./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71de1c8da7c81d1cb6f2035741a17645b8c79e199c0fda7e542c1cb232593d6b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:10:59,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:10:59,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:10:59,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:10:59,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:10:59,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:10:59,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:10:59,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:10:59,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:10:59,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:10:59,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:10:59,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:10:59,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:10:59,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:10:59,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:10:59,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:10:59,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:10:59,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:10:59,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:10:59,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:10:59,165 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:10:59,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:10:59,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:10:59,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:10:59,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:10:59,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:10:59,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:10:59,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:10:59,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:10:59,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:10:59,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:10:59,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:10:59,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:10:59,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:10:59,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:10:59,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:10:59,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:10:59,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:10:59,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:10:59,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:10:59,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:10:59,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:10:59,183 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 19:10:59,214 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:10:59,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:10:59,214 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:10:59,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:10:59,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:10:59,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:10:59,216 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:10:59,216 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:10:59,216 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:10:59,217 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 19:10:59,217 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:10:59,217 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:10:59,217 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 19:10:59,218 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 19:10:59,218 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:10:59,218 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 19:10:59,218 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 19:10:59,218 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 19:10:59,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:10:59,220 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:10:59,220 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:10:59,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 19:10:59,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:10:59,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:10:59,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:10:59,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:10:59,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:10:59,221 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:10:59,221 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:10:59,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:10:59,222 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:10:59,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:10:59,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:10:59,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:10:59,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:10:59,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:10:59,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:10:59,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:10:59,224 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 19:10:59,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 19:10:59,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:10:59,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:10:59,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:10:59,225 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71de1c8da7c81d1cb6f2035741a17645b8c79e199c0fda7e542c1cb232593d6b [2022-04-18 19:10:59,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:10:59,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:10:59,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:10:59,524 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:10:59,525 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:10:59,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i [2022-04-18 19:10:59,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f5e80b6c2/153e925f43aa426ea33f8c4b86ac59fa/FLAG409694728 [2022-04-18 19:11:00,014 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:11:00,015 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i [2022-04-18 19:11:00,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f5e80b6c2/153e925f43aa426ea33f8c4b86ac59fa/FLAG409694728 [2022-04-18 19:11:00,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f5e80b6c2/153e925f43aa426ea33f8c4b86ac59fa [2022-04-18 19:11:00,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:11:00,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:11:00,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:11:00,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:11:00,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:11:00,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:11:00" (1/1) ... [2022-04-18 19:11:00,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@555d733d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:00, skipping insertion in model container [2022-04-18 19:11:00,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:11:00" (1/1) ... [2022-04-18 19:11:00,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:11:00,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:11:00,442 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-ext/25_stack_longer-1.i[31042,31055] [2022-04-18 19:11:00,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:11:00,458 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:11:00,508 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-ext/25_stack_longer-1.i[31042,31055] [2022-04-18 19:11:00,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:11:00,559 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:11:00,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:00 WrapperNode [2022-04-18 19:11:00,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:11:00,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:11:00,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:11:00,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:11:00,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:00" (1/1) ... [2022-04-18 19:11:00,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:00" (1/1) ... [2022-04-18 19:11:00,611 INFO L137 Inliner]: procedures = 177, calls = 34, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 292 [2022-04-18 19:11:00,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:11:00,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:11:00,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:11:00,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:11:00,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:00" (1/1) ... [2022-04-18 19:11:00,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:00" (1/1) ... [2022-04-18 19:11:00,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:00" (1/1) ... [2022-04-18 19:11:00,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:00" (1/1) ... [2022-04-18 19:11:00,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:00" (1/1) ... [2022-04-18 19:11:00,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:00" (1/1) ... [2022-04-18 19:11:00,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:00" (1/1) ... [2022-04-18 19:11:00,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:11:00,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:11:00,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:11:00,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:11:00,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:00" (1/1) ... [2022-04-18 19:11:00,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:11:00,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:11:00,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 19:11:00,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 19:11:00,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 19:11:00,722 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 19:11:00,722 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 19:11:00,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 19:11:00,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:11:00,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:11:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:11:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 19:11:00,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:11:00,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:11:00,724 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 19:11:00,819 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:11:00,821 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:11:01,269 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:11:01,488 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:11:01,488 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 19:11:01,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:11:01 BoogieIcfgContainer [2022-04-18 19:11:01,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:11:01,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:11:01,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:11:01,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:11:01,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:11:00" (1/3) ... [2022-04-18 19:11:01,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421222a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:11:01, skipping insertion in model container [2022-04-18 19:11:01,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:11:00" (2/3) ... [2022-04-18 19:11:01,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421222a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:11:01, skipping insertion in model container [2022-04-18 19:11:01,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:11:01" (3/3) ... [2022-04-18 19:11:01,498 INFO L111 eAbstractionObserver]: Analyzing ICFG 25_stack_longer-1.i [2022-04-18 19:11:01,502 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:11:01,502 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:11:01,503 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-04-18 19:11:01,503 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:11:01,560 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:11:01,597 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:11:01,602 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 19:11:01,603 INFO L341 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-04-18 19:11:01,614 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:11:01,626 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 166 transitions, 337 flow [2022-04-18 19:11:01,631 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 166 transitions, 337 flow [2022-04-18 19:11:01,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 162 places, 166 transitions, 337 flow [2022-04-18 19:11:01,708 INFO L129 PetriNetUnfolder]: 8/177 cut-off events. [2022-04-18 19:11:01,708 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:11:01,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 177 events. 8/177 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 237 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 141. Up to 4 conditions per place. [2022-04-18 19:11:01,724 INFO L116 LiptonReduction]: Number of co-enabled transitions 3584 [2022-04-18 19:11:09,472 INFO L131 LiptonReduction]: Checked pairs total: 3664 [2022-04-18 19:11:09,472 INFO L133 LiptonReduction]: Total number of compositions: 217 [2022-04-18 19:11:09,479 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 44 transitions, 93 flow [2022-04-18 19:11:09,500 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 177 states, 124 states have (on average 2.661290322580645) internal successors, (330), 176 states have internal predecessors, (330), 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 19:11:09,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 124 states have (on average 2.661290322580645) internal successors, (330), 176 states have internal predecessors, (330), 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 19:11:09,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-04-18 19:11:09,507 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:09,507 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-04-18 19:11:09,508 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-04-18 19:11:09,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:09,512 INFO L85 PathProgramCache]: Analyzing trace with hash 37793616, now seen corresponding path program 1 times [2022-04-18 19:11:09,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:09,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599248174] [2022-04-18 19:11:09,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:09,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:09,693 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 19:11:09,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:09,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599248174] [2022-04-18 19:11:09,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599248174] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:09,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:09,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:11:09,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636745654] [2022-04-18 19:11:09,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:09,700 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:11:09,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:09,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:11:09,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:11:09,726 INFO L87 Difference]: Start difference. First operand has 177 states, 124 states have (on average 2.661290322580645) internal successors, (330), 176 states have internal predecessors, (330), 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) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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 19:11:09,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:09,773 INFO L93 Difference]: Finished difference Result 39 states and 74 transitions. [2022-04-18 19:11:09,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:11:09,775 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-04-18 19:11:09,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:09,782 INFO L225 Difference]: With dead ends: 39 [2022-04-18 19:11:09,782 INFO L226 Difference]: Without dead ends: 39 [2022-04-18 19:11:09,783 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:11:09,786 INFO L913 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:09,787 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:11:09,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-04-18 19:11:09,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-04-18 19:11:09,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.9473684210526316) internal successors, (74), 38 states have internal predecessors, (74), 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 19:11:09,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 74 transitions. [2022-04-18 19:11:09,823 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 74 transitions. Word has length 4 [2022-04-18 19:11:09,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:09,823 INFO L478 AbstractCegarLoop]: Abstraction has 39 states and 74 transitions. [2022-04-18 19:11:09,824 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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 19:11:09,824 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 74 transitions. [2022-04-18 19:11:09,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:11:09,825 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:09,826 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-04-18 19:11:09,826 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:11:09,829 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-04-18 19:11:09,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:09,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1959835874, now seen corresponding path program 1 times [2022-04-18 19:11:09,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:09,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540004087] [2022-04-18 19:11:09,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:09,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:11:09,874 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:11:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:11:09,928 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:11:09,930 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:11:09,932 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2022-04-18 19:11:09,933 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2022-04-18 19:11:09,934 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2022-04-18 19:11:09,934 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2022-04-18 19:11:09,935 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2022-04-18 19:11:09,935 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2022-04-18 19:11:09,936 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2022-04-18 19:11:09,936 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2022-04-18 19:11:09,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2022-04-18 19:11:09,941 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2022-04-18 19:11:09,941 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2022-04-18 19:11:09,941 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2022-04-18 19:11:09,942 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2022-04-18 19:11:09,942 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2022-04-18 19:11:09,942 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2022-04-18 19:11:09,943 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2022-04-18 19:11:09,943 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2022-04-18 19:11:09,944 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2022-04-18 19:11:09,944 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2022-04-18 19:11:09,944 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2022-04-18 19:11:09,944 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2022-04-18 19:11:09,944 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2022-04-18 19:11:09,945 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2022-04-18 19:11:09,945 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2022-04-18 19:11:09,945 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2022-04-18 19:11:09,945 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2022-04-18 19:11:09,945 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2022-04-18 19:11:09,946 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2022-04-18 19:11:09,949 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2022-04-18 19:11:09,950 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2022-04-18 19:11:09,950 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2022-04-18 19:11:09,950 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2022-04-18 19:11:09,950 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2022-04-18 19:11:09,950 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2022-04-18 19:11:09,951 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2022-04-18 19:11:09,952 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2022-04-18 19:11:09,952 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2022-04-18 19:11:09,952 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2022-04-18 19:11:09,952 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2022-04-18 19:11:09,953 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2022-04-18 19:11:09,953 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2022-04-18 19:11:09,953 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2022-04-18 19:11:09,953 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2022-04-18 19:11:09,953 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2022-04-18 19:11:09,954 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2022-04-18 19:11:09,954 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2022-04-18 19:11:09,954 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2022-04-18 19:11:09,954 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2022-04-18 19:11:09,954 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2022-04-18 19:11:09,955 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2022-04-18 19:11:09,955 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2022-04-18 19:11:09,955 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2022-04-18 19:11:09,955 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2022-04-18 19:11:09,956 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:11:09,959 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-18 19:11:09,961 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:11:09,961 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 19:11:10,038 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:11:10,047 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:11:10,048 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 19:11:10,049 INFO L341 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2022-04-18 19:11:10,054 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:11:10,054 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 287 places, 295 transitions, 602 flow [2022-04-18 19:11:10,055 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 287 places, 295 transitions, 602 flow [2022-04-18 19:11:10,056 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 287 places, 295 transitions, 602 flow [2022-04-18 19:11:10,153 INFO L129 PetriNetUnfolder]: 15/319 cut-off events. [2022-04-18 19:11:10,153 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 19:11:10,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 319 events. 15/319 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 886 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 269. Up to 6 conditions per place. [2022-04-18 19:11:10,182 INFO L116 LiptonReduction]: Number of co-enabled transitions 40192 [2022-04-18 19:14:06,428 WARN L230 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-04-18 19:14:06,429 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.checkImplication(TransFormulaUtils.java:1154) at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.performInclusionCheck(SemanticIndependenceRelation.java:197) at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.containsLBool(SemanticIndependenceRelation.java:145) at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:123) at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:1) at de.uni_freiburg.informatik.ultimate.automata.partialorder.UnionIndependenceRelation.lambda$2(UnionIndependenceRelation.java:70) at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90) at java.base/java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958) at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.anyMatch(ReferencePipeline.java:528) at de.uni_freiburg.informatik.ultimate.automata.partialorder.UnionIndependenceRelation.contains(UnionIndependenceRelation.java:70) at de.uni_freiburg.informatik.ultimate.automata.partialorder.CachedIndependenceRelation.contains(CachedIndependenceRelation.java:120) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.lambda$1(LiptonReduction.java:465) at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90) at java.base/java.util.HashMap$KeySpliterator.tryAdvance(HashMap.java:1624) at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.allMatch(ReferencePipeline.java:533) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.isRightMover(LiptonReduction.java:465) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRuleCheck(LiptonReduction.java:408) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRule(LiptonReduction.java:310) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.(LiptonReduction.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.petrinetlbe.PetriNetLargeBlockEncoding.(PetriNetLargeBlockEncoding.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.computeInitialAbstraction(AbstractCegarLoop.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 60 more [2022-04-18 19:14:06,433 INFO L158 Benchmark]: Toolchain (without parser) took 186393.30ms. Allocated memory was 88.1MB in the beginning and 178.3MB in the end (delta: 90.2MB). Free memory was 51.5MB in the beginning and 62.2MB in the end (delta: -10.7MB). Peak memory consumption was 124.1MB. Max. memory is 16.1GB. [2022-04-18 19:14:06,433 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 19:14:06,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 519.77ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 51.3MB in the beginning and 96.4MB in the end (delta: -45.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-04-18 19:14:06,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.20ms. Allocated memory is still 132.1MB. Free memory was 96.4MB in the beginning and 93.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 19:14:06,434 INFO L158 Benchmark]: Boogie Preprocessor took 46.32ms. Allocated memory is still 132.1MB. Free memory was 93.1MB in the beginning and 90.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 19:14:06,434 INFO L158 Benchmark]: RCFGBuilder took 832.31ms. Allocated memory is still 132.1MB. Free memory was 90.1MB in the beginning and 90.7MB in the end (delta: -545.6kB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2022-04-18 19:14:06,434 INFO L158 Benchmark]: TraceAbstraction took 184940.09ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 90.7MB in the beginning and 62.2MB in the end (delta: 28.5MB). Peak memory consumption was 118.9MB. Max. memory is 16.1GB. [2022-04-18 19:14:06,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2022-04-18 19:14:06,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 519.77ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 51.3MB in the beginning and 96.4MB in the end (delta: -45.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.20ms. Allocated memory is still 132.1MB. Free memory was 96.4MB in the beginning and 93.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.32ms. Allocated memory is still 132.1MB. Free memory was 93.1MB in the beginning and 90.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 832.31ms. Allocated memory is still 132.1MB. Free memory was 90.1MB in the beginning and 90.7MB in the end (delta: -545.6kB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * TraceAbstraction took 184940.09ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 90.7MB in the beginning and 62.2MB in the end (delta: 28.5MB). Peak memory consumption was 118.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8s, 162 PlacesBefore, 43 PlacesAfterwards, 166 TransitionsBefore, 44 TransitionsAfterwards, 3584 CoEnabledTransitionPairs, 6 FixpointIterations, 22 TrivialSequentialCompositions, 178 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 3 ChoiceCompositions, 217 TotalNumberOfCompositions, 3664 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3234, positive: 3164, positive conditional: 0, positive unconditional: 3164, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2302, positive: 2269, positive conditional: 0, positive unconditional: 2269, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2302, positive: 2262, positive conditional: 0, positive unconditional: 2262, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 259, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 252, negative conditional: 0, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3234, positive: 895, positive conditional: 0, positive unconditional: 895, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 2302, unknown conditional: 0, unknown unconditional: 2302] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - 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 - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71de1c8da7c81d1cb6f2035741a17645b8c79e199c0fda7e542c1cb232593d6b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:14:08,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:14:08,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:14:08,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:14:08,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:14:08,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:14:08,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:14:08,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:14:08,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:14:08,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:14:08,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:14:08,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:14:08,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:14:08,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:14:08,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:14:08,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:14:08,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:14:08,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:14:08,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:14:08,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:14:08,367 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:14:08,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:14:08,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:14:08,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:14:08,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:14:08,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:14:08,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:14:08,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:14:08,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:14:08,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:14:08,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:14:08,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:14:08,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:14:08,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:14:08,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:14:08,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:14:08,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:14:08,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:14:08,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:14:08,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:14:08,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:14:08,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:14:08,392 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf [2022-04-18 19:14:08,431 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:14:08,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:14:08,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:14:08,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:14:08,433 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:14:08,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:14:08,434 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:14:08,434 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:14:08,434 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:14:08,435 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:14:08,435 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:14:08,436 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:14:08,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:14:08,437 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:14:08,437 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:14:08,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:14:08,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:14:08,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:14:08,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:14:08,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:14:08,438 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:14:08,439 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-04-18 19:14:08,439 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-04-18 19:14:08,439 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:14:08,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:14:08,439 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:14:08,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:14:08,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:14:08,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 19:14:08,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:14:08,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:14:08,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:14:08,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:14:08,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:14:08,441 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-04-18 19:14:08,442 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-04-18 19:14:08,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:14:08,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:14:08,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:14:08,442 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71de1c8da7c81d1cb6f2035741a17645b8c79e199c0fda7e542c1cb232593d6b [2022-04-18 19:14:08,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:14:08,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:14:08,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:14:08,850 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:14:08,851 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:14:08,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i [2022-04-18 19:14:08,922 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/087c07320/8bab62ada82d4e20bfb7eddf4235eb2e/FLAG62e126d5c [2022-04-18 19:14:09,479 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:14:09,480 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/25_stack_longer-1.i [2022-04-18 19:14:09,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/087c07320/8bab62ada82d4e20bfb7eddf4235eb2e/FLAG62e126d5c [2022-04-18 19:14:09,785 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/087c07320/8bab62ada82d4e20bfb7eddf4235eb2e [2022-04-18 19:14:09,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:14:09,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:14:09,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:14:09,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:14:09,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:14:09,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:14:09" (1/1) ... [2022-04-18 19:14:09,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42ee496b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:09, skipping insertion in model container [2022-04-18 19:14:09,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:14:09" (1/1) ... [2022-04-18 19:14:09,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:14:09,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:14:10,211 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-ext/25_stack_longer-1.i[31042,31055] [2022-04-18 19:14:10,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:14:10,238 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:14:10,280 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-ext/25_stack_longer-1.i[31042,31055] [2022-04-18 19:14:10,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:14:10,327 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:14:10,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:10 WrapperNode [2022-04-18 19:14:10,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:14:10,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:14:10,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:14:10,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:14:10,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:10" (1/1) ... [2022-04-18 19:14:10,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:10" (1/1) ... [2022-04-18 19:14:10,408 INFO L137 Inliner]: procedures = 181, calls = 34, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 289 [2022-04-18 19:14:10,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:14:10,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:14:10,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:14:10,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:14:10,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:10" (1/1) ... [2022-04-18 19:14:10,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:10" (1/1) ... [2022-04-18 19:14:10,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:10" (1/1) ... [2022-04-18 19:14:10,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:10" (1/1) ... [2022-04-18 19:14:10,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:10" (1/1) ... [2022-04-18 19:14:10,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:10" (1/1) ... [2022-04-18 19:14:10,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:10" (1/1) ... [2022-04-18 19:14:10,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:14:10,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:14:10,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:14:10,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:14:10,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:10" (1/1) ... [2022-04-18 19:14:10,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:14:10,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:14:10,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 19:14:10,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 19:14:10,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-04-18 19:14:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 19:14:10,540 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 19:14:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:14:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:14:10,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:14:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-04-18 19:14:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-04-18 19:14:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-04-18 19:14:10,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:14:10,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:14:10,542 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 19:14:10,680 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:14:10,682 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:14:11,176 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:14:11,533 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:14:11,534 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 19:14:11,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:14:11 BoogieIcfgContainer [2022-04-18 19:14:11,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:14:11,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:14:11,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:14:11,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:14:11,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:14:09" (1/3) ... [2022-04-18 19:14:11,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a98a054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:14:11, skipping insertion in model container [2022-04-18 19:14:11,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:14:10" (2/3) ... [2022-04-18 19:14:11,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a98a054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:14:11, skipping insertion in model container [2022-04-18 19:14:11,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:14:11" (3/3) ... [2022-04-18 19:14:11,543 INFO L111 eAbstractionObserver]: Analyzing ICFG 25_stack_longer-1.i [2022-04-18 19:14:11,547 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:14:11,547 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:14:11,547 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-04-18 19:14:11,547 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:14:11,636 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:14:11,685 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:14:11,691 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 19:14:11,692 INFO L341 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-04-18 19:14:11,704 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:14:11,716 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 164 transitions, 333 flow [2022-04-18 19:14:11,718 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 164 transitions, 333 flow [2022-04-18 19:14:11,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 160 places, 164 transitions, 333 flow [2022-04-18 19:14:11,787 INFO L129 PetriNetUnfolder]: 8/175 cut-off events. [2022-04-18 19:14:11,788 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:14:11,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 175 events. 8/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 232 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 138. Up to 4 conditions per place. [2022-04-18 19:14:11,797 INFO L116 LiptonReduction]: Number of co-enabled transitions 3500 [2022-04-18 19:14:48,450 INFO L131 LiptonReduction]: Checked pairs total: 4744 [2022-04-18 19:14:48,451 INFO L133 LiptonReduction]: Total number of compositions: 231 [2022-04-18 19:14:48,457 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 42 transitions, 89 flow [2022-04-18 19:14:48,480 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 172 states, 119 states have (on average 2.6554621848739495) internal successors, (316), 171 states have internal predecessors, (316), 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 19:14:48,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 172 states, 119 states have (on average 2.6554621848739495) internal successors, (316), 171 states have internal predecessors, (316), 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 19:14:48,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-04-18 19:14:48,485 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:14:48,486 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-04-18 19:14:48,486 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-04-18 19:14:48,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:14:48,490 INFO L85 PathProgramCache]: Analyzing trace with hash 37533862, now seen corresponding path program 1 times [2022-04-18 19:14:48,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-04-18 19:14:48,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514083563] [2022-04-18 19:14:48,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:14:48,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-04-18 19:14:48,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat [2022-04-18 19:14:48,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-04-18 19:14:48,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-04-18 19:14:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:14:48,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2022-04-18 19:14:48,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:14:48,649 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 19:14:48,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 19:14:48,650 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-04-18 19:14:48,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514083563] [2022-04-18 19:14:48,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514083563] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:14:48,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:14:48,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:14:48,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131715502] [2022-04-18 19:14:48,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:14:48,656 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:14:48,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-04-18 19:14:48,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:14:48,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:14:48,675 INFO L87 Difference]: Start difference. First operand has 172 states, 119 states have (on average 2.6554621848739495) internal successors, (316), 171 states have internal predecessors, (316), 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) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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 19:14:48,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:14:48,746 INFO L93 Difference]: Finished difference Result 35 states and 63 transitions. [2022-04-18 19:14:48,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:14:48,749 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-04-18 19:14:48,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:14:48,755 INFO L225 Difference]: With dead ends: 35 [2022-04-18 19:14:48,755 INFO L226 Difference]: Without dead ends: 35 [2022-04-18 19:14:48,756 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:14:48,758 INFO L913 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:14:48,759 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:14:48,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-04-18 19:14:48,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-04-18 19:14:48,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.8529411764705883) internal successors, (63), 34 states have internal predecessors, (63), 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 19:14:48,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 63 transitions. [2022-04-18 19:14:48,801 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 63 transitions. Word has length 4 [2022-04-18 19:14:48,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:14:48,802 INFO L478 AbstractCegarLoop]: Abstraction has 35 states and 63 transitions. [2022-04-18 19:14:48,802 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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 19:14:48,802 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 63 transitions. [2022-04-18 19:14:48,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:14:48,803 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:14:48,803 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-04-18 19:14:48,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-04-18 19:14:49,013 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 [2022-04-18 19:14:49,014 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-04-18 19:14:49,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:14:49,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1710185642, now seen corresponding path program 1 times [2022-04-18 19:14:49,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-04-18 19:14:49,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302854979] [2022-04-18 19:14:49,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:14:49,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-04-18 19:14:49,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat [2022-04-18 19:14:49,017 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-04-18 19:14:49,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-04-18 19:14:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:14:49,090 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:14:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:14:49,157 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-04-18 19:14:49,158 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:14:49,159 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2022-04-18 19:14:49,161 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2022-04-18 19:14:49,161 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2022-04-18 19:14:49,161 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2022-04-18 19:14:49,161 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2022-04-18 19:14:49,162 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2022-04-18 19:14:49,162 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2022-04-18 19:14:49,162 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2022-04-18 19:14:49,162 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2022-04-18 19:14:49,163 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2022-04-18 19:14:49,163 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2022-04-18 19:14:49,163 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2022-04-18 19:14:49,163 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2022-04-18 19:14:49,163 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2022-04-18 19:14:49,164 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2022-04-18 19:14:49,164 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2022-04-18 19:14:49,164 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2022-04-18 19:14:49,164 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2022-04-18 19:14:49,165 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2022-04-18 19:14:49,165 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2022-04-18 19:14:49,165 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2022-04-18 19:14:49,165 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2022-04-18 19:14:49,166 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2022-04-18 19:14:49,166 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2022-04-18 19:14:49,166 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2022-04-18 19:14:49,166 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2022-04-18 19:14:49,166 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2022-04-18 19:14:49,167 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2022-04-18 19:14:49,167 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2022-04-18 19:14:49,167 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2022-04-18 19:14:49,167 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2022-04-18 19:14:49,168 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2022-04-18 19:14:49,168 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2022-04-18 19:14:49,168 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2022-04-18 19:14:49,168 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2022-04-18 19:14:49,169 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2022-04-18 19:14:49,169 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2022-04-18 19:14:49,169 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2022-04-18 19:14:49,169 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2022-04-18 19:14:49,169 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2022-04-18 19:14:49,170 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2022-04-18 19:14:49,170 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2022-04-18 19:14:49,170 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2022-04-18 19:14:49,170 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2022-04-18 19:14:49,171 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2022-04-18 19:14:49,171 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2022-04-18 19:14:49,171 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2022-04-18 19:14:49,171 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2022-04-18 19:14:49,171 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2022-04-18 19:14:49,172 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2022-04-18 19:14:49,172 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2022-04-18 19:14:49,172 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2022-04-18 19:14:49,172 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2022-04-18 19:14:49,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-04-18 19:14:49,379 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 [2022-04-18 19:14:49,384 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-18 19:14:49,385 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:14:49,385 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 19:14:49,438 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:14:49,440 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:14:49,441 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 19:14:49,441 INFO L341 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2022-04-18 19:14:49,444 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:14:49,444 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 282 places, 290 transitions, 592 flow [2022-04-18 19:14:49,444 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 282 places, 290 transitions, 592 flow [2022-04-18 19:14:49,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 282 places, 290 transitions, 592 flow [2022-04-18 19:14:49,509 INFO L129 PetriNetUnfolder]: 15/314 cut-off events. [2022-04-18 19:14:49,510 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 19:14:49,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 314 events. 15/314 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 874 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 263. Up to 6 conditions per place. [2022-04-18 19:14:49,535 INFO L116 LiptonReduction]: Number of co-enabled transitions 38500 [2022-04-18 19:14:55,677 WARN L232 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:15:01,756 WARN L232 SmtUtils]: Spent 6.08s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:15:08,277 WARN L232 SmtUtils]: Spent 6.15s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:15:16,383 WARN L232 SmtUtils]: Spent 8.11s on a formula simplification. DAG size of input: 60 DAG size of output: 57 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:15:41,906 WARN L232 SmtUtils]: Spent 8.22s on a formula simplification. DAG size of input: 59 DAG size of output: 56 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:18:01,963 INFO L131 LiptonReduction]: Checked pairs total: 290281 [2022-04-18 19:18:01,963 INFO L133 LiptonReduction]: Total number of compositions: 322 [2022-04-18 19:18:01,965 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 149 places, 154 transitions, 320 flow [2022-04-18 19:18:02,959 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 28912 states, 27429 states have (on average 3.097232855736629) internal successors, (84954), 28911 states have internal predecessors, (84954), 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 19:18:03,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 28912 states, 27429 states have (on average 3.097232855736629) internal successors, (84954), 28911 states have internal predecessors, (84954), 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 19:18:03,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-04-18 19:18:03,046 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:18:03,046 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-04-18 19:18:03,047 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-04-18 19:18:03,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:18:03,048 INFO L85 PathProgramCache]: Analyzing trace with hash 59143253, now seen corresponding path program 1 times [2022-04-18 19:18:03,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-04-18 19:18:03,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627174260] [2022-04-18 19:18:03,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:18:03,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-04-18 19:18:03,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat [2022-04-18 19:18:03,053 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-04-18 19:18:03,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-04-18 19:18:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:18:03,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2022-04-18 19:18:03,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:18:03,156 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 19:18:03,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 19:18:03,156 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-04-18 19:18:03,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627174260] [2022-04-18 19:18:03,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627174260] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:18:03,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:18:03,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:18:03,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473861235] [2022-04-18 19:18:03,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:18:03,157 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:18:03,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-04-18 19:18:03,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:18:03,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:18:03,230 INFO L87 Difference]: Start difference. First operand has 28912 states, 27429 states have (on average 3.097232855736629) internal successors, (84954), 28911 states have internal predecessors, (84954), 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) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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 19:18:03,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:18:03,844 INFO L93 Difference]: Finished difference Result 14799 states and 42891 transitions. [2022-04-18 19:18:03,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:18:03,845 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-04-18 19:18:03,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:18:03,976 INFO L225 Difference]: With dead ends: 14799 [2022-04-18 19:18:03,976 INFO L226 Difference]: Without dead ends: 14799 [2022-04-18 19:18:03,977 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:18:03,979 INFO L913 BasicCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:18:03,980 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 19:18:04,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14799 states. [2022-04-18 19:18:04,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14799 to 14799. [2022-04-18 19:18:04,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14799 states, 14655 states have (on average 2.9267144319344935) internal successors, (42891), 14798 states have internal predecessors, (42891), 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 19:18:05,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14799 states to 14799 states and 42891 transitions. [2022-04-18 19:18:05,046 INFO L78 Accepts]: Start accepts. Automaton has 14799 states and 42891 transitions. Word has length 4 [2022-04-18 19:18:05,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:18:05,047 INFO L478 AbstractCegarLoop]: Abstraction has 14799 states and 42891 transitions. [2022-04-18 19:18:05,047 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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 19:18:05,047 INFO L276 IsEmpty]: Start isEmpty. Operand 14799 states and 42891 transitions. [2022-04-18 19:18:05,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:18:05,053 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:18:05,053 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-04-18 19:18:05,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-04-18 19:18:05,263 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 [2022-04-18 19:18:05,265 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-04-18 19:18:05,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:18:05,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1002140599, now seen corresponding path program 1 times [2022-04-18 19:18:05,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-04-18 19:18:05,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779374660] [2022-04-18 19:18:05,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:18:05,266 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-04-18 19:18:05,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat [2022-04-18 19:18:05,268 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-04-18 19:18:05,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-04-18 19:18:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:18:05,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-18 19:18:05,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:18:05,418 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 19:18:05,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 19:18:05,419 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-04-18 19:18:05,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779374660] [2022-04-18 19:18:05,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779374660] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:18:05,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:18:05,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:18:05,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845339338] [2022-04-18 19:18:05,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:18:05,420 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:18:05,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-04-18 19:18:05,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:18:05,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:18:05,421 INFO L87 Difference]: Start difference. First operand 14799 states and 42891 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 19:18:06,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:18:06,605 INFO L93 Difference]: Finished difference Result 28171 states and 81689 transitions. [2022-04-18 19:18:06,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:18:06,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-04-18 19:18:06,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:18:06,928 INFO L225 Difference]: With dead ends: 28171 [2022-04-18 19:18:06,928 INFO L226 Difference]: Without dead ends: 28171 [2022-04-18 19:18:06,929 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:18:06,933 INFO L913 BasicCegarLoop]: 75 mSDtfsCounter, 113 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:18:06,935 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 136 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-18 19:18:07,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28171 states. [2022-04-18 19:18:07,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28171 to 15100. [2022-04-18 19:18:07,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15100 states, 14959 states have (on average 2.952536934287051) internal successors, (44167), 15099 states have internal predecessors, (44167), 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 19:18:07,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15100 states to 15100 states and 44167 transitions. [2022-04-18 19:18:07,805 INFO L78 Accepts]: Start accepts. Automaton has 15100 states and 44167 transitions. Word has length 6 [2022-04-18 19:18:07,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:18:07,805 INFO L478 AbstractCegarLoop]: Abstraction has 15100 states and 44167 transitions. [2022-04-18 19:18:07,805 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 19:18:07,806 INFO L276 IsEmpty]: Start isEmpty. Operand 15100 states and 44167 transitions. [2022-04-18 19:18:07,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 19:18:07,807 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:18:07,808 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:18:07,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-04-18 19:18:08,018 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 [2022-04-18 19:18:08,019 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-04-18 19:18:08,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:18:08,019 INFO L85 PathProgramCache]: Analyzing trace with hash 464284723, now seen corresponding path program 1 times [2022-04-18 19:18:08,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-04-18 19:18:08,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758154209] [2022-04-18 19:18:08,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:18:08,020 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-04-18 19:18:08,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat [2022-04-18 19:18:08,021 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-04-18 19:18:08,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-04-18 19:18:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:18:08,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-18 19:18:08,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:18:08,167 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 19:18:08,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 19:18:08,168 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-04-18 19:18:08,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758154209] [2022-04-18 19:18:08,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758154209] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:18:08,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:18:08,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:18:08,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920952160] [2022-04-18 19:18:08,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:18:08,169 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:18:08,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-04-18 19:18:08,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:18:08,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:18:08,169 INFO L87 Difference]: Start difference. First operand 15100 states and 44167 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 19:18:09,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:18:09,100 INFO L93 Difference]: Finished difference Result 15291 states and 44710 transitions. [2022-04-18 19:18:09,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:18:09,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2022-04-18 19:18:09,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:18:09,171 INFO L225 Difference]: With dead ends: 15291 [2022-04-18 19:18:09,172 INFO L226 Difference]: Without dead ends: 15291 [2022-04-18 19:18:09,172 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:18:09,173 INFO L913 BasicCegarLoop]: 104 mSDtfsCounter, 57 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:18:09,173 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 163 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-18 19:18:09,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15291 states. [2022-04-18 19:18:09,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15291 to 15291. [2022-04-18 19:18:09,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15291 states, 15150 states have (on average 2.951155115511551) internal successors, (44710), 15290 states have internal predecessors, (44710), 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 19:18:09,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15291 states to 15291 states and 44710 transitions. [2022-04-18 19:18:09,743 INFO L78 Accepts]: Start accepts. Automaton has 15291 states and 44710 transitions. Word has length 9 [2022-04-18 19:18:09,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:18:09,744 INFO L478 AbstractCegarLoop]: Abstraction has 15291 states and 44710 transitions. [2022-04-18 19:18:09,744 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 19:18:09,744 INFO L276 IsEmpty]: Start isEmpty. Operand 15291 states and 44710 transitions. [2022-04-18 19:18:09,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 19:18:09,745 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:18:09,745 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-04-18 19:18:09,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-04-18 19:18:09,956 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 [2022-04-18 19:18:09,956 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-04-18 19:18:09,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:18:09,957 INFO L85 PathProgramCache]: Analyzing trace with hash 627330620, now seen corresponding path program 1 times [2022-04-18 19:18:09,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-04-18 19:18:09,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002467097] [2022-04-18 19:18:09,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:18:09,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-04-18 19:18:09,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat [2022-04-18 19:18:09,958 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-04-18 19:18:09,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-04-18 19:18:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:18:10,046 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:18:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:18:10,094 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-04-18 19:18:10,095 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:18:10,095 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (78 of 79 remaining) [2022-04-18 19:18:10,095 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (77 of 79 remaining) [2022-04-18 19:18:10,096 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (76 of 79 remaining) [2022-04-18 19:18:10,096 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (75 of 79 remaining) [2022-04-18 19:18:10,096 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (74 of 79 remaining) [2022-04-18 19:18:10,096 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (73 of 79 remaining) [2022-04-18 19:18:10,096 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (72 of 79 remaining) [2022-04-18 19:18:10,096 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (71 of 79 remaining) [2022-04-18 19:18:10,097 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (70 of 79 remaining) [2022-04-18 19:18:10,097 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (69 of 79 remaining) [2022-04-18 19:18:10,097 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (68 of 79 remaining) [2022-04-18 19:18:10,097 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 79 remaining) [2022-04-18 19:18:10,097 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (66 of 79 remaining) [2022-04-18 19:18:10,098 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (65 of 79 remaining) [2022-04-18 19:18:10,098 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (64 of 79 remaining) [2022-04-18 19:18:10,098 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (63 of 79 remaining) [2022-04-18 19:18:10,098 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (62 of 79 remaining) [2022-04-18 19:18:10,098 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (61 of 79 remaining) [2022-04-18 19:18:10,098 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (60 of 79 remaining) [2022-04-18 19:18:10,099 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (59 of 79 remaining) [2022-04-18 19:18:10,099 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (58 of 79 remaining) [2022-04-18 19:18:10,099 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (57 of 79 remaining) [2022-04-18 19:18:10,099 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (56 of 79 remaining) [2022-04-18 19:18:10,099 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (55 of 79 remaining) [2022-04-18 19:18:10,099 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (54 of 79 remaining) [2022-04-18 19:18:10,100 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (53 of 79 remaining) [2022-04-18 19:18:10,100 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (52 of 79 remaining) [2022-04-18 19:18:10,100 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 79 remaining) [2022-04-18 19:18:10,100 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 79 remaining) [2022-04-18 19:18:10,100 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 79 remaining) [2022-04-18 19:18:10,101 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 79 remaining) [2022-04-18 19:18:10,101 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 79 remaining) [2022-04-18 19:18:10,101 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 79 remaining) [2022-04-18 19:18:10,101 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 79 remaining) [2022-04-18 19:18:10,101 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 79 remaining) [2022-04-18 19:18:10,101 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 79 remaining) [2022-04-18 19:18:10,102 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 79 remaining) [2022-04-18 19:18:10,102 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 79 remaining) [2022-04-18 19:18:10,102 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 79 remaining) [2022-04-18 19:18:10,102 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 79 remaining) [2022-04-18 19:18:10,102 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 79 remaining) [2022-04-18 19:18:10,102 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 79 remaining) [2022-04-18 19:18:10,103 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 79 remaining) [2022-04-18 19:18:10,103 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 79 remaining) [2022-04-18 19:18:10,103 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 79 remaining) [2022-04-18 19:18:10,103 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 79 remaining) [2022-04-18 19:18:10,103 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 79 remaining) [2022-04-18 19:18:10,103 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 79 remaining) [2022-04-18 19:18:10,104 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 79 remaining) [2022-04-18 19:18:10,104 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (29 of 79 remaining) [2022-04-18 19:18:10,104 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (28 of 79 remaining) [2022-04-18 19:18:10,104 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (27 of 79 remaining) [2022-04-18 19:18:10,104 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 79 remaining) [2022-04-18 19:18:10,104 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 79 remaining) [2022-04-18 19:18:10,105 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 79 remaining) [2022-04-18 19:18:10,105 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 79 remaining) [2022-04-18 19:18:10,105 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 79 remaining) [2022-04-18 19:18:10,105 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 79 remaining) [2022-04-18 19:18:10,105 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 79 remaining) [2022-04-18 19:18:10,106 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 79 remaining) [2022-04-18 19:18:10,106 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 79 remaining) [2022-04-18 19:18:10,106 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 79 remaining) [2022-04-18 19:18:10,106 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 79 remaining) [2022-04-18 19:18:10,106 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 79 remaining) [2022-04-18 19:18:10,106 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 79 remaining) [2022-04-18 19:18:10,107 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 79 remaining) [2022-04-18 19:18:10,107 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 79 remaining) [2022-04-18 19:18:10,107 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 79 remaining) [2022-04-18 19:18:10,107 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 79 remaining) [2022-04-18 19:18:10,107 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 79 remaining) [2022-04-18 19:18:10,107 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 79 remaining) [2022-04-18 19:18:10,108 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 79 remaining) [2022-04-18 19:18:10,108 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 79 remaining) [2022-04-18 19:18:10,108 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 79 remaining) [2022-04-18 19:18:10,108 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 79 remaining) [2022-04-18 19:18:10,108 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (3 of 79 remaining) [2022-04-18 19:18:10,108 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (2 of 79 remaining) [2022-04-18 19:18:10,109 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (1 of 79 remaining) [2022-04-18 19:18:10,109 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 79 remaining) [2022-04-18 19:18:10,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-04-18 19:18:10,319 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/mathsat -unsat_core_generation=3 [2022-04-18 19:18:10,320 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-04-18 19:18:10,320 WARN L232 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:18:10,320 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-04-18 19:18:10,390 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:18:10,395 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:18:10,396 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 19:18:10,396 INFO L341 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2022-04-18 19:18:10,401 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:18:10,401 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 404 places, 416 transitions, 853 flow [2022-04-18 19:18:10,402 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 404 places, 416 transitions, 853 flow [2022-04-18 19:18:10,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 404 places, 416 transitions, 853 flow [2022-04-18 19:18:10,626 INFO L129 PetriNetUnfolder]: 22/453 cut-off events. [2022-04-18 19:18:10,627 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 19:18:10,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 453 events. 22/453 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1689 event pairs, 0 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 388. Up to 8 conditions per place. [2022-04-18 19:18:10,670 INFO L116 LiptonReduction]: Number of co-enabled transitions 105000 [2022-04-18 19:18:37,014 WARN L232 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 67 DAG size of output: 59 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:20:55,322 INFO L131 LiptonReduction]: Checked pairs total: 819677 [2022-04-18 19:20:55,323 INFO L133 LiptonReduction]: Total number of compositions: 465 [2022-04-18 19:20:55,324 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 218 places, 226 transitions, 473 flow