./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix053.opt.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/mix053.opt.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 998817f829569afa1d1e3eda89c2594d280c8ae81957c207a6b68804966cf3a6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:46:56,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:46:56,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:46:56,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:46:56,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:46:56,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:46:56,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:46:56,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:46:56,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:46:56,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:46:56,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:46:56,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:46:56,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:46:56,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:46:56,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:46:56,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:46:56,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:46:56,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:46:56,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:46:56,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:46:56,496 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:46:56,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:46:56,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:46:56,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:46:56,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:46:56,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:46:56,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:46:56,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:46:56,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:46:56,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:46:56,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:46:56,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:46:56,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:46:56,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:46:56,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:46:56,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:46:56,512 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:46:56,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:46:56,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:46:56,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:46:56,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:46:56,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:46:56,515 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 19:46:56,529 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:46:56,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:46:56,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:46:56,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:46:56,530 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:46:56,530 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:46:56,531 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:46:56,531 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:46:56,531 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:46:56,531 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 19:46:56,531 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:46:56,531 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:46:56,531 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 19:46:56,532 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 19:46:56,532 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:46:56,532 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 19:46:56,532 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 19:46:56,532 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 19:46:56,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:46:56,533 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:46:56,533 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:46:56,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 19:46:56,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:46:56,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:46:56,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:46:56,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:46:56,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:46:56,534 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:46:56,534 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:46:56,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:46:56,534 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:46:56,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:46:56,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:46:56,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:46:56,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:46:56,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:46:56,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:46:56,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:46:56,535 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 19:46:56,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 19:46:56,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:46:56,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:46:56,536 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:46:56,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 998817f829569afa1d1e3eda89c2594d280c8ae81957c207a6b68804966cf3a6 [2022-04-18 19:46:56,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:46:56,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:46:56,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:46:56,739 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:46:56,740 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:46:56,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix053.opt.i [2022-04-18 19:46:56,791 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/89771a813/ea32006d29f74d8781f52d456dabcec0/FLAGc2648872a [2022-04-18 19:46:57,247 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:46:57,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix053.opt.i [2022-04-18 19:46:57,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/89771a813/ea32006d29f74d8781f52d456dabcec0/FLAGc2648872a [2022-04-18 19:46:57,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/89771a813/ea32006d29f74d8781f52d456dabcec0 [2022-04-18 19:46:57,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:46:57,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:46:57,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:46:57,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:46:57,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:46:57,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:46:57" (1/1) ... [2022-04-18 19:46:57,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6348ed82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:46:57, skipping insertion in model container [2022-04-18 19:46:57,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:46:57" (1/1) ... [2022-04-18 19:46:57,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:46:57,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:46:57,499 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/mix053.opt.i[944,957] [2022-04-18 19:46:57,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:46:57,688 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:46:57,700 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/mix053.opt.i[944,957] [2022-04-18 19:46:57,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:46:57,771 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:46:57,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:46:57 WrapperNode [2022-04-18 19:46:57,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:46:57,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:46:57,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:46:57,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:46:57,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:46:57" (1/1) ... [2022-04-18 19:46:57,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:46:57" (1/1) ... [2022-04-18 19:46:57,850 INFO L137 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 511 [2022-04-18 19:46:57,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:46:57,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:46:57,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:46:57,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:46:57,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:46:57" (1/1) ... [2022-04-18 19:46:57,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:46:57" (1/1) ... [2022-04-18 19:46:57,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:46:57" (1/1) ... [2022-04-18 19:46:57,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:46:57" (1/1) ... [2022-04-18 19:46:57,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:46:57" (1/1) ... [2022-04-18 19:46:57,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:46:57" (1/1) ... [2022-04-18 19:46:57,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:46:57" (1/1) ... [2022-04-18 19:46:57,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:46:57,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:46:57,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:46:57,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:46:57,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:46:57" (1/1) ... [2022-04-18 19:46:57,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:46:57,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:46:57,938 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 19:46:57,959 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 19:46:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 19:46:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 19:46:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:46:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:46:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:46:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-04-18 19:46:57,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-04-18 19:46:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-04-18 19:46:57,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-04-18 19:46:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-04-18 19:46:57,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-04-18 19:46:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-04-18 19:46:57,972 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-04-18 19:46:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 19:46:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 19:46:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:46:57,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:46:57,974 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 19:46:58,151 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:46:58,152 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:46:58,926 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:48:44,185 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:48:44,185 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 19:48:44,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:48:44 BoogieIcfgContainer [2022-04-18 19:48:44,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:48:44,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:48:44,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:48:44,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:48:44,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:46:57" (1/3) ... [2022-04-18 19:48:44,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576184a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:48:44, skipping insertion in model container [2022-04-18 19:48:44,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:46:57" (2/3) ... [2022-04-18 19:48:44,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576184a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:48:44, skipping insertion in model container [2022-04-18 19:48:44,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:48:44" (3/3) ... [2022-04-18 19:48:44,192 INFO L111 eAbstractionObserver]: Analyzing ICFG mix053.opt.i [2022-04-18 19:48:44,195 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:48:44,195 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:48:44,196 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 195 error locations. [2022-04-18 19:48:44,196 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:48:53,643 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:48:53,670 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:48:53,674 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 19:48:53,675 INFO L341 AbstractCegarLoop]: Starting to check reachability of 357 error locations. [2022-04-18 19:48:53,689 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:48:53,699 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 340 places, 329 transitions, 678 flow [2022-04-18 19:48:53,703 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 340 places, 329 transitions, 678 flow [2022-04-18 19:48:53,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 340 places, 329 transitions, 678 flow [2022-04-18 19:48:53,988 INFO L129 PetriNetUnfolder]: 2/325 cut-off events. [2022-04-18 19:48:53,989 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:48:53,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 325 events. 2/325 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 1716 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 285. Up to 2 conditions per place. [2022-04-18 19:48:54,015 INFO L116 LiptonReduction]: Number of co-enabled transitions 48520 [2022-04-18 19:53:39,920 WARN L232 SmtUtils]: Spent 2.23m on a formula simplification. DAG size of input: 11814 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:54:52,895 WARN L232 SmtUtils]: Spent 1.21m on a formula simplification. DAG size of input: 10826 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:56:23,892 WARN L232 SmtUtils]: Spent 1.52m on a formula simplification. DAG size of input: 10815 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:58:41,138 WARN L232 SmtUtils]: Spent 1.66m on a formula simplification. DAG size of input: 11058 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Killed by 15