./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-1.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/stack-1.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 a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:14:06,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:14:06,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:14:06,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:14:06,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:14:06,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:14:06,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:14:06,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:14:06,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:14:06,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:14:06,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:14:06,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:14:06,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:14:06,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:14:06,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:14:06,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:14:06,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:14:06,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:14:06,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:14:06,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:14:06,600 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:14:06,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:14:06,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:14:06,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:14:06,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:14:06,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:14:06,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:14:06,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:14:06,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:14:06,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:14:06,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:14:06,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:14:06,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:14:06,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:14:06,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:14:06,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:14:06,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:14:06,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:14:06,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:14:06,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:14:06,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:14:06,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:14:06,618 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:14:06,646 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:14:06,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:14:06,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:14:06,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:14:06,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:14:06,650 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:14:06,650 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:14:06,650 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:14:06,650 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:14:06,651 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:14:06,651 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:14:06,651 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:14:06,651 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:14:06,651 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:14:06,652 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:14:06,653 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:14:06,653 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:14:06,653 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:14:06,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:14:06,654 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:14:06,654 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:14:06,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:14:06,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:14:06,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:14:06,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:14:06,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:14:06,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:14:06,656 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:14:06,656 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:14:06,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:14:06,656 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:14:06,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:14:06,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:14:06,657 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:14:06,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:14:06,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:14:06,658 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:14:06,658 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:14:06,658 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:14:06,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:14:06,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:14:06,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:14:06,659 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:14:06,659 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5e93db72222dd521789305cbf7823ac91f269c62c97020d54f95f5ba14d3fd2 [2022-04-18 20:14:06,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:14:06,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:14:06,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:14:06,934 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:14:06,935 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:14:06,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-1.i [2022-04-18 20:14:06,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d39cac736/5917d13de6284d17b946351c949761e8/FLAGf26ddf53f [2022-04-18 20:14:07,479 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:14:07,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-1.i [2022-04-18 20:14:07,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d39cac736/5917d13de6284d17b946351c949761e8/FLAGf26ddf53f [2022-04-18 20:14:07,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d39cac736/5917d13de6284d17b946351c949761e8 [2022-04-18 20:14:07,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:14:07,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:14:07,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:14:07,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:14:07,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:14:07,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:14:07" (1/1) ... [2022-04-18 20:14:07,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e628d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:07, skipping insertion in model container [2022-04-18 20:14:07,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:14:07" (1/1) ... [2022-04-18 20:14:07,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:14:08,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:14:08,480 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/stack-1.i[41520,41533] [2022-04-18 20:14:08,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:14:08,529 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:14:08,569 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/stack-1.i[41520,41533] [2022-04-18 20:14:08,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:14:08,648 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:14:08,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:08 WrapperNode [2022-04-18 20:14:08,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:14:08,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:14:08,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:14:08,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:14:08,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:08" (1/1) ... [2022-04-18 20:14:08,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:08" (1/1) ... [2022-04-18 20:14:08,728 INFO L137 Inliner]: procedures = 277, calls = 45, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 198 [2022-04-18 20:14:08,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:14:08,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:14:08,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:14:08,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:14:08,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:08" (1/1) ... [2022-04-18 20:14:08,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:08" (1/1) ... [2022-04-18 20:14:08,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:08" (1/1) ... [2022-04-18 20:14:08,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:08" (1/1) ... [2022-04-18 20:14:08,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:08" (1/1) ... [2022-04-18 20:14:08,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:08" (1/1) ... [2022-04-18 20:14:08,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:08" (1/1) ... [2022-04-18 20:14:08,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:14:08,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:14:08,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:14:08,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:14:08,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:08" (1/1) ... [2022-04-18 20:14:08,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:14:08,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:14:08,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 20:14:08,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 20:14:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-04-18 20:14:08,844 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-04-18 20:14:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-04-18 20:14:08,844 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-04-18 20:14:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:14:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:14:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:14:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:14:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 20:14:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:14:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:14:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:14:08,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:14:08,847 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 20:14:09,005 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:14:09,015 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:14:09,269 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:14:09,278 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:14:09,278 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 20:14:09,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:14:09 BoogieIcfgContainer [2022-04-18 20:14:09,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:14:09,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:14:09,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:14:09,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:14:09,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:14:07" (1/3) ... [2022-04-18 20:14:09,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169c3776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:14:09, skipping insertion in model container [2022-04-18 20:14:09,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:14:08" (2/3) ... [2022-04-18 20:14:09,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169c3776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:14:09, skipping insertion in model container [2022-04-18 20:14:09,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:14:09" (3/3) ... [2022-04-18 20:14:09,287 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-1.i [2022-04-18 20:14:09,292 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:14:09,292 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:14:09,292 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-04-18 20:14:09,292 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:14:09,411 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 20:14:09,463 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:14:09,470 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 20:14:09,471 INFO L341 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-04-18 20:14:09,486 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:14:09,500 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 231 transitions, 478 flow [2022-04-18 20:14:09,504 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 231 transitions, 478 flow [2022-04-18 20:14:09,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 228 places, 231 transitions, 478 flow [2022-04-18 20:14:09,614 INFO L129 PetriNetUnfolder]: 10/229 cut-off events. [2022-04-18 20:14:09,614 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 20:14:09,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 229 events. 10/229 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 545 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 177. Up to 3 conditions per place. [2022-04-18 20:14:09,633 INFO L116 LiptonReduction]: Number of co-enabled transitions 17640 [2022-04-18 20:14:14,360 INFO L131 LiptonReduction]: Checked pairs total: 67438 [2022-04-18 20:14:14,361 INFO L133 LiptonReduction]: Total number of compositions: 170 [2022-04-18 20:14:14,368 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 85 transitions, 186 flow [2022-04-18 20:14:14,596 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7191 states, 7100 states have (on average 3.0126760563380284) internal successors, (21390), 7190 states have internal predecessors, (21390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:14,617 INFO L276 IsEmpty]: Start isEmpty. Operand has 7191 states, 7100 states have (on average 3.0126760563380284) internal successors, (21390), 7190 states have internal predecessors, (21390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:14,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 20:14:14,622 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:14,622 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 20:14:14,623 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:14,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:14,627 INFO L85 PathProgramCache]: Analyzing trace with hash 827841526, now seen corresponding path program 1 times [2022-04-18 20:14:14,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:14,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548644524] [2022-04-18 20:14:14,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:14,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:14,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:14,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:14,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548644524] [2022-04-18 20:14:14,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548644524] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:14,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:14,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:14,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035142900] [2022-04-18 20:14:14,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:14,837 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 20:14:14,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:14,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 20:14:14,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 20:14:14,875 INFO L87 Difference]: Start difference. First operand has 7191 states, 7100 states have (on average 3.0126760563380284) internal successors, (21390), 7190 states have internal predecessors, (21390), 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, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:15,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:15,006 INFO L93 Difference]: Finished difference Result 7191 states and 21132 transitions. [2022-04-18 20:14:15,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 20:14:15,009 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-04-18 20:14:15,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:15,110 INFO L225 Difference]: With dead ends: 7191 [2022-04-18 20:14:15,110 INFO L226 Difference]: Without dead ends: 7190 [2022-04-18 20:14:15,111 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 20:14:15,114 INFO L913 BasicCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:15,115 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 20:14:15,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7190 states. [2022-04-18 20:14:15,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7190 to 7190. [2022-04-18 20:14:15,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7190 states, 7100 states have (on average 2.976056338028169) internal successors, (21130), 7189 states have internal predecessors, (21130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:15,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7190 states to 7190 states and 21130 transitions. [2022-04-18 20:14:15,448 INFO L78 Accepts]: Start accepts. Automaton has 7190 states and 21130 transitions. Word has length 5 [2022-04-18 20:14:15,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:15,449 INFO L478 AbstractCegarLoop]: Abstraction has 7190 states and 21130 transitions. [2022-04-18 20:14:15,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:15,450 INFO L276 IsEmpty]: Start isEmpty. Operand 7190 states and 21130 transitions. [2022-04-18 20:14:15,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 20:14:15,450 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:15,450 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-04-18 20:14:15,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 20:14:15,451 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:15,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:15,452 INFO L85 PathProgramCache]: Analyzing trace with hash -106717730, now seen corresponding path program 1 times [2022-04-18 20:14:15,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:15,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972708244] [2022-04-18 20:14:15,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:15,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:15,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:15,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:15,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972708244] [2022-04-18 20:14:15,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972708244] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:15,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:15,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:15,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043563111] [2022-04-18 20:14:15,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:15,512 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:15,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:15,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:15,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:15,513 INFO L87 Difference]: Start difference. First operand 7190 states and 21130 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:15,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:15,753 INFO L93 Difference]: Finished difference Result 9102 states and 25289 transitions. [2022-04-18 20:14:15,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:15,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-04-18 20:14:15,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:15,806 INFO L225 Difference]: With dead ends: 9102 [2022-04-18 20:14:15,806 INFO L226 Difference]: Without dead ends: 9102 [2022-04-18 20:14:15,807 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:15,808 INFO L913 BasicCegarLoop]: 44 mSDtfsCounter, 62 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:15,808 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 68 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:15,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9102 states. [2022-04-18 20:14:16,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9102 to 7324. [2022-04-18 20:14:16,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7324 states, 7258 states have (on average 2.807384954532929) internal successors, (20376), 7323 states have internal predecessors, (20376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:16,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7324 states to 7324 states and 20376 transitions. [2022-04-18 20:14:16,081 INFO L78 Accepts]: Start accepts. Automaton has 7324 states and 20376 transitions. Word has length 6 [2022-04-18 20:14:16,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:16,082 INFO L478 AbstractCegarLoop]: Abstraction has 7324 states and 20376 transitions. [2022-04-18 20:14:16,082 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:16,082 INFO L276 IsEmpty]: Start isEmpty. Operand 7324 states and 20376 transitions. [2022-04-18 20:14:16,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 20:14:16,084 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:16,084 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:16,084 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 20:14:16,084 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:16,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:16,085 INFO L85 PathProgramCache]: Analyzing trace with hash 2141797213, now seen corresponding path program 1 times [2022-04-18 20:14:16,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:16,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874499595] [2022-04-18 20:14:16,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:16,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:16,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:16,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:16,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874499595] [2022-04-18 20:14:16,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874499595] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:16,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:16,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:14:16,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868168136] [2022-04-18 20:14:16,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:16,250 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:14:16,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:16,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:14:16,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:14:16,251 INFO L87 Difference]: Start difference. First operand 7324 states and 20376 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 20:14:16,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:16,848 INFO L93 Difference]: Finished difference Result 11796 states and 32424 transitions. [2022-04-18 20:14:16,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:14:16,849 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 20:14:16,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:16,931 INFO L225 Difference]: With dead ends: 11796 [2022-04-18 20:14:16,931 INFO L226 Difference]: Without dead ends: 11796 [2022-04-18 20:14:16,932 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 20:14:16,934 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 222 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:16,936 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 243 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 20:14:16,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11796 states. [2022-04-18 20:14:17,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11796 to 10696. [2022-04-18 20:14:17,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10696 states, 10630 states have (on average 2.84722483537159) internal successors, (30266), 10695 states have internal predecessors, (30266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:17,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10696 states to 10696 states and 30266 transitions. [2022-04-18 20:14:17,258 INFO L78 Accepts]: Start accepts. Automaton has 10696 states and 30266 transitions. Word has length 10 [2022-04-18 20:14:17,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:17,259 INFO L478 AbstractCegarLoop]: Abstraction has 10696 states and 30266 transitions. [2022-04-18 20:14:17,259 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 20:14:17,260 INFO L276 IsEmpty]: Start isEmpty. Operand 10696 states and 30266 transitions. [2022-04-18 20:14:17,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 20:14:17,267 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:17,267 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:17,267 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 20:14:17,267 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:17,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:17,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1336330016, now seen corresponding path program 1 times [2022-04-18 20:14:17,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:17,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736309644] [2022-04-18 20:14:17,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:17,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:17,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:17,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:17,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736309644] [2022-04-18 20:14:17,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736309644] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:17,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:17,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:14:17,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907822831] [2022-04-18 20:14:17,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:17,378 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:14:17,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:17,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:14:17,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:14:17,379 INFO L87 Difference]: Start difference. First operand 10696 states and 30266 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:17,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:17,818 INFO L93 Difference]: Finished difference Result 11663 states and 33021 transitions. [2022-04-18 20:14:17,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:14:17,819 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-04-18 20:14:17,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:17,856 INFO L225 Difference]: With dead ends: 11663 [2022-04-18 20:14:17,856 INFO L226 Difference]: Without dead ends: 11663 [2022-04-18 20:14:17,857 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 20:14:17,857 INFO L913 BasicCegarLoop]: 70 mSDtfsCounter, 124 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:17,858 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 144 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:14:17,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11663 states. [2022-04-18 20:14:18,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11663 to 11663. [2022-04-18 20:14:18,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11663 states, 11597 states have (on average 2.847374320945072) internal successors, (33021), 11662 states have internal predecessors, (33021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:18,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11663 states to 11663 states and 33021 transitions. [2022-04-18 20:14:18,196 INFO L78 Accepts]: Start accepts. Automaton has 11663 states and 33021 transitions. Word has length 16 [2022-04-18 20:14:18,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:18,196 INFO L478 AbstractCegarLoop]: Abstraction has 11663 states and 33021 transitions. [2022-04-18 20:14:18,196 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:18,197 INFO L276 IsEmpty]: Start isEmpty. Operand 11663 states and 33021 transitions. [2022-04-18 20:14:18,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-18 20:14:18,199 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:18,199 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:18,200 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 20:14:18,200 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:18,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:18,201 INFO L85 PathProgramCache]: Analyzing trace with hash 2034043921, now seen corresponding path program 1 times [2022-04-18 20:14:18,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:18,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512375211] [2022-04-18 20:14:18,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:18,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:18,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:18,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:18,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512375211] [2022-04-18 20:14:18,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512375211] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:18,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:18,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 20:14:18,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591595830] [2022-04-18 20:14:18,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:18,233 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:18,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:18,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:18,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:18,234 INFO L87 Difference]: Start difference. First operand 11663 states and 33021 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:18,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:18,476 INFO L93 Difference]: Finished difference Result 19790 states and 56646 transitions. [2022-04-18 20:14:18,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:18,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-04-18 20:14:18,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:18,543 INFO L225 Difference]: With dead ends: 19790 [2022-04-18 20:14:18,544 INFO L226 Difference]: Without dead ends: 19790 [2022-04-18 20:14:18,544 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:18,545 INFO L913 BasicCegarLoop]: 59 mSDtfsCounter, 67 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:18,545 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 100 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:18,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19790 states. [2022-04-18 20:14:18,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19790 to 11861. [2022-04-18 20:14:18,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11861 states, 11795 states have (on average 2.8485799067401443) internal successors, (33599), 11860 states have internal predecessors, (33599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:18,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11861 states to 11861 states and 33599 transitions. [2022-04-18 20:14:18,941 INFO L78 Accepts]: Start accepts. Automaton has 11861 states and 33599 transitions. Word has length 17 [2022-04-18 20:14:18,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:18,942 INFO L478 AbstractCegarLoop]: Abstraction has 11861 states and 33599 transitions. [2022-04-18 20:14:18,942 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:18,942 INFO L276 IsEmpty]: Start isEmpty. Operand 11861 states and 33599 transitions. [2022-04-18 20:14:18,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-18 20:14:18,947 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:18,947 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 20:14:18,948 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 20:14:18,948 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:18,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:18,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1954477653, now seen corresponding path program 1 times [2022-04-18 20:14:18,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:18,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903599994] [2022-04-18 20:14:18,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:18,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:19,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:19,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:19,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903599994] [2022-04-18 20:14:19,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903599994] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:19,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:19,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:19,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238860322] [2022-04-18 20:14:19,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:19,005 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:19,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:19,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:19,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:19,006 INFO L87 Difference]: Start difference. First operand 11861 states and 33599 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 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 20:14:19,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:19,136 INFO L93 Difference]: Finished difference Result 14610 states and 41039 transitions. [2022-04-18 20:14:19,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:19,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 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 20:14:19,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:19,187 INFO L225 Difference]: With dead ends: 14610 [2022-04-18 20:14:19,188 INFO L226 Difference]: Without dead ends: 14598 [2022-04-18 20:14:19,188 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:19,191 INFO L913 BasicCegarLoop]: 45 mSDtfsCounter, 42 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:19,191 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 82 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:19,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14598 states. [2022-04-18 20:14:19,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14598 to 14113. [2022-04-18 20:14:19,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14113 states, 14047 states have (on average 2.8603972378443796) internal successors, (40180), 14112 states have internal predecessors, (40180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:19,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14113 states to 14113 states and 40180 transitions. [2022-04-18 20:14:19,570 INFO L78 Accepts]: Start accepts. Automaton has 14113 states and 40180 transitions. Word has length 18 [2022-04-18 20:14:19,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:19,571 INFO L478 AbstractCegarLoop]: Abstraction has 14113 states and 40180 transitions. [2022-04-18 20:14:19,571 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 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 20:14:19,571 INFO L276 IsEmpty]: Start isEmpty. Operand 14113 states and 40180 transitions. [2022-04-18 20:14:19,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-04-18 20:14:19,573 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:19,573 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 20:14:19,574 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 20:14:19,574 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:19,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:19,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1842775555, now seen corresponding path program 1 times [2022-04-18 20:14:19,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:19,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905268573] [2022-04-18 20:14:19,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:19,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:19,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:19,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:19,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905268573] [2022-04-18 20:14:19,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905268573] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:19,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:19,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:14:19,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849317414] [2022-04-18 20:14:19,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:19,738 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:14:19,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:19,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:14:19,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:14:19,738 INFO L87 Difference]: Start difference. First operand 14113 states and 40180 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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 20:14:20,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:20,356 INFO L93 Difference]: Finished difference Result 15382 states and 44012 transitions. [2022-04-18 20:14:20,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:14:20,357 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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 20:14:20,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:20,407 INFO L225 Difference]: With dead ends: 15382 [2022-04-18 20:14:20,407 INFO L226 Difference]: Without dead ends: 15382 [2022-04-18 20:14:20,408 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 20:14:20,408 INFO L913 BasicCegarLoop]: 64 mSDtfsCounter, 270 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:20,409 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 184 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 20:14:20,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15382 states. [2022-04-18 20:14:20,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15382 to 14443. [2022-04-18 20:14:20,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14443 states, 14385 states have (on average 2.8766075773375044) internal successors, (41380), 14442 states have internal predecessors, (41380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14443 states to 14443 states and 41380 transitions. [2022-04-18 20:14:20,768 INFO L78 Accepts]: Start accepts. Automaton has 14443 states and 41380 transitions. Word has length 20 [2022-04-18 20:14:20,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:20,769 INFO L478 AbstractCegarLoop]: Abstraction has 14443 states and 41380 transitions. [2022-04-18 20:14:20,769 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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 20:14:20,769 INFO L276 IsEmpty]: Start isEmpty. Operand 14443 states and 41380 transitions. [2022-04-18 20:14:20,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-04-18 20:14:20,771 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:20,772 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 20:14:20,772 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 20:14:20,772 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:20,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:20,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1718220326, now seen corresponding path program 1 times [2022-04-18 20:14:20,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:20,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091653226] [2022-04-18 20:14:20,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:20,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:21,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:21,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:21,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091653226] [2022-04-18 20:14:21,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091653226] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:21,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:21,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:14:21,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122838702] [2022-04-18 20:14:21,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:21,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:14:21,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:21,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:14:21,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:14:21,015 INFO L87 Difference]: Start difference. First operand 14443 states and 41380 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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 20:14:21,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:21,540 INFO L93 Difference]: Finished difference Result 13325 states and 38055 transitions. [2022-04-18 20:14:21,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 20:14:21,541 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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 20:14:21,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:21,598 INFO L225 Difference]: With dead ends: 13325 [2022-04-18 20:14:21,598 INFO L226 Difference]: Without dead ends: 13325 [2022-04-18 20:14:21,598 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 20:14:21,599 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 405 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:21,599 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 245 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:14:21,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13325 states. [2022-04-18 20:14:21,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13325 to 8643. [2022-04-18 20:14:21,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8643 states, 8611 states have (on average 2.8051329694576705) internal successors, (24155), 8642 states have internal predecessors, (24155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:21,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8643 states to 8643 states and 24155 transitions. [2022-04-18 20:14:21,796 INFO L78 Accepts]: Start accepts. Automaton has 8643 states and 24155 transitions. Word has length 20 [2022-04-18 20:14:21,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:21,797 INFO L478 AbstractCegarLoop]: Abstraction has 8643 states and 24155 transitions. [2022-04-18 20:14:21,797 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 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 20:14:21,797 INFO L276 IsEmpty]: Start isEmpty. Operand 8643 states and 24155 transitions. [2022-04-18 20:14:21,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:14:21,799 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:21,800 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 20:14:21,800 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 20:14:21,800 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:21,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:21,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1034623688, now seen corresponding path program 1 times [2022-04-18 20:14:21,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:21,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449834998] [2022-04-18 20:14:21,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:21,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:21,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:21,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:21,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449834998] [2022-04-18 20:14:21,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449834998] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:21,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:21,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:21,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526962045] [2022-04-18 20:14:21,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:21,839 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:21,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:21,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:21,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:21,840 INFO L87 Difference]: Start difference. First operand 8643 states and 24155 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 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 20:14:21,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:21,960 INFO L93 Difference]: Finished difference Result 8774 states and 24531 transitions. [2022-04-18 20:14:21,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:21,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 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 20:14:21,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:22,086 INFO L225 Difference]: With dead ends: 8774 [2022-04-18 20:14:22,089 INFO L226 Difference]: Without dead ends: 8774 [2022-04-18 20:14:22,089 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:22,090 INFO L913 BasicCegarLoop]: 49 mSDtfsCounter, 37 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:22,091 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 72 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:22,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8774 states. [2022-04-18 20:14:22,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8774 to 8774. [2022-04-18 20:14:22,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8774 states, 8746 states have (on average 2.804825062885891) internal successors, (24531), 8773 states have internal predecessors, (24531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:22,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8774 states to 8774 states and 24531 transitions. [2022-04-18 20:14:22,239 INFO L78 Accepts]: Start accepts. Automaton has 8774 states and 24531 transitions. Word has length 22 [2022-04-18 20:14:22,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:22,239 INFO L478 AbstractCegarLoop]: Abstraction has 8774 states and 24531 transitions. [2022-04-18 20:14:22,239 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 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 20:14:22,240 INFO L276 IsEmpty]: Start isEmpty. Operand 8774 states and 24531 transitions. [2022-04-18 20:14:22,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-04-18 20:14:22,242 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:22,242 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] [2022-04-18 20:14:22,243 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 20:14:22,243 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:22,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:22,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1136416870, now seen corresponding path program 1 times [2022-04-18 20:14:22,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:22,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347077959] [2022-04-18 20:14:22,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:22,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:22,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:22,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:22,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347077959] [2022-04-18 20:14:22,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347077959] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:22,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:22,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 20:14:22,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641100564] [2022-04-18 20:14:22,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:22,310 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:22,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:22,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:22,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:22,311 INFO L87 Difference]: Start difference. First operand 8774 states and 24531 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:22,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:22,364 INFO L93 Difference]: Finished difference Result 1529 states and 3796 transitions. [2022-04-18 20:14:22,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:22,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2022-04-18 20:14:22,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:22,369 INFO L225 Difference]: With dead ends: 1529 [2022-04-18 20:14:22,370 INFO L226 Difference]: Without dead ends: 1529 [2022-04-18 20:14:22,370 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:22,370 INFO L913 BasicCegarLoop]: 40 mSDtfsCounter, 44 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:22,371 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 49 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 20:14:22,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2022-04-18 20:14:22,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1321. [2022-04-18 20:14:22,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1316 states have (on average 2.4498480243161094) internal successors, (3224), 1320 states have internal predecessors, (3224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:22,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 3224 transitions. [2022-04-18 20:14:22,389 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 3224 transitions. Word has length 27 [2022-04-18 20:14:22,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:22,390 INFO L478 AbstractCegarLoop]: Abstraction has 1321 states and 3224 transitions. [2022-04-18 20:14:22,390 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:22,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 3224 transitions. [2022-04-18 20:14:22,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-04-18 20:14:22,395 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:22,396 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] [2022-04-18 20:14:22,396 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 20:14:22,396 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:22,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:22,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1560069339, now seen corresponding path program 1 times [2022-04-18 20:14:22,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:22,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997278096] [2022-04-18 20:14:22,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:22,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:22,448 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 20:14:22,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:22,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997278096] [2022-04-18 20:14:22,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997278096] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:14:22,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227828412] [2022-04-18 20:14:22,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:22,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:14:22,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:14:22,455 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 20:14:22,470 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 20:14:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:22,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 20:14:22,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 20:14:22,674 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 20:14:22,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 20:14:22,795 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 20:14:22,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227828412] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 20:14:22,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1034871904] [2022-04-18 20:14:22,803 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-18 20:14:22,805 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 20:14:22,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-04-18 20:14:22,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484819839] [2022-04-18 20:14:22,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 20:14:22,806 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-18 20:14:22,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:22,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-18 20:14:22,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-04-18 20:14:22,807 INFO L87 Difference]: Start difference. First operand 1321 states and 3224 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:22,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:22,974 INFO L93 Difference]: Finished difference Result 3430 states and 8169 transitions. [2022-04-18 20:14:22,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:14:22,975 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 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 37 [2022-04-18 20:14:22,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:22,980 INFO L225 Difference]: With dead ends: 3430 [2022-04-18 20:14:22,981 INFO L226 Difference]: Without dead ends: 3430 [2022-04-18 20:14:22,981 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-04-18 20:14:22,981 INFO L913 BasicCegarLoop]: 38 mSDtfsCounter, 274 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:22,982 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 152 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:22,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3430 states. [2022-04-18 20:14:23,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3430 to 3402. [2022-04-18 20:14:23,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3402 states, 3395 states have (on average 2.3991163475699557) internal successors, (8145), 3401 states have internal predecessors, (8145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:23,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 8145 transitions. [2022-04-18 20:14:23,029 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 8145 transitions. Word has length 37 [2022-04-18 20:14:23,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:23,029 INFO L478 AbstractCegarLoop]: Abstraction has 3402 states and 8145 transitions. [2022-04-18 20:14:23,030 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:23,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 8145 transitions. [2022-04-18 20:14:23,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-04-18 20:14:23,033 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:23,033 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] [2022-04-18 20:14:23,062 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 20:14:23,251 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,SelfDestructingSolverStorable10 [2022-04-18 20:14:23,252 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:23,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:23,252 INFO L85 PathProgramCache]: Analyzing trace with hash -709116370, now seen corresponding path program 1 times [2022-04-18 20:14:23,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:23,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362080644] [2022-04-18 20:14:23,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:23,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:23,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:23,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:23,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362080644] [2022-04-18 20:14:23,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362080644] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:23,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:23,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:14:23,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026779526] [2022-04-18 20:14:23,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:23,291 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:23,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:23,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:23,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:23,292 INFO L87 Difference]: Start difference. First operand 3402 states and 8145 transitions. Second operand has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:23,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:23,363 INFO L93 Difference]: Finished difference Result 3374 states and 8071 transitions. [2022-04-18 20:14:23,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:23,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2022-04-18 20:14:23,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:23,370 INFO L225 Difference]: With dead ends: 3374 [2022-04-18 20:14:23,370 INFO L226 Difference]: Without dead ends: 3374 [2022-04-18 20:14:23,371 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:23,371 INFO L913 BasicCegarLoop]: 39 mSDtfsCounter, 14 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:23,372 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 61 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:23,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3374 states. [2022-04-18 20:14:23,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3374 to 3374. [2022-04-18 20:14:23,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3374 states, 3370 states have (on average 2.3949554896142433) internal successors, (8071), 3373 states have internal predecessors, (8071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:23,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 8071 transitions. [2022-04-18 20:14:23,415 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 8071 transitions. Word has length 39 [2022-04-18 20:14:23,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:23,415 INFO L478 AbstractCegarLoop]: Abstraction has 3374 states and 8071 transitions. [2022-04-18 20:14:23,415 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:23,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 8071 transitions. [2022-04-18 20:14:23,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-18 20:14:23,421 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:23,421 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 20:14:23,421 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 20:14:23,422 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:23,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:23,422 INFO L85 PathProgramCache]: Analyzing trace with hash 357782984, now seen corresponding path program 1 times [2022-04-18 20:14:23,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:23,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498643626] [2022-04-18 20:14:23,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:23,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:23,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:23,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:23,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498643626] [2022-04-18 20:14:23,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498643626] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:23,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:23,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:14:23,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695346368] [2022-04-18 20:14:23,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:23,540 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:14:23,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:23,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:14:23,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:14:23,541 INFO L87 Difference]: Start difference. First operand 3374 states and 8071 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 20:14:23,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:23,745 INFO L93 Difference]: Finished difference Result 3346 states and 7997 transitions. [2022-04-18 20:14:23,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:14:23,746 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 20:14:23,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:23,751 INFO L225 Difference]: With dead ends: 3346 [2022-04-18 20:14:23,751 INFO L226 Difference]: Without dead ends: 3296 [2022-04-18 20:14:23,751 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 20:14:23,752 INFO L913 BasicCegarLoop]: 26 mSDtfsCounter, 20 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:23,752 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 50 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:14:23,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2022-04-18 20:14:23,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 3296. [2022-04-18 20:14:23,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3296 states, 3295 states have (on average 2.3960546282245825) internal successors, (7895), 3295 states have internal predecessors, (7895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:23,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3296 states to 3296 states and 7895 transitions. [2022-04-18 20:14:23,798 INFO L78 Accepts]: Start accepts. Automaton has 3296 states and 7895 transitions. Word has length 48 [2022-04-18 20:14:23,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:23,799 INFO L478 AbstractCegarLoop]: Abstraction has 3296 states and 7895 transitions. [2022-04-18 20:14:23,799 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 20:14:23,799 INFO L276 IsEmpty]: Start isEmpty. Operand 3296 states and 7895 transitions. [2022-04-18 20:14:23,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-18 20:14:23,804 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:23,805 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:23,805 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 20:14:23,805 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:23,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:23,806 INFO L85 PathProgramCache]: Analyzing trace with hash -971213850, now seen corresponding path program 1 times [2022-04-18 20:14:23,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:23,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277250339] [2022-04-18 20:14:23,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:23,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:23,855 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-04-18 20:14:23,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:23,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277250339] [2022-04-18 20:14:23,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277250339] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:14:23,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605575815] [2022-04-18 20:14:23,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:23,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:14:23,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:14:23,857 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 20:14:23,858 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 20:14:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:23,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 4 conjunts are in the unsatisfiable core [2022-04-18 20:14:24,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 20:14:24,096 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-04-18 20:14:24,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 20:14:24,213 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-04-18 20:14:24,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605575815] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 20:14:24,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [522798434] [2022-04-18 20:14:24,214 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-18 20:14:24,215 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 20:14:24,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-04-18 20:14:24,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585166668] [2022-04-18 20:14:24,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 20:14:24,216 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 20:14:24,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:24,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 20:14:24,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-04-18 20:14:24,217 INFO L87 Difference]: Start difference. First operand 3296 states and 7895 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:24,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:24,487 INFO L93 Difference]: Finished difference Result 7058 states and 16713 transitions. [2022-04-18 20:14:24,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 20:14:24,488 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 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 20:14:24,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:24,499 INFO L225 Difference]: With dead ends: 7058 [2022-04-18 20:14:24,500 INFO L226 Difference]: Without dead ends: 7058 [2022-04-18 20:14:24,500 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2022-04-18 20:14:24,500 INFO L913 BasicCegarLoop]: 32 mSDtfsCounter, 244 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:24,501 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 239 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:14:24,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7058 states. [2022-04-18 20:14:24,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7058 to 4908. [2022-04-18 20:14:24,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4908 states, 4907 states have (on average 2.3977990625636845) internal successors, (11766), 4907 states have internal predecessors, (11766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:24,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4908 states to 4908 states and 11766 transitions. [2022-04-18 20:14:24,585 INFO L78 Accepts]: Start accepts. Automaton has 4908 states and 11766 transitions. Word has length 52 [2022-04-18 20:14:24,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:24,586 INFO L478 AbstractCegarLoop]: Abstraction has 4908 states and 11766 transitions. [2022-04-18 20:14:24,586 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:24,586 INFO L276 IsEmpty]: Start isEmpty. Operand 4908 states and 11766 transitions. [2022-04-18 20:14:24,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-04-18 20:14:24,594 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:24,595 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:24,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-04-18 20:14:24,807 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,SelfDestructingSolverStorable13 [2022-04-18 20:14:24,807 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:24,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:24,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1843311452, now seen corresponding path program 1 times [2022-04-18 20:14:24,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:24,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959868149] [2022-04-18 20:14:24,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:24,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:24,875 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-18 20:14:24,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:24,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959868149] [2022-04-18 20:14:24,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959868149] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:24,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:14:24,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 20:14:24,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960302446] [2022-04-18 20:14:24,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:24,876 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:14:24,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:24,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:14:24,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:24,877 INFO L87 Difference]: Start difference. First operand 4908 states and 11766 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:24,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:24,946 INFO L93 Difference]: Finished difference Result 4959 states and 11838 transitions. [2022-04-18 20:14:24,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:14:24,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 76 [2022-04-18 20:14:24,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:24,954 INFO L225 Difference]: With dead ends: 4959 [2022-04-18 20:14:24,954 INFO L226 Difference]: Without dead ends: 4908 [2022-04-18 20:14:24,955 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:14:24,956 INFO L913 BasicCegarLoop]: 32 mSDtfsCounter, 10 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:24,957 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 59 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:14:24,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4908 states. [2022-04-18 20:14:25,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4908 to 3102. [2022-04-18 20:14:25,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3102 states, 3101 states have (on average 2.382457271847791) internal successors, (7388), 3101 states have internal predecessors, (7388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:25,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3102 states to 3102 states and 7388 transitions. [2022-04-18 20:14:25,011 INFO L78 Accepts]: Start accepts. Automaton has 3102 states and 7388 transitions. Word has length 76 [2022-04-18 20:14:25,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:25,011 INFO L478 AbstractCegarLoop]: Abstraction has 3102 states and 7388 transitions. [2022-04-18 20:14:25,012 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:25,012 INFO L276 IsEmpty]: Start isEmpty. Operand 3102 states and 7388 transitions. [2022-04-18 20:14:25,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-04-18 20:14:25,017 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:14:25,017 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:25,018 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 20:14:25,018 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2022-04-18 20:14:25,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:14:25,018 INFO L85 PathProgramCache]: Analyzing trace with hash 90954849, now seen corresponding path program 2 times [2022-04-18 20:14:25,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:14:25,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302181433] [2022-04-18 20:14:25,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:14:25,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:14:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:14:25,156 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:14:25,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:14:25,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302181433] [2022-04-18 20:14:25,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302181433] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:14:25,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679900063] [2022-04-18 20:14:25,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-04-18 20:14:25,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:14:25,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:14:25,158 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 20:14:25,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-18 20:14:25,288 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-04-18 20:14:25,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 20:14:25,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 17 conjunts are in the unsatisfiable core [2022-04-18 20:14:25,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 20:14:25,501 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-04-18 20:14:25,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:14:25,525 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-04-18 20:14:25,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:14:25,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:14:25,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 20:14:25,556 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 20:14:25,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-04-18 20:14:25,573 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-04-18 20:14:25,573 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 20:14:25,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679900063] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:14:25,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 20:14:25,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 11 [2022-04-18 20:14:25,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057374321] [2022-04-18 20:14:25,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:14:25,575 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:14:25,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:14:25,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:14:25,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-04-18 20:14:25,577 INFO L87 Difference]: Start difference. First operand 3102 states and 7388 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:25,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:14:25,756 INFO L93 Difference]: Finished difference Result 3071 states and 7323 transitions. [2022-04-18 20:14:25,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:14:25,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 97 [2022-04-18 20:14:25,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:14:25,757 INFO L225 Difference]: With dead ends: 3071 [2022-04-18 20:14:25,757 INFO L226 Difference]: Without dead ends: 0 [2022-04-18 20:14:25,757 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-04-18 20:14:25,758 INFO L913 BasicCegarLoop]: 46 mSDtfsCounter, 101 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:14:25,758 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 84 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:14:25,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-18 20:14:25,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-18 20:14:25,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:25,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-18 20:14:25,759 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2022-04-18 20:14:25,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:14:25,759 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-18 20:14:25,759 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:14:25,759 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-18 20:14:25,759 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-18 20:14:25,761 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2022-04-18 20:14:25,762 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2022-04-18 20:14:25,762 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 26 remaining) [2022-04-18 20:14:25,762 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 26 remaining) [2022-04-18 20:14:25,762 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2022-04-18 20:14:25,762 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2022-04-18 20:14:25,762 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2022-04-18 20:14:25,762 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2022-04-18 20:14:25,762 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2022-04-18 20:14:25,763 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2022-04-18 20:14:25,763 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2022-04-18 20:14:25,763 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2022-04-18 20:14:25,763 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2022-04-18 20:14:25,763 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2022-04-18 20:14:25,763 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2022-04-18 20:14:25,763 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2022-04-18 20:14:25,763 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2022-04-18 20:14:25,763 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2022-04-18 20:14:25,764 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2022-04-18 20:14:25,764 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2022-04-18 20:14:25,764 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2022-04-18 20:14:25,764 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2022-04-18 20:14:25,764 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2022-04-18 20:14:25,764 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2022-04-18 20:14:25,764 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2022-04-18 20:14:25,764 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2022-04-18 20:14:25,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-18 20:14:25,975 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-04-18 20:14:25,977 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:14:25,981 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 20:14:25,981 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 20:14:25,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:14:25 BasicIcfg [2022-04-18 20:14:25,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 20:14:25,984 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 20:14:25,984 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 20:14:25,984 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 20:14:25,985 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:14:09" (3/4) ... [2022-04-18 20:14:25,986 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 20:14:25,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2022-04-18 20:14:25,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2022-04-18 20:14:25,994 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-04-18 20:14:25,995 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-04-18 20:14:25,995 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 20:14:25,995 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 20:14:26,017 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2022-04-18 20:14:26,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 20:14:26,018 INFO L158 Benchmark]: Toolchain (without parser) took 18050.16ms. Allocated memory was 102.8MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 61.7MB in the beginning and 845.5MB in the end (delta: -783.8MB). Peak memory consumption was 652.3MB. Max. memory is 16.1GB. [2022-04-18 20:14:26,018 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 20:14:26,019 INFO L158 Benchmark]: CACSL2BoogieTranslator took 680.28ms. Allocated memory is still 102.8MB. Free memory was 61.4MB in the beginning and 58.4MB in the end (delta: 3.0MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2022-04-18 20:14:26,019 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.64ms. Allocated memory is still 102.8MB. Free memory was 58.4MB in the beginning and 55.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 20:14:26,019 INFO L158 Benchmark]: Boogie Preprocessor took 45.67ms. Allocated memory is still 102.8MB. Free memory was 55.3MB in the beginning and 53.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 20:14:26,020 INFO L158 Benchmark]: RCFGBuilder took 505.07ms. Allocated memory was 102.8MB in the beginning and 140.5MB in the end (delta: 37.7MB). Free memory was 53.2MB in the beginning and 106.5MB in the end (delta: -53.2MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-04-18 20:14:26,020 INFO L158 Benchmark]: TraceAbstraction took 16701.59ms. Allocated memory was 140.5MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 105.8MB in the beginning and 848.6MB in the end (delta: -742.8MB). Peak memory consumption was 656.9MB. Max. memory is 16.1GB. [2022-04-18 20:14:26,020 INFO L158 Benchmark]: Witness Printer took 33.80ms. Allocated memory is still 1.5GB. Free memory was 848.6MB in the beginning and 845.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 20:14:26,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 680.28ms. Allocated memory is still 102.8MB. Free memory was 61.4MB in the beginning and 58.4MB in the end (delta: 3.0MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.64ms. Allocated memory is still 102.8MB. Free memory was 58.4MB in the beginning and 55.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.67ms. Allocated memory is still 102.8MB. Free memory was 55.3MB in the beginning and 53.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 505.07ms. Allocated memory was 102.8MB in the beginning and 140.5MB in the end (delta: 37.7MB). Free memory was 53.2MB in the beginning and 106.5MB in the end (delta: -53.2MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 16701.59ms. Allocated memory was 140.5MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 105.8MB in the beginning and 848.6MB in the end (delta: -742.8MB). Peak memory consumption was 656.9MB. Max. memory is 16.1GB. * Witness Printer took 33.80ms. Allocated memory is still 1.5GB. Free memory was 848.6MB in the beginning and 845.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.9s, 228 PlacesBefore, 86 PlacesAfterwards, 231 TransitionsBefore, 85 TransitionsAfterwards, 17640 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 99 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 4 ChoiceCompositions, 170 TotalNumberOfCompositions, 67438 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 31415, positive: 30404, positive conditional: 0, positive unconditional: 30404, negative: 1011, negative conditional: 0, negative unconditional: 1011, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12900, positive: 12681, positive conditional: 0, positive unconditional: 12681, negative: 219, negative conditional: 0, negative unconditional: 219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12900, positive: 12545, positive conditional: 0, positive unconditional: 12545, negative: 355, negative conditional: 0, negative unconditional: 355, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 355, positive: 136, positive conditional: 0, positive unconditional: 136, negative: 219, negative conditional: 0, negative unconditional: 219, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 529, positive: 220, positive conditional: 0, positive unconditional: 220, negative: 309, negative conditional: 0, negative unconditional: 309, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 31415, positive: 17723, positive conditional: 0, positive unconditional: 17723, negative: 792, negative conditional: 0, negative unconditional: 792, unknown: 12900, unknown conditional: 0, unknown unconditional: 12900] , Statistics on independence cache: Total cache size (in pairs): 2240, Positive cache size: 2114, Positive conditional cache size: 0, Positive unconditional cache size: 2114, Negative cache size: 126, Negative conditional cache size: 0, Negative unconditional cache size: 126 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1024]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1025]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 962]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 954]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 969]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 946]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 946]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1009]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 976]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 950]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 950]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 954]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 984]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 374 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 16.5s, OverallIterations: 16, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1936 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1936 mSDsluCounter, 1873 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2501 mSDsCounter, 248 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3894 IncrementalHoareTripleChecker+Invalid, 4142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 248 mSolverCounterUnsat, 862 mSDtfsCounter, 3894 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 354 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14443occurred in iteration=7, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 16 MinimizatonAttempts, 21105 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 696 NumberOfCodeBlocks, 616 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 764 ConstructedInterpolants, 0 QuantifiedInterpolants, 2422 SizeOfPredicates, 2 NumberOfNonLiveVariables, 890 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 21 InterpolantComputations, 14 PerfectInterpolantSequences, 248/387 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 20:14:26,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE