./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.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/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9d7936e5b6ec9509cab6289f8b3da6dd07c923c681ccf9d629892aaea9fa54f9 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 17:29:40,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 17:29:40,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 17:29:40,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 17:29:40,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 17:29:40,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 17:29:40,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 17:29:40,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 17:29:40,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 17:29:40,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 17:29:40,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 17:29:40,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 17:29:40,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 17:29:40,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 17:29:40,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 17:29:40,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 17:29:40,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 17:29:40,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 17:29:40,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 17:29:40,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 17:29:40,491 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 17:29:40,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 17:29:40,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 17:29:40,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 17:29:40,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 17:29:40,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 17:29:40,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 17:29:40,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 17:29:40,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 17:29:40,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 17:29:40,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 17:29:40,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 17:29:40,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 17:29:40,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 17:29:40,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 17:29:40,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 17:29:40,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 17:29:40,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 17:29:40,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 17:29:40,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 17:29:40,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 17:29:40,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 17:29:40,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2022-04-18 17:29:40,533 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 17:29:40,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 17:29:40,534 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 17:29:40,534 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 17:29:40,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 17:29:40,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 17:29:40,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 17:29:40,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 17:29:40,536 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 17:29:40,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 17:29:40,537 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 17:29:40,537 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 17:29:40,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 17:29:40,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 17:29:40,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 17:29:40,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 17:29:40,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 17:29:40,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 17:29:40,538 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 17:29:40,538 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 17:29:40,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 17:29:40,539 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 17:29:40,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 17:29:40,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 17:29:40,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 17:29:40,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-18 17:29:40,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 17:29:40,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 17:29:40,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 17:29:40,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 17:29:40,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 17:29:40,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 17:29:40,540 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2022-04-18 17:29:40,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 17:29:40,541 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 17:29:40,541 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-04-18 17:29:40,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 17:29:40,541 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-04-18 17:29:40,541 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-04-18 17:29:40,541 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d7936e5b6ec9509cab6289f8b3da6dd07c923c681ccf9d629892aaea9fa54f9 [2022-04-18 17:29:40,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 17:29:40,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 17:29:40,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 17:29:40,756 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 17:29:40,757 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 17:29:40,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.i [2022-04-18 17:29:40,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b8a5bd733/7859114b03874f569f3746249ecd21bf/FLAG72e71c198 [2022-04-18 17:29:41,246 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 17:29:41,247 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.i [2022-04-18 17:29:41,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b8a5bd733/7859114b03874f569f3746249ecd21bf/FLAG72e71c198 [2022-04-18 17:29:41,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b8a5bd733/7859114b03874f569f3746249ecd21bf [2022-04-18 17:29:41,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 17:29:41,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 17:29:41,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 17:29:41,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 17:29:41,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 17:29:41,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 05:29:41" (1/1) ... [2022-04-18 17:29:41,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@762efde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:29:41, skipping insertion in model container [2022-04-18 17:29:41,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 05:29:41" (1/1) ... [2022-04-18 17:29:41,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 17:29:41,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 17:29:41,527 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-nondet/nondet-loop-bound-2.i[30035,30048] [2022-04-18 17:29:41,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 17:29:41,553 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 17:29:41,588 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-nondet/nondet-loop-bound-2.i[30035,30048] [2022-04-18 17:29:41,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 17:29:41,630 INFO L208 MainTranslator]: Completed translation [2022-04-18 17:29:41,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:29:41 WrapperNode [2022-04-18 17:29:41,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 17:29:41,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 17:29:41,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 17:29:41,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 17:29:41,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:29:41" (1/1) ... [2022-04-18 17:29:41,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:29:41" (1/1) ... [2022-04-18 17:29:41,675 INFO L137 Inliner]: procedures = 170, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2022-04-18 17:29:41,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 17:29:41,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 17:29:41,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 17:29:41,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 17:29:41,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:29:41" (1/1) ... [2022-04-18 17:29:41,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:29:41" (1/1) ... [2022-04-18 17:29:41,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:29:41" (1/1) ... [2022-04-18 17:29:41,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:29:41" (1/1) ... [2022-04-18 17:29:41,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:29:41" (1/1) ... [2022-04-18 17:29:41,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:29:41" (1/1) ... [2022-04-18 17:29:41,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:29:41" (1/1) ... [2022-04-18 17:29:41,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 17:29:41,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 17:29:41,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 17:29:41,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 17:29:41,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:29:41" (1/1) ... [2022-04-18 17:29:41,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 17:29:41,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:29:41,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 17:29:41,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 17:29:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-04-18 17:29:41,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-04-18 17:29:41,778 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 17:29:41,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 17:29:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 17:29:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 17:29:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 17:29:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 17:29:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 17:29:41,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 17:29:41,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 17:29:41,780 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 17:29:41,867 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 17:29:41,868 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 17:29:41,997 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 17:29:42,002 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 17:29:42,002 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-18 17:29:42,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 05:29:42 BoogieIcfgContainer [2022-04-18 17:29:42,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 17:29:42,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 17:29:42,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 17:29:42,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 17:29:42,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 05:29:41" (1/3) ... [2022-04-18 17:29:42,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa68808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 05:29:42, skipping insertion in model container [2022-04-18 17:29:42,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 05:29:41" (2/3) ... [2022-04-18 17:29:42,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa68808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 05:29:42, skipping insertion in model container [2022-04-18 17:29:42,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 05:29:42" (3/3) ... [2022-04-18 17:29:42,010 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-2.i [2022-04-18 17:29:42,013 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 17:29:42,013 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 17:29:42,013 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-04-18 17:29:42,013 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 17:29:42,062 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 17:29:42,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-04-18 17:29:42,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:29:42,130 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-04-18 17:29:42,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-04-18 17:29:42,168 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2022-04-18 17:29:42,172 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=PARTIAL_ORDER_FA, 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 17:29:42,172 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-04-18 17:29:42,280 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE] === [2022-04-18 17:29:42,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:29:42,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1011704414, now seen corresponding path program 1 times [2022-04-18 17:29:42,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:29:42,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355510649] [2022-04-18 17:29:42,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:29:42,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:29:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:29:42,499 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 17:29:42,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:29:42,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355510649] [2022-04-18 17:29:42,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355510649] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:29:42,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:29:42,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 17:29:42,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324751798] [2022-04-18 17:29:42,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:29:42,507 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 17:29:42,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:29:42,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 17:29:42,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 17:29:42,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:29:42,529 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:29:42,531 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 17:29:42,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:29:42,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:29:42,552 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 17:29:42,552 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE] === [2022-04-18 17:29:42,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:29:42,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1791315739, now seen corresponding path program 1 times [2022-04-18 17:29:42,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:29:42,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239038964] [2022-04-18 17:29:42,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:29:42,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:29:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:29:42,648 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 17:29:42,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:29:42,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239038964] [2022-04-18 17:29:42,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239038964] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:29:42,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:29:42,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 17:29:42,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689396990] [2022-04-18 17:29:42,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:29:42,651 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 17:29:42,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:29:42,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 17:29:42,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 17:29:42,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:29:42,653 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:29:42,653 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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 17:29:42,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:29:42,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:29:42,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:29:42,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:29:42,706 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 17:29:42,706 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE] === [2022-04-18 17:29:42,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:29:42,707 INFO L85 PathProgramCache]: Analyzing trace with hash -613583327, now seen corresponding path program 1 times [2022-04-18 17:29:42,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:29:42,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336668970] [2022-04-18 17:29:42,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:29:42,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:29:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:29:42,776 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 17:29:42,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:29:42,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336668970] [2022-04-18 17:29:42,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336668970] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 17:29:42,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 17:29:42,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 17:29:42,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052662015] [2022-04-18 17:29:42,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 17:29:42,781 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 17:29:42,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:29:42,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 17:29:42,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 17:29:42,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:29:42,783 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:29:42,783 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.0) internal successors, (58), 3 states have internal predecessors, (58), 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 17:29:42,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:29:42,783 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:29:42,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:29:42,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:29:42,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:29:42,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:29:42,991 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 17:29:42,991 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE] === [2022-04-18 17:29:42,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:29:42,993 INFO L85 PathProgramCache]: Analyzing trace with hash -2118920681, now seen corresponding path program 1 times [2022-04-18 17:29:42,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:29:42,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352405369] [2022-04-18 17:29:42,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:29:42,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:29:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:29:43,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 17:29:43,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 17:29:43,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352405369] [2022-04-18 17:29:43,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352405369] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 17:29:43,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734566982] [2022-04-18 17:29:43,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:29:43,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:29:43,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2022-04-18 17:29:43,147 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 17:29:43,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-18 17:29:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 17:29:43,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 6 conjunts are in the unsatisfiable core [2022-04-18 17:29:43,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 17:29:43,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 17:29:43,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 17:29:43,618 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 17:29:43,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734566982] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 17:29:43,619 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 17:29:43,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2022-04-18 17:29:43,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936620664] [2022-04-18 17:29:43,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 17:29:43,620 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 17:29:43,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 17:29:43,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 17:29:43,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-04-18 17:29:43,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:29:43,621 INFO L478 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-04-18 17:29:43,621 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.25) internal successors, (148), 16 states have internal predecessors, (148), 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 17:29:43,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:29:43,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:29:43,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:29:43,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:29:43,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 17:29:43,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:29:43,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 17:29:43,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 17:29:43,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-04-18 17:29:43,901 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 17:29:43,901 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE] === [2022-04-18 17:29:43,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 17:29:43,902 INFO L85 PathProgramCache]: Analyzing trace with hash -2118920650, now seen corresponding path program 1 times [2022-04-18 17:29:43,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 17:29:43,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654071185] [2022-04-18 17:29:43,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 17:29:43,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 17:29:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 17:29:43,918 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 17:29:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 17:29:43,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-18 17:29:43,961 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 17:29:43,961 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 2 remaining) [2022-04-18 17:29:43,963 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 2 remaining) [2022-04-18 17:29:43,963 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 17:29:43,968 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-04-18 17:29:43,969 INFO L306 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was UNSAFE,UNKNOWN (1/3) [2022-04-18 17:29:43,972 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 17:29:43,972 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 17:29:44,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 05:29:44 BasicIcfg [2022-04-18 17:29:44,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 17:29:44,019 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 17:29:44,019 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 17:29:44,019 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 17:29:44,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 05:29:42" (3/4) ... [2022-04-18 17:29:44,021 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-04-18 17:29:44,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 17:29:44,022 INFO L158 Benchmark]: Toolchain (without parser) took 2742.06ms. Allocated memory was 96.5MB in the beginning and 148.9MB in the end (delta: 52.4MB). Free memory was 62.6MB in the beginning and 103.2MB in the end (delta: -40.5MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2022-04-18 17:29:44,022 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory was 52.3MB in the beginning and 52.3MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 17:29:44,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.28ms. Allocated memory was 96.5MB in the beginning and 148.9MB in the end (delta: 52.4MB). Free memory was 62.4MB in the beginning and 112.7MB in the end (delta: -50.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 17:29:44,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.61ms. Allocated memory is still 148.9MB. Free memory was 112.7MB in the beginning and 111.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 17:29:44,023 INFO L158 Benchmark]: Boogie Preprocessor took 36.47ms. Allocated memory is still 148.9MB. Free memory was 111.1MB in the beginning and 109.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 17:29:44,023 INFO L158 Benchmark]: RCFGBuilder took 290.81ms. Allocated memory is still 148.9MB. Free memory was 109.5MB in the beginning and 96.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-04-18 17:29:44,024 INFO L158 Benchmark]: TraceAbstraction took 2013.18ms. Allocated memory is still 148.9MB. Free memory was 96.4MB in the beginning and 104.2MB in the end (delta: -7.8MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2022-04-18 17:29:44,024 INFO L158 Benchmark]: Witness Printer took 2.73ms. Allocated memory is still 148.9MB. Free memory was 104.2MB in the beginning and 103.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 17:29:44,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory was 52.3MB in the beginning and 52.3MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.28ms. Allocated memory was 96.5MB in the beginning and 148.9MB in the end (delta: 52.4MB). Free memory was 62.4MB in the beginning and 112.7MB in the end (delta: -50.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.61ms. Allocated memory is still 148.9MB. Free memory was 112.7MB in the beginning and 111.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.47ms. Allocated memory is still 148.9MB. Free memory was 111.1MB in the beginning and 109.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 290.81ms. Allocated memory is still 148.9MB. Free memory was 109.5MB in the beginning and 96.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2013.18ms. Allocated memory is still 148.9MB. Free memory was 96.4MB in the beginning and 104.2MB in the end (delta: -7.8MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. * Witness Printer took 2.73ms. Allocated memory is still 148.9MB. Free memory was 104.2MB in the beginning and 103.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2691, positive: 2551, positive conditional: 1085, positive unconditional: 1466, negative: 140, negative conditional: 122, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2574, positive: 2551, positive conditional: 1085, positive unconditional: 1466, negative: 23, negative conditional: 5, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2574, positive: 2551, positive conditional: 1085, positive unconditional: 1466, negative: 23, negative conditional: 5, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2597, positive: 2551, positive conditional: 1068, positive unconditional: 1483, negative: 46, negative conditional: 23, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2597, positive: 2551, positive conditional: 439, positive unconditional: 2112, negative: 46, negative conditional: 4, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2597, positive: 2551, positive conditional: 439, positive unconditional: 2112, negative: 46, negative conditional: 4, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1323, positive: 1303, positive conditional: 8, positive unconditional: 1295, negative: 20, negative conditional: 1, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1323, positive: 1283, positive conditional: 0, positive unconditional: 1283, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, positive: 20, positive conditional: 6, positive unconditional: 14, negative: 20, negative conditional: 1, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 91, positive: 61, positive conditional: 5, positive unconditional: 56, negative: 30, negative conditional: 1, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2597, positive: 1248, positive conditional: 431, positive unconditional: 817, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 1323, unknown conditional: 9, unknown unconditional: 1314] , Statistics on independence cache: Total cache size (in pairs): 1323, Positive cache size: 1303, Positive conditional cache size: 8, Positive unconditional cache size: 1295, Negative cache size: 20, Negative conditional cache size: 1, Negative unconditional cache size: 19, Eliminated conditions: 648, Maximal queried relation: 3, Independence queries for same thread: 117 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 329, Number of trivial persistent sets: 262, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1484, positive: 1466, positive conditional: 0, positive unconditional: 1466, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2691, positive: 2551, positive conditional: 1085, positive unconditional: 1466, negative: 140, negative conditional: 122, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2574, positive: 2551, positive conditional: 1085, positive unconditional: 1466, negative: 23, negative conditional: 5, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2574, positive: 2551, positive conditional: 1085, positive unconditional: 1466, negative: 23, negative conditional: 5, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2597, positive: 2551, positive conditional: 1068, positive unconditional: 1483, negative: 46, negative conditional: 23, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2597, positive: 2551, positive conditional: 439, positive unconditional: 2112, negative: 46, negative conditional: 4, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2597, positive: 2551, positive conditional: 439, positive unconditional: 2112, negative: 46, negative conditional: 4, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1323, positive: 1303, positive conditional: 8, positive unconditional: 1295, negative: 20, negative conditional: 1, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1323, positive: 1283, positive conditional: 0, positive unconditional: 1283, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, positive: 20, positive conditional: 6, positive unconditional: 14, negative: 20, negative conditional: 1, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 91, positive: 61, positive conditional: 5, positive unconditional: 56, negative: 30, negative conditional: 1, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2597, positive: 1248, positive conditional: 431, positive unconditional: 817, negative: 26, negative conditional: 3, negative unconditional: 23, unknown: 1323, unknown conditional: 9, unknown unconditional: 1314] , Statistics on independence cache: Total cache size (in pairs): 1323, Positive cache size: 1303, Positive conditional cache size: 8, Positive unconditional cache size: 1295, Negative cache size: 20, Negative conditional cache size: 1, Negative unconditional cache size: 19, Eliminated conditions: 648, Maximal queried relation: 3, Independence queries for same thread: 117 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L690] 0 volatile int x; VAL [x=0] [L691] 0 volatile int n; VAL [n=0, x=0] [L701] 0 pthread_t t1, t2; VAL [\old(argc)=50, argc=50, argv={53:51}, argv={53:51}, n=0, t1={5:0}, t2={3:0}, x=0] [L702] 0 int i; VAL [\old(argc)=50, argc=50, argv={53:51}, argv={53:51}, n=0, t1={5:0}, t2={3:0}, x=0] [L703] 0 x = 0 VAL [\old(argc)=50, argc=50, argv={53:51}, argv={53:51}, n=0, t1={5:0}, t2={3:0}, x=0] [L704] 0 n = __VERIFIER_nondet_uint() VAL [\old(argc)=50, __VERIFIER_nondet_uint()=39, argc=50, argv={53:51}, argv={53:51}, n=39, n = __VERIFIER_nondet_uint()=52, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n >= 20 VAL [\old(argc)=50, argc=50, argv={53:51}, argv={53:51}, n=39, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n >= 20 && n < 40 VAL [\old(argc)=50, argc=50, argv={53:51}, argv={53:51}, n=39, n >= 20 && n < 40=1, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n < 40 VAL [\old(argc)=50, argc=50, argv={53:51}, argv={53:51}, n=39, n >= 20 && n < 40=1, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n >= 20 && n < 40 VAL [\old(argc)=50, argc=50, argv={53:51}, argv={53:51}, n=39, n >= 20 && n < 40=1, t1={5:0}, t2={3:0}, x=0] [L705] CALL 0 assume_abort_if_not(n >= 20 && n < 40) [L687] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, n=39, x=0] [L705] RET 0 assume_abort_if_not(n >= 20 && n < 40) [L706] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=50, argc=50, argv={53:51}, argv={53:51}, n=39, pthread_create(&t1, 0, thr1, 0)=6, t1={5:0}, t2={3:0}, x=0] [L693] 1 x <= n VAL [arg={0:0}, arg={0:0}, n=39, x=0] [L707] 0 i = 0 VAL [\old(argc)=50, argc=50, argv={53:51}, argv={53:51}, i=0, n=39, t1={5:0}, t2={3:0}, x=0] [L707] 0 i < n VAL [\old(argc)=50, argc=50, argv={53:51}, argv={53:51}, i=0, n=39, t1={5:0}, t2={3:0}, x=0] [L707] COND TRUE 0 i < n VAL [\old(argc)=50, argc=50, argv={53:51}, argv={53:51}, i=0, n=39, t1={5:0}, t2={3:0}, x=0] [L708] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=50, arg={0:0}, argc=50, argv={53:51}, argv={53:51}, i=0, n=39, pthread_create(&t2, 0, thr2, 0)=7, t1={5:0}, t2={3:0}, x=0] [L696] 2 int t; VAL [arg={0:0}, arg={0:0}, n=39, x=0] [L697] 2 t = x VAL [arg={0:0}, arg={0:0}, n=39, x=0] [L707] 0 i++ VAL [\old(argc)=50, arg={0:0}, arg={0:0}, argc=50, argv={53:51}, argv={53:51}, i=0, i++=0, n=39, t1={5:0}, t2={3:0}, x=0] [L697] 2 t = x VAL [arg={0:0}, arg={0:0}, n=39, x=0] [L707] 0 i++ VAL [\old(argc)=50, arg={0:0}, arg={0:0}, argc=50, argv={53:51}, argv={53:51}, i=1, i++=0, n=39, t1={5:0}, t2={3:0}, x=0] [L697] 2 t = x VAL [arg={0:0}, arg={0:0}, n=39, t=0, x=0] [L698] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=39, t=0, x=1] [L707] 0 i < n VAL [\old(argc)=50, arg={0:0}, arg={0:0}, argc=50, argv={53:51}, argv={53:51}, i=1, n=39, t=0, t1={5:0}, t2={3:0}, x=1] [L707] 0 i < n VAL [\old(argc)=50, arg={0:0}, arg={0:0}, argc=50, argv={53:51}, argv={53:51}, i=1, n=39, t=0, t1={5:0}, t2={3:0}, x=1] [L698] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=39, t=0, x=1, x = t + 1=54] [L707] COND TRUE 0 i < n VAL [\old(argc)=50, arg={0:0}, arg={0:0}, argc=50, argv={53:51}, argv={53:51}, i=1, n=39, t=0, t1={5:0}, t2={3:0}, x=1, x = t + 1=54] [L693] 1 x <= n VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, n=39, t=0, x=1, x = t + 1=54] Now there is a data race on ~x~0 between C: x = t + 1 [698] and C: x <= n [693] - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 143 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 401 NumberOfCodeBlocks, 401 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 395 ConstructedInterpolants, 0 QuantifiedInterpolants, 873 SizeOfPredicates, 5 NumberOfNonLiveVariables, 182 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 0/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-04-18 17:29:44,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-04-18 17:29:44,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE