./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_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/36-apron_21-traces-cluster-based_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 cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:45:28,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:45:28,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:45:28,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:45:28,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:45:28,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:45:28,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:45:28,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:45:28,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:45:28,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:45:28,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:45:28,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:45:28,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:45:28,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:45:28,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:45:28,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:45:28,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:45:28,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:45:28,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:45:28,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:45:28,567 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:45:28,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:45:28,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:45:28,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:45:28,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:45:28,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:45:28,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:45:28,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:45:28,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:45:28,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:45:28,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:45:28,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:45:28,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:45:28,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:45:28,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:45:28,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:45:28,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:45:28,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:45:28,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:45:28,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:45:28,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:45:28,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:45:28,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:45:28,603 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:45:28,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:45:28,603 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:45:28,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:45:28,604 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:45:28,604 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:45:28,604 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:45:28,604 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:45:28,605 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:45:28,605 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:45:28,605 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:45:28,606 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:45:28,606 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:45:28,606 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:45:28,606 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:45:28,606 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:45:28,606 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:45:28,606 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:45:28,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:45:28,607 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:45:28,608 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:45:28,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:45:28,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:45:28,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:45:28,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:45:28,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:45:28,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:45:28,609 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:45:28,609 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:45:28,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:45:28,609 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:45:28,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:45:28,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:45:28,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:45:28,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:45:28,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:45:28,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:45:28,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:45:28,610 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:45:28,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:45:28,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:45:28,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:45:28,611 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:45:28,611 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cec155e54548239c459fec40910e358deb5fad2ceffa658bfdeefddd1bc9e166 [2022-04-18 18:45:28,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:45:28,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:45:28,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:45:28,801 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:45:28,802 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:45:28,803 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2022-04-18 18:45:28,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/872f14594/85671e330b944b8b9724c27faadc60e7/FLAG70e5332d5 [2022-04-18 18:45:29,195 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:45:29,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2022-04-18 18:45:29,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/872f14594/85671e330b944b8b9724c27faadc60e7/FLAG70e5332d5 [2022-04-18 18:45:29,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/872f14594/85671e330b944b8b9724c27faadc60e7 [2022-04-18 18:45:29,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:45:29,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:45:29,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:45:29,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:45:29,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:45:29,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:45:29" (1/1) ... [2022-04-18 18:45:29,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c4b8bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:45:29, skipping insertion in model container [2022-04-18 18:45:29,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:45:29" (1/1) ... [2022-04-18 18:45:29,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:45:29,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:45:29,769 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/36-apron_21-traces-cluster-based_true.i[1092,1105] [2022-04-18 18:45:29,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:45:29,895 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:45:29,902 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/36-apron_21-traces-cluster-based_true.i[1092,1105] [2022-04-18 18:45:29,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:45:29,946 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:45:29,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:45:29 WrapperNode [2022-04-18 18:45:29,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:45:29,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:45:29,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:45:29,948 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:45:29,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:45:29" (1/1) ... [2022-04-18 18:45:29,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:45:29" (1/1) ... [2022-04-18 18:45:30,002 INFO L137 Inliner]: procedures = 165, calls = 45, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 141 [2022-04-18 18:45:30,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:45:30,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:45:30,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:45:30,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:45:30,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:45:29" (1/1) ... [2022-04-18 18:45:30,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:45:29" (1/1) ... [2022-04-18 18:45:30,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:45:29" (1/1) ... [2022-04-18 18:45:30,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:45:29" (1/1) ... [2022-04-18 18:45:30,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:45:29" (1/1) ... [2022-04-18 18:45:30,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:45:29" (1/1) ... [2022-04-18 18:45:30,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:45:29" (1/1) ... [2022-04-18 18:45:30,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:45:30,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:45:30,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:45:30,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:45:30,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:45:29" (1/1) ... [2022-04-18 18:45:30,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:45:30,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:45:30,104 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 18:45:30,127 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 18:45:30,161 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-04-18 18:45:30,161 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-04-18 18:45:30,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:45:30,161 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:45:30,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:45:30,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:45:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-04-18 18:45:30,162 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-04-18 18:45:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-04-18 18:45:30,162 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-04-18 18:45:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:45:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:45:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:45:30,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:45:30,163 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 18:45:30,282 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:45:30,283 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:45:30,496 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:45:30,503 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:45:30,508 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 18:45:30,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:45:30 BoogieIcfgContainer [2022-04-18 18:45:30,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:45:30,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:45:30,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:45:30,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:45:30,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:45:29" (1/3) ... [2022-04-18 18:45:30,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4026ca24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:45:30, skipping insertion in model container [2022-04-18 18:45:30,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:45:29" (2/3) ... [2022-04-18 18:45:30,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4026ca24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:45:30, skipping insertion in model container [2022-04-18 18:45:30,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:45:30" (3/3) ... [2022-04-18 18:45:30,526 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_21-traces-cluster-based_true.i [2022-04-18 18:45:30,529 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:45:30,529 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:45:30,529 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-04-18 18:45:30,529 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:45:30,625 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 18:45:30,653 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:45:30,658 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 18:45:30,658 INFO L341 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-04-18 18:45:30,668 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:45:30,676 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 201 places, 196 transitions, 407 flow [2022-04-18 18:45:30,678 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 201 places, 196 transitions, 407 flow [2022-04-18 18:45:30,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 201 places, 196 transitions, 407 flow [2022-04-18 18:45:30,727 INFO L129 PetriNetUnfolder]: 5/193 cut-off events. [2022-04-18 18:45:30,728 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 18:45:30,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 193 events. 5/193 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 387 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 156. Up to 2 conditions per place. [2022-04-18 18:45:30,747 INFO L116 LiptonReduction]: Number of co-enabled transitions 15762 [2022-04-18 18:45:34,695 INFO L131 LiptonReduction]: Checked pairs total: 51271 [2022-04-18 18:45:34,696 INFO L133 LiptonReduction]: Total number of compositions: 155 [2022-04-18 18:45:34,705 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 62 transitions, 139 flow [2022-04-18 18:45:35,710 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 35599 states, 35492 states have (on average 3.751634171080807) internal successors, (133153), 35598 states have internal predecessors, (133153), 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 18:45:35,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 35599 states, 35492 states have (on average 3.751634171080807) internal successors, (133153), 35598 states have internal predecessors, (133153), 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 18:45:35,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-04-18 18:45:35,763 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:45:35,763 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:45:35,764 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 18:45:35,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:45:35,768 INFO L85 PathProgramCache]: Analyzing trace with hash -115544083, now seen corresponding path program 1 times [2022-04-18 18:45:35,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:45:35,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447739114] [2022-04-18 18:45:35,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:45:35,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:45:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:45:35,961 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 18:45:35,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:45:35,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447739114] [2022-04-18 18:45:35,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447739114] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:45:35,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:45:35,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:45:35,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300981557] [2022-04-18 18:45:35,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:45:35,968 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:45:35,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:45:35,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:45:35,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:45:36,036 INFO L87 Difference]: Start difference. First operand has 35599 states, 35492 states have (on average 3.751634171080807) internal successors, (133153), 35598 states have internal predecessors, (133153), 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 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 18:45:37,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:45:37,394 INFO L93 Difference]: Finished difference Result 61320 states and 220644 transitions. [2022-04-18 18:45:37,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:45:37,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-04-18 18:45:37,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:45:38,042 INFO L225 Difference]: With dead ends: 61320 [2022-04-18 18:45:38,042 INFO L226 Difference]: Without dead ends: 61320 [2022-04-18 18:45:38,043 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:45:38,045 INFO L913 BasicCegarLoop]: 39 mSDtfsCounter, 48 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 18:45:38,047 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 61 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 18:45:38,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61320 states. [2022-04-18 18:45:39,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61320 to 40230. [2022-04-18 18:45:39,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40230 states, 40123 states have (on average 3.712758268324901) internal successors, (148967), 40229 states have internal predecessors, (148967), 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 18:45:40,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40230 states to 40230 states and 148967 transitions. [2022-04-18 18:45:40,047 INFO L78 Accepts]: Start accepts. Automaton has 40230 states and 148967 transitions. Word has length 7 [2022-04-18 18:45:40,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:45:40,048 INFO L478 AbstractCegarLoop]: Abstraction has 40230 states and 148967 transitions. [2022-04-18 18:45:40,048 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 18:45:40,049 INFO L276 IsEmpty]: Start isEmpty. Operand 40230 states and 148967 transitions. [2022-04-18 18:45:40,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-04-18 18:45:40,049 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:45:40,049 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:45:40,049 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 18:45:40,049 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 18:45:40,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:45:40,050 INFO L85 PathProgramCache]: Analyzing trace with hash -111914196, now seen corresponding path program 1 times [2022-04-18 18:45:40,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:45:40,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427333933] [2022-04-18 18:45:40,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:45:40,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:45:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:45:40,102 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 18:45:40,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:45:40,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427333933] [2022-04-18 18:45:40,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427333933] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:45:40,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:45:40,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:45:40,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033542451] [2022-04-18 18:45:40,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:45:40,104 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:45:40,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:45:40,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:45:40,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:45:40,105 INFO L87 Difference]: Start difference. First operand 40230 states and 148967 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 18:45:40,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:45:40,610 INFO L93 Difference]: Finished difference Result 43397 states and 159602 transitions. [2022-04-18 18:45:40,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:45:40,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-04-18 18:45:40,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:45:40,808 INFO L225 Difference]: With dead ends: 43397 [2022-04-18 18:45:40,809 INFO L226 Difference]: Without dead ends: 43397 [2022-04-18 18:45:40,810 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:45:40,811 INFO L913 BasicCegarLoop]: 48 mSDtfsCounter, 36 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:45:40,811 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 70 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:45:40,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43397 states. [2022-04-18 18:45:42,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43397 to 41558. [2022-04-18 18:45:42,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41558 states, 41452 states have (on average 3.6944176396796293) internal successors, (153141), 41557 states have internal predecessors, (153141), 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 18:45:42,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41558 states to 41558 states and 153141 transitions. [2022-04-18 18:45:42,428 INFO L78 Accepts]: Start accepts. Automaton has 41558 states and 153141 transitions. Word has length 7 [2022-04-18 18:45:42,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:45:42,428 INFO L478 AbstractCegarLoop]: Abstraction has 41558 states and 153141 transitions. [2022-04-18 18:45:42,429 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 18:45:42,429 INFO L276 IsEmpty]: Start isEmpty. Operand 41558 states and 153141 transitions. [2022-04-18 18:45:42,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 18:45:42,430 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:45:42,430 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:45:42,430 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 18:45:42,431 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 18:45:42,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:45:42,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1904521701, now seen corresponding path program 1 times [2022-04-18 18:45:42,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:45:42,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596430075] [2022-04-18 18:45:42,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:45:42,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:45:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:45:42,512 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 18:45:42,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:45:42,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596430075] [2022-04-18 18:45:42,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596430075] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:45:42,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:45:42,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:45:42,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012226300] [2022-04-18 18:45:42,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:45:42,514 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:45:42,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:45:42,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:45:42,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:45:42,515 INFO L87 Difference]: Start difference. First operand 41558 states and 153141 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 18:45:42,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:45:42,911 INFO L93 Difference]: Finished difference Result 56951 states and 203627 transitions. [2022-04-18 18:45:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:45:42,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 18:45:42,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:45:43,191 INFO L225 Difference]: With dead ends: 56951 [2022-04-18 18:45:43,191 INFO L226 Difference]: Without dead ends: 52016 [2022-04-18 18:45:43,192 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:45:43,194 INFO L913 BasicCegarLoop]: 51 mSDtfsCounter, 47 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:45:43,195 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 73 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:45:43,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52016 states. [2022-04-18 18:45:44,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52016 to 40069. [2022-04-18 18:45:44,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40069 states, 39982 states have (on average 3.5784102846280827) internal successors, (143072), 40068 states have internal predecessors, (143072), 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 18:45:44,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40069 states to 40069 states and 143072 transitions. [2022-04-18 18:45:44,684 INFO L78 Accepts]: Start accepts. Automaton has 40069 states and 143072 transitions. Word has length 10 [2022-04-18 18:45:44,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:45:44,685 INFO L478 AbstractCegarLoop]: Abstraction has 40069 states and 143072 transitions. [2022-04-18 18:45:44,685 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 18:45:44,685 INFO L276 IsEmpty]: Start isEmpty. Operand 40069 states and 143072 transitions. [2022-04-18 18:45:44,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 18:45:44,686 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:45:44,686 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:45:44,686 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 18:45:44,686 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 18:45:44,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:45:44,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1140603179, now seen corresponding path program 1 times [2022-04-18 18:45:44,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:45:44,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742981102] [2022-04-18 18:45:44,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:45:44,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:45:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:45:44,711 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 18:45:44,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:45:44,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742981102] [2022-04-18 18:45:44,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742981102] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:45:44,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:45:44,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:45:44,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529741763] [2022-04-18 18:45:44,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:45:44,713 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:45:44,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:45:44,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:45:44,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:45:44,713 INFO L87 Difference]: Start difference. First operand 40069 states and 143072 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 18:45:44,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:45:44,953 INFO L93 Difference]: Finished difference Result 40554 states and 144082 transitions. [2022-04-18 18:45:44,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:45:44,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 18:45:44,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:45:45,412 INFO L225 Difference]: With dead ends: 40554 [2022-04-18 18:45:45,412 INFO L226 Difference]: Without dead ends: 40554 [2022-04-18 18:45:45,412 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:45:45,413 INFO L913 BasicCegarLoop]: 49 mSDtfsCounter, 35 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:45:45,413 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 71 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:45:45,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40554 states. [2022-04-18 18:45:46,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40554 to 40554. [2022-04-18 18:45:46,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40554 states, 40475 states have (on average 3.559777640518839) internal successors, (144082), 40553 states have internal predecessors, (144082), 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 18:45:46,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40554 states to 40554 states and 144082 transitions. [2022-04-18 18:45:46,486 INFO L78 Accepts]: Start accepts. Automaton has 40554 states and 144082 transitions. Word has length 10 [2022-04-18 18:45:46,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:45:46,486 INFO L478 AbstractCegarLoop]: Abstraction has 40554 states and 144082 transitions. [2022-04-18 18:45:46,486 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 18:45:46,487 INFO L276 IsEmpty]: Start isEmpty. Operand 40554 states and 144082 transitions. [2022-04-18 18:45:46,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 18:45:46,490 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:45:46,490 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:45:46,490 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 18:45:46,491 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 18:45:46,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:45:46,494 INFO L85 PathProgramCache]: Analyzing trace with hash -509527273, now seen corresponding path program 1 times [2022-04-18 18:45:46,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:45:46,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150496110] [2022-04-18 18:45:46,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:45:46,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:45:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:45:46,580 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 18:45:46,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:45:46,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150496110] [2022-04-18 18:45:46,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150496110] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:45:46,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:45:46,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:45:46,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504731637] [2022-04-18 18:45:46,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:45:46,582 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:45:46,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:45:46,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:45:46,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:45:46,583 INFO L87 Difference]: Start difference. First operand 40554 states and 144082 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 18:45:46,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:45:46,645 INFO L93 Difference]: Finished difference Result 3652 states and 7719 transitions. [2022-04-18 18:45:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:45:46,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-04-18 18:45:46,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:45:46,651 INFO L225 Difference]: With dead ends: 3652 [2022-04-18 18:45:46,651 INFO L226 Difference]: Without dead ends: 3652 [2022-04-18 18:45:46,651 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:45:46,652 INFO L913 BasicCegarLoop]: 30 mSDtfsCounter, 39 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:45:46,652 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 58 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:45:46,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3652 states. [2022-04-18 18:45:46,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3652 to 3404. [2022-04-18 18:45:46,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3404 states, 3374 states have (on average 2.1671606401896857) internal successors, (7312), 3403 states have internal predecessors, (7312), 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 18:45:46,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 7312 transitions. [2022-04-18 18:45:46,696 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 7312 transitions. Word has length 11 [2022-04-18 18:45:46,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:45:46,696 INFO L478 AbstractCegarLoop]: Abstraction has 3404 states and 7312 transitions. [2022-04-18 18:45:46,696 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 18:45:46,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 7312 transitions. [2022-04-18 18:45:46,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-18 18:45:46,697 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:45:46,697 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:45:46,697 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 18:45:46,697 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 18:45:46,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:45:46,698 INFO L85 PathProgramCache]: Analyzing trace with hash -24697286, now seen corresponding path program 1 times [2022-04-18 18:45:46,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:45:46,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559435293] [2022-04-18 18:45:46,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:45:46,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:45:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:45:46,720 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 18:45:46,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:45:46,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559435293] [2022-04-18 18:45:46,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559435293] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:45:46,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:45:46,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:45:46,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039531283] [2022-04-18 18:45:46,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:45:46,721 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:45:46,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:45:46,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:45:46,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:45:46,722 INFO L87 Difference]: Start difference. First operand 3404 states and 7312 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 18:45:46,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:45:46,774 INFO L93 Difference]: Finished difference Result 3365 states and 7182 transitions. [2022-04-18 18:45:46,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:45:46,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2022-04-18 18:45:46,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:45:46,778 INFO L225 Difference]: With dead ends: 3365 [2022-04-18 18:45:46,779 INFO L226 Difference]: Without dead ends: 2887 [2022-04-18 18:45:46,779 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:45:46,779 INFO L913 BasicCegarLoop]: 52 mSDtfsCounter, 35 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:45:46,780 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 74 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:45:46,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2022-04-18 18:45:46,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 2887. [2022-04-18 18:45:46,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2887 states, 2878 states have (on average 2.112925642807505) internal successors, (6081), 2886 states have internal predecessors, (6081), 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 18:45:46,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2887 states to 2887 states and 6081 transitions. [2022-04-18 18:45:46,812 INFO L78 Accepts]: Start accepts. Automaton has 2887 states and 6081 transitions. Word has length 15 [2022-04-18 18:45:46,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:45:46,813 INFO L478 AbstractCegarLoop]: Abstraction has 2887 states and 6081 transitions. [2022-04-18 18:45:46,813 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 18:45:46,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2887 states and 6081 transitions. [2022-04-18 18:45:46,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-18 18:45:46,814 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:45:46,814 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] [2022-04-18 18:45:46,814 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 18:45:46,815 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 18:45:46,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:45:46,815 INFO L85 PathProgramCache]: Analyzing trace with hash -883949902, now seen corresponding path program 1 times [2022-04-18 18:45:46,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:45:46,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834084547] [2022-04-18 18:45:46,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:45:46,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:45:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:45:46,848 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 18:45:46,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:45:46,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834084547] [2022-04-18 18:45:46,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834084547] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:45:46,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:45:46,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:45:46,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102665331] [2022-04-18 18:45:46,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:45:46,851 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:45:46,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:45:46,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:45:46,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:45:46,851 INFO L87 Difference]: Start difference. First operand 2887 states and 6081 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 18:45:46,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:45:46,910 INFO L93 Difference]: Finished difference Result 3968 states and 8089 transitions. [2022-04-18 18:45:46,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:45:46,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2022-04-18 18:45:46,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:45:46,915 INFO L225 Difference]: With dead ends: 3968 [2022-04-18 18:45:46,915 INFO L226 Difference]: Without dead ends: 3902 [2022-04-18 18:45:46,916 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:45:46,921 INFO L913 BasicCegarLoop]: 43 mSDtfsCounter, 37 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:45:46,922 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 71 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:45:46,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3902 states. [2022-04-18 18:45:46,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3902 to 3168. [2022-04-18 18:45:46,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3168 states, 3155 states have (on average 2.056418383518225) internal successors, (6488), 3167 states have internal predecessors, (6488), 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 18:45:46,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3168 states to 3168 states and 6488 transitions. [2022-04-18 18:45:46,979 INFO L78 Accepts]: Start accepts. Automaton has 3168 states and 6488 transitions. Word has length 23 [2022-04-18 18:45:46,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:45:46,979 INFO L478 AbstractCegarLoop]: Abstraction has 3168 states and 6488 transitions. [2022-04-18 18:45:46,980 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 18:45:46,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3168 states and 6488 transitions. [2022-04-18 18:45:46,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-18 18:45:46,981 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:45:46,981 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] [2022-04-18 18:45:46,981 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 18:45:46,981 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t3_funErr0ASSERT_VIOLATIONDATA_RACE, t3_funErr1ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-04-18 18:45:46,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:45:46,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1270536286, now seen corresponding path program 2 times [2022-04-18 18:45:46,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:45:46,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890134232] [2022-04-18 18:45:46,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:45:46,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:45:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:45:47,059 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 18:45:47,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:45:47,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890134232] [2022-04-18 18:45:47,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890134232] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:45:47,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:45:47,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 18:45:47,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035042709] [2022-04-18 18:45:47,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:45:47,061 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 18:45:47,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:45:47,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 18:45:47,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-18 18:45:47,061 INFO L87 Difference]: Start difference. First operand 3168 states and 6488 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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 18:45:47,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:45:47,102 INFO L93 Difference]: Finished difference Result 641 states and 990 transitions. [2022-04-18 18:45:47,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-18 18:45:47,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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 23 [2022-04-18 18:45:47,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:45:47,103 INFO L225 Difference]: With dead ends: 641 [2022-04-18 18:45:47,103 INFO L226 Difference]: Without dead ends: 0 [2022-04-18 18:45:47,103 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-18 18:45:47,104 INFO L913 BasicCegarLoop]: 19 mSDtfsCounter, 34 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:45:47,104 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 19 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:45:47,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-18 18:45:47,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-18 18:45:47,105 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 18:45:47,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-18 18:45:47,105 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2022-04-18 18:45:47,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:45:47,105 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-18 18:45:47,105 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 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 18:45:47,105 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-18 18:45:47,106 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-18 18:45:47,107 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (18 of 19 remaining) [2022-04-18 18:45:47,108 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2022-04-18 18:45:47,108 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2022-04-18 18:45:47,108 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t3_funErr1ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2022-04-18 18:45:47,108 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2022-04-18 18:45:47,108 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2022-04-18 18:45:47,108 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2022-04-18 18:45:47,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 19 remaining) [2022-04-18 18:45:47,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 19 remaining) [2022-04-18 18:45:47,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2022-04-18 18:45:47,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2022-04-18 18:45:47,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2022-04-18 18:45:47,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2022-04-18 18:45:47,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2022-04-18 18:45:47,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t3_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2022-04-18 18:45:47,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t3_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2022-04-18 18:45:47,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2022-04-18 18:45:47,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2022-04-18 18:45:47,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2022-04-18 18:45:47,110 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 18:45:47,112 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-04-18 18:45:47,114 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 18:45:47,114 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 18:45:47,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 06:45:47 BasicIcfg [2022-04-18 18:45:47,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 18:45:47,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 18:45:47,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 18:45:47,117 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 18:45:47,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:45:30" (3/4) ... [2022-04-18 18:45:47,119 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 18:45:47,122 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-04-18 18:45:47,123 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t3_fun [2022-04-18 18:45:47,123 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-04-18 18:45:47,125 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-04-18 18:45:47,126 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 18:45:47,126 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 18:45:47,126 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 18:45:47,146 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2022-04-18 18:45:47,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 18:45:47,147 INFO L158 Benchmark]: Toolchain (without parser) took 17559.43ms. Allocated memory was 96.5MB in the beginning and 11.1GB in the end (delta: 11.0GB). Free memory was 63.6MB in the beginning and 9.7GB in the end (delta: -9.6GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-04-18 18:45:47,147 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory was 53.6MB in the beginning and 53.5MB in the end (delta: 31.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 18:45:47,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.87ms. Allocated memory is still 96.5MB. Free memory was 63.4MB in the beginning and 62.7MB in the end (delta: 711.1kB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-04-18 18:45:47,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.76ms. Allocated memory is still 96.5MB. Free memory was 62.7MB in the beginning and 60.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 18:45:47,148 INFO L158 Benchmark]: Boogie Preprocessor took 48.16ms. Allocated memory is still 96.5MB. Free memory was 60.3MB in the beginning and 58.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 18:45:47,148 INFO L158 Benchmark]: RCFGBuilder took 457.15ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 58.8MB in the beginning and 89.6MB in the end (delta: -30.8MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2022-04-18 18:45:47,148 INFO L158 Benchmark]: TraceAbstraction took 16605.42ms. Allocated memory was 117.4MB in the beginning and 11.1GB in the end (delta: 11.0GB). Free memory was 89.2MB in the beginning and 9.7GB in the end (delta: -9.6GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-04-18 18:45:47,149 INFO L158 Benchmark]: Witness Printer took 29.73ms. Allocated memory is still 11.1GB. Free memory was 9.7GB in the beginning and 9.7GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 18:45:47,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory was 53.6MB in the beginning and 53.5MB in the end (delta: 31.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.87ms. Allocated memory is still 96.5MB. Free memory was 63.4MB in the beginning and 62.7MB in the end (delta: 711.1kB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.76ms. Allocated memory is still 96.5MB. Free memory was 62.7MB in the beginning and 60.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.16ms. Allocated memory is still 96.5MB. Free memory was 60.3MB in the beginning and 58.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 457.15ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 58.8MB in the beginning and 89.6MB in the end (delta: -30.8MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * TraceAbstraction took 16605.42ms. Allocated memory was 117.4MB in the beginning and 11.1GB in the end (delta: 11.0GB). Free memory was 89.2MB in the beginning and 9.7GB in the end (delta: -9.6GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 29.73ms. Allocated memory is still 11.1GB. Free memory was 9.7GB in the beginning and 9.7GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 201 PlacesBefore, 71 PlacesAfterwards, 196 TransitionsBefore, 62 TransitionsAfterwards, 15762 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 94 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 4 ChoiceCompositions, 155 TotalNumberOfCompositions, 51271 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21102, positive: 20360, positive conditional: 0, positive unconditional: 20360, negative: 742, negative conditional: 0, negative unconditional: 742, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11153, positive: 10982, positive conditional: 0, positive unconditional: 10982, negative: 171, negative conditional: 0, negative unconditional: 171, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11153, positive: 10864, positive conditional: 0, positive unconditional: 10864, negative: 289, negative conditional: 0, negative unconditional: 289, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 289, positive: 118, positive conditional: 0, positive unconditional: 118, negative: 171, negative conditional: 0, negative unconditional: 171, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 283, positive: 103, positive conditional: 0, positive unconditional: 103, negative: 180, negative conditional: 0, negative unconditional: 180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21102, positive: 9378, positive conditional: 0, positive unconditional: 9378, negative: 571, negative conditional: 0, negative unconditional: 571, unknown: 11153, unknown conditional: 0, unknown unconditional: 11153] , Statistics on independence cache: Total cache size (in pairs): 1274, Positive cache size: 1187, Positive conditional cache size: 0, Positive unconditional cache size: 1187, Negative cache size: 87, Negative conditional cache size: 0, Negative unconditional cache size: 87 - 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: 705]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 716]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 717]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 732]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 692]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: 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 7 procedures, 291 locations, 19 error locations. Started 1 CEGAR loops. OverallTime: 16.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 311 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 311 mSDsluCounter, 497 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 311 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 609 IncrementalHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 331 mSDtfsCounter, 609 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41558occurred in iteration=2, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 35858 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 18:45:47,189 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