./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/33_double_lock_p1_vs.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/33_double_lock_p1_vs.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 3937112f59473340c79cc2d7ab59a9fe9e4faa83d54303e5490f5452d86b21aa --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:17:17,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:17:17,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:17:17,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:17:17,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:17:17,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:17:17,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:17:17,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:17:17,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:17:17,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:17:17,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:17:17,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:17:17,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:17:17,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:17:17,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:17:17,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:17:17,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:17:17,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:17:17,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:17:17,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:17:17,176 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:17:17,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:17:17,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:17:17,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:17:17,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:17:17,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:17:17,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:17:17,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:17:17,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:17:17,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:17:17,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:17:17,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:17:17,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:17:17,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:17:17,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:17:17,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:17:17,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:17:17,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:17:17,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:17:17,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:17:17,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:17:17,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:17:17,192 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 19:17:17,213 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:17:17,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:17:17,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:17:17,216 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:17:17,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:17:17,216 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:17:17,216 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:17:17,217 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:17:17,217 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:17:17,217 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 19:17:17,217 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:17:17,218 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:17:17,218 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 19:17:17,218 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 19:17:17,218 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:17:17,218 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 19:17:17,218 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 19:17:17,219 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 19:17:17,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:17:17,220 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:17:17,220 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:17:17,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 19:17:17,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:17:17,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:17:17,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:17:17,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:17:17,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:17:17,221 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:17:17,221 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:17:17,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:17:17,222 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:17:17,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:17:17,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:17:17,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:17:17,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:17:17,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:17:17,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:17:17,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:17:17,223 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 19:17:17,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 19:17:17,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:17:17,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:17:17,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:17:17,224 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3937112f59473340c79cc2d7ab59a9fe9e4faa83d54303e5490f5452d86b21aa [2022-04-18 19:17:17,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:17:17,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:17:17,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:17:17,431 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:17:17,431 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:17:17,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/33_double_lock_p1_vs.i [2022-04-18 19:17:17,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/577be1e52/b565f762e55947088b615c0037ca4f9c/FLAGadf161e56 [2022-04-18 19:17:17,884 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:17:17,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/33_double_lock_p1_vs.i [2022-04-18 19:17:17,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/577be1e52/b565f762e55947088b615c0037ca4f9c/FLAGadf161e56 [2022-04-18 19:17:18,237 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/577be1e52/b565f762e55947088b615c0037ca4f9c [2022-04-18 19:17:18,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:17:18,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:17:18,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:17:18,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:17:18,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:17:18,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:17:18" (1/1) ... [2022-04-18 19:17:18,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c82b6e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:18, skipping insertion in model container [2022-04-18 19:17:18,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:17:18" (1/1) ... [2022-04-18 19:17:18,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:17:18,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:17:18,611 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/33_double_lock_p1_vs.i[30807,30820] [2022-04-18 19:17:18,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:17:18,621 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:17:18,661 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/33_double_lock_p1_vs.i[30807,30820] [2022-04-18 19:17:18,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:17:18,696 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:17:18,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:18 WrapperNode [2022-04-18 19:17:18,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:17:18,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:17:18,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:17:18,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:17:18,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:18" (1/1) ... [2022-04-18 19:17:18,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:18" (1/1) ... [2022-04-18 19:17:18,747 INFO L137 Inliner]: procedures = 175, calls = 36, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 281 [2022-04-18 19:17:18,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:17:18,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:17:18,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:17:18,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:17:18,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:18" (1/1) ... [2022-04-18 19:17:18,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:18" (1/1) ... [2022-04-18 19:17:18,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:18" (1/1) ... [2022-04-18 19:17:18,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:18" (1/1) ... [2022-04-18 19:17:18,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:18" (1/1) ... [2022-04-18 19:17:18,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:18" (1/1) ... [2022-04-18 19:17:18,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:18" (1/1) ... [2022-04-18 19:17:18,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:17:18,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:17:18,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:17:18,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:17:18,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:18" (1/1) ... [2022-04-18 19:17:18,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:17:18,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:17:18,853 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 19:17:18,855 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 19:17:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 19:17:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-04-18 19:17:18,897 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-04-18 19:17:18,897 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 19:17:18,898 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 19:17:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 19:17:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:17:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:17:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:17:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 19:17:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:17:18,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:17:18,900 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 19:17:19,008 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:17:19,009 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:17:19,345 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:17:19,508 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:17:19,508 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 19:17:19,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:17:19 BoogieIcfgContainer [2022-04-18 19:17:19,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:17:19,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:17:19,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:17:19,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:17:19,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:17:18" (1/3) ... [2022-04-18 19:17:19,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53051980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:17:19, skipping insertion in model container [2022-04-18 19:17:19,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:17:18" (2/3) ... [2022-04-18 19:17:19,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53051980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:17:19, skipping insertion in model container [2022-04-18 19:17:19,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:17:19" (3/3) ... [2022-04-18 19:17:19,521 INFO L111 eAbstractionObserver]: Analyzing ICFG 33_double_lock_p1_vs.i [2022-04-18 19:17:19,525 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:17:19,525 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:17:19,526 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-04-18 19:17:19,527 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:17:19,581 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:17:19,623 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:17:19,628 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 19:17:19,629 INFO L341 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2022-04-18 19:17:19,638 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:17:19,646 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 108 transitions, 226 flow [2022-04-18 19:17:19,648 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 108 transitions, 226 flow [2022-04-18 19:17:19,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 108 transitions, 226 flow [2022-04-18 19:17:19,695 INFO L129 PetriNetUnfolder]: 7/118 cut-off events. [2022-04-18 19:17:19,695 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:17:19,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 118 events. 7/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 311 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 97. Up to 4 conditions per place. [2022-04-18 19:17:19,701 INFO L116 LiptonReduction]: Number of co-enabled transitions 4188 [2022-04-18 19:19:28,034 INFO L131 LiptonReduction]: Checked pairs total: 13351 [2022-04-18 19:19:28,034 INFO L133 LiptonReduction]: Total number of compositions: 120 [2022-04-18 19:19:28,041 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 54 transitions, 118 flow [2022-04-18 19:19:28,134 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2480 states, 2095 states have (on average 3.341288782816229) internal successors, (7000), 2479 states have internal predecessors, (7000), 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 19:19:28,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 2480 states, 2095 states have (on average 3.341288782816229) internal successors, (7000), 2479 states have internal predecessors, (7000), 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 19:19:28,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-04-18 19:19:28,148 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:19:28,148 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-04-18 19:19:28,149 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-04-18 19:19:28,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:19:28,155 INFO L85 PathProgramCache]: Analyzing trace with hash 32421511, now seen corresponding path program 1 times [2022-04-18 19:19:28,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:19:28,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479463430] [2022-04-18 19:19:28,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:19:28,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:19:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:19:28,282 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 19:19:28,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:19:28,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479463430] [2022-04-18 19:19:28,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479463430] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:19:28,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:19:28,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:19:28,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615580922] [2022-04-18 19:19:28,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:19:28,289 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:19:28,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:19:28,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:19:28,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:19:28,317 INFO L87 Difference]: Start difference. First operand has 2480 states, 2095 states have (on average 3.341288782816229) internal successors, (7000), 2479 states have internal predecessors, (7000), 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 19:19:28,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:19:28,461 INFO L93 Difference]: Finished difference Result 387 states and 1036 transitions. [2022-04-18 19:19:28,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:19:28,466 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 19:19:28,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:19:28,485 INFO L225 Difference]: With dead ends: 387 [2022-04-18 19:19:28,485 INFO L226 Difference]: Without dead ends: 387 [2022-04-18 19:19:28,486 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 19:19:28,490 INFO L913 BasicCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:19:28,492 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:19:28,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-04-18 19:19:28,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2022-04-18 19:19:28,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 385 states have (on average 2.690909090909091) internal successors, (1036), 386 states have internal predecessors, (1036), 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 19:19:28,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 1036 transitions. [2022-04-18 19:19:28,548 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 1036 transitions. Word has length 4 [2022-04-18 19:19:28,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:19:28,548 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 1036 transitions. [2022-04-18 19:19:28,548 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 19:19:28,549 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 1036 transitions. [2022-04-18 19:19:28,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 19:19:28,549 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:19:28,549 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 19:19:28,550 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:19:28,550 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-04-18 19:19:28,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:19:28,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1005068720, now seen corresponding path program 1 times [2022-04-18 19:19:28,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:19:28,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362116464] [2022-04-18 19:19:28,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:19:28,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:19:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:19:28,665 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 19:19:28,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:19:28,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362116464] [2022-04-18 19:19:28,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362116464] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:19:28,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:19:28,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:19:28,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227185940] [2022-04-18 19:19:28,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:19:28,667 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:19:28,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:19:28,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:19:28,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:19:28,668 INFO L87 Difference]: Start difference. First operand 387 states and 1036 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 19:19:28,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:19:28,955 INFO L93 Difference]: Finished difference Result 532 states and 1401 transitions. [2022-04-18 19:19:28,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:19:28,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-04-18 19:19:28,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:19:28,958 INFO L225 Difference]: With dead ends: 532 [2022-04-18 19:19:28,959 INFO L226 Difference]: Without dead ends: 532 [2022-04-18 19:19:28,959 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:19:28,960 INFO L913 BasicCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:19:28,960 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 11 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 19:19:28,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-04-18 19:19:29,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 397. [2022-04-18 19:19:29,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 395 states have (on average 2.6632911392405063) internal successors, (1052), 396 states have internal predecessors, (1052), 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 19:19:29,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 1052 transitions. [2022-04-18 19:19:29,010 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 1052 transitions. Word has length 5 [2022-04-18 19:19:29,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:19:29,010 INFO L478 AbstractCegarLoop]: Abstraction has 397 states and 1052 transitions. [2022-04-18 19:19:29,011 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 19:19:29,011 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 1052 transitions. [2022-04-18 19:19:29,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-04-18 19:19:29,011 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:19:29,012 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-04-18 19:19:29,012 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:19:29,012 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-04-18 19:19:29,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:19:29,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1310370290, now seen corresponding path program 1 times [2022-04-18 19:19:29,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:19:29,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151893597] [2022-04-18 19:19:29,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:19:29,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:19:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:19:29,034 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:19:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:19:29,071 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:19:29,078 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:19:29,079 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 54 remaining) [2022-04-18 19:19:29,083 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2022-04-18 19:19:29,085 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2022-04-18 19:19:29,085 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2022-04-18 19:19:29,085 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2022-04-18 19:19:29,086 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2022-04-18 19:19:29,086 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (47 of 54 remaining) [2022-04-18 19:19:29,086 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2022-04-18 19:19:29,086 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2022-04-18 19:19:29,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2022-04-18 19:19:29,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2022-04-18 19:19:29,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2022-04-18 19:19:29,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2022-04-18 19:19:29,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2022-04-18 19:19:29,087 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2022-04-18 19:19:29,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2022-04-18 19:19:29,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2022-04-18 19:19:29,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2022-04-18 19:19:29,088 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2022-04-18 19:19:29,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2022-04-18 19:19:29,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2022-04-18 19:19:29,089 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2022-04-18 19:19:29,090 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2022-04-18 19:19:29,090 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2022-04-18 19:19:29,090 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2022-04-18 19:19:29,091 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2022-04-18 19:19:29,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2022-04-18 19:19:29,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 54 remaining) [2022-04-18 19:19:29,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2022-04-18 19:19:29,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2022-04-18 19:19:29,092 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2022-04-18 19:19:29,094 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2022-04-18 19:19:29,096 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2022-04-18 19:19:29,096 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2022-04-18 19:19:29,096 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2022-04-18 19:19:29,096 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2022-04-18 19:19:29,097 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2022-04-18 19:19:29,097 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2022-04-18 19:19:29,097 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2022-04-18 19:19:29,097 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2022-04-18 19:19:29,097 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2022-04-18 19:19:29,097 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2022-04-18 19:19:29,097 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2022-04-18 19:19:29,098 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2022-04-18 19:19:29,098 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2022-04-18 19:19:29,098 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2022-04-18 19:19:29,098 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2022-04-18 19:19:29,098 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2022-04-18 19:19:29,098 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2022-04-18 19:19:29,099 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2022-04-18 19:19:29,099 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2022-04-18 19:19:29,099 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2022-04-18 19:19:29,099 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2022-04-18 19:19:29,099 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2022-04-18 19:19:29,099 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 19:19:29,101 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-18 19:19:29,102 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:19:29,102 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 19:19:29,148 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:19:29,149 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:19:29,150 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 19:19:29,150 INFO L341 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2022-04-18 19:19:29,152 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:19:29,152 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 176 transitions, 376 flow [2022-04-18 19:19:29,153 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 176 transitions, 376 flow [2022-04-18 19:19:29,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 175 places, 176 transitions, 376 flow [2022-04-18 19:19:29,187 INFO L129 PetriNetUnfolder]: 9/168 cut-off events. [2022-04-18 19:19:29,187 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 19:19:29,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 168 events. 9/168 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 553 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 177. Up to 6 conditions per place. [2022-04-18 19:19:29,199 INFO L116 LiptonReduction]: Number of co-enabled transitions 10080 [2022-04-18 19:21:39,685 WARN L232 SmtUtils]: Spent 7.00s on a formula simplification. DAG size of input: 164 DAG size of output: 155 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:21:45,128 INFO L131 LiptonReduction]: Checked pairs total: 36471 [2022-04-18 19:21:45,129 INFO L133 LiptonReduction]: Total number of compositions: 240 [2022-04-18 19:21:45,130 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 95 transitions, 214 flow [2022-04-18 19:21:47,120 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 71619 states, 65060 states have (on average 4.241177374731017) internal successors, (275931), 71618 states have internal predecessors, (275931), 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 19:21:47,230 INFO L276 IsEmpty]: Start isEmpty. Operand has 71619 states, 65060 states have (on average 4.241177374731017) internal successors, (275931), 71618 states have internal predecessors, (275931), 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 19:21:47,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-04-18 19:21:47,231 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:21:47,231 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-04-18 19:21:47,231 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-04-18 19:21:47,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:21:47,233 INFO L85 PathProgramCache]: Analyzing trace with hash 47289240, now seen corresponding path program 1 times [2022-04-18 19:21:47,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:21:47,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453644776] [2022-04-18 19:21:47,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:21:47,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:21:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:21:47,272 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 19:21:47,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:21:47,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453644776] [2022-04-18 19:21:47,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453644776] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:21:47,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:21:47,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:21:47,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637499129] [2022-04-18 19:21:47,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:21:47,274 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:21:47,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:21:47,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:21:47,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:21:47,376 INFO L87 Difference]: Start difference. First operand has 71619 states, 65060 states have (on average 4.241177374731017) internal successors, (275931), 71618 states have internal predecessors, (275931), 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 19:21:47,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:21:47,594 INFO L93 Difference]: Finished difference Result 3918 states and 14522 transitions. [2022-04-18 19:21:47,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:21:47,595 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 19:21:47,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:21:47,616 INFO L225 Difference]: With dead ends: 3918 [2022-04-18 19:21:47,617 INFO L226 Difference]: Without dead ends: 3918 [2022-04-18 19:21:47,617 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 19:21:47,618 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:21:47,618 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 19:21:47,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3918 states. [2022-04-18 19:21:47,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3918 to 3918. [2022-04-18 19:21:47,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3918 states, 3916 states have (on average 3.708375893769152) internal successors, (14522), 3917 states have internal predecessors, (14522), 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 19:21:47,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 14522 transitions. [2022-04-18 19:21:47,859 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 14522 transitions. Word has length 4 [2022-04-18 19:21:47,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:21:47,860 INFO L478 AbstractCegarLoop]: Abstraction has 3918 states and 14522 transitions. [2022-04-18 19:21:47,860 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 19:21:47,860 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 14522 transitions. [2022-04-18 19:21:47,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 19:21:47,861 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:21:47,861 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 19:21:47,861 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 19:21:47,863 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-04-18 19:21:47,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:21:47,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1465970170, now seen corresponding path program 1 times [2022-04-18 19:21:47,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:21:47,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886284479] [2022-04-18 19:21:47,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:21:47,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:21:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:21:47,935 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 19:21:47,935 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:21:47,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886284479] [2022-04-18 19:21:47,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886284479] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:21:47,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:21:47,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:21:47,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371040675] [2022-04-18 19:21:47,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:21:47,936 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:21:47,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:21:47,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:21:47,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:21:47,936 INFO L87 Difference]: Start difference. First operand 3918 states and 14522 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 19:21:48,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:21:48,513 INFO L93 Difference]: Finished difference Result 6217 states and 22841 transitions. [2022-04-18 19:21:48,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:21:48,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-04-18 19:21:48,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:21:48,550 INFO L225 Difference]: With dead ends: 6217 [2022-04-18 19:21:48,551 INFO L226 Difference]: Without dead ends: 6217 [2022-04-18 19:21:48,551 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:21:48,555 INFO L913 BasicCegarLoop]: 14 mSDtfsCounter, 22 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:21:48,556 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 21 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 19:21:48,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6217 states. [2022-04-18 19:21:48,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6217 to 4386. [2022-04-18 19:21:48,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4386 states, 4384 states have (on average 3.6875) internal successors, (16166), 4385 states have internal predecessors, (16166), 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 19:21:48,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 16166 transitions. [2022-04-18 19:21:48,849 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 16166 transitions. Word has length 5 [2022-04-18 19:21:48,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:21:48,849 INFO L478 AbstractCegarLoop]: Abstraction has 4386 states and 16166 transitions. [2022-04-18 19:21:48,850 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 19:21:48,851 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 16166 transitions. [2022-04-18 19:21:48,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 19:21:48,852 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:21:48,853 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:21:48,853 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 19:21:48,853 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-04-18 19:21:48,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:21:48,853 INFO L85 PathProgramCache]: Analyzing trace with hash -812712697, now seen corresponding path program 1 times [2022-04-18 19:21:48,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:21:48,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28945784] [2022-04-18 19:21:48,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:21:48,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:21:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:21:48,912 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:21:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:21:48,937 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:21:48,937 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:21:48,937 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (79 of 80 remaining) [2022-04-18 19:21:48,938 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (78 of 80 remaining) [2022-04-18 19:21:48,938 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (77 of 80 remaining) [2022-04-18 19:21:48,938 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (76 of 80 remaining) [2022-04-18 19:21:48,938 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (75 of 80 remaining) [2022-04-18 19:21:48,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (74 of 80 remaining) [2022-04-18 19:21:48,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (73 of 80 remaining) [2022-04-18 19:21:48,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (72 of 80 remaining) [2022-04-18 19:21:48,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (71 of 80 remaining) [2022-04-18 19:21:48,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (70 of 80 remaining) [2022-04-18 19:21:48,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (69 of 80 remaining) [2022-04-18 19:21:48,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (68 of 80 remaining) [2022-04-18 19:21:48,939 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (67 of 80 remaining) [2022-04-18 19:21:48,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (66 of 80 remaining) [2022-04-18 19:21:48,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (65 of 80 remaining) [2022-04-18 19:21:48,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (64 of 80 remaining) [2022-04-18 19:21:48,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (63 of 80 remaining) [2022-04-18 19:21:48,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (62 of 80 remaining) [2022-04-18 19:21:48,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (61 of 80 remaining) [2022-04-18 19:21:48,940 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (60 of 80 remaining) [2022-04-18 19:21:48,941 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (59 of 80 remaining) [2022-04-18 19:21:48,941 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (58 of 80 remaining) [2022-04-18 19:21:48,941 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (57 of 80 remaining) [2022-04-18 19:21:48,941 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (56 of 80 remaining) [2022-04-18 19:21:48,941 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (55 of 80 remaining) [2022-04-18 19:21:48,941 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (54 of 80 remaining) [2022-04-18 19:21:48,941 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (53 of 80 remaining) [2022-04-18 19:21:48,942 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 80 remaining) [2022-04-18 19:21:48,942 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 80 remaining) [2022-04-18 19:21:48,942 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (50 of 80 remaining) [2022-04-18 19:21:48,942 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (49 of 80 remaining) [2022-04-18 19:21:48,943 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (48 of 80 remaining) [2022-04-18 19:21:48,943 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (47 of 80 remaining) [2022-04-18 19:21:48,943 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (46 of 80 remaining) [2022-04-18 19:21:48,943 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (45 of 80 remaining) [2022-04-18 19:21:48,945 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (44 of 80 remaining) [2022-04-18 19:21:48,945 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (43 of 80 remaining) [2022-04-18 19:21:48,945 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (42 of 80 remaining) [2022-04-18 19:21:48,945 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (41 of 80 remaining) [2022-04-18 19:21:48,949 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (40 of 80 remaining) [2022-04-18 19:21:48,949 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (39 of 80 remaining) [2022-04-18 19:21:48,949 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (38 of 80 remaining) [2022-04-18 19:21:48,949 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (37 of 80 remaining) [2022-04-18 19:21:48,949 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (36 of 80 remaining) [2022-04-18 19:21:48,949 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (35 of 80 remaining) [2022-04-18 19:21:48,950 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (34 of 80 remaining) [2022-04-18 19:21:48,950 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (33 of 80 remaining) [2022-04-18 19:21:48,950 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (32 of 80 remaining) [2022-04-18 19:21:48,950 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (31 of 80 remaining) [2022-04-18 19:21:48,950 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (30 of 80 remaining) [2022-04-18 19:21:48,950 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (29 of 80 remaining) [2022-04-18 19:21:48,950 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (28 of 80 remaining) [2022-04-18 19:21:48,950 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (27 of 80 remaining) [2022-04-18 19:21:48,951 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (26 of 80 remaining) [2022-04-18 19:21:48,951 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (25 of 80 remaining) [2022-04-18 19:21:48,951 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (24 of 80 remaining) [2022-04-18 19:21:48,951 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (23 of 80 remaining) [2022-04-18 19:21:48,951 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (22 of 80 remaining) [2022-04-18 19:21:48,951 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (21 of 80 remaining) [2022-04-18 19:21:48,951 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (20 of 80 remaining) [2022-04-18 19:21:48,952 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (19 of 80 remaining) [2022-04-18 19:21:48,952 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 80 remaining) [2022-04-18 19:21:48,952 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 80 remaining) [2022-04-18 19:21:48,952 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 80 remaining) [2022-04-18 19:21:48,952 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 80 remaining) [2022-04-18 19:21:48,952 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 80 remaining) [2022-04-18 19:21:48,952 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (13 of 80 remaining) [2022-04-18 19:21:48,952 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 80 remaining) [2022-04-18 19:21:48,953 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 80 remaining) [2022-04-18 19:21:48,953 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 80 remaining) [2022-04-18 19:21:48,953 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 80 remaining) [2022-04-18 19:21:48,953 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 80 remaining) [2022-04-18 19:21:48,953 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 80 remaining) [2022-04-18 19:21:48,953 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 80 remaining) [2022-04-18 19:21:48,953 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 80 remaining) [2022-04-18 19:21:48,953 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 80 remaining) [2022-04-18 19:21:48,954 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 80 remaining) [2022-04-18 19:21:48,954 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 80 remaining) [2022-04-18 19:21:48,954 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 80 remaining) [2022-04-18 19:21:48,954 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 80 remaining) [2022-04-18 19:21:48,954 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 19:21:48,954 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-18 19:21:48,958 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-04-18 19:21:48,958 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 19:21:48,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:21:48 BasicIcfg [2022-04-18 19:21:48,999 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 19:21:49,000 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 19:21:49,000 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 19:21:49,000 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 19:21:49,000 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:17:19" (3/4) ... [2022-04-18 19:21:49,002 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-04-18 19:21:49,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 19:21:49,004 INFO L158 Benchmark]: Toolchain (without parser) took 270760.10ms. Allocated memory was 121.6MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 94.2MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 305.6MB. Max. memory is 16.1GB. [2022-04-18 19:21:49,005 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory was 75.5MB in the beginning and 75.4MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 19:21:49,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.08ms. Allocated memory was 121.6MB in the beginning and 159.4MB in the end (delta: 37.7MB). Free memory was 93.8MB in the beginning and 122.8MB in the end (delta: -29.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 19:21:49,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.18ms. Allocated memory is still 159.4MB. Free memory was 122.8MB in the beginning and 119.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 19:21:49,005 INFO L158 Benchmark]: Boogie Preprocessor took 61.34ms. Allocated memory is still 159.4MB. Free memory was 119.5MB in the beginning and 116.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 19:21:49,006 INFO L158 Benchmark]: RCFGBuilder took 700.92ms. Allocated memory is still 159.4MB. Free memory was 116.5MB in the beginning and 100.9MB in the end (delta: 15.7MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2022-04-18 19:21:49,006 INFO L158 Benchmark]: TraceAbstraction took 269486.13ms. Allocated memory was 159.4MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 100.2MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 275.0MB. Max. memory is 16.1GB. [2022-04-18 19:21:49,006 INFO L158 Benchmark]: Witness Printer took 4.36ms. Allocated memory is still 1.5GB. Free memory is still 1.2GB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 19:21:49,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory was 75.5MB in the beginning and 75.4MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 452.08ms. Allocated memory was 121.6MB in the beginning and 159.4MB in the end (delta: 37.7MB). Free memory was 93.8MB in the beginning and 122.8MB in the end (delta: -29.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.18ms. Allocated memory is still 159.4MB. Free memory was 122.8MB in the beginning and 119.5MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.34ms. Allocated memory is still 159.4MB. Free memory was 119.5MB in the beginning and 116.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 700.92ms. Allocated memory is still 159.4MB. Free memory was 116.5MB in the beginning and 100.9MB in the end (delta: 15.7MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * TraceAbstraction took 269486.13ms. Allocated memory was 159.4MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 100.2MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 275.0MB. Max. memory is 16.1GB. * Witness Printer took 4.36ms. Allocated memory is still 1.5GB. Free memory is still 1.2GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 128.4s, 108 PlacesBefore, 57 PlacesAfterwards, 108 TransitionsBefore, 54 TransitionsAfterwards, 4188 CoEnabledTransitionPairs, 7 FixpointIterations, 22 TrivialSequentialCompositions, 84 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 120 TotalNumberOfCompositions, 13351 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6802, positive: 6537, positive conditional: 0, positive unconditional: 6537, negative: 265, negative conditional: 0, negative unconditional: 265, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3291, positive: 3234, positive conditional: 0, positive unconditional: 3234, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3291, positive: 2589, positive conditional: 0, positive unconditional: 2589, negative: 702, negative conditional: 0, negative unconditional: 702, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 702, positive: 645, positive conditional: 0, positive unconditional: 645, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 26, unknown conditional: 0, unknown unconditional: 26] , SemanticIndependenceRelation.Query Time [ms]: [ total: 117144, positive: 960, positive conditional: 0, positive unconditional: 960, negative: 459, negative conditional: 0, negative unconditional: 459, unknown: 115725, unknown conditional: 0, unknown unconditional: 115725] ], Cache Queries: [ total: 6802, positive: 3303, positive conditional: 0, positive unconditional: 3303, negative: 208, negative conditional: 0, negative unconditional: 208, unknown: 3291, unknown conditional: 0, unknown unconditional: 3291] , Statistics on independence cache: Total cache size (in pairs): 421, Positive cache size: 395, Positive conditional cache size: 0, Positive unconditional cache size: 395, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - 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 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 136.0s, 175 PlacesBefore, 100 PlacesAfterwards, 176 TransitionsBefore, 95 TransitionsAfterwards, 10080 CoEnabledTransitionPairs, 6 FixpointIterations, 59 TrivialSequentialCompositions, 157 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 14 ConcurrentYvCompositions, 6 ChoiceCompositions, 240 TotalNumberOfCompositions, 36471 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18405, positive: 18052, positive conditional: 0, positive unconditional: 18052, negative: 353, negative conditional: 0, negative unconditional: 353, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7856, positive: 7755, positive conditional: 0, positive unconditional: 7755, negative: 101, negative conditional: 0, negative unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7856, positive: 6013, positive conditional: 0, positive unconditional: 6013, negative: 1843, negative conditional: 0, negative unconditional: 1843, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1843, positive: 1742, positive conditional: 0, positive unconditional: 1742, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83814, positive: 1068, positive conditional: 0, positive unconditional: 1068, negative: 852, negative conditional: 0, negative unconditional: 852, unknown: 81894, unknown conditional: 0, unknown unconditional: 81894] ], Cache Queries: [ total: 18405, positive: 10297, positive conditional: 0, positive unconditional: 10297, negative: 252, negative conditional: 0, negative unconditional: 252, unknown: 7856, unknown conditional: 0, unknown unconditional: 7856] , Statistics on independence cache: Total cache size (in pairs): 1006, Positive cache size: 963, Positive conditional cache size: 0, Positive unconditional cache size: 963, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 729]: Data race detected Data race detected The following path leads to a data race: [L689] 0 int count = 0; [L708] 0 int mutexa = 0; [L709] 0 int mutexb = 0; [L747] 0 pthread_t t; [L748] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [count=0, mutexa={3:0}, mutexb={4:0}, pthread_create(&t, 0, thr1, 0)=-2, t={5:0}] [L726] COND TRUE 1 1 [L728] CALL 1 __VERIFIER_atomic_acquire(&mutexa) [L692] EXPR 1 \read(*m) [L692] EXPR 1 *m==0 [L692] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L692] RET 1 assume_abort_if_not(*m==0) [L693] 1 *m = 1 [L728] RET 1 __VERIFIER_atomic_acquire(&mutexa) [L729] 1 count >= -1 VAL [arg={0:0}, arg={0:0}, count=0, mutexa={3:0}, mutexb={4:0}] [L749] COND TRUE 0 1 [L751] FCALL, FORK 0 pthread_create(&t, 0, thr2, 0) VAL [count=0, mutexa={3:0}, mutexb={4:0}, pthread_create(&t, 0, thr2, 0)=-1, t={5:0}] [L739] COND FALSE 2 !(__VERIFIER_nondet_int()) [L742] CALL 2 my_thread2() [L719] CALL 2 __VERIFIER_atomic_acquire(&mutexb) [L692] EXPR 2 \read(*m) [L692] EXPR 2 *m==0 [L692] CALL 2 assume_abort_if_not(*m==0) [L4] COND FALSE 2 !(!cond) [L692] RET 2 assume_abort_if_not(*m==0) [L693] 2 *m = 1 [L719] RET 2 __VERIFIER_atomic_acquire(&mutexb) [L720] CALL 2 __VERIFIER_atomic_dec() [L706] 2 count-- [L720] RET 2 __VERIFIER_atomic_dec() [L729] 1 count >= -1 VAL [arg={0:0}, arg={0:0}, count=-1, mutexa={3:0}, mutexb={4:0}] Now there is a data race on ~count~0 between C: count-- [706] and C: count >= -1 [729] - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 731]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 751]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 167 locations, 54 error locations. Started 1 CEGAR loops. OverallTime: 129.5s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 128.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 15 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2480occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 135 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 230 locations, 80 error locations. Started 1 CEGAR loops. OverallTime: 139.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 138.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 25 mSDtfsCounter, 108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71619occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 2 MinimizatonAttempts, 1831 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-04-18 19:21:49,283 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-04-18 19:21:49,390 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 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE