepc.i [2022-04-18 19:35:17,698 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/52724adac/8f636eb698c2436987e1e0846f5e2098/FLAGc3f22ace7 [2022-04-18 19:35:18,112 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:35:18,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix036.oepc.i [2022-04-18 19:35:18,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/52724adac/8f636eb698c2436987e1e0846f5e2098/FLAGc3f22ace7 [2022-04-18 19:35:18,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/52724adac/8f636eb698c2436987e1e0846f5e2098 [2022-04-18 19:35:18,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:35:18,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:35:18,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:35:18,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:35:18,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:35:18,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:35:18" (1/1) ... [2022-04-18 19:35:18,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38eac172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:35:18, skipping insertion in model container [2022-04-18 19:35:18,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:35:18" (1/1) ... [2022-04-18 19:35:18,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:35:18,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:35:18,336 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/mix036.oepc.i[945,958] [2022-04-18 19:35:18,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:35:18,534 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:35:18,542 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/mix036.oepc.i[945,958] [2022-04-18 19:35:18,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:35:18,600 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:35:18,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:35:18 WrapperNode [2022-04-18 19:35:18,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:35:18,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:35:18,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:35:18,602 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:35:18,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:35:18" (1/1) ... [2022-04-18 19:35:18,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:35:18" (1/1) ... [2022-04-18 19:35:18,672 INFO L137 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 521 [2022-04-18 19:35:18,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:35:18,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:35:18,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:35:18,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:35:18,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:35:18" (1/1) ... [2022-04-18 19:35:18,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:35:18" (1/1) ... [2022-04-18 19:35:18,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:35:18" (1/1) ... [2022-04-18 19:35:18,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:35:18" (1/1) ... [2022-04-18 19:35:18,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:35:18" (1/1) ... [2022-04-18 19:35:18,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:35:18" (1/1) ... [2022-04-18 19:35:18,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:35:18" (1/1) ... [2022-04-18 19:35:18,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:35:18,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:35:18,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:35:18,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:35:18,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:35:18" (1/1) ... [2022-04-18 19:35:18,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:35:18,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:35:18,774 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 19:35:18,776 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 19:35:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 19:35:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 19:35:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:35:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:35:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:35:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-04-18 19:35:18,804 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-04-18 19:35:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-04-18 19:35:18,805 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-04-18 19:35:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-04-18 19:35:18,805 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-04-18 19:35:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-04-18 19:35:18,805 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-04-18 19:35:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 19:35:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 19:35:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:35:18,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:35:18,807 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 19:35:19,007 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:35:19,008 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:35:20,064 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:35:36,628 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:35:36,628 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 19:35:36,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:35:36 BoogieIcfgContainer [2022-04-18 19:35:36,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:35:36,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:35:36,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:35:36,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:35:36,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:35:18" (1/3) ... [2022-04-18 19:35:36,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@745e0b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:35:36, skipping insertion in model container [2022-04-18 19:35:36,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:35:18" (2/3) ... [2022-04-18 19:35:36,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@745e0b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:35:36, skipping insertion in model container [2022-04-18 19:35:36,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:35:36" (3/3) ... [2022-04-18 19:35:36,636 INFO L111 eAbstractionObserver]: Analyzing ICFG mix036.oepc.i [2022-04-18 19:35:36,639 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:35:36,640 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:35:36,640 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 285 error locations. [2022-04-18 19:35:36,640 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:35:40,812 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:35:40,843 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:35:40,847 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 19:35:40,847 INFO L341 AbstractCegarLoop]: Starting to check reachability of 536 error locations. [2022-04-18 19:35:40,859 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:35:40,867 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 439 places, 428 transitions, 876 flow [2022-04-18 19:35:40,869 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 439 places, 428 transitions, 876 flow [2022-04-18 19:35:40,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 439 places, 428 transitions, 876 flow [2022-04-18 19:35:41,038 INFO L129 PetriNetUnfolder]: 2/424 cut-off events. [2022-04-18 19:35:41,039 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:35:41,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 424 events. 2/424 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2447 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 380. Up to 2 conditions per place. [2022-04-18 19:35:41,076 INFO L116 LiptonReduction]: Number of co-enabled transitions 97064 [2022-04-18 19:37:02,622 WARN L232 SmtUtils]: Spent 33.03s on a formula simplification. DAG size of input: 5679 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:37:08,687 WARN L232 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 2297 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:37:14,222 WARN L232 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 2297 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:37:23,812 WARN L232 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 2300 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:37:57,874 WARN L232 SmtUtils]: Spent 33.76s on a formula simplification. DAG size of input: 5682 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:38:09,659 WARN L232 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 2304 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:38:29,772 WARN L232 SmtUtils]: Spent 7.39s on a formula simplification. DAG size of input: 3351 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:38:41,079 WARN L232 SmtUtils]: Spent 11.30s on a formula simplification. DAG size of input: 3866 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:38:46,782 WARN L232 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 2308 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:38:52,265 WARN L232 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 2304 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:39:29,397 WARN L232 SmtUtils]: Spent 19.63s on a formula simplification. DAG size of input: 4840 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:39:53,407 WARN L232 SmtUtils]: Spent 24.00s on a formula simplification. DAG size of input: 5521 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:39:58,789 WARN L232 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 2297 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:40:24,101 WARN L232 SmtUtils]: Spent 25.22s on a formula simplification. DAG size of input: 5051 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:40:29,628 WARN L232 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 2394 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:40:54,699 WARN L232 SmtUtils]: Spent 11.10s on a formula simplification. DAG size of input: 3529 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:41:23,431 WARN L232 SmtUtils]: Spent 23.39s on a formula simplification. DAG size of input: 5529 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:41:28,904 WARN L232 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 2308 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:41:34,169 WARN L232 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 2308 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:41:54,243 WARN L232 SmtUtils]: Spent 10.80s on a formula simplification. DAG size of input: 3324 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:42:05,399 WARN L232 SmtUtils]: Spent 11.15s on a formula simplification. DAG size of input: 3834 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:42:11,355 WARN L232 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 2367 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:42:16,942 WARN L232 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 2303 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:42:36,442 WARN L232 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 2670 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:43:10,817 WARN L232 SmtUtils]: Spent 34.18s on a formula simplification. DAG size of input: 5679 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:43:36,140 WARN L232 SmtUtils]: Spent 25.23s on a formula simplification. DAG size of input: 5027 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:43:42,560 WARN L232 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 2297 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:44:02,945 WARN L232 SmtUtils]: Spent 20.29s on a formula simplification. DAG size of input: 5531 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:44:15,826 WARN L232 SmtUtils]: Spent 12.55s on a formula simplification. DAG size of input: 3533 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)