./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.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/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.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 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:41:58,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:41:58,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:41:58,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:41:58,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:41:58,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:41:58,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:41:58,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:41:58,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:41:58,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:41:58,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:41:58,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:41:58,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:41:58,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:41:58,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:41:58,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:41:58,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:41:58,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:41:58,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:41:58,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:41:58,649 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:41:58,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:41:58,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:41:58,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:41:58,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:41:58,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:41:58,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:41:58,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:41:58,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:41:58,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:41:58,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:41:58,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:41:58,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:41:58,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:41:58,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:41:58,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:41:58,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:41:58,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:41:58,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:41:58,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:41:58,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:41:58,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:41:58,668 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:41:58,693 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:41:58,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:41:58,694 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:41:58,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:41:58,695 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:41:58,695 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:41:58,695 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:41:58,695 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:41:58,695 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:41:58,696 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:41:58,696 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:41:58,696 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:41:58,696 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:41:58,697 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:41:58,697 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:41:58,697 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:41:58,698 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:41:58,698 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:41:58,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:41:58,700 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:41:58,700 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:41:58,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:41:58,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:41:58,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:41:58,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:41:58,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:41:58,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:41:58,701 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:41:58,701 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:41:58,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:41:58,702 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:41:58,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:41:58,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:41:58,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:41:58,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:41:58,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:41:58,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:41:58,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:41:58,703 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:41:58,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:41:58,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:41:58,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:41:58,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:41:58,704 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2022-04-18 18:41:58,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:41:58,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:41:58,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:41:58,921 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:41:58,922 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:41:58,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2022-04-18 18:41:58,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e4b03d419/733fb548a3e84c619d92189a8fe19290/FLAGe96dfb928 [2022-04-18 18:41:59,356 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:41:59,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2022-04-18 18:41:59,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e4b03d419/733fb548a3e84c619d92189a8fe19290/FLAGe96dfb928 [2022-04-18 18:41:59,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e4b03d419/733fb548a3e84c619d92189a8fe19290 [2022-04-18 18:41:59,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:41:59,376 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:41:59,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:41:59,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:41:59,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:41:59,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:41:59" (1/1) ... [2022-04-18 18:41:59,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c43874e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:59, skipping insertion in model container [2022-04-18 18:41:59,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:41:59" (1/1) ... [2022-04-18 18:41:59,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:41:59,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:41:59,570 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2022-04-18 18:41:59,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:41:59,727 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:41:59,738 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i[1115,1128] [2022-04-18 18:41:59,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:41:59,815 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:41:59,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:59 WrapperNode [2022-04-18 18:41:59,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:41:59,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:41:59,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:41:59,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:41:59,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:59" (1/1) ... [2022-04-18 18:41:59,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:59" (1/1) ... [2022-04-18 18:41:59,867 INFO L137 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 174 [2022-04-18 18:41:59,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:41:59,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:41:59,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:41:59,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:41:59,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:59" (1/1) ... [2022-04-18 18:41:59,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:59" (1/1) ... [2022-04-18 18:41:59,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:59" (1/1) ... [2022-04-18 18:41:59,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:59" (1/1) ... [2022-04-18 18:41:59,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:59" (1/1) ... [2022-04-18 18:41:59,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:59" (1/1) ... [2022-04-18 18:41:59,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:59" (1/1) ... [2022-04-18 18:41:59,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:41:59,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:41:59,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:41:59,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:41:59,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:59" (1/1) ... [2022-04-18 18:41:59,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:41:59,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:41:59,923 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 18:41:59,943 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 18:41:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:41:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-04-18 18:41:59,975 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-04-18 18:41:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:41:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:41:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:41:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:41:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:41:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:41:59,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:41:59,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:41:59,977 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 18:42:00,085 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:42:00,087 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:42:00,369 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:42:00,375 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:42:00,379 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 18:42:00,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:42:00 BoogieIcfgContainer [2022-04-18 18:42:00,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:42:00,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:42:00,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:42:00,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:42:00,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:41:59" (1/3) ... [2022-04-18 18:42:00,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b0cc0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:42:00, skipping insertion in model container [2022-04-18 18:42:00,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:59" (2/3) ... [2022-04-18 18:42:00,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b0cc0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:42:00, skipping insertion in model container [2022-04-18 18:42:00,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:42:00" (3/3) ... [2022-04-18 18:42:00,388 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2022-04-18 18:42:00,393 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:42:00,393 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:42:00,393 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-04-18 18:42:00,394 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:42:00,460 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 18:42:00,499 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:42:00,506 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 18:42:00,506 INFO L341 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-04-18 18:42:00,518 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:42:00,526 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 200 places, 206 transitions, 417 flow [2022-04-18 18:42:00,531 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 200 places, 206 transitions, 417 flow [2022-04-18 18:42:00,532 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 200 places, 206 transitions, 417 flow [2022-04-18 18:42:00,624 INFO L129 PetriNetUnfolder]: 10/205 cut-off events. [2022-04-18 18:42:00,625 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 18:42:00,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 205 events. 10/205 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 352 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 156. Up to 2 conditions per place. [2022-04-18 18:42:00,635 INFO L116 LiptonReduction]: Number of co-enabled transitions 11368 [2022-04-18 18:42:05,793 INFO L131 LiptonReduction]: Checked pairs total: 92613 [2022-04-18 18:42:05,793 INFO L133 LiptonReduction]: Total number of compositions: 169 [2022-04-18 18:42:05,799 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 83 transitions, 171 flow [2022-04-18 18:42:05,842 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1224 states, 1196 states have (on average 2.1923076923076925) internal successors, (2622), 1223 states have internal predecessors, (2622), 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 18:42:05,845 INFO L276 IsEmpty]: Start isEmpty. Operand has 1224 states, 1196 states have (on average 2.1923076923076925) internal successors, (2622), 1223 states have internal predecessors, (2622), 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 18:42:05,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 18:42:05,848 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:42:05,848 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 18:42:05,849 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2022-04-18 18:42:05,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:42:05,852 INFO L85 PathProgramCache]: Analyzing trace with hash 746, now seen corresponding path program 1 times [2022-04-18 18:42:05,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:42:05,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697665417] [2022-04-18 18:42:05,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:42:05,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:42:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:42:05,943 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 18:42:05,943 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:42:05,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697665417] [2022-04-18 18:42:05,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697665417] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:42:05,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:42:05,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 18:42:05,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054407669] [2022-04-18 18:42:05,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:42:05,948 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 18:42:05,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:42:05,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 18:42:05,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 18:42:05,968 INFO L87 Difference]: Start difference. First operand has 1224 states, 1196 states have (on average 2.1923076923076925) internal successors, (2622), 1223 states have internal predecessors, (2622), 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 18:42:06,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:42:06,030 INFO L93 Difference]: Finished difference Result 1198 states and 2492 transitions. [2022-04-18 18:42:06,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 18:42:06,031 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 18:42:06,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:42:06,058 INFO L225 Difference]: With dead ends: 1198 [2022-04-18 18:42:06,058 INFO L226 Difference]: Without dead ends: 1198 [2022-04-18 18:42:06,059 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 18:42:06,061 INFO L913 BasicCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:42:06,061 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:42:06,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2022-04-18 18:42:06,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1198. [2022-04-18 18:42:06,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 1174 states have (on average 2.122657580919932) internal successors, (2492), 1197 states have internal predecessors, (2492), 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 18:42:06,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 2492 transitions. [2022-04-18 18:42:06,150 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 2492 transitions. Word has length 1 [2022-04-18 18:42:06,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:42:06,150 INFO L478 AbstractCegarLoop]: Abstraction has 1198 states and 2492 transitions. [2022-04-18 18:42:06,151 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 18:42:06,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 2492 transitions. [2022-04-18 18:42:06,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 18:42:06,151 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:42:06,152 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:42:06,152 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 18:42:06,152 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2022-04-18 18:42:06,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:42:06,153 INFO L85 PathProgramCache]: Analyzing trace with hash -575491905, now seen corresponding path program 1 times [2022-04-18 18:42:06,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:42:06,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155274403] [2022-04-18 18:42:06,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:42:06,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:42:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:42:06,336 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 18:42:06,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:42:06,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155274403] [2022-04-18 18:42:06,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155274403] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:42:06,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:42:06,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 18:42:06,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467232755] [2022-04-18 18:42:06,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:42:06,341 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 18:42:06,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:42:06,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 18:42:06,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 18:42:06,346 INFO L87 Difference]: Start difference. First operand 1198 states and 2492 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 18:42:06,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:42:06,709 INFO L93 Difference]: Finished difference Result 2424 states and 5043 transitions. [2022-04-18 18:42:06,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 18:42:06,710 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2022-04-18 18:42:06,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:42:06,719 INFO L225 Difference]: With dead ends: 2424 [2022-04-18 18:42:06,719 INFO L226 Difference]: Without dead ends: 2424 [2022-04-18 18:42:06,721 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 18:42:06,722 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 102 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 18:42:06,723 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 29 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 18:42:06,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2022-04-18 18:42:06,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 1693. [2022-04-18 18:42:06,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1669 states have (on average 2.128220491312163) internal successors, (3552), 1692 states have internal predecessors, (3552), 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 18:42:06,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 3552 transitions. [2022-04-18 18:42:06,774 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 3552 transitions. Word has length 10 [2022-04-18 18:42:06,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:42:06,774 INFO L478 AbstractCegarLoop]: Abstraction has 1693 states and 3552 transitions. [2022-04-18 18:42:06,775 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 18:42:06,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 3552 transitions. [2022-04-18 18:42:06,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 18:42:06,778 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:42:06,778 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:42:06,778 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 18:42:06,778 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2022-04-18 18:42:06,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:42:06,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1479793558, now seen corresponding path program 1 times [2022-04-18 18:42:06,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:42:06,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526697618] [2022-04-18 18:42:06,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:42:06,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:42:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:42:06,869 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 18:42:06,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:42:06,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526697618] [2022-04-18 18:42:06,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526697618] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:42:06,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:42:06,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 18:42:06,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432732224] [2022-04-18 18:42:06,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:42:06,870 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 18:42:06,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:42:06,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 18:42:06,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 18:42:06,871 INFO L87 Difference]: Start difference. First operand 1693 states and 3552 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 18:42:07,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:42:07,381 INFO L93 Difference]: Finished difference Result 2413 states and 5068 transitions. [2022-04-18 18:42:07,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 18:42:07,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2022-04-18 18:42:07,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:42:07,391 INFO L225 Difference]: With dead ends: 2413 [2022-04-18 18:42:07,391 INFO L226 Difference]: Without dead ends: 2413 [2022-04-18 18:42:07,391 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 18:42:07,392 INFO L913 BasicCegarLoop]: 51 mSDtfsCounter, 110 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 18:42:07,393 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 69 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 18:42:07,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2022-04-18 18:42:07,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 1961. [2022-04-18 18:42:07,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1947 states have (on average 2.126348228043143) internal successors, (4140), 1960 states have internal predecessors, (4140), 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 18:42:07,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 4140 transitions. [2022-04-18 18:42:07,470 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 4140 transitions. Word has length 10 [2022-04-18 18:42:07,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:42:07,470 INFO L478 AbstractCegarLoop]: Abstraction has 1961 states and 4140 transitions. [2022-04-18 18:42:07,470 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 18:42:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 4140 transitions. [2022-04-18 18:42:07,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 18:42:07,472 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:42:07,473 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] [2022-04-18 18:42:07,473 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 18:42:07,473 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2022-04-18 18:42:07,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:42:07,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1464471084, now seen corresponding path program 1 times [2022-04-18 18:42:07,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:42:07,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403610433] [2022-04-18 18:42:07,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:42:07,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:42:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:42:07,591 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 18:42:07,591 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:42:07,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403610433] [2022-04-18 18:42:07,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403610433] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:42:07,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:42:07,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 18:42:07,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278780253] [2022-04-18 18:42:07,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:42:07,592 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 18:42:07,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:42:07,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 18:42:07,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 18:42:07,593 INFO L87 Difference]: Start difference. First operand 1961 states and 4140 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 18:42:08,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:42:08,019 INFO L93 Difference]: Finished difference Result 2195 states and 4620 transitions. [2022-04-18 18:42:08,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 18:42:08,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 22 [2022-04-18 18:42:08,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:42:08,026 INFO L225 Difference]: With dead ends: 2195 [2022-04-18 18:42:08,026 INFO L226 Difference]: Without dead ends: 2195 [2022-04-18 18:42:08,027 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 18:42:08,027 INFO L913 BasicCegarLoop]: 54 mSDtfsCounter, 98 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 18:42:08,028 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 75 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 18:42:08,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2022-04-18 18:42:08,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 2135. [2022-04-18 18:42:08,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2135 states, 2121 states have (on average 2.11975483262612) internal successors, (4496), 2134 states have internal predecessors, (4496), 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 18:42:08,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 4496 transitions. [2022-04-18 18:42:08,064 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 4496 transitions. Word has length 22 [2022-04-18 18:42:08,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:42:08,064 INFO L478 AbstractCegarLoop]: Abstraction has 2135 states and 4496 transitions. [2022-04-18 18:42:08,064 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 18:42:08,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 4496 transitions. [2022-04-18 18:42:08,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-18 18:42:08,066 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:42:08,066 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, 1] [2022-04-18 18:42:08,066 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 18:42:08,067 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2022-04-18 18:42:08,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:42:08,067 INFO L85 PathProgramCache]: Analyzing trace with hash -275526603, now seen corresponding path program 1 times [2022-04-18 18:42:08,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:42:08,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487336669] [2022-04-18 18:42:08,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:42:08,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:42:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:42:08,175 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 18:42:08,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:42:08,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487336669] [2022-04-18 18:42:08,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487336669] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:42:08,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:42:08,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:42:08,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151143091] [2022-04-18 18:42:08,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:42:08,176 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 18:42:08,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:42:08,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 18:42:08,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-04-18 18:42:08,177 INFO L87 Difference]: Start difference. First operand 2135 states and 4496 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 18:42:08,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:42:08,264 INFO L93 Difference]: Finished difference Result 3355 states and 7024 transitions. [2022-04-18 18:42:08,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-18 18:42:08,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2022-04-18 18:42:08,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:42:08,275 INFO L225 Difference]: With dead ends: 3355 [2022-04-18 18:42:08,276 INFO L226 Difference]: Without dead ends: 3355 [2022-04-18 18:42:08,276 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-04-18 18:42:08,276 INFO L913 BasicCegarLoop]: 59 mSDtfsCounter, 140 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:42:08,277 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 91 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:42:08,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-04-18 18:42:08,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 2155. [2022-04-18 18:42:08,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 2141 states have (on average 2.109761793554414) internal successors, (4517), 2154 states have internal predecessors, (4517), 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 18:42:08,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 4517 transitions. [2022-04-18 18:42:08,319 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 4517 transitions. Word has length 26 [2022-04-18 18:42:08,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:42:08,319 INFO L478 AbstractCegarLoop]: Abstraction has 2155 states and 4517 transitions. [2022-04-18 18:42:08,319 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 18:42:08,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 4517 transitions. [2022-04-18 18:42:08,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-18 18:42:08,320 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:42:08,320 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, 1] [2022-04-18 18:42:08,321 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 18:42:08,321 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2022-04-18 18:42:08,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:42:08,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1355352126, now seen corresponding path program 1 times [2022-04-18 18:42:08,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:42:08,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783762841] [2022-04-18 18:42:08,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:42:08,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:42:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:42:08,369 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 18:42:08,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:42:08,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783762841] [2022-04-18 18:42:08,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783762841] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:42:08,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:42:08,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:42:08,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661973375] [2022-04-18 18:42:08,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:42:08,370 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 18:42:08,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:42:08,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 18:42:08,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-04-18 18:42:08,371 INFO L87 Difference]: Start difference. First operand 2155 states and 4517 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 18:42:08,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:42:08,426 INFO L93 Difference]: Finished difference Result 165 states and 277 transitions. [2022-04-18 18:42:08,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-18 18:42:08,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2022-04-18 18:42:08,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:42:08,428 INFO L225 Difference]: With dead ends: 165 [2022-04-18 18:42:08,428 INFO L226 Difference]: Without dead ends: 165 [2022-04-18 18:42:08,428 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-04-18 18:42:08,429 INFO L913 BasicCegarLoop]: 13 mSDtfsCounter, 65 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:42:08,429 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 26 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:42:08,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-04-18 18:42:08,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-04-18 18:42:08,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 1.6890243902439024) internal successors, (277), 164 states have internal predecessors, (277), 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 18:42:08,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 277 transitions. [2022-04-18 18:42:08,432 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 277 transitions. Word has length 26 [2022-04-18 18:42:08,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:42:08,433 INFO L478 AbstractCegarLoop]: Abstraction has 165 states and 277 transitions. [2022-04-18 18:42:08,433 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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 18:42:08,433 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 277 transitions. [2022-04-18 18:42:08,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-04-18 18:42:08,434 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:42:08,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:42:08,434 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 18:42:08,434 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2022-04-18 18:42:08,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:42:08,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1291406417, now seen corresponding path program 1 times [2022-04-18 18:42:08,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:42:08,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756058020] [2022-04-18 18:42:08,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:42:08,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:42:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:42:08,503 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 18:42:08,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:42:08,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756058020] [2022-04-18 18:42:08,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756058020] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:42:08,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:42:08,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 18:42:08,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556224623] [2022-04-18 18:42:08,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:42:08,504 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 18:42:08,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:42:08,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 18:42:08,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 18:42:08,505 INFO L87 Difference]: Start difference. First operand 165 states and 277 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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 18:42:08,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:42:08,596 INFO L93 Difference]: Finished difference Result 162 states and 272 transitions. [2022-04-18 18:42:08,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 18:42:08,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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 34 [2022-04-18 18:42:08,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:42:08,597 INFO L225 Difference]: With dead ends: 162 [2022-04-18 18:42:08,597 INFO L226 Difference]: Without dead ends: 0 [2022-04-18 18:42:08,598 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 18:42:08,598 INFO L913 BasicCegarLoop]: 35 mSDtfsCounter, 10 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:42:08,598 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 37 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:42:08,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-18 18:42:08,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-18 18:42:08,599 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 18:42:08,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-18 18:42:08,599 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2022-04-18 18:42:08,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:42:08,599 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-18 18:42:08,599 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 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 18:42:08,599 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-18 18:42:08,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-18 18:42:08,601 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 17 remaining) [2022-04-18 18:42:08,601 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2022-04-18 18:42:08,601 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2022-04-18 18:42:08,601 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2022-04-18 18:42:08,601 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 17 remaining) [2022-04-18 18:42:08,602 INFO L788 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2022-04-18 18:42:08,602 INFO L788 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2022-04-18 18:42:08,608 INFO L788 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2022-04-18 18:42:08,608 INFO L788 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2022-04-18 18:42:08,608 INFO L788 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2022-04-18 18:42:08,608 INFO L788 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2022-04-18 18:42:08,608 INFO L788 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2022-04-18 18:42:08,609 INFO L788 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2022-04-18 18:42:08,609 INFO L788 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2022-04-18 18:42:08,609 INFO L788 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2022-04-18 18:42:08,609 INFO L788 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2022-04-18 18:42:08,609 INFO L788 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2022-04-18 18:42:08,609 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 18:42:08,611 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:42:08,614 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 18:42:08,614 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 18:42:08,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 06:42:08 BasicIcfg [2022-04-18 18:42:08,616 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 18:42:08,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 18:42:08,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 18:42:08,616 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 18:42:08,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:42:00" (3/4) ... [2022-04-18 18:42:08,618 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 18:42:08,622 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2022-04-18 18:42:08,624 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-04-18 18:42:08,625 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-04-18 18:42:08,625 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 18:42:08,625 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 18:42:08,645 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2022-04-18 18:42:08,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 18:42:08,645 INFO L158 Benchmark]: Toolchain (without parser) took 9269.41ms. Allocated memory was 86.0MB in the beginning and 192.9MB in the end (delta: 107.0MB). Free memory was 49.2MB in the beginning and 153.0MB in the end (delta: -103.8MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2022-04-18 18:42:08,646 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 86.0MB. Free memory was 55.4MB in the beginning and 55.4MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 18:42:08,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.92ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 48.9MB in the beginning and 82.0MB in the end (delta: -33.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-04-18 18:42:08,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.37ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 78.6MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 18:42:08,646 INFO L158 Benchmark]: Boogie Preprocessor took 32.65ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 18:42:08,646 INFO L158 Benchmark]: RCFGBuilder took 479.94ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 56.9MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-04-18 18:42:08,647 INFO L158 Benchmark]: TraceAbstraction took 8233.16ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 56.2MB in the beginning and 156.2MB in the end (delta: -100.0MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2022-04-18 18:42:08,647 INFO L158 Benchmark]: Witness Printer took 28.90ms. Allocated memory is still 192.9MB. Free memory was 156.2MB in the beginning and 153.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 18:42:08,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 86.0MB. Free memory was 55.4MB in the beginning and 55.4MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.92ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 48.9MB in the beginning and 82.0MB in the end (delta: -33.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.37ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 78.6MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.65ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 479.94ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 56.9MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8233.16ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 56.2MB in the beginning and 156.2MB in the end (delta: -100.0MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. * Witness Printer took 28.90ms. Allocated memory is still 192.9MB. Free memory was 156.2MB in the beginning and 153.0MB in the end (delta: 3.2MB). 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: 5.3s, 200 PlacesBefore, 79 PlacesAfterwards, 206 TransitionsBefore, 83 TransitionsAfterwards, 11368 CoEnabledTransitionPairs, 16 FixpointIterations, 51 TrivialSequentialCompositions, 83 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 33 ConcurrentYvCompositions, 2 ChoiceCompositions, 169 TotalNumberOfCompositions, 92613 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 19736, positive: 17555, positive conditional: 0, positive unconditional: 17555, negative: 2181, negative conditional: 0, negative unconditional: 2181, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7307, positive: 7131, positive conditional: 0, positive unconditional: 7131, negative: 176, negative conditional: 0, negative unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7307, positive: 6640, positive conditional: 0, positive unconditional: 6640, negative: 667, negative conditional: 0, negative unconditional: 667, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 667, positive: 491, positive conditional: 0, positive unconditional: 491, negative: 176, negative conditional: 0, negative unconditional: 176, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 613, positive: 371, positive conditional: 0, positive unconditional: 371, negative: 243, negative conditional: 0, negative unconditional: 243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19736, positive: 10424, positive conditional: 0, positive unconditional: 10424, negative: 2005, negative conditional: 0, negative unconditional: 2005, unknown: 7307, unknown conditional: 0, unknown unconditional: 7307] , Statistics on independence cache: Total cache size (in pairs): 803, Positive cache size: 683, Positive conditional cache size: 0, Positive unconditional cache size: 683, Negative cache size: 120, Negative conditional cache size: 0, Negative unconditional cache size: 120 - 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: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 726]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: 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 3 procedures, 290 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 8.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 525 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 525 mSDsluCounter, 374 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 283 mSDsCounter, 261 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2160 IncrementalHoareTripleChecker+Invalid, 2421 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 261 mSolverCounterUnsat, 286 mSDtfsCounter, 2160 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2155occurred in iteration=5, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 2443 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 862 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 18:42:08,682 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