./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.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/sync01.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 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:14:49,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:14:49,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:14:49,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:14:49,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:14:49,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:14:49,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:14:49,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:14:49,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:14:49,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:14:49,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:14:49,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:14:49,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:14:49,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:14:49,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:14:49,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:14:49,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:14:49,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:14:49,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:14:49,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:14:49,829 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:14:49,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:14:49,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:14:49,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:14:49,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:14:49,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:14:49,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:14:49,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:14:49,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:14:49,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:14:49,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:14:49,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:14:49,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:14:49,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:14:49,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:14:49,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:14:49,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:14:49,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:14:49,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:14:49,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:14:49,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:14:49,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:14:49,846 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:14:49,872 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:14:49,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:14:49,873 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:14:49,873 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:14:49,873 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:14:49,873 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:14:49,874 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:14:49,874 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:14:49,874 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:14:49,874 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:14:49,874 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:14:49,874 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:14:49,875 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:14:49,875 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:14:49,875 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:14:49,875 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:14:49,875 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:14:49,876 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:14:49,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:14:49,877 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:14:49,878 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:14:49,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:14:49,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:14:49,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:14:49,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:14:49,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:14:49,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:14:49,879 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:14:49,879 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:14:49,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:14:49,879 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:14:49,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:14:49,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:14:49,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:14:49,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:14:49,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:14:49,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:14:49,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:14:49,880 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:14:49,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:14:49,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:14:49,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:14:49,881 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:14:49,881 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 [2022-04-18 20:14:50,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:14:50,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:14:50,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:14:50,085 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:14:50,086 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:14:50,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2022-04-18 20:14:50,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fe2d4eeaf/f2df7fd546b948b18a94ba418b4302cc/FLAG231b2c3b7 [2022-04-18 20:14:50,474 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:14:50,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2022-04-18 20:14:50,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fe2d4eeaf/f2df7fd546b948b18a94ba418b4302cc/FLAG231b2c3b7 [2022-04-18 20:14:50,865 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/fe2d4eeaf/f2df7fd546b948b18a94ba418b4302cc [2022-04-18 20:14:50,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:14:50,869 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:14:50,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:14:50,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:14:50,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:14:50,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:14:50" (1/1) ... [2022-04-18 20:14:50,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@675e5292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:50, skipping insertion in model container [2022-04-18 20:14:50,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:14:50" (1/1) ... [2022-04-18 20:14:50,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:14:50,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:14:51,221 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/sync01.i[42004,42017] [2022-04-18 20:14:51,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:14:51,233 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:14:51,257 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/sync01.i[42004,42017] [2022-04-18 20:14:51,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:14:51,292 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:14:51,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:51 WrapperNode [2022-04-18 20:14:51,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:14:51,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:14:51,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:14:51,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:14:51,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:51" (1/1) ... [2022-04-18 20:14:51,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:51" (1/1) ... [2022-04-18 20:14:51,350 INFO L137 Inliner]: procedures = 268, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 89 [2022-04-18 20:14:51,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:14:51,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:14:51,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:14:51,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:14:51,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:51" (1/1) ... [2022-04-18 20:14:51,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:51" (1/1) ... [2022-04-18 20:14:51,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:51" (1/1) ... [2022-04-18 20:14:51,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:51" (1/1) ... [2022-04-18 20:14:51,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:51" (1/1) ... [2022-04-18 20:14:51,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:51" (1/1) ... [2022-04-18 20:14:51,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:51" (1/1) ... [2022-04-18 20:14:51,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:14:51,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:14:51,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:14:51,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:14:51,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:51" (1/1) ... [2022-04-18 20:14:51,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:14:51,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:14:51,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 20:14:51,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 20:14:51,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:14:51,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:14:51,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:14:51,450 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 20:14:51,450 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 20:14:51,450 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 20:14:51,450 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 20:14:51,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:14:51,451 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 20:14:51,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:14:51,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:14:51,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:14:51,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:14:51,452 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 20:14:51,565 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:14:51,567 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:14:51,751 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:14:51,760 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:14:51,760 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 20:14:51,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:14:51 BoogieIcfgContainer [2022-04-18 20:14:51,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:14:51,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:14:51,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:14:51,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:14:51,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:14:50" (1/3) ... [2022-04-18 20:14:51,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640ae968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:14:51, skipping insertion in model container [2022-04-18 20:14:51,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:51" (2/3) ... [2022-04-18 20:14:51,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640ae968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:14:51, skipping insertion in model container [2022-04-18 20:14:51,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:14:51" (3/3) ... [2022-04-18 20:14:51,768 INFO L111 eAbstractionObserver]: Analyzing ICFG sync01.i [2022-04-18 20:14:51,771 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:14:51,772 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:14:51,772 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-04-18 20:14:51,772 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:14:51,827 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 20:14:51,854 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:14:51,859 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 20:14:51,860 INFO L341 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-04-18 20:14:51,870 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:14:51,878 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 148 transitions, 312 flow [2022-04-18 20:14:51,880 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 148 transitions, 312 flow [2022-04-18 20:14:51,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 148 transitions, 312 flow [2022-04-18 20:14:51,919 INFO L129 PetriNetUnfolder]: 5/146 cut-off events. [2022-04-18 20:14:51,921 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 20:14:51,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 146 events. 5/146 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 168 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2022-04-18 20:14:51,930 INFO L116 LiptonReduction]: Number of co-enabled transitions 3068 [2022-04-18 20:14:55,955 INFO L131 LiptonReduction]: Checked pairs total: 12990 [2022-04-18 20:14:55,956 INFO L133 LiptonReduction]: Total number of compositions: 116 [2022-04-18 20:14:55,966 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 51 transitions, 118 flow [2022-04-18 20:14:56,034 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 957 states, 920 states have (on average 2.8195652173913044) internal successors, (2594), 956 states have internal predecessors, (2594), 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 20:14:56,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 957 states, 920 states have (on average 2.8195652173913044) internal successors, (2594), 956 states have internal predecessors, (2594), 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 20:14:56,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 20:14:56,040 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:56,040 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 20:14:56,041 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2022-04-18 20:14:56,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:56,044 INFO L85 PathProgramCache]: Analyzing trace with hash 520, now seen corresponding path program 1 times [2022-04-18 20:14:56,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:56,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879904771] [2022-04-18 20:14:56,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:56,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:56,116 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 20:14:56,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:56,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879904771] [2022-04-18 20:14:56,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879904771] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:56,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:56,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 20:14:56,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576817877] [2022-04-18 20:14:56,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:56,121 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 20:14:56,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:56,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 20:14:56,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 20:14:56,137 INFO L87 Difference]: Start difference. First operand has 957 states, 920 states have (on average 2.8195652173913044) internal successors, (2594), 956 states have internal predecessors, (2594), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 20:14:56,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:56,178 INFO L93 Difference]: Finished difference Result 649 states and 1584 transitions. [2022-04-18 20:14:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 20:14:56,180 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-04-18 20:14:56,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:56,190 INFO L225 Difference]: With dead ends: 649 [2022-04-18 20:14:56,190 INFO L226 Difference]: Without dead ends: 636 [2022-04-18 20:14:56,191 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 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 20:14:56,193 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:56,194 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 20:14:56,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2022-04-18 20:14:56,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 636. [2022-04-18 20:14:56,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 621 states have (on average 2.50402576489533) internal successors, (1555), 635 states have internal predecessors, (1555), 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 20:14:56,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 1555 transitions. [2022-04-18 20:14:56,240 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 1555 transitions. Word has length 1 [2022-04-18 20:14:56,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:56,241 INFO L478 AbstractCegarLoop]: Abstraction has 636 states and 1555 transitions. [2022-04-18 20:14:56,241 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 20:14:56,241 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 1555 transitions. [2022-04-18 20:14:56,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 20:14:56,241 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:56,241 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 20:14:56,241 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 20:14:56,242 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2022-04-18 20:14:56,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:56,242 INFO L85 PathProgramCache]: Analyzing trace with hash 492659236, now seen corresponding path program 1 times [2022-04-18 20:14:56,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:56,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433448650] [2022-04-18 20:14:56,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:56,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:56,337 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 20:14:56,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:56,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433448650] [2022-04-18 20:14:56,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433448650] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:56,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:56,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:56,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424830903] [2022-04-18 20:14:56,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:56,340 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:56,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:56,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:56,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:56,344 INFO L87 Difference]: Start difference. First operand 636 states and 1555 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 20:14:56,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:56,406 INFO L93 Difference]: Finished difference Result 724 states and 1736 transitions. [2022-04-18 20:14:56,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:56,406 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 20:14:56,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:56,409 INFO L225 Difference]: With dead ends: 724 [2022-04-18 20:14:56,409 INFO L226 Difference]: Without dead ends: 724 [2022-04-18 20:14:56,410 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 20:14:56,410 INFO L913 BasicCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:56,411 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 32 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:56,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2022-04-18 20:14:56,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 572. [2022-04-18 20:14:56,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 561 states have (on average 2.4581105169340463) internal successors, (1379), 571 states have internal predecessors, (1379), 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 20:14:56,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 1379 transitions. [2022-04-18 20:14:56,441 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 1379 transitions. Word has length 5 [2022-04-18 20:14:56,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:56,442 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 1379 transitions. [2022-04-18 20:14:56,442 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 20:14:56,442 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 1379 transitions. [2022-04-18 20:14:56,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-18 20:14:56,443 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:56,443 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:56,443 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 20:14:56,444 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2022-04-18 20:14:56,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:56,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1864909219, now seen corresponding path program 1 times [2022-04-18 20:14:56,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:56,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701048364] [2022-04-18 20:14:56,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:56,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:56,493 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 20:14:56,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:56,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701048364] [2022-04-18 20:14:56,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701048364] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:56,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:56,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:56,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114758340] [2022-04-18 20:14:56,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:56,494 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:56,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:56,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:56,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:56,495 INFO L87 Difference]: Start difference. First operand 572 states and 1379 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 20:14:56,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:56,520 INFO L93 Difference]: Finished difference Result 356 states and 824 transitions. [2022-04-18 20:14:56,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:56,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2022-04-18 20:14:56,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:56,521 INFO L225 Difference]: With dead ends: 356 [2022-04-18 20:14:56,521 INFO L226 Difference]: Without dead ends: 336 [2022-04-18 20:14:56,522 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 20:14:56,523 INFO L913 BasicCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:56,523 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 32 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 20:14:56,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-04-18 20:14:56,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 328. [2022-04-18 20:14:56,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 321 states have (on average 2.3551401869158877) internal successors, (756), 327 states have internal predecessors, (756), 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 20:14:56,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 756 transitions. [2022-04-18 20:14:56,529 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 756 transitions. Word has length 12 [2022-04-18 20:14:56,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:56,530 INFO L478 AbstractCegarLoop]: Abstraction has 328 states and 756 transitions. [2022-04-18 20:14:56,530 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 20:14:56,530 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 756 transitions. [2022-04-18 20:14:56,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-18 20:14:56,531 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:56,531 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:56,531 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 20:14:56,531 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2022-04-18 20:14:56,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:56,532 INFO L85 PathProgramCache]: Analyzing trace with hash 968820148, now seen corresponding path program 1 times [2022-04-18 20:14:56,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:56,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901047760] [2022-04-18 20:14:56,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:56,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:56,574 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 20:14:56,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:56,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901047760] [2022-04-18 20:14:56,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901047760] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:56,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:56,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:56,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94988283] [2022-04-18 20:14:56,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:56,578 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:56,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:56,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:56,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:56,579 INFO L87 Difference]: Start difference. First operand 328 states and 756 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 20:14:56,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:56,632 INFO L93 Difference]: Finished difference Result 356 states and 807 transitions. [2022-04-18 20:14:56,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:56,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-04-18 20:14:56,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:56,634 INFO L225 Difference]: With dead ends: 356 [2022-04-18 20:14:56,634 INFO L226 Difference]: Without dead ends: 344 [2022-04-18 20:14:56,635 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 20:14:56,637 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 18 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:56,637 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 32 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 20:14:56,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-04-18 20:14:56,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 326. [2022-04-18 20:14:56,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 321 states have (on average 2.311526479750779) internal successors, (742), 325 states have internal predecessors, (742), 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 20:14:56,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 742 transitions. [2022-04-18 20:14:56,646 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 742 transitions. Word has length 14 [2022-04-18 20:14:56,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:56,647 INFO L478 AbstractCegarLoop]: Abstraction has 326 states and 742 transitions. [2022-04-18 20:14:56,647 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 20:14:56,647 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 742 transitions. [2022-04-18 20:14:56,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 20:14:56,651 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:56,652 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:56,652 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 20:14:56,652 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2022-04-18 20:14:56,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:56,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1735307967, now seen corresponding path program 1 times [2022-04-18 20:14:56,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:56,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720514] [2022-04-18 20:14:56,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:56,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:56,692 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 20:14:56,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:56,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720514] [2022-04-18 20:14:56,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720514] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:56,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:56,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 20:14:56,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210579368] [2022-04-18 20:14:56,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:56,696 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:56,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:56,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:56,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:56,697 INFO L87 Difference]: Start difference. First operand 326 states and 742 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 20:14:56,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:56,716 INFO L93 Difference]: Finished difference Result 90 states and 142 transitions. [2022-04-18 20:14:56,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:56,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2022-04-18 20:14:56,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:56,717 INFO L225 Difference]: With dead ends: 90 [2022-04-18 20:14:56,717 INFO L226 Difference]: Without dead ends: 90 [2022-04-18 20:14:56,718 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 20:14:56,718 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 21 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:56,718 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 17 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 20:14:56,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-04-18 20:14:56,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-04-18 20:14:56,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.595505617977528) internal successors, (142), 89 states have internal predecessors, (142), 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 20:14:56,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 142 transitions. [2022-04-18 20:14:56,720 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 142 transitions. Word has length 16 [2022-04-18 20:14:56,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:56,720 INFO L478 AbstractCegarLoop]: Abstraction has 90 states and 142 transitions. [2022-04-18 20:14:56,720 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 20:14:56,721 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 142 transitions. [2022-04-18 20:14:56,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-04-18 20:14:56,723 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:56,723 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:56,723 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 20:14:56,723 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2022-04-18 20:14:56,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:56,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2002687607, now seen corresponding path program 1 times [2022-04-18 20:14:56,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:56,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53679304] [2022-04-18 20:14:56,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:56,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:56,777 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 20:14:56,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:56,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53679304] [2022-04-18 20:14:56,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53679304] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:56,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:56,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:56,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054288544] [2022-04-18 20:14:56,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:56,779 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:56,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:56,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:56,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:56,779 INFO L87 Difference]: Start difference. First operand 90 states and 142 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 20:14:56,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:56,801 INFO L93 Difference]: Finished difference Result 88 states and 139 transitions. [2022-04-18 20:14:56,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:56,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2022-04-18 20:14:56,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:56,801 INFO L225 Difference]: With dead ends: 88 [2022-04-18 20:14:56,802 INFO L226 Difference]: Without dead ends: 0 [2022-04-18 20:14:56,802 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 20:14:56,802 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:56,803 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 24 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 20:14:56,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-18 20:14:56,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-18 20:14:56,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 20:14:56,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-18 20:14:56,808 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-04-18 20:14:56,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:56,808 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-18 20:14:56,809 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 20:14:56,809 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-18 20:14:56,809 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-18 20:14:56,810 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 18 remaining) [2022-04-18 20:14:56,811 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2022-04-18 20:14:56,811 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2022-04-18 20:14:56,811 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2022-04-18 20:14:56,811 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2022-04-18 20:14:56,811 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2022-04-18 20:14:56,812 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2022-04-18 20:14:56,812 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2022-04-18 20:14:56,812 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2022-04-18 20:14:56,812 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2022-04-18 20:14:56,813 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2022-04-18 20:14:56,813 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2022-04-18 20:14:56,813 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2022-04-18 20:14:56,814 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2022-04-18 20:14:56,814 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2022-04-18 20:14:56,814 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2022-04-18 20:14:56,814 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2022-04-18 20:14:56,814 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2022-04-18 20:14:56,814 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 20:14:56,815 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-04-18 20:14:56,818 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 20:14:56,818 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 20:14:56,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:14:56 BasicIcfg [2022-04-18 20:14:56,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 20:14:56,821 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 20:14:56,821 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 20:14:56,821 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 20:14:56,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:14:51" (3/4) ... [2022-04-18 20:14:56,823 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 20:14:56,827 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 20:14:56,827 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 20:14:56,831 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-04-18 20:14:56,831 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 20:14:56,832 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 20:14:56,832 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 20:14:56,863 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2022-04-18 20:14:56,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 20:14:56,863 INFO L158 Benchmark]: Toolchain (without parser) took 5994.43ms. Allocated memory was 94.4MB in the beginning and 138.4MB in the end (delta: 44.0MB). Free memory was 59.7MB in the beginning and 52.4MB in the end (delta: 7.3MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. [2022-04-18 20:14:56,863 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory was 49.8MB in the beginning and 49.8MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 20:14:56,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.80ms. Allocated memory is still 94.4MB. Free memory was 59.5MB in the beginning and 52.2MB in the end (delta: 7.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-04-18 20:14:56,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.43ms. Allocated memory is still 94.4MB. Free memory was 52.2MB in the beginning and 49.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 20:14:56,864 INFO L158 Benchmark]: Boogie Preprocessor took 43.27ms. Allocated memory is still 94.4MB. Free memory was 49.8MB in the beginning and 48.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 20:14:56,864 INFO L158 Benchmark]: RCFGBuilder took 366.99ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 47.8MB in the beginning and 86.4MB in the end (delta: -38.6MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2022-04-18 20:14:56,864 INFO L158 Benchmark]: TraceAbstraction took 5057.32ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 85.7MB in the beginning and 55.6MB in the end (delta: 30.1MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2022-04-18 20:14:56,865 INFO L158 Benchmark]: Witness Printer took 41.91ms. Allocated memory is still 138.4MB. Free memory was 55.6MB in the beginning and 52.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 20:14:56,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 94.4MB. Free memory was 49.8MB in the beginning and 49.8MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.80ms. Allocated memory is still 94.4MB. Free memory was 59.5MB in the beginning and 52.2MB in the end (delta: 7.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.43ms. Allocated memory is still 94.4MB. Free memory was 52.2MB in the beginning and 49.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.27ms. Allocated memory is still 94.4MB. Free memory was 49.8MB in the beginning and 48.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 366.99ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 47.8MB in the beginning and 86.4MB in the end (delta: -38.6MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5057.32ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 85.7MB in the beginning and 55.6MB in the end (delta: 30.1MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. * Witness Printer took 41.91ms. Allocated memory is still 138.4MB. Free memory was 55.6MB in the beginning and 52.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1s, 150 PlacesBefore, 54 PlacesAfterwards, 148 TransitionsBefore, 51 TransitionsAfterwards, 3068 CoEnabledTransitionPairs, 7 FixpointIterations, 70 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 116 TotalNumberOfCompositions, 12990 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5914, positive: 5505, positive conditional: 0, positive unconditional: 5505, negative: 409, negative conditional: 0, negative unconditional: 409, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2050, positive: 1982, positive conditional: 0, positive unconditional: 1982, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2050, positive: 1947, positive conditional: 0, positive unconditional: 1947, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 103, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 95, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5914, positive: 3523, positive conditional: 0, positive unconditional: 3523, negative: 341, negative conditional: 0, negative unconditional: 341, unknown: 2050, unknown conditional: 0, unknown unconditional: 2050] , Statistics on independence cache: Total cache size (in pairs): 515, Positive cache size: 466, Positive conditional cache size: 0, Positive unconditional cache size: 466, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49 - 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 - PositiveResult [Line: 936]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 938]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 938]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 946]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 948]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 948]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 956]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 962]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 963]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 964]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 196 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 162 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 77 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 220 IncrementalHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 128 mSDtfsCounter, 220 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=957occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 178 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 95 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 20:14:56,899 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 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE