./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_rmo.oepc_rmo.opt-thin000_rmo.oepc_rmo.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/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_rmo.oepc_rmo.opt-thin000_rmo.oepc_rmo.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15ac4e1d4eb7f123e42f66ffca6b608a72882a0faec253c9cc2d868c4bb280c3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:22:16,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:22:16,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:22:16,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:22:16,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:22:16,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:22:16,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:22:16,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:22:16,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:22:16,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:22:16,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:22:16,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:22:16,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:22:16,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:22:16,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:22:16,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:22:16,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:22:16,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:22:16,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:22:16,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:22:16,582 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:22:16,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:22:16,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:22:16,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:22:16,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:22:16,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:22:16,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:22:16,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:22:16,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:22:16,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:22:16,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:22:16,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:22:16,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:22:16,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:22:16,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:22:16,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:22:16,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:22:16,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:22:16,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:22:16,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:22:16,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:22:16,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:22:16,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:22:16,618 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:22:16,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:22:16,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:22:16,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:22:16,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:22:16,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:22:16,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:22:16,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:22:16,620 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:22:16,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:22:16,621 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:22:16,621 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:22:16,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:22:16,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:22:16,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:22:16,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:22:16,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:22:16,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:22:16,622 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:22:16,622 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:22:16,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:22:16,622 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:22:16,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:22:16,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:22:16,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:22:16,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:22:16,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:22:16,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:22:16,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:22:16,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:22:16,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:22:16,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:22:16,624 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:22:16,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:22:16,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:22:16,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15ac4e1d4eb7f123e42f66ffca6b608a72882a0faec253c9cc2d868c4bb280c3 [2022-04-18 16:22:16,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:22:16,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:22:16,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:22:16,845 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:22:16,846 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:22:16,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_rmo.oepc_rmo.opt-thin000_rmo.oepc_rmo.opt.i [2022-04-18 16:22:16,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15938356f/b15b1b38beec4c04bbdf2edb038a1d64/FLAG34aa5a040 [2022-04-18 16:22:17,328 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:22:17,332 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_rmo.oepc_rmo.opt-thin000_rmo.oepc_rmo.opt.i [2022-04-18 16:22:17,345 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15938356f/b15b1b38beec4c04bbdf2edb038a1d64/FLAG34aa5a040 [2022-04-18 16:22:17,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15938356f/b15b1b38beec4c04bbdf2edb038a1d64 [2022-04-18 16:22:17,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:22:17,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:22:17,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:22:17,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:22:17,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:22:17,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:22:17" (1/1) ... [2022-04-18 16:22:17,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a27892f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:22:17, skipping insertion in model container [2022-04-18 16:22:17,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:22:17" (1/1) ... [2022-04-18 16:22:17,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:22:17,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:22:17,535 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/safe006_rmo.oepc_rmo.opt-thin000_rmo.oepc_rmo.opt.i[1026,1039] [2022-04-18 16:22:17,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:22:17,688 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:22:17,710 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/safe006_rmo.oepc_rmo.opt-thin000_rmo.oepc_rmo.opt.i[1026,1039] [2022-04-18 16:22:17,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:22:17,791 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:22:17,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:22:17 WrapperNode [2022-04-18 16:22:17,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:22:17,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:22:17,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:22:17,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:22:17,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:22:17" (1/1) ... [2022-04-18 16:22:17,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:22:17" (1/1) ... [2022-04-18 16:22:17,857 INFO L137 Inliner]: procedures = 175, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 293 [2022-04-18 16:22:17,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:22:17,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:22:17,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:22:17,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:22:17,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:22:17" (1/1) ... [2022-04-18 16:22:17,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:22:17" (1/1) ... [2022-04-18 16:22:17,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:22:17" (1/1) ... [2022-04-18 16:22:17,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:22:17" (1/1) ... [2022-04-18 16:22:17,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:22:17" (1/1) ... [2022-04-18 16:22:17,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:22:17" (1/1) ... [2022-04-18 16:22:17,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:22:17" (1/1) ... [2022-04-18 16:22:17,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:22:17,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:22:17,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:22:17,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:22:17,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:22:17" (1/1) ... [2022-04-18 16:22:17,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:22:17,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:22:17,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 16:22:17,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 16:22:18,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:22:18,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:22:18,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:22:18,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:22:18,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:22:18,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:22:18,002 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-04-18 16:22:18,002 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-04-18 16:22:18,002 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-04-18 16:22:18,002 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-04-18 16:22:18,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:22:18,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:22:18,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:22:18,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:22:18,004 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:22:18,137 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:22:18,138 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:22:18,871 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:23:10,607 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:23:10,607 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 16:23:10,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:23:10 BoogieIcfgContainer [2022-04-18 16:23:10,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:23:10,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:23:10,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:23:10,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:23:10,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:22:17" (1/3) ... [2022-04-18 16:23:10,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee9c44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:23:10, skipping insertion in model container [2022-04-18 16:23:10,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:22:17" (2/3) ... [2022-04-18 16:23:10,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee9c44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:23:10, skipping insertion in model container [2022-04-18 16:23:10,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:23:10" (3/3) ... [2022-04-18 16:23:10,619 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_rmo.oepc_rmo.opt-thin000_rmo.oepc_rmo.opt.i [2022-04-18 16:23:10,622 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:23:10,622 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:23:10,622 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 177 error locations. [2022-04-18 16:23:10,623 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:23:17,384 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 16:23:17,657 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:23:17,665 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=PETRI_NET, 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 16:23:17,665 INFO L341 AbstractCegarLoop]: Starting to check reachability of 313 error locations. [2022-04-18 16:23:17,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 295 places, 290 transitions, 590 flow [2022-04-18 16:23:18,151 INFO L129 PetriNetUnfolder]: 2/288 cut-off events. [2022-04-18 16:23:18,151 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:23:18,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 288 events. 2/288 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 1628 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 233. Up to 2 conditions per place. [2022-04-18 16:23:18,160 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 290 transitions, 590 flow [2022-04-18 16:23:18,176 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 293 places, 288 transitions, 582 flow [2022-04-18 16:23:18,204 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2022-04-18 16:23:18,204 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:23:18,204 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:23:18,205 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:23:18,205 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err93ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 309 more)] === [2022-04-18 16:23:18,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:23:18,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1263191523, now seen corresponding path program 1 times [2022-04-18 16:23:18,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:23:18,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246320729] [2022-04-18 16:23:18,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:23:18,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:23:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:23:18,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:23:18,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:23:18,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246320729] [2022-04-18 16:23:18,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246320729] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:23:18,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:23:18,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 16:23:18,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999767962] [2022-04-18 16:23:18,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:23:18,850 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 16:23:18,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:23:18,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 16:23:18,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 16:23:18,883 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 290 [2022-04-18 16:23:18,890 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 288 transitions, 582 flow. Second operand has 2 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:23:18,891 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:23:18,891 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 290 [2022-04-18 16:23:18,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:23:21,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []