./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_power.opt_pso.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/safe021_power.opt_pso.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 10a668ec1ea7995e15ba3bf7e664e16993ba1d6d90153ec7cf305acc426b53b6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:08:09,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:08:09,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:08:09,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:08:09,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:08:09,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:08:09,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:08:09,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:08:09,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:08:09,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:08:09,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:08:09,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:08:09,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:08:09,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:08:09,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:08:09,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:08:09,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:08:09,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:08:09,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:08:09,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:08:09,618 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:08:09,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:08:09,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:08:09,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:08:09,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:08:09,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:08:09,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:08:09,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:08:09,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:08:09,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:08:09,626 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:08:09,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:08:09,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:08:09,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:08:09,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:08:09,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:08:09,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:08:09,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:08:09,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:08:09,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:08:09,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:08:09,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:08:09,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:08:09,653 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:08:09,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:08:09,654 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:08:09,654 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:08:09,655 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:08:09,655 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:08:09,655 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:08:09,655 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:08:09,655 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:08:09,656 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:08:09,656 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:08:09,656 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:08:09,656 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:08:09,656 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:08:09,657 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:08:09,657 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:08:09,658 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:08:09,658 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:08:09,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:08:09,659 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:08:09,659 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:08:09,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:08:09,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:08:09,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:08:09,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:08:09,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:08:09,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:08:09,660 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:08:09,660 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:08:09,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:08:09,660 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:08:09,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:08:09,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:08:09,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:08:09,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:08:09,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:08:09,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:08:09,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:08:09,661 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:08:09,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:08:09,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:08:09,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:08:09,662 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:08:09,662 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10a668ec1ea7995e15ba3bf7e664e16993ba1d6d90153ec7cf305acc426b53b6 [2022-04-18 20:08:09,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:08:09,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:08:09,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:08:09,858 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:08:09,859 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:08:09,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_power.opt_pso.opt.i [2022-04-18 20:08:09,904 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9136aacb7/7adbf0e2041949e9b04a7c818bd5c638/FLAG3d0ee1a62 [2022-04-18 20:08:10,299 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:08:10,299 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_power.opt_pso.opt.i [2022-04-18 20:08:10,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9136aacb7/7adbf0e2041949e9b04a7c818bd5c638/FLAG3d0ee1a62 [2022-04-18 20:08:10,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9136aacb7/7adbf0e2041949e9b04a7c818bd5c638 [2022-04-18 20:08:10,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:08:10,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:08:10,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:08:10,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:08:10,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:08:10,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:08:10" (1/1) ... [2022-04-18 20:08:10,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b85b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:10, skipping insertion in model container [2022-04-18 20:08:10,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:08:10" (1/1) ... [2022-04-18 20:08:10,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:08:10,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:08:10,470 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/safe021_power.opt_pso.opt.i[959,972] [2022-04-18 20:08:10,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:08:10,608 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:08:10,616 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/safe021_power.opt_pso.opt.i[959,972] [2022-04-18 20:08:10,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:08:10,697 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:08:10,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:10 WrapperNode [2022-04-18 20:08:10,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:08:10,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:08:10,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:08:10,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:08:10,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:10" (1/1) ... [2022-04-18 20:08:10,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:10" (1/1) ... [2022-04-18 20:08:10,770 INFO L137 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 935 [2022-04-18 20:08:10,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:08:10,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:08:10,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:08:10,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:08:10,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:10" (1/1) ... [2022-04-18 20:08:10,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:10" (1/1) ... [2022-04-18 20:08:10,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:10" (1/1) ... [2022-04-18 20:08:10,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:10" (1/1) ... [2022-04-18 20:08:10,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:10" (1/1) ... [2022-04-18 20:08:10,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:10" (1/1) ... [2022-04-18 20:08:10,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:10" (1/1) ... [2022-04-18 20:08:10,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:08:10,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:08:10,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:08:10,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:08:10,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:10" (1/1) ... [2022-04-18 20:08:10,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:08:10,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:08:10,845 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 20:08:10,851 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 20:08:10,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:08:10,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 20:08:10,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:08:10,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:08:10,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:08:10,882 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-04-18 20:08:10,882 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-04-18 20:08:10,883 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-04-18 20:08:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-04-18 20:08:10,883 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-04-18 20:08:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-04-18 20:08:10,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:08:10,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 20:08:10,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:08:10,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:08:10,885 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 20:08:11,004 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:08:11,006 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:08:11,845 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:08:44,533 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:08:44,533 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 20:08:44,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:08:44 BoogieIcfgContainer [2022-04-18 20:08:44,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:08:44,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:08:44,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:08:44,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:08:44,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:08:10" (1/3) ... [2022-04-18 20:08:44,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791dd1ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:08:44, skipping insertion in model container [2022-04-18 20:08:44,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:08:10" (2/3) ... [2022-04-18 20:08:44,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791dd1ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:08:44, skipping insertion in model container [2022-04-18 20:08:44,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:08:44" (3/3) ... [2022-04-18 20:08:44,549 INFO L111 eAbstractionObserver]: Analyzing ICFG safe021_power.opt_pso.opt.i [2022-04-18 20:08:44,552 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:08:44,552 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:08:44,553 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 244 error locations. [2022-04-18 20:08:44,553 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:08:47,177 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 20:08:47,219 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:08:47,223 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 20:08:47,223 INFO L341 AbstractCegarLoop]: Starting to check reachability of 361 error locations. [2022-04-18 20:08:47,242 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:08:47,249 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 369 places, 361 transitions, 737 flow [2022-04-18 20:08:47,251 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 369 places, 361 transitions, 737 flow [2022-04-18 20:08:47,252 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 369 places, 361 transitions, 737 flow [2022-04-18 20:08:47,604 INFO L129 PetriNetUnfolder]: 2/358 cut-off events. [2022-04-18 20:08:47,604 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 20:08:47,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 358 events. 2/358 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2126 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 319. Up to 2 conditions per place. [2022-04-18 20:08:47,630 INFO L116 LiptonReduction]: Number of co-enabled transitions 58680 [2022-04-18 20:12:28,781 WARN L232 SmtUtils]: Spent 1.94m on a formula simplification. DAG size of input: 9314 DAG size of output: 1029 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:15:01,637 WARN L232 SmtUtils]: Spent 2.50m on a formula simplification. DAG size of input: 10384 DAG size of output: 1347 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:15:11,978 WARN L232 SmtUtils]: Spent 10.32s on a formula simplification. DAG size of input: 1274 DAG size of output: 1270 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:15:19,935 WARN L232 SmtUtils]: Spent 7.77s on a formula simplification. DAG size of input: 3328 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:15:38,956 WARN L232 SmtUtils]: Spent 18.95s on a formula simplification. DAG size of input: 4061 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:15:54,446 WARN L232 SmtUtils]: Spent 15.28s on a formula simplification. DAG size of input: 3328 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:17:08,632 WARN L232 SmtUtils]: Spent 58.92s on a formula simplification. DAG size of input: 6467 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:17:46,019 WARN L232 SmtUtils]: Spent 37.37s on a formula simplification. DAG size of input: 7325 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:18:26,623 WARN L232 SmtUtils]: Spent 24.92s on a formula simplification. DAG size of input: 6549 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:19:18,407 WARN L232 SmtUtils]: Spent 51.77s on a formula simplification. DAG size of input: 7423 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:19:31,041 WARN L232 SmtUtils]: Spent 12.46s on a formula simplification. DAG size of input: 3384 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:19:50,983 WARN L232 SmtUtils]: Spent 13.09s on a formula simplification. DAG size of input: 4315 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:20:24,495 WARN L232 SmtUtils]: Spent 33.50s on a formula simplification. DAG size of input: 4940 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:20:34,370 WARN L232 SmtUtils]: Spent 7.30s on a formula simplification. DAG size of input: 3328 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:20:43,544 WARN L232 SmtUtils]: Spent 9.10s on a formula simplification. DAG size of input: 3328 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:20:51,311 WARN L232 SmtUtils]: Spent 7.69s on a formula simplification. DAG size of input: 3328 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:21:01,782 WARN L232 SmtUtils]: Spent 10.00s on a formula simplification. DAG size of input: 3328 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:21:21,954 WARN L232 SmtUtils]: Spent 20.10s on a formula simplification. DAG size of input: 4027 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:21:32,604 WARN L232 SmtUtils]: Spent 10.57s on a formula simplification. DAG size of input: 3340 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:21:45,459 WARN L232 SmtUtils]: Spent 8.85s on a formula simplification. DAG size of input: 3250 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:21:59,287 WARN L232 SmtUtils]: Spent 13.82s on a formula simplification. DAG size of input: 3723 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:22:12,767 WARN L232 SmtUtils]: Spent 13.41s on a formula simplification. DAG size of input: 3718 DAG size of output: 1 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Killed by 15