./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.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 f58af1aa15d4bec1241042c84c595fb9585ff7c461dd0b44f9fde0638838779a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:13:44,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:13:44,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:13:44,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:13:44,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:13:44,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:13:44,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:13:44,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:13:44,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:13:44,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:13:44,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:13:44,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:13:44,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:13:44,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:13:44,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:13:44,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:13:44,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:13:44,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:13:44,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:13:44,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:13:44,819 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:13:44,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:13:44,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:13:44,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:13:44,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:13:44,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:13:44,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:13:44,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:13:44,829 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:13:44,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:13:44,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:13:44,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:13:44,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:13:44,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:13:44,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:13:44,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:13:44,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:13:44,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:13:44,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:13:44,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:13:44,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:13:44,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:13:44,838 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:13:44,859 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:13:44,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:13:44,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:13:44,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:13:44,861 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:13:44,861 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:13:44,861 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:13:44,861 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:13:44,862 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:13:44,862 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:13:44,862 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:13:44,862 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:13:44,863 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:13:44,863 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:13:44,863 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:13:44,863 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:13:44,863 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:13:44,863 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:13:44,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:13:44,864 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:13:44,865 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:13:44,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:13:44,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:13:44,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:13:44,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:13:44,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:13:44,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:13:44,866 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:13:44,866 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:13:44,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:13:44,866 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:13:44,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:13:44,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:13:44,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:13:44,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:13:44,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:13:44,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:13:44,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:13:44,867 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:13:44,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:13:44,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:13:44,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:13:44,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:13:44,868 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f58af1aa15d4bec1241042c84c595fb9585ff7c461dd0b44f9fde0638838779a [2022-04-18 20:13:45,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:13:45,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:13:45,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:13:45,093 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:13:45,094 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:13:45,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.i [2022-04-18 20:13:45,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a6b031adf/26a35488c5124465a005a9c5c078b240/FLAG1a02b7ce8 [2022-04-18 20:13:45,575 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:13:45,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.i [2022-04-18 20:13:45,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a6b031adf/26a35488c5124465a005a9c5c078b240/FLAG1a02b7ce8 [2022-04-18 20:13:45,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a6b031adf/26a35488c5124465a005a9c5c078b240 [2022-04-18 20:13:45,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:13:45,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:13:45,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:13:45,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:13:45,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:13:45,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:13:45" (1/1) ... [2022-04-18 20:13:45,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a21ec9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:45, skipping insertion in model container [2022-04-18 20:13:45,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:13:45" (1/1) ... [2022-04-18 20:13:45,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:13:45,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:13:45,963 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.i[43272,43285] [2022-04-18 20:13:45,965 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.i[43545,43558] [2022-04-18 20:13:45,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:13:45,981 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:13:46,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.i[43272,43285] [2022-04-18 20:13:46,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok_longer.i[43545,43558] [2022-04-18 20:13:46,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:13:46,082 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:13:46,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:46 WrapperNode [2022-04-18 20:13:46,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:13:46,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:13:46,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:13:46,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:13:46,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:46" (1/1) ... [2022-04-18 20:13:46,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:46" (1/1) ... [2022-04-18 20:13:46,183 INFO L137 Inliner]: procedures = 274, calls = 59, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 389 [2022-04-18 20:13:46,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:13:46,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:13:46,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:13:46,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:13:46,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:46" (1/1) ... [2022-04-18 20:13:46,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:46" (1/1) ... [2022-04-18 20:13:46,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:46" (1/1) ... [2022-04-18 20:13:46,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:46" (1/1) ... [2022-04-18 20:13:46,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:46" (1/1) ... [2022-04-18 20:13:46,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:46" (1/1) ... [2022-04-18 20:13:46,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:46" (1/1) ... [2022-04-18 20:13:46,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:13:46,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:13:46,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:13:46,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:13:46,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:46" (1/1) ... [2022-04-18 20:13:46,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:13:46,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:13:46,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 20:13:46,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 20:13:46,359 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-04-18 20:13:46,361 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-04-18 20:13:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-04-18 20:13:46,361 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-04-18 20:13:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:13:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:13:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:13:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:13:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 20:13:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:13:46,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:13:46,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:13:46,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:13:46,363 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 20:13:46,483 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:13:46,485 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:13:46,919 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:13:46,927 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:13:46,928 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 20:13:46,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:13:46 BoogieIcfgContainer [2022-04-18 20:13:46,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:13:46,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:13:46,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:13:46,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:13:46,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:13:45" (1/3) ... [2022-04-18 20:13:46,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422e0706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:13:46, skipping insertion in model container [2022-04-18 20:13:46,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:46" (2/3) ... [2022-04-18 20:13:46,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422e0706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:13:46, skipping insertion in model container [2022-04-18 20:13:46,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:13:46" (3/3) ... [2022-04-18 20:13:46,937 INFO L111 eAbstractionObserver]: Analyzing ICFG queue_ok_longer.i [2022-04-18 20:13:46,941 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:13:46,941 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:13:46,942 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2022-04-18 20:13:46,942 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:13:47,038 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 20:13:47,075 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:13:47,079 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 20:13:47,079 INFO L341 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-04-18 20:13:47,092 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:13:47,101 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 443 places, 449 transitions, 914 flow [2022-04-18 20:13:47,103 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 443 places, 449 transitions, 914 flow [2022-04-18 20:13:47,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 443 places, 449 transitions, 914 flow [2022-04-18 20:13:47,266 INFO L129 PetriNetUnfolder]: 13/447 cut-off events. [2022-04-18 20:13:47,266 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 20:13:47,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 447 events. 13/447 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 794 event pairs, 0 based on Foata normal form. 0/399 useless extension candidates. Maximal degree in co-relation 315. Up to 3 conditions per place. [2022-04-18 20:13:47,298 INFO L116 LiptonReduction]: Number of co-enabled transitions 53036 [2022-04-18 20:14:35,870 WARN L232 SmtUtils]: Spent 20.07s on a formula simplification. DAG size of input: 179 DAG size of output: 162 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:14:59,182 WARN L232 SmtUtils]: Spent 19.55s on a formula simplification. DAG size of input: 186 DAG size of output: 169 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:15:05,846 WARN L232 SmtUtils]: Spent 6.66s on a formula simplification that was a NOOP. DAG size: 157 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:15:16,656 WARN L232 SmtUtils]: Spent 5.49s on a formula simplification that was a NOOP. DAG size: 201 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:15:38,430 WARN L232 SmtUtils]: Spent 17.88s on a formula simplification. DAG size of input: 222 DAG size of output: 218 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:15:47,064 WARN L232 SmtUtils]: Spent 8.63s on a formula simplification that was a NOOP. DAG size: 218 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:16:15,399 WARN L232 SmtUtils]: Spent 28.33s on a formula simplification. DAG size of input: 228 DAG size of output: 224 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:16:29,847 WARN L232 SmtUtils]: Spent 14.45s on a formula simplification that was a NOOP. DAG size: 224 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:16:29,853 INFO L131 LiptonReduction]: Checked pairs total: 498070 [2022-04-18 20:16:29,856 INFO L133 LiptonReduction]: Total number of compositions: 318 [2022-04-18 20:16:29,863 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 207 places, 207 transitions, 430 flow [2022-04-18 20:16:31,333 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 59684 states, 59273 states have (on average 2.9389266613803926) internal successors, (174199), 59683 states have internal predecessors, (174199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 59684 states, 59273 states have (on average 2.9389266613803926) internal successors, (174199), 59683 states have internal predecessors, (174199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:31,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 20:16:31,417 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:31,417 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 20:16:31,418 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:31,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:31,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1599, now seen corresponding path program 1 times [2022-04-18 20:16:31,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:31,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261968805] [2022-04-18 20:16:31,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:31,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:31,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:31,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:31,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261968805] [2022-04-18 20:16:31,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261968805] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:31,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:31,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 20:16:31,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009306631] [2022-04-18 20:16:31,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:31,523 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 20:16:31,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:31,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 20:16:31,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 20:16:31,635 INFO L87 Difference]: Start difference. First operand has 59684 states, 59273 states have (on average 2.9389266613803926) internal successors, (174199), 59683 states have internal predecessors, (174199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:32,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:32,903 INFO L93 Difference]: Finished difference Result 59677 states and 174192 transitions. [2022-04-18 20:16:32,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 20:16:32,909 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-04-18 20:16:32,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:33,620 INFO L225 Difference]: With dead ends: 59677 [2022-04-18 20:16:33,621 INFO L226 Difference]: Without dead ends: 59677 [2022-04-18 20:16:33,621 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 20:16:33,624 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:33,625 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:16:33,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59677 states. [2022-04-18 20:16:35,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59677 to 59677. [2022-04-18 20:16:35,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59677 states, 59273 states have (on average 2.9388085637642773) internal successors, (174192), 59676 states have internal predecessors, (174192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:35,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59677 states to 59677 states and 174192 transitions. [2022-04-18 20:16:35,996 INFO L78 Accepts]: Start accepts. Automaton has 59677 states and 174192 transitions. Word has length 1 [2022-04-18 20:16:35,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:35,997 INFO L478 AbstractCegarLoop]: Abstraction has 59677 states and 174192 transitions. [2022-04-18 20:16:35,997 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:35,997 INFO L276 IsEmpty]: Start isEmpty. Operand 59677 states and 174192 transitions. [2022-04-18 20:16:35,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 20:16:35,998 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:36,001 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 20:16:36,002 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 20:16:36,002 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:36,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:36,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1520133762, now seen corresponding path program 1 times [2022-04-18 20:16:36,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:36,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334483528] [2022-04-18 20:16:36,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:36,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:36,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:36,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:36,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334483528] [2022-04-18 20:16:36,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334483528] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:36,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:36,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:16:36,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803009107] [2022-04-18 20:16:36,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:36,321 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:16:36,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:36,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:16:36,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:16:36,323 INFO L87 Difference]: Start difference. First operand 59677 states and 174192 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:37,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:37,118 INFO L93 Difference]: Finished difference Result 63178 states and 182454 transitions. [2022-04-18 20:16:37,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:16:37,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-04-18 20:16:37,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:37,388 INFO L225 Difference]: With dead ends: 63178 [2022-04-18 20:16:37,388 INFO L226 Difference]: Without dead ends: 63178 [2022-04-18 20:16:37,389 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:16:37,389 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 182 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:37,390 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 325 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:16:37,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63178 states. [2022-04-18 20:16:38,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63178 to 59011. [2022-04-18 20:16:38,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59011 states, 58633 states have (on average 2.9382600242184433) internal successors, (172279), 59010 states have internal predecessors, (172279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:39,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59011 states to 59011 states and 172279 transitions. [2022-04-18 20:16:39,273 INFO L78 Accepts]: Start accepts. Automaton has 59011 states and 172279 transitions. Word has length 5 [2022-04-18 20:16:39,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:39,273 INFO L478 AbstractCegarLoop]: Abstraction has 59011 states and 172279 transitions. [2022-04-18 20:16:39,273 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:39,274 INFO L276 IsEmpty]: Start isEmpty. Operand 59011 states and 172279 transitions. [2022-04-18 20:16:39,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-04-18 20:16:39,275 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:39,275 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:39,275 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 20:16:39,275 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:39,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:39,277 INFO L85 PathProgramCache]: Analyzing trace with hash 557762083, now seen corresponding path program 1 times [2022-04-18 20:16:39,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:39,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369056208] [2022-04-18 20:16:39,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:39,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:39,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:39,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:39,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369056208] [2022-04-18 20:16:39,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369056208] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:39,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:39,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:16:39,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674782150] [2022-04-18 20:16:39,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:39,336 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:16:39,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:39,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:16:39,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:16:39,337 INFO L87 Difference]: Start difference. First operand 59011 states and 172279 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 20:16:39,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:39,816 INFO L93 Difference]: Finished difference Result 63552 states and 183653 transitions. [2022-04-18 20:16:39,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:16:39,817 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 20:16:39,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:40,051 INFO L225 Difference]: With dead ends: 63552 [2022-04-18 20:16:40,051 INFO L226 Difference]: Without dead ends: 63552 [2022-04-18 20:16:40,051 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:16:40,052 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 180 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:40,053 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 312 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:16:40,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63552 states. [2022-04-18 20:16:41,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63552 to 58459. [2022-04-18 20:16:41,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58459 states, 58101 states have (on average 2.9378496067193334) internal successors, (170692), 58458 states have internal predecessors, (170692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:41,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58459 states to 58459 states and 170692 transitions. [2022-04-18 20:16:41,742 INFO L78 Accepts]: Start accepts. Automaton has 58459 states and 170692 transitions. Word has length 7 [2022-04-18 20:16:41,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:41,743 INFO L478 AbstractCegarLoop]: Abstraction has 58459 states and 170692 transitions. [2022-04-18 20:16:41,743 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 20:16:41,743 INFO L276 IsEmpty]: Start isEmpty. Operand 58459 states and 170692 transitions. [2022-04-18 20:16:41,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 20:16:41,744 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:41,744 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:41,745 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 20:16:41,745 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:41,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:41,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1009993156, now seen corresponding path program 1 times [2022-04-18 20:16:41,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:41,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731611784] [2022-04-18 20:16:41,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:41,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:42,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:42,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:42,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731611784] [2022-04-18 20:16:42,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731611784] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:42,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:42,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 20:16:42,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896200082] [2022-04-18 20:16:42,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:42,067 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:16:42,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:42,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:16:42,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:16:42,075 INFO L87 Difference]: Start difference. First operand 58459 states and 170692 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:42,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:42,774 INFO L93 Difference]: Finished difference Result 105691 states and 308646 transitions. [2022-04-18 20:16:42,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:16:42,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-04-18 20:16:42,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:43,471 INFO L225 Difference]: With dead ends: 105691 [2022-04-18 20:16:43,471 INFO L226 Difference]: Without dead ends: 105691 [2022-04-18 20:16:43,472 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:16:43,472 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 168 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:43,473 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 323 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:16:43,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105691 states. [2022-04-18 20:16:45,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105691 to 59197. [2022-04-18 20:16:45,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59197 states, 58839 states have (on average 2.9374394534237496) internal successors, (172836), 59196 states have internal predecessors, (172836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:45,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59197 states to 59197 states and 172836 transitions. [2022-04-18 20:16:45,395 INFO L78 Accepts]: Start accepts. Automaton has 59197 states and 172836 transitions. Word has length 9 [2022-04-18 20:16:45,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:45,398 INFO L478 AbstractCegarLoop]: Abstraction has 59197 states and 172836 transitions. [2022-04-18 20:16:45,398 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:45,398 INFO L276 IsEmpty]: Start isEmpty. Operand 59197 states and 172836 transitions. [2022-04-18 20:16:45,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 20:16:45,403 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:45,403 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:45,404 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 20:16:45,404 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:45,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:45,404 INFO L85 PathProgramCache]: Analyzing trace with hash 85709313, now seen corresponding path program 1 times [2022-04-18 20:16:45,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:45,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426161744] [2022-04-18 20:16:45,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:45,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:45,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:45,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:45,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426161744] [2022-04-18 20:16:45,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426161744] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:45,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:45,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:16:45,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101404715] [2022-04-18 20:16:45,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:45,523 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:16:45,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:45,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:16:45,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:16:45,524 INFO L87 Difference]: Start difference. First operand 59197 states and 172836 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:47,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:47,491 INFO L93 Difference]: Finished difference Result 96232 states and 278030 transitions. [2022-04-18 20:16:47,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:16:47,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-04-18 20:16:47,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:47,838 INFO L225 Difference]: With dead ends: 96232 [2022-04-18 20:16:47,838 INFO L226 Difference]: Without dead ends: 96232 [2022-04-18 20:16:47,839 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:16:47,839 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 403 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:47,839 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 291 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 20:16:48,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96232 states. [2022-04-18 20:16:50,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96232 to 88221. [2022-04-18 20:16:50,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88221 states, 87863 states have (on average 2.9769299932850006) internal successors, (261562), 88220 states have internal predecessors, (261562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:50,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88221 states to 88221 states and 261562 transitions. [2022-04-18 20:16:50,443 INFO L78 Accepts]: Start accepts. Automaton has 88221 states and 261562 transitions. Word has length 10 [2022-04-18 20:16:50,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:50,443 INFO L478 AbstractCegarLoop]: Abstraction has 88221 states and 261562 transitions. [2022-04-18 20:16:50,443 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:50,444 INFO L276 IsEmpty]: Start isEmpty. Operand 88221 states and 261562 transitions. [2022-04-18 20:16:50,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 20:16:50,444 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:50,445 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:50,445 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 20:16:50,445 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:50,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:50,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1022811786, now seen corresponding path program 1 times [2022-04-18 20:16:50,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:50,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946582490] [2022-04-18 20:16:50,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:50,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:50,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:50,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:50,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946582490] [2022-04-18 20:16:50,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946582490] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:50,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:50,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 20:16:50,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597265191] [2022-04-18 20:16:50,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:50,499 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:16:50,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:50,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:16:50,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:16:50,501 INFO L87 Difference]: Start difference. First operand 88221 states and 261562 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 20:16:51,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:51,959 INFO L93 Difference]: Finished difference Result 161679 states and 478719 transitions. [2022-04-18 20:16:51,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:16:51,959 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 20:16:51,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:52,586 INFO L225 Difference]: With dead ends: 161679 [2022-04-18 20:16:52,586 INFO L226 Difference]: Without dead ends: 161679 [2022-04-18 20:16:52,586 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:16:52,587 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 173 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:52,587 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 313 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:16:52,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161679 states. [2022-04-18 20:16:55,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161679 to 89147. [2022-04-18 20:16:55,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89147 states, 88789 states have (on average 2.976404734820755) internal successors, (264272), 89146 states have internal predecessors, (264272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:55,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89147 states to 89147 states and 264272 transitions. [2022-04-18 20:16:55,896 INFO L78 Accepts]: Start accepts. Automaton has 89147 states and 264272 transitions. Word has length 11 [2022-04-18 20:16:55,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:55,896 INFO L478 AbstractCegarLoop]: Abstraction has 89147 states and 264272 transitions. [2022-04-18 20:16:55,896 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 20:16:55,896 INFO L276 IsEmpty]: Start isEmpty. Operand 89147 states and 264272 transitions. [2022-04-18 20:16:55,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-18 20:16:55,897 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:55,897 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:55,897 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 20:16:55,898 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:55,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:55,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1239283502, now seen corresponding path program 1 times [2022-04-18 20:16:55,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:55,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589282999] [2022-04-18 20:16:55,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:55,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:55,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:55,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:55,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589282999] [2022-04-18 20:16:55,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589282999] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:55,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:55,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:16:55,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922148960] [2022-04-18 20:16:55,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:55,996 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:16:55,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:55,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:16:55,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:16:55,997 INFO L87 Difference]: Start difference. First operand 89147 states and 264272 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:58,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:58,014 INFO L93 Difference]: Finished difference Result 113249 states and 336147 transitions. [2022-04-18 20:16:58,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:16:58,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-04-18 20:16:58,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:58,473 INFO L225 Difference]: With dead ends: 113249 [2022-04-18 20:16:58,473 INFO L226 Difference]: Without dead ends: 113249 [2022-04-18 20:16:58,474 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:16:58,474 INFO L913 BasicCegarLoop]: 153 mSDtfsCounter, 232 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 1499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:58,474 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 232 Invalid, 1499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 20:16:58,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113249 states. [2022-04-18 20:17:01,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113249 to 101633. [2022-04-18 20:17:01,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101633 states, 101275 states have (on average 2.982009380399901) internal successors, (302003), 101632 states have internal predecessors, (302003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:01,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101633 states to 101633 states and 302003 transitions. [2022-04-18 20:17:01,489 INFO L78 Accepts]: Start accepts. Automaton has 101633 states and 302003 transitions. Word has length 12 [2022-04-18 20:17:01,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:01,489 INFO L478 AbstractCegarLoop]: Abstraction has 101633 states and 302003 transitions. [2022-04-18 20:17:01,490 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:01,490 INFO L276 IsEmpty]: Start isEmpty. Operand 101633 states and 302003 transitions. [2022-04-18 20:17:01,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-18 20:17:01,491 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:01,491 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:01,491 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 20:17:01,492 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:01,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:01,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1173524087, now seen corresponding path program 1 times [2022-04-18 20:17:01,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:01,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334814276] [2022-04-18 20:17:01,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:01,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:01,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:01,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:01,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334814276] [2022-04-18 20:17:01,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334814276] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:01,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:01,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:17:01,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773196563] [2022-04-18 20:17:01,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:01,562 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:17:01,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:01,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:17:01,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:01,563 INFO L87 Difference]: Start difference. First operand 101633 states and 302003 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:03,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:03,315 INFO L93 Difference]: Finished difference Result 142430 states and 422331 transitions. [2022-04-18 20:17:03,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:17:03,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-04-18 20:17:03,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:03,822 INFO L225 Difference]: With dead ends: 142430 [2022-04-18 20:17:03,822 INFO L226 Difference]: Without dead ends: 142430 [2022-04-18 20:17:03,822 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:03,822 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 282 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:03,823 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 186 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-18 20:17:04,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142430 states. [2022-04-18 20:17:06,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142430 to 104773. [2022-04-18 20:17:06,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104773 states, 104421 states have (on average 2.9798220664425736) internal successors, (311156), 104772 states have internal predecessors, (311156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:07,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104773 states to 104773 states and 311156 transitions. [2022-04-18 20:17:07,312 INFO L78 Accepts]: Start accepts. Automaton has 104773 states and 311156 transitions. Word has length 14 [2022-04-18 20:17:07,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:07,312 INFO L478 AbstractCegarLoop]: Abstraction has 104773 states and 311156 transitions. [2022-04-18 20:17:07,312 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:07,312 INFO L276 IsEmpty]: Start isEmpty. Operand 104773 states and 311156 transitions. [2022-04-18 20:17:07,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-18 20:17:07,315 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:07,315 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:07,315 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 20:17:07,315 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:07,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:07,316 INFO L85 PathProgramCache]: Analyzing trace with hash 2105408927, now seen corresponding path program 1 times [2022-04-18 20:17:07,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:07,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300540809] [2022-04-18 20:17:07,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:07,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:07,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:07,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:07,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300540809] [2022-04-18 20:17:07,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300540809] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:07,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:07,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:17:07,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094807304] [2022-04-18 20:17:07,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:07,385 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:17:07,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:07,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:17:07,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:07,386 INFO L87 Difference]: Start difference. First operand 104773 states and 311156 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:09,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:09,235 INFO L93 Difference]: Finished difference Result 107689 states and 319619 transitions. [2022-04-18 20:17:09,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:17:09,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 18 [2022-04-18 20:17:09,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:09,666 INFO L225 Difference]: With dead ends: 107689 [2022-04-18 20:17:09,667 INFO L226 Difference]: Without dead ends: 107689 [2022-04-18 20:17:09,667 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:09,667 INFO L913 BasicCegarLoop]: 162 mSDtfsCounter, 224 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:09,668 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 232 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-18 20:17:09,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107689 states. [2022-04-18 20:17:11,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107689 to 107689. [2022-04-18 20:17:12,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107689 states, 107337 states have (on average 2.9777150470015) internal successors, (319619), 107688 states have internal predecessors, (319619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:12,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107689 states to 107689 states and 319619 transitions. [2022-04-18 20:17:12,869 INFO L78 Accepts]: Start accepts. Automaton has 107689 states and 319619 transitions. Word has length 18 [2022-04-18 20:17:12,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:12,869 INFO L478 AbstractCegarLoop]: Abstraction has 107689 states and 319619 transitions. [2022-04-18 20:17:12,869 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:12,869 INFO L276 IsEmpty]: Start isEmpty. Operand 107689 states and 319619 transitions. [2022-04-18 20:17:12,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-04-18 20:17:12,872 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:12,872 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] [2022-04-18 20:17:12,872 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 20:17:12,873 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:12,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:12,873 INFO L85 PathProgramCache]: Analyzing trace with hash -952031749, now seen corresponding path program 1 times [2022-04-18 20:17:12,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:12,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319894287] [2022-04-18 20:17:12,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:12,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:12,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:12,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:12,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319894287] [2022-04-18 20:17:12,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319894287] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:12,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:12,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:17:12,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371679707] [2022-04-18 20:17:12,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:12,930 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:17:12,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:12,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:17:12,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:17:12,931 INFO L87 Difference]: Start difference. First operand 107689 states and 319619 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:13,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:13,057 INFO L93 Difference]: Finished difference Result 12681 states and 34447 transitions. [2022-04-18 20:17:13,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:17:13,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 20 [2022-04-18 20:17:13,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:13,091 INFO L225 Difference]: With dead ends: 12681 [2022-04-18 20:17:13,091 INFO L226 Difference]: Without dead ends: 12677 [2022-04-18 20:17:13,092 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:17:13,092 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 101 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:13,092 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 205 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:17:13,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12677 states. [2022-04-18 20:17:13,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12677 to 12476. [2022-04-18 20:17:13,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12476 states, 12378 states have (on average 2.7448699305218938) internal successors, (33976), 12475 states have internal predecessors, (33976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:13,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12476 states to 12476 states and 33976 transitions. [2022-04-18 20:17:13,361 INFO L78 Accepts]: Start accepts. Automaton has 12476 states and 33976 transitions. Word has length 20 [2022-04-18 20:17:13,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:13,361 INFO L478 AbstractCegarLoop]: Abstraction has 12476 states and 33976 transitions. [2022-04-18 20:17:13,361 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:13,361 INFO L276 IsEmpty]: Start isEmpty. Operand 12476 states and 33976 transitions. [2022-04-18 20:17:13,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-04-18 20:17:13,363 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:13,363 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] [2022-04-18 20:17:13,363 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 20:17:13,364 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:13,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:13,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1733582834, now seen corresponding path program 1 times [2022-04-18 20:17:13,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:13,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279351178] [2022-04-18 20:17:13,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:13,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:13,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:13,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:13,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279351178] [2022-04-18 20:17:13,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279351178] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:13,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:13,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:17:13,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513696854] [2022-04-18 20:17:13,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:13,404 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:17:13,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:13,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:17:13,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:17:13,405 INFO L87 Difference]: Start difference. First operand 12476 states and 33976 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:13,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:13,515 INFO L93 Difference]: Finished difference Result 12568 states and 34142 transitions. [2022-04-18 20:17:13,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:17:13,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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 21 [2022-04-18 20:17:13,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:13,552 INFO L225 Difference]: With dead ends: 12568 [2022-04-18 20:17:13,553 INFO L226 Difference]: Without dead ends: 12568 [2022-04-18 20:17:13,553 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:17:13,553 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 86 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:13,554 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 214 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:17:13,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12568 states. [2022-04-18 20:17:13,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12568 to 12367. [2022-04-18 20:17:13,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12367 states, 12270 states have (on average 2.7447432762836184) internal successors, (33678), 12366 states have internal predecessors, (33678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:13,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12367 states to 12367 states and 33678 transitions. [2022-04-18 20:17:13,772 INFO L78 Accepts]: Start accepts. Automaton has 12367 states and 33678 transitions. Word has length 21 [2022-04-18 20:17:13,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:13,772 INFO L478 AbstractCegarLoop]: Abstraction has 12367 states and 33678 transitions. [2022-04-18 20:17:13,772 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:13,772 INFO L276 IsEmpty]: Start isEmpty. Operand 12367 states and 33678 transitions. [2022-04-18 20:17:13,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:17:13,774 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:13,775 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:13,775 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 20:17:13,775 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:13,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:13,775 INFO L85 PathProgramCache]: Analyzing trace with hash 2104269355, now seen corresponding path program 1 times [2022-04-18 20:17:13,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:13,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53632334] [2022-04-18 20:17:13,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:13,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:13,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:13,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:13,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53632334] [2022-04-18 20:17:13,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53632334] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:13,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:13,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:17:13,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505701408] [2022-04-18 20:17:13,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:13,958 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:17:13,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:13,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:17:13,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:17:13,959 INFO L87 Difference]: Start difference. First operand 12367 states and 33678 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:15,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:15,878 INFO L93 Difference]: Finished difference Result 14816 states and 38761 transitions. [2022-04-18 20:17:15,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:17:15,879 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-04-18 20:17:15,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:15,914 INFO L225 Difference]: With dead ends: 14816 [2022-04-18 20:17:15,914 INFO L226 Difference]: Without dead ends: 14816 [2022-04-18 20:17:15,914 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-04-18 20:17:15,915 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 715 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 2315 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 2682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 2315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:15,915 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [715 Valid, 351 Invalid, 2682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 2315 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 20:17:15,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14816 states. [2022-04-18 20:17:16,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14816 to 12682. [2022-04-18 20:17:16,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12682 states, 12585 states have (on average 2.7492252681764007) internal successors, (34599), 12681 states have internal predecessors, (34599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:16,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12682 states to 12682 states and 34599 transitions. [2022-04-18 20:17:16,167 INFO L78 Accepts]: Start accepts. Automaton has 12682 states and 34599 transitions. Word has length 22 [2022-04-18 20:17:16,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:16,167 INFO L478 AbstractCegarLoop]: Abstraction has 12682 states and 34599 transitions. [2022-04-18 20:17:16,167 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:16,167 INFO L276 IsEmpty]: Start isEmpty. Operand 12682 states and 34599 transitions. [2022-04-18 20:17:16,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:17:16,170 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:16,170 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:16,170 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 20:17:16,170 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:16,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:16,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1051911395, now seen corresponding path program 2 times [2022-04-18 20:17:16,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:16,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132934045] [2022-04-18 20:17:16,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:16,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:16,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:16,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:16,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132934045] [2022-04-18 20:17:16,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132934045] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:16,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:16,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:17:16,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245346580] [2022-04-18 20:17:16,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:16,327 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:17:16,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:16,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:17:16,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:17:16,328 INFO L87 Difference]: Start difference. First operand 12682 states and 34599 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:18,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:18,257 INFO L93 Difference]: Finished difference Result 15642 states and 41100 transitions. [2022-04-18 20:17:18,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 20:17:18,258 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-04-18 20:17:18,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:18,291 INFO L225 Difference]: With dead ends: 15642 [2022-04-18 20:17:18,291 INFO L226 Difference]: Without dead ends: 15642 [2022-04-18 20:17:18,291 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-04-18 20:17:18,291 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 653 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 3109 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 3443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 3109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:18,292 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [653 Valid, 435 Invalid, 3443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 3109 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 20:17:18,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15642 states. [2022-04-18 20:17:18,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15642 to 13025. [2022-04-18 20:17:18,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13025 states, 12928 states have (on average 2.7542543316831685) internal successors, (35607), 13024 states have internal predecessors, (35607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:18,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13025 states to 13025 states and 35607 transitions. [2022-04-18 20:17:18,667 INFO L78 Accepts]: Start accepts. Automaton has 13025 states and 35607 transitions. Word has length 22 [2022-04-18 20:17:18,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:18,667 INFO L478 AbstractCegarLoop]: Abstraction has 13025 states and 35607 transitions. [2022-04-18 20:17:18,667 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:18,667 INFO L276 IsEmpty]: Start isEmpty. Operand 13025 states and 35607 transitions. [2022-04-18 20:17:18,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:17:18,669 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:18,669 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:18,669 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 20:17:18,670 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:18,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:18,670 INFO L85 PathProgramCache]: Analyzing trace with hash -413215087, now seen corresponding path program 3 times [2022-04-18 20:17:18,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:18,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555290360] [2022-04-18 20:17:18,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:18,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:18,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:18,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:18,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555290360] [2022-04-18 20:17:18,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555290360] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:18,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:18,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:17:18,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226410655] [2022-04-18 20:17:18,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:18,805 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:17:18,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:18,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:17:18,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:17:18,806 INFO L87 Difference]: Start difference. First operand 13025 states and 35607 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:20,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:20,352 INFO L93 Difference]: Finished difference Result 16468 states and 43474 transitions. [2022-04-18 20:17:20,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 20:17:20,352 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-04-18 20:17:20,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:20,385 INFO L225 Difference]: With dead ends: 16468 [2022-04-18 20:17:20,385 INFO L226 Difference]: Without dead ends: 16468 [2022-04-18 20:17:20,385 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-04-18 20:17:20,386 INFO L913 BasicCegarLoop]: 177 mSDtfsCounter, 597 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 2742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:20,386 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [597 Valid, 354 Invalid, 2742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 20:17:20,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16468 states. [2022-04-18 20:17:20,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16468 to 13368. [2022-04-18 20:17:20,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13368 states, 13271 states have (on average 2.759023434556552) internal successors, (36615), 13367 states have internal predecessors, (36615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:20,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13368 states to 13368 states and 36615 transitions. [2022-04-18 20:17:20,641 INFO L78 Accepts]: Start accepts. Automaton has 13368 states and 36615 transitions. Word has length 22 [2022-04-18 20:17:20,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:20,642 INFO L478 AbstractCegarLoop]: Abstraction has 13368 states and 36615 transitions. [2022-04-18 20:17:20,642 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:20,642 INFO L276 IsEmpty]: Start isEmpty. Operand 13368 states and 36615 transitions. [2022-04-18 20:17:20,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:17:20,644 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:20,644 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:20,644 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 20:17:20,644 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:20,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:20,645 INFO L85 PathProgramCache]: Analyzing trace with hash -767002981, now seen corresponding path program 4 times [2022-04-18 20:17:20,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:20,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221119549] [2022-04-18 20:17:20,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:20,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:20,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:20,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221119549] [2022-04-18 20:17:20,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221119549] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:20,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:20,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:17:20,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311121870] [2022-04-18 20:17:20,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:20,791 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:17:20,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:20,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:17:20,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:17:20,792 INFO L87 Difference]: Start difference. First operand 13368 states and 36615 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:22,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:22,664 INFO L93 Difference]: Finished difference Result 17294 states and 45848 transitions. [2022-04-18 20:17:22,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 20:17:22,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-04-18 20:17:22,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:22,698 INFO L225 Difference]: With dead ends: 17294 [2022-04-18 20:17:22,698 INFO L226 Difference]: Without dead ends: 17294 [2022-04-18 20:17:22,699 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2022-04-18 20:17:22,699 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 676 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 2914 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 3286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 2914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:22,699 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [676 Valid, 406 Invalid, 3286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 2914 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 20:17:22,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17294 states. [2022-04-18 20:17:22,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17294 to 13711. [2022-04-18 20:17:22,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13711 states, 13614 states have (on average 2.763552225650066) internal successors, (37623), 13710 states have internal predecessors, (37623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:22,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13711 states to 13711 states and 37623 transitions. [2022-04-18 20:17:22,948 INFO L78 Accepts]: Start accepts. Automaton has 13711 states and 37623 transitions. Word has length 22 [2022-04-18 20:17:22,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:22,948 INFO L478 AbstractCegarLoop]: Abstraction has 13711 states and 37623 transitions. [2022-04-18 20:17:22,948 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:22,948 INFO L276 IsEmpty]: Start isEmpty. Operand 13711 states and 37623 transitions. [2022-04-18 20:17:22,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:17:22,950 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:22,951 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:22,951 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 20:17:22,951 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:22,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:22,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1957599592, now seen corresponding path program 1 times [2022-04-18 20:17:22,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:22,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081956477] [2022-04-18 20:17:22,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:22,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:23,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:23,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:23,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081956477] [2022-04-18 20:17:23,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081956477] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:23,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:23,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:17:23,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949748956] [2022-04-18 20:17:23,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:23,118 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:17:23,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:23,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:17:23,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:17:23,119 INFO L87 Difference]: Start difference. First operand 13711 states and 37623 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:23,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:23,737 INFO L93 Difference]: Finished difference Result 13641 states and 37409 transitions. [2022-04-18 20:17:23,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:17:23,737 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-04-18 20:17:23,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:23,767 INFO L225 Difference]: With dead ends: 13641 [2022-04-18 20:17:23,767 INFO L226 Difference]: Without dead ends: 13641 [2022-04-18 20:17:23,767 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-04-18 20:17:23,768 INFO L913 BasicCegarLoop]: 96 mSDtfsCounter, 402 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:23,768 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 195 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 20:17:23,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13641 states. [2022-04-18 20:17:23,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13641 to 13396. [2022-04-18 20:17:23,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13396 states, 13303 states have (on average 2.7615575434112607) internal successors, (36737), 13395 states have internal predecessors, (36737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13396 states to 13396 states and 36737 transitions. [2022-04-18 20:17:23,996 INFO L78 Accepts]: Start accepts. Automaton has 13396 states and 36737 transitions. Word has length 22 [2022-04-18 20:17:23,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:23,996 INFO L478 AbstractCegarLoop]: Abstraction has 13396 states and 36737 transitions. [2022-04-18 20:17:23,996 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:23,997 INFO L276 IsEmpty]: Start isEmpty. Operand 13396 states and 36737 transitions. [2022-04-18 20:17:23,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:17:23,998 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:23,998 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:23,999 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 20:17:23,999 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:23,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:23,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2147159, now seen corresponding path program 5 times [2022-04-18 20:17:23,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:23,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055413454] [2022-04-18 20:17:23,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:24,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:24,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:24,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:24,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055413454] [2022-04-18 20:17:24,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055413454] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:24,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:24,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:17:24,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654573259] [2022-04-18 20:17:24,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:24,096 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:17:24,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:24,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:17:24,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:17:24,097 INFO L87 Difference]: Start difference. First operand 13396 states and 36737 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:25,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:25,662 INFO L93 Difference]: Finished difference Result 16377 states and 43760 transitions. [2022-04-18 20:17:25,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 20:17:25,662 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-04-18 20:17:25,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:25,695 INFO L225 Difference]: With dead ends: 16377 [2022-04-18 20:17:25,696 INFO L226 Difference]: Without dead ends: 16377 [2022-04-18 20:17:25,696 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-04-18 20:17:25,696 INFO L913 BasicCegarLoop]: 160 mSDtfsCounter, 727 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 2457 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 2738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 2457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:25,696 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 351 Invalid, 2738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 2457 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 20:17:25,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16377 states. [2022-04-18 20:17:25,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16377 to 12136. [2022-04-18 20:17:25,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12136 states, 12043 states have (on average 2.744581914805281) internal successors, (33053), 12135 states have internal predecessors, (33053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:25,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12136 states to 12136 states and 33053 transitions. [2022-04-18 20:17:25,939 INFO L78 Accepts]: Start accepts. Automaton has 12136 states and 33053 transitions. Word has length 22 [2022-04-18 20:17:25,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:25,939 INFO L478 AbstractCegarLoop]: Abstraction has 12136 states and 33053 transitions. [2022-04-18 20:17:25,939 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:25,939 INFO L276 IsEmpty]: Start isEmpty. Operand 12136 states and 33053 transitions. [2022-04-18 20:17:25,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-18 20:17:25,941 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:25,941 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:25,941 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 20:17:25,941 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:25,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:25,942 INFO L85 PathProgramCache]: Analyzing trace with hash -265709027, now seen corresponding path program 1 times [2022-04-18 20:17:25,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:25,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197688289] [2022-04-18 20:17:25,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:25,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:26,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:26,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:26,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197688289] [2022-04-18 20:17:26,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197688289] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:26,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:26,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:17:26,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813292973] [2022-04-18 20:17:26,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:26,008 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:17:26,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:26,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:17:26,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:26,008 INFO L87 Difference]: Start difference. First operand 12136 states and 33053 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:26,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:26,324 INFO L93 Difference]: Finished difference Result 12050 states and 32816 transitions. [2022-04-18 20:17:26,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:17:26,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 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 24 [2022-04-18 20:17:26,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:26,347 INFO L225 Difference]: With dead ends: 12050 [2022-04-18 20:17:26,348 INFO L226 Difference]: Without dead ends: 12050 [2022-04-18 20:17:26,348 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:26,348 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 48 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:26,348 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 175 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 20:17:26,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12050 states. [2022-04-18 20:17:26,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12050 to 12050. [2022-04-18 20:17:26,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12050 states, 11961 states have (on average 2.743583312432071) internal successors, (32816), 12049 states have internal predecessors, (32816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:26,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12050 states to 12050 states and 32816 transitions. [2022-04-18 20:17:26,542 INFO L78 Accepts]: Start accepts. Automaton has 12050 states and 32816 transitions. Word has length 24 [2022-04-18 20:17:26,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:26,542 INFO L478 AbstractCegarLoop]: Abstraction has 12050 states and 32816 transitions. [2022-04-18 20:17:26,542 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:26,542 INFO L276 IsEmpty]: Start isEmpty. Operand 12050 states and 32816 transitions. [2022-04-18 20:17:26,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-18 20:17:26,544 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:26,544 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:26,545 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 20:17:26,545 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:26,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:26,545 INFO L85 PathProgramCache]: Analyzing trace with hash 2133318674, now seen corresponding path program 1 times [2022-04-18 20:17:26,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:26,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364987300] [2022-04-18 20:17:26,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:26,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:26,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:26,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:26,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364987300] [2022-04-18 20:17:26,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364987300] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:26,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:26,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:17:26,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556291906] [2022-04-18 20:17:26,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:26,610 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:17:26,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:26,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:17:26,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:26,610 INFO L87 Difference]: Start difference. First operand 12050 states and 32816 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:26,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:26,927 INFO L93 Difference]: Finished difference Result 12342 states and 33617 transitions. [2022-04-18 20:17:26,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:17:26,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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 30 [2022-04-18 20:17:26,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:26,953 INFO L225 Difference]: With dead ends: 12342 [2022-04-18 20:17:26,953 INFO L226 Difference]: Without dead ends: 12342 [2022-04-18 20:17:26,953 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:26,954 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 46 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:26,954 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 176 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 20:17:26,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12342 states. [2022-04-18 20:17:27,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12342 to 12279. [2022-04-18 20:17:27,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12279 states, 12190 states have (on average 2.743560295324036) internal successors, (33444), 12278 states have internal predecessors, (33444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:27,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12279 states to 12279 states and 33444 transitions. [2022-04-18 20:17:27,161 INFO L78 Accepts]: Start accepts. Automaton has 12279 states and 33444 transitions. Word has length 30 [2022-04-18 20:17:27,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:27,161 INFO L478 AbstractCegarLoop]: Abstraction has 12279 states and 33444 transitions. [2022-04-18 20:17:27,162 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:27,162 INFO L276 IsEmpty]: Start isEmpty. Operand 12279 states and 33444 transitions. [2022-04-18 20:17:27,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-04-18 20:17:27,164 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:27,164 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:27,164 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 20:17:27,164 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:27,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:27,165 INFO L85 PathProgramCache]: Analyzing trace with hash -498070073, now seen corresponding path program 1 times [2022-04-18 20:17:27,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:27,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902985611] [2022-04-18 20:17:27,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:27,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:27,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:27,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:27,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902985611] [2022-04-18 20:17:27,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902985611] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:27,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:27,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:17:27,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153485209] [2022-04-18 20:17:27,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:27,314 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:17:27,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:27,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:17:27,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:17:27,321 INFO L87 Difference]: Start difference. First operand 12279 states and 33444 transitions. Second operand has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:27,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:27,793 INFO L93 Difference]: Finished difference Result 12216 states and 33271 transitions. [2022-04-18 20:17:27,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:17:27,793 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-04-18 20:17:27,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:27,817 INFO L225 Difference]: With dead ends: 12216 [2022-04-18 20:17:27,817 INFO L226 Difference]: Without dead ends: 12216 [2022-04-18 20:17:27,817 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-04-18 20:17:27,818 INFO L913 BasicCegarLoop]: 96 mSDtfsCounter, 387 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:27,818 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 173 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:17:27,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12216 states. [2022-04-18 20:17:28,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12216 to 11964. [2022-04-18 20:17:28,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11964 states, 11879 states have (on average 2.7425709234784073) internal successors, (32579), 11963 states have internal predecessors, (32579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:28,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11964 states to 11964 states and 32579 transitions. [2022-04-18 20:17:28,056 INFO L78 Accepts]: Start accepts. Automaton has 11964 states and 32579 transitions. Word has length 34 [2022-04-18 20:17:28,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:28,056 INFO L478 AbstractCegarLoop]: Abstraction has 11964 states and 32579 transitions. [2022-04-18 20:17:28,056 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:28,056 INFO L276 IsEmpty]: Start isEmpty. Operand 11964 states and 32579 transitions. [2022-04-18 20:17:28,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-04-18 20:17:28,059 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:28,060 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:28,060 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 20:17:28,060 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:28,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:28,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1350538534, now seen corresponding path program 1 times [2022-04-18 20:17:28,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:28,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675232604] [2022-04-18 20:17:28,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:28,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:28,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:28,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:28,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675232604] [2022-04-18 20:17:28,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675232604] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:28,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:28,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:17:28,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730314201] [2022-04-18 20:17:28,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:28,153 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:17:28,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:28,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:17:28,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:28,154 INFO L87 Difference]: Start difference. First operand 11964 states and 32579 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:28,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:28,541 INFO L93 Difference]: Finished difference Result 12193 states and 33207 transitions. [2022-04-18 20:17:28,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:17:28,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2022-04-18 20:17:28,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:28,564 INFO L225 Difference]: With dead ends: 12193 [2022-04-18 20:17:28,564 INFO L226 Difference]: Without dead ends: 12193 [2022-04-18 20:17:28,565 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:28,565 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 44 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:28,565 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 194 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 20:17:28,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12193 states. [2022-04-18 20:17:28,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12193 to 12193. [2022-04-18 20:17:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12193 states, 12108 states have (on average 2.7425668979187314) internal successors, (33207), 12192 states have internal predecessors, (33207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:28,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12193 states to 12193 states and 33207 transitions. [2022-04-18 20:17:28,740 INFO L78 Accepts]: Start accepts. Automaton has 12193 states and 33207 transitions. Word has length 42 [2022-04-18 20:17:28,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:28,740 INFO L478 AbstractCegarLoop]: Abstraction has 12193 states and 33207 transitions. [2022-04-18 20:17:28,740 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:28,740 INFO L276 IsEmpty]: Start isEmpty. Operand 12193 states and 33207 transitions. [2022-04-18 20:17:28,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-04-18 20:17:28,744 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:28,744 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:28,744 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 20:17:28,744 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:28,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:28,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1100176495, now seen corresponding path program 1 times [2022-04-18 20:17:28,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:28,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806671052] [2022-04-18 20:17:28,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:28,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:28,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:28,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:28,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806671052] [2022-04-18 20:17:28,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806671052] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:28,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:28,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:17:28,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729776325] [2022-04-18 20:17:28,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:28,866 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:17:28,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:28,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:17:28,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:17:28,866 INFO L87 Difference]: Start difference. First operand 12193 states and 33207 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:29,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:29,412 INFO L93 Difference]: Finished difference Result 12130 states and 33034 transitions. [2022-04-18 20:17:29,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:17:29,413 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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 46 [2022-04-18 20:17:29,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:29,435 INFO L225 Difference]: With dead ends: 12130 [2022-04-18 20:17:29,435 INFO L226 Difference]: Without dead ends: 12130 [2022-04-18 20:17:29,435 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-04-18 20:17:29,435 INFO L913 BasicCegarLoop]: 96 mSDtfsCounter, 360 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:29,436 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 193 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:17:29,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12130 states. [2022-04-18 20:17:29,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12130 to 11878. [2022-04-18 20:17:29,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11878 states, 11797 states have (on average 2.741544460456048) internal successors, (32342), 11877 states have internal predecessors, (32342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:29,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11878 states to 11878 states and 32342 transitions. [2022-04-18 20:17:29,618 INFO L78 Accepts]: Start accepts. Automaton has 11878 states and 32342 transitions. Word has length 46 [2022-04-18 20:17:29,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:29,618 INFO L478 AbstractCegarLoop]: Abstraction has 11878 states and 32342 transitions. [2022-04-18 20:17:29,618 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:29,618 INFO L276 IsEmpty]: Start isEmpty. Operand 11878 states and 32342 transitions. [2022-04-18 20:17:29,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-18 20:17:29,622 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:29,622 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:29,622 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-18 20:17:29,622 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting t1Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:29,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:29,623 INFO L85 PathProgramCache]: Analyzing trace with hash 361984394, now seen corresponding path program 1 times [2022-04-18 20:17:29,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:29,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461754702] [2022-04-18 20:17:29,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:29,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:29,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:29,717 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:29,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461754702] [2022-04-18 20:17:29,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461754702] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:29,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:29,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:17:29,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063264710] [2022-04-18 20:17:29,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:29,718 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:17:29,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:29,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:17:29,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:29,718 INFO L87 Difference]: Start difference. First operand 11878 states and 32342 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:29,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:29,966 INFO L93 Difference]: Finished difference Result 12023 states and 32730 transitions. [2022-04-18 20:17:29,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:17:29,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2022-04-18 20:17:29,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:29,990 INFO L225 Difference]: With dead ends: 12023 [2022-04-18 20:17:29,990 INFO L226 Difference]: Without dead ends: 12023 [2022-04-18 20:17:29,991 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:29,991 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 44 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:29,991 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 159 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:17:30,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12023 states. [2022-04-18 20:17:30,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12023 to 12023. [2022-04-18 20:17:30,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12023 states, 11942 states have (on average 2.7407469435605427) internal successors, (32730), 12022 states have internal predecessors, (32730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:30,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12023 states to 12023 states and 32730 transitions. [2022-04-18 20:17:30,237 INFO L78 Accepts]: Start accepts. Automaton has 12023 states and 32730 transitions. Word has length 48 [2022-04-18 20:17:30,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:30,237 INFO L478 AbstractCegarLoop]: Abstraction has 12023 states and 32730 transitions. [2022-04-18 20:17:30,238 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:30,238 INFO L276 IsEmpty]: Start isEmpty. Operand 12023 states and 32730 transitions. [2022-04-18 20:17:30,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-18 20:17:30,241 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:30,242 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:30,242 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-18 20:17:30,242 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:30,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:30,242 INFO L85 PathProgramCache]: Analyzing trace with hash 650067638, now seen corresponding path program 1 times [2022-04-18 20:17:30,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:30,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058855716] [2022-04-18 20:17:30,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:30,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:30,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:30,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:30,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058855716] [2022-04-18 20:17:30,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058855716] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:30,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:30,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:17:30,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087198892] [2022-04-18 20:17:30,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:30,313 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:17:30,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:30,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:17:30,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:30,313 INFO L87 Difference]: Start difference. First operand 12023 states and 32730 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:30,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:30,720 INFO L93 Difference]: Finished difference Result 12315 states and 33531 transitions. [2022-04-18 20:17:30,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:17:30,720 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2022-04-18 20:17:30,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:30,746 INFO L225 Difference]: With dead ends: 12315 [2022-04-18 20:17:30,746 INFO L226 Difference]: Without dead ends: 12315 [2022-04-18 20:17:30,746 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:30,746 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 45 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:30,747 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 193 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 20:17:30,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12315 states. [2022-04-18 20:17:30,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12315 to 12252. [2022-04-18 20:17:30,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12252 states, 12171 states have (on average 2.7407772574151674) internal successors, (33358), 12251 states have internal predecessors, (33358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:30,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12252 states to 12252 states and 33358 transitions. [2022-04-18 20:17:30,947 INFO L78 Accepts]: Start accepts. Automaton has 12252 states and 33358 transitions. Word has length 48 [2022-04-18 20:17:30,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:30,947 INFO L478 AbstractCegarLoop]: Abstraction has 12252 states and 33358 transitions. [2022-04-18 20:17:30,948 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:30,948 INFO L276 IsEmpty]: Start isEmpty. Operand 12252 states and 33358 transitions. [2022-04-18 20:17:30,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-18 20:17:30,952 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:30,952 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:30,952 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-18 20:17:30,952 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:30,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:30,953 INFO L85 PathProgramCache]: Analyzing trace with hash -772345826, now seen corresponding path program 1 times [2022-04-18 20:17:30,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:30,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491767443] [2022-04-18 20:17:30,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:30,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:31,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:31,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:31,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491767443] [2022-04-18 20:17:31,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491767443] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:17:31,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823459158] [2022-04-18 20:17:31,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:31,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:17:31,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:17:31,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 20:17:31,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-18 20:17:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:31,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 20:17:31,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 20:17:31,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 20:17:31,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 20:17:31,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823459158] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:31,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 20:17:31,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-04-18 20:17:31,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758438039] [2022-04-18 20:17:31,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:31,333 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:17:31,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:31,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:17:31,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:17:31,334 INFO L87 Difference]: Start difference. First operand 12252 states and 33358 transitions. Second operand has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:31,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:31,475 INFO L93 Difference]: Finished difference Result 12166 states and 33121 transitions. [2022-04-18 20:17:31,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:17:31,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2022-04-18 20:17:31,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:31,502 INFO L225 Difference]: With dead ends: 12166 [2022-04-18 20:17:31,502 INFO L226 Difference]: Without dead ends: 12166 [2022-04-18 20:17:31,503 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:17:31,504 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 15 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:31,514 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 246 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:17:31,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12166 states. [2022-04-18 20:17:31,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12166 to 12166. [2022-04-18 20:17:31,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12166 states, 12089 states have (on average 2.739763421292084) internal successors, (33121), 12165 states have internal predecessors, (33121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:31,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12166 states to 12166 states and 33121 transitions. [2022-04-18 20:17:31,724 INFO L78 Accepts]: Start accepts. Automaton has 12166 states and 33121 transitions. Word has length 51 [2022-04-18 20:17:31,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:31,725 INFO L478 AbstractCegarLoop]: Abstraction has 12166 states and 33121 transitions. [2022-04-18 20:17:31,725 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:31,725 INFO L276 IsEmpty]: Start isEmpty. Operand 12166 states and 33121 transitions. [2022-04-18 20:17:31,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-18 20:17:31,729 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:31,729 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:31,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-18 20:17:31,930 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-04-18 20:17:31,930 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:31,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:31,931 INFO L85 PathProgramCache]: Analyzing trace with hash 627413281, now seen corresponding path program 1 times [2022-04-18 20:17:31,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:31,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898350435] [2022-04-18 20:17:31,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:31,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:32,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:32,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:32,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898350435] [2022-04-18 20:17:32,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898350435] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:32,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:32,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-18 20:17:32,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177122087] [2022-04-18 20:17:32,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:32,391 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 20:17:32,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:32,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 20:17:32,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-04-18 20:17:32,392 INFO L87 Difference]: Start difference. First operand 12166 states and 33121 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:34,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:34,544 INFO L93 Difference]: Finished difference Result 18728 states and 49436 transitions. [2022-04-18 20:17:34,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:17:34,545 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 52 [2022-04-18 20:17:34,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:34,583 INFO L225 Difference]: With dead ends: 18728 [2022-04-18 20:17:34,583 INFO L226 Difference]: Without dead ends: 18728 [2022-04-18 20:17:34,583 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-04-18 20:17:34,584 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 647 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 3403 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 3743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 3403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:34,584 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [647 Valid, 429 Invalid, 3743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 3403 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 20:17:34,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18728 states. [2022-04-18 20:17:34,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18728 to 12950. [2022-04-18 20:17:34,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12950 states, 12873 states have (on average 2.7528936533830497) internal successors, (35438), 12949 states have internal predecessors, (35438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:34,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12950 states to 12950 states and 35438 transitions. [2022-04-18 20:17:34,840 INFO L78 Accepts]: Start accepts. Automaton has 12950 states and 35438 transitions. Word has length 52 [2022-04-18 20:17:34,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:34,840 INFO L478 AbstractCegarLoop]: Abstraction has 12950 states and 35438 transitions. [2022-04-18 20:17:34,841 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:34,841 INFO L276 IsEmpty]: Start isEmpty. Operand 12950 states and 35438 transitions. [2022-04-18 20:17:34,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-18 20:17:34,846 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:34,846 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:34,846 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-18 20:17:34,846 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:34,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:34,847 INFO L85 PathProgramCache]: Analyzing trace with hash 962480601, now seen corresponding path program 2 times [2022-04-18 20:17:34,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:34,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802981618] [2022-04-18 20:17:34,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:34,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:35,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:35,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:35,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802981618] [2022-04-18 20:17:35,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802981618] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:35,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:35,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-18 20:17:35,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023647162] [2022-04-18 20:17:35,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:35,317 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 20:17:35,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:35,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 20:17:35,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-04-18 20:17:35,317 INFO L87 Difference]: Start difference. First operand 12950 states and 35438 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:37,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:37,432 INFO L93 Difference]: Finished difference Result 19434 states and 51435 transitions. [2022-04-18 20:17:37,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 20:17:37,432 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 52 [2022-04-18 20:17:37,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:37,471 INFO L225 Difference]: With dead ends: 19434 [2022-04-18 20:17:37,471 INFO L226 Difference]: Without dead ends: 19434 [2022-04-18 20:17:37,471 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-04-18 20:17:37,472 INFO L913 BasicCegarLoop]: 168 mSDtfsCounter, 901 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 3150 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 3703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 3150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:37,472 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [901 Valid, 412 Invalid, 3703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 3150 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 20:17:37,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19434 states. [2022-04-18 20:17:37,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19434 to 13279. [2022-04-18 20:17:37,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13279 states, 13202 states have (on average 2.7549613694894712) internal successors, (36371), 13278 states have internal predecessors, (36371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:37,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13279 states to 13279 states and 36371 transitions. [2022-04-18 20:17:37,727 INFO L78 Accepts]: Start accepts. Automaton has 13279 states and 36371 transitions. Word has length 52 [2022-04-18 20:17:37,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:37,727 INFO L478 AbstractCegarLoop]: Abstraction has 13279 states and 36371 transitions. [2022-04-18 20:17:37,727 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:37,728 INFO L276 IsEmpty]: Start isEmpty. Operand 13279 states and 36371 transitions. [2022-04-18 20:17:37,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-18 20:17:37,734 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:37,734 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:37,734 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-18 20:17:37,734 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:37,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:37,734 INFO L85 PathProgramCache]: Analyzing trace with hash -7956729, now seen corresponding path program 3 times [2022-04-18 20:17:37,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:37,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699270606] [2022-04-18 20:17:37,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:37,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:38,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:38,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:38,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699270606] [2022-04-18 20:17:38,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699270606] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:38,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:38,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-18 20:17:38,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589659144] [2022-04-18 20:17:38,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:38,168 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 20:17:38,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:38,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 20:17:38,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-04-18 20:17:38,169 INFO L87 Difference]: Start difference. First operand 13279 states and 36371 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:39,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:39,885 INFO L93 Difference]: Finished difference Result 21332 states and 56876 transitions. [2022-04-18 20:17:39,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 20:17:39,885 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 52 [2022-04-18 20:17:39,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:39,927 INFO L225 Difference]: With dead ends: 21332 [2022-04-18 20:17:39,927 INFO L226 Difference]: Without dead ends: 21332 [2022-04-18 20:17:39,935 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-04-18 20:17:39,936 INFO L913 BasicCegarLoop]: 164 mSDtfsCounter, 896 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 2355 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 2954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 2355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:39,936 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [896 Valid, 336 Invalid, 2954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 2355 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 20:17:39,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21332 states. [2022-04-18 20:17:40,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21332 to 13608. [2022-04-18 20:17:40,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13608 states, 13531 states have (on average 2.7569285344763874) internal successors, (37304), 13607 states have internal predecessors, (37304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:40,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13608 states to 13608 states and 37304 transitions. [2022-04-18 20:17:40,238 INFO L78 Accepts]: Start accepts. Automaton has 13608 states and 37304 transitions. Word has length 52 [2022-04-18 20:17:40,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:40,238 INFO L478 AbstractCegarLoop]: Abstraction has 13608 states and 37304 transitions. [2022-04-18 20:17:40,238 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:40,238 INFO L276 IsEmpty]: Start isEmpty. Operand 13608 states and 37304 transitions. [2022-04-18 20:17:40,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-18 20:17:40,245 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:40,245 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:40,245 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-18 20:17:40,245 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:40,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:40,246 INFO L85 PathProgramCache]: Analyzing trace with hash -84932207, now seen corresponding path program 4 times [2022-04-18 20:17:40,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:40,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621489527] [2022-04-18 20:17:40,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:40,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:40,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:40,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:40,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621489527] [2022-04-18 20:17:40,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621489527] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:40,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:40,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-18 20:17:40,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987299423] [2022-04-18 20:17:40,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:40,687 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 20:17:40,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:40,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 20:17:40,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-04-18 20:17:40,687 INFO L87 Difference]: Start difference. First operand 13608 states and 37304 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:42,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:42,438 INFO L93 Difference]: Finished difference Result 23034 states and 61757 transitions. [2022-04-18 20:17:42,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 20:17:42,438 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 52 [2022-04-18 20:17:42,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:42,486 INFO L225 Difference]: With dead ends: 23034 [2022-04-18 20:17:42,486 INFO L226 Difference]: Without dead ends: 23034 [2022-04-18 20:17:42,487 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-04-18 20:17:42,487 INFO L913 BasicCegarLoop]: 160 mSDtfsCounter, 856 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 2461 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 3037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 2461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:42,487 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [856 Valid, 344 Invalid, 3037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 2461 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 20:17:42,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23034 states. [2022-04-18 20:17:42,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23034 to 13741. [2022-04-18 20:17:42,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13741 states, 13664 states have (on average 2.75739168618267) internal successors, (37677), 13740 states have internal predecessors, (37677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:42,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13741 states to 13741 states and 37677 transitions. [2022-04-18 20:17:42,808 INFO L78 Accepts]: Start accepts. Automaton has 13741 states and 37677 transitions. Word has length 52 [2022-04-18 20:17:42,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:42,808 INFO L478 AbstractCegarLoop]: Abstraction has 13741 states and 37677 transitions. [2022-04-18 20:17:42,808 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:42,808 INFO L276 IsEmpty]: Start isEmpty. Operand 13741 states and 37677 transitions. [2022-04-18 20:17:42,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-18 20:17:42,816 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:42,816 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:42,816 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-18 20:17:42,816 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:42,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:42,817 INFO L85 PathProgramCache]: Analyzing trace with hash 485273249, now seen corresponding path program 5 times [2022-04-18 20:17:42,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:42,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989610903] [2022-04-18 20:17:42,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:42,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:43,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:43,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:43,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989610903] [2022-04-18 20:17:43,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989610903] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:43,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:43,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-18 20:17:43,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016994510] [2022-04-18 20:17:43,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:43,245 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 20:17:43,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:43,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 20:17:43,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-04-18 20:17:43,246 INFO L87 Difference]: Start difference. First operand 13741 states and 37677 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:45,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:45,211 INFO L93 Difference]: Finished difference Result 18166 states and 49289 transitions. [2022-04-18 20:17:45,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 20:17:45,212 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 52 [2022-04-18 20:17:45,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:45,246 INFO L225 Difference]: With dead ends: 18166 [2022-04-18 20:17:45,246 INFO L226 Difference]: Without dead ends: 18166 [2022-04-18 20:17:45,246 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2022-04-18 20:17:45,247 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 682 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 3201 mSolverCounterSat, 300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 3501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 300 IncrementalHoareTripleChecker+Valid, 3201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:45,247 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [682 Valid, 340 Invalid, 3501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [300 Valid, 3201 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 20:17:45,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18166 states. [2022-04-18 20:17:45,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18166 to 9775. [2022-04-18 20:17:45,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9775 states, 9704 states have (on average 2.698474855729596) internal successors, (26186), 9774 states have internal predecessors, (26186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:45,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9775 states to 9775 states and 26186 transitions. [2022-04-18 20:17:45,455 INFO L78 Accepts]: Start accepts. Automaton has 9775 states and 26186 transitions. Word has length 52 [2022-04-18 20:17:45,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:45,455 INFO L478 AbstractCegarLoop]: Abstraction has 9775 states and 26186 transitions. [2022-04-18 20:17:45,456 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:45,456 INFO L276 IsEmpty]: Start isEmpty. Operand 9775 states and 26186 transitions. [2022-04-18 20:17:45,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-18 20:17:45,460 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:45,460 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:45,460 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-18 20:17:45,460 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting t1Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:45,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:45,461 INFO L85 PathProgramCache]: Analyzing trace with hash 212353535, now seen corresponding path program 1 times [2022-04-18 20:17:45,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:45,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981655429] [2022-04-18 20:17:45,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:45,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:45,580 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 20:17:45,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:45,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981655429] [2022-04-18 20:17:45,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981655429] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:45,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:45,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-18 20:17:45,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970172651] [2022-04-18 20:17:45,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:45,581 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-18 20:17:45,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:45,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-18 20:17:45,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-04-18 20:17:45,582 INFO L87 Difference]: Start difference. First operand 9775 states and 26186 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:46,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:46,011 INFO L93 Difference]: Finished difference Result 9740 states and 26093 transitions. [2022-04-18 20:17:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 20:17:46,012 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2022-04-18 20:17:46,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:46,029 INFO L225 Difference]: With dead ends: 9740 [2022-04-18 20:17:46,029 INFO L226 Difference]: Without dead ends: 9740 [2022-04-18 20:17:46,030 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-04-18 20:17:46,031 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 183 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:46,031 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 183 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:17:46,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9740 states. [2022-04-18 20:17:46,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9740 to 9600. [2022-04-18 20:17:46,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9600 states, 9531 states have (on average 2.6986675060329453) internal successors, (25721), 9599 states have internal predecessors, (25721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:46,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9600 states to 9600 states and 25721 transitions. [2022-04-18 20:17:46,186 INFO L78 Accepts]: Start accepts. Automaton has 9600 states and 25721 transitions. Word has length 52 [2022-04-18 20:17:46,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:46,186 INFO L478 AbstractCegarLoop]: Abstraction has 9600 states and 25721 transitions. [2022-04-18 20:17:46,187 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:46,187 INFO L276 IsEmpty]: Start isEmpty. Operand 9600 states and 25721 transitions. [2022-04-18 20:17:46,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-18 20:17:46,191 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:46,191 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:46,192 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-18 20:17:46,192 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:46,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:46,192 INFO L85 PathProgramCache]: Analyzing trace with hash 552999807, now seen corresponding path program 1 times [2022-04-18 20:17:46,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:46,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363710107] [2022-04-18 20:17:46,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:46,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:46,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:46,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:46,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363710107] [2022-04-18 20:17:46,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363710107] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:46,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:46,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:17:46,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773336398] [2022-04-18 20:17:46,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:46,308 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:17:46,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:46,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:17:46,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:17:46,309 INFO L87 Difference]: Start difference. First operand 9600 states and 25721 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:46,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:46,736 INFO L93 Difference]: Finished difference Result 9565 states and 25628 transitions. [2022-04-18 20:17:46,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:17:46,737 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 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 52 [2022-04-18 20:17:46,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:46,754 INFO L225 Difference]: With dead ends: 9565 [2022-04-18 20:17:46,754 INFO L226 Difference]: Without dead ends: 9565 [2022-04-18 20:17:46,755 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-04-18 20:17:46,755 INFO L913 BasicCegarLoop]: 94 mSDtfsCounter, 347 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:46,755 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 159 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 20:17:46,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9565 states. [2022-04-18 20:17:46,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9565 to 9425. [2022-04-18 20:17:46,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9425 states, 9358 states have (on average 2.6988672793331907) internal successors, (25256), 9424 states have internal predecessors, (25256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:46,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9425 states to 9425 states and 25256 transitions. [2022-04-18 20:17:46,903 INFO L78 Accepts]: Start accepts. Automaton has 9425 states and 25256 transitions. Word has length 52 [2022-04-18 20:17:46,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:46,903 INFO L478 AbstractCegarLoop]: Abstraction has 9425 states and 25256 transitions. [2022-04-18 20:17:46,903 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:46,904 INFO L276 IsEmpty]: Start isEmpty. Operand 9425 states and 25256 transitions. [2022-04-18 20:17:46,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-04-18 20:17:46,908 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:46,909 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:46,909 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-18 20:17:46,909 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:46,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:46,909 INFO L85 PathProgramCache]: Analyzing trace with hash -802076079, now seen corresponding path program 1 times [2022-04-18 20:17:46,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:46,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273826253] [2022-04-18 20:17:46,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:46,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:46,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:46,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:46,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273826253] [2022-04-18 20:17:46,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273826253] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:17:46,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111045313] [2022-04-18 20:17:46,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:46,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:17:46,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:17:46,956 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 20:17:46,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-18 20:17:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:47,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 20:17:47,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 20:17:47,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 20:17:47,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 20:17:47,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111045313] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:47,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 20:17:47,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-04-18 20:17:47,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011115908] [2022-04-18 20:17:47,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:47,251 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:17:47,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:47,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:17:47,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:17:47,252 INFO L87 Difference]: Start difference. First operand 9425 states and 25256 transitions. Second operand has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:47,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:47,383 INFO L93 Difference]: Finished difference Result 11518 states and 31410 transitions. [2022-04-18 20:17:47,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:17:47,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2022-04-18 20:17:47,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:47,409 INFO L225 Difference]: With dead ends: 11518 [2022-04-18 20:17:47,409 INFO L226 Difference]: Without dead ends: 11518 [2022-04-18 20:17:47,409 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:17:47,410 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 103 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:47,410 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 293 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:17:47,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11518 states. [2022-04-18 20:17:47,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11518 to 10453. [2022-04-18 20:17:47,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10453 states, 10387 states have (on average 2.7220564166746897) internal successors, (28274), 10452 states have internal predecessors, (28274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:47,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10453 states to 10453 states and 28274 transitions. [2022-04-18 20:17:47,624 INFO L78 Accepts]: Start accepts. Automaton has 10453 states and 28274 transitions. Word has length 54 [2022-04-18 20:17:47,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:47,624 INFO L478 AbstractCegarLoop]: Abstraction has 10453 states and 28274 transitions. [2022-04-18 20:17:47,624 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:47,624 INFO L276 IsEmpty]: Start isEmpty. Operand 10453 states and 28274 transitions. [2022-04-18 20:17:47,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-04-18 20:17:47,630 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:47,630 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:47,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-18 20:17:47,831 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-04-18 20:17:47,831 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:47,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:47,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1985859367, now seen corresponding path program 1 times [2022-04-18 20:17:47,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:47,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526805023] [2022-04-18 20:17:47,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:47,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:47,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 20:17:47,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:47,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526805023] [2022-04-18 20:17:47,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526805023] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:47,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:47,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 20:17:47,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144656108] [2022-04-18 20:17:47,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:47,865 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:17:47,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:47,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:17:47,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:17:47,866 INFO L87 Difference]: Start difference. First operand 10453 states and 28274 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:47,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:47,950 INFO L93 Difference]: Finished difference Result 3362 states and 6995 transitions. [2022-04-18 20:17:47,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:17:47,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2022-04-18 20:17:47,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:47,956 INFO L225 Difference]: With dead ends: 3362 [2022-04-18 20:17:47,956 INFO L226 Difference]: Without dead ends: 3355 [2022-04-18 20:17:47,956 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:17:47,956 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 172 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:47,957 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 138 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:17:47,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-04-18 20:17:47,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-04-18 20:17:48,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3317 states have (on average 2.1049140789870364) internal successors, (6982), 3354 states have internal predecessors, (6982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:48,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 6982 transitions. [2022-04-18 20:17:48,010 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 6982 transitions. Word has length 58 [2022-04-18 20:17:48,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:48,010 INFO L478 AbstractCegarLoop]: Abstraction has 3355 states and 6982 transitions. [2022-04-18 20:17:48,010 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:48,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 6982 transitions. [2022-04-18 20:17:48,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-04-18 20:17:48,014 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:48,014 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:48,014 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-18 20:17:48,014 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:48,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:48,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1169220866, now seen corresponding path program 1 times [2022-04-18 20:17:48,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:48,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19801221] [2022-04-18 20:17:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:48,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:48,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:48,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:48,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19801221] [2022-04-18 20:17:48,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19801221] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:17:48,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557968691] [2022-04-18 20:17:48,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:48,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:17:48,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:17:48,071 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 20:17:48,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process