./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_21-arrayloop2_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_21-arrayloop2_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:26:06,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:26:06,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:26:06,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:26:06,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:26:06,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:26:06,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:26:06,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:26:06,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:26:06,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:26:06,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:26:06,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:26:06,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:26:06,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:26:06,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:26:06,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:26:06,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:26:06,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:26:06,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:26:06,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:26:06,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:26:06,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:26:06,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:26:06,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:26:06,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:26:06,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:26:06,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:26:06,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:26:06,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:26:06,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:26:06,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:26:06,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:26:06,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:26:06,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:26:06,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:26:06,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:26:06,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:26:06,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:26:06,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:26:06,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:26:06,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:26:06,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:26:06,953 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:26:06,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:26:06,954 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:26:06,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:26:06,956 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:26:06,956 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:26:06,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:26:06,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:26:06,957 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:26:06,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:26:06,957 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:26:06,957 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:26:06,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:26:06,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:26:06,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:26:06,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:26:06,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:26:06,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:26:06,959 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:26:06,959 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:26:06,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:26:06,959 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:26:06,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:26:06,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:26:06,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:26:06,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:26:06,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:26:06,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:26:06,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:26:06,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:26:06,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:26:06,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:26:06,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:26:06,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:26:06,962 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:26:06,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:26:06,962 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:26:06,963 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:26:07,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:26:07,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:26:07,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:26:07,278 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:26:07,278 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:26:07,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_21-arrayloop2_nr.i [2023-08-29 02:26:08,366 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:26:08,584 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:26:08,585 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_21-arrayloop2_nr.i [2023-08-29 02:26:08,601 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a16b5964/a92f641d270c47dc89c5db1336bc05fd/FLAG21c8a4d7e [2023-08-29 02:26:08,616 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a16b5964/a92f641d270c47dc89c5db1336bc05fd [2023-08-29 02:26:08,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:26:08,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:26:08,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:26:08,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:26:08,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:26:08,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:26:08" (1/1) ... [2023-08-29 02:26:08,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5327a9c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:26:08, skipping insertion in model container [2023-08-29 02:26:08,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:26:08" (1/1) ... [2023-08-29 02:26:08,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:26:08,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:26:09,136 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 02:26:09,139 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 02:26:09,140 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 02:26:09,142 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 02:26:09,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:26:09,195 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:26:09,232 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 02:26:09,233 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 02:26:09,234 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 02:26:09,234 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 02:26:09,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:26:09,298 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:26:09,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:26:09 WrapperNode [2023-08-29 02:26:09,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:26:09,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:26:09,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:26:09,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:26:09,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:26:09" (1/1) ... [2023-08-29 02:26:09,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:26:09" (1/1) ... [2023-08-29 02:26:09,383 INFO L138 Inliner]: procedures = 271, calls = 32, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 208 [2023-08-29 02:26:09,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:26:09,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:26:09,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:26:09,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:26:09,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:26:09" (1/1) ... [2023-08-29 02:26:09,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:26:09" (1/1) ... [2023-08-29 02:26:09,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:26:09" (1/1) ... [2023-08-29 02:26:09,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:26:09" (1/1) ... [2023-08-29 02:26:09,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:26:09" (1/1) ... [2023-08-29 02:26:09,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:26:09" (1/1) ... [2023-08-29 02:26:09,455 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:26:09" (1/1) ... [2023-08-29 02:26:09,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:26:09" (1/1) ... [2023-08-29 02:26:09,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:26:09,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:26:09,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:26:09,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:26:09,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:26:09" (1/1) ... [2023-08-29 02:26:09,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:26:09,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:26:09,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 02:26:09,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 02:26:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-08-29 02:26:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-08-29 02:26:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:26:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 02:26:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:26:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:26:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:26:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:26:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 02:26:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:26:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 02:26:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:26:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:26:09,551 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 02:26:09,724 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:26:09,726 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:26:10,081 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:26:10,088 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:26:10,089 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-29 02:26:10,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:26:10 BoogieIcfgContainer [2023-08-29 02:26:10,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:26:10,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:26:10,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:26:10,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:26:10,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:26:08" (1/3) ... [2023-08-29 02:26:10,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b7c9b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:26:10, skipping insertion in model container [2023-08-29 02:26:10,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:26:09" (2/3) ... [2023-08-29 02:26:10,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b7c9b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:26:10, skipping insertion in model container [2023-08-29 02:26:10,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:26:10" (3/3) ... [2023-08-29 02:26:10,098 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_21-arrayloop2_nr.i [2023-08-29 02:26:10,111 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:26:10,119 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:26:10,119 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-29 02:26:10,119 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:26:10,220 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:26:10,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 284 places, 291 transitions, 592 flow [2023-08-29 02:26:10,396 INFO L130 PetriNetUnfolder]: 14/289 cut-off events. [2023-08-29 02:26:10,397 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:26:10,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 289 events. 14/289 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 574 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 214. Up to 2 conditions per place. [2023-08-29 02:26:10,405 INFO L82 GeneralOperation]: Start removeDead. Operand has 284 places, 291 transitions, 592 flow [2023-08-29 02:26:10,419 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 282 places, 289 transitions, 584 flow [2023-08-29 02:26:10,423 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:26:10,436 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 282 places, 289 transitions, 584 flow [2023-08-29 02:26:10,439 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 282 places, 289 transitions, 584 flow [2023-08-29 02:26:10,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 282 places, 289 transitions, 584 flow [2023-08-29 02:26:10,490 INFO L130 PetriNetUnfolder]: 14/289 cut-off events. [2023-08-29 02:26:10,491 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:26:10,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 289 events. 14/289 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 573 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 214. Up to 2 conditions per place. [2023-08-29 02:26:10,502 INFO L119 LiptonReduction]: Number of co-enabled transitions 12194 [2023-08-29 02:26:50,875 WARN L222 SmtUtils]: Spent 10.89s on a formula simplification. DAG size of input: 147 DAG size of output: 138 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:27:05,770 WARN L222 SmtUtils]: Spent 10.32s on a formula simplification. DAG size of input: 147 DAG size of output: 138 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:28:27,873 WARN L222 SmtUtils]: Spent 1.09m on a formula simplification. DAG size of input: 230 DAG size of output: 224 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:29:29,779 WARN L222 SmtUtils]: Spent 1.03m on a formula simplification that was a NOOP. DAG size: 216 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:30:16,614 WARN L222 SmtUtils]: Spent 46.83s on a formula simplification. DAG size of input: 230 DAG size of output: 224 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:31:16,492 WARN L222 SmtUtils]: Spent 59.87s on a formula simplification that was a NOOP. DAG size: 216 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:33:55,020 WARN L222 SmtUtils]: Spent 2.64m on a formula simplification that was a NOOP. DAG size: 268 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:35:32,174 WARN L222 SmtUtils]: Spent 1.62m on a formula simplification that was a NOOP. DAG size: 252 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:38:09,409 WARN L222 SmtUtils]: Spent 2.62m on a formula simplification that was a NOOP. DAG size: 268 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:40:12,245 WARN L222 SmtUtils]: Spent 2.05m on a formula simplification that was a NOOP. DAG size: 252 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:40:12,249 INFO L134 LiptonReduction]: Checked pairs total: 46779 [2023-08-29 02:40:12,250 INFO L136 LiptonReduction]: Total number of compositions: 252 [2023-08-29 02:40:12,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:40:12,265 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ae52eb5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:40:12,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-08-29 02:40:12,267 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-08-29 02:40:12,267 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:40:12,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:40:12,268 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-29 02:40:12,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:40:12,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:40:12,275 INFO L85 PathProgramCache]: Analyzing trace with hash 28438, now seen corresponding path program 1 times [2023-08-29 02:40:12,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:40:12,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083589025] [2023-08-29 02:40:12,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:40:12,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:40:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:40:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:40:12,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:40:12,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083589025] [2023-08-29 02:40:12,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083589025] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:40:12,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:40:12,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 02:40:12,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982005550] [2023-08-29 02:40:12,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:40:12,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 02:40:12,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:40:12,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 02:40:12,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 02:40:12,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 543 [2023-08-29 02:40:12,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 83 transitions, 172 flow. Second operand has 2 states, 2 states have (on average 282.0) internal successors, (564), 2 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:12,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:40:12,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 543 [2023-08-29 02:40:12,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:40:14,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 02:40:14,369 INFO L130 PetriNetUnfolder]: 397/1274 cut-off events. [2023-08-29 02:40:14,369 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2023-08-29 02:40:14,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1940 conditions, 1274 events. 397/1274 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 7920 event pairs, 307 based on Foata normal form. 0/1150 useless extension candidates. Maximal degree in co-relation 1922. Up to 641 conditions per place. [2023-08-29 02:40:14,376 INFO L137 encePairwiseOnDemand]: 533/543 looper letters, 32 selfloop transitions, 0 changer transitions 0/73 dead transitions. [2023-08-29 02:40:14,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 73 transitions, 216 flow [2023-08-29 02:40:14,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 02:40:14,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 02:40:14,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 604 transitions. [2023-08-29 02:40:14,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5561694290976059 [2023-08-29 02:40:14,398 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 604 transitions. [2023-08-29 02:40:14,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 604 transitions. [2023-08-29 02:40:14,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:40:14,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 604 transitions. [2023-08-29 02:40:14,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 302.0) internal successors, (604), 2 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:14,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 543.0) internal successors, (1629), 3 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:14,411 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 543.0) internal successors, (1629), 3 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:14,412 INFO L175 Difference]: Start difference. First operand has 84 places, 83 transitions, 172 flow. Second operand 2 states and 604 transitions. [2023-08-29 02:40:14,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 73 transitions, 216 flow [2023-08-29 02:40:14,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 73 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:40:14,417 INFO L231 Difference]: Finished difference. Result has 73 places, 73 transitions, 150 flow [2023-08-29 02:40:14,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=543, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=150, PETRI_PLACES=73, PETRI_TRANSITIONS=73} [2023-08-29 02:40:14,421 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -11 predicate places. [2023-08-29 02:40:14,422 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 73 transitions, 150 flow [2023-08-29 02:40:14,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 282.0) internal successors, (564), 2 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:14,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:40:14,422 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:40:14,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:40:14,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:40:14,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:40:14,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1370966166, now seen corresponding path program 1 times [2023-08-29 02:40:14,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:40:14,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203168032] [2023-08-29 02:40:14,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:40:14,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:40:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:40:14,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:40:14,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:40:14,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203168032] [2023-08-29 02:40:14,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203168032] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:40:14,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:40:14,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:40:14,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018929137] [2023-08-29 02:40:14,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:40:14,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:40:14,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:40:14,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:40:14,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:40:14,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 543 [2023-08-29 02:40:14,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 73 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:14,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:40:14,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 543 [2023-08-29 02:40:14,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:40:15,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 02:40:17,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 02:40:17,378 INFO L130 PetriNetUnfolder]: 398/1277 cut-off events. [2023-08-29 02:40:17,379 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:40:17,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1945 conditions, 1277 events. 398/1277 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 7931 event pairs, 307 based on Foata normal form. 0/1152 useless extension candidates. Maximal degree in co-relation 1942. Up to 641 conditions per place. [2023-08-29 02:40:17,384 INFO L137 encePairwiseOnDemand]: 540/543 looper letters, 33 selfloop transitions, 2 changer transitions 0/76 dead transitions. [2023-08-29 02:40:17,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 76 transitions, 226 flow [2023-08-29 02:40:17,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:40:17,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:40:17,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 867 transitions. [2023-08-29 02:40:17,388 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5322283609576427 [2023-08-29 02:40:17,388 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 867 transitions. [2023-08-29 02:40:17,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 867 transitions. [2023-08-29 02:40:17,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:40:17,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 867 transitions. [2023-08-29 02:40:17,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:17,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 543.0) internal successors, (2172), 4 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:17,395 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 543.0) internal successors, (2172), 4 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:17,395 INFO L175 Difference]: Start difference. First operand has 73 places, 73 transitions, 150 flow. Second operand 3 states and 867 transitions. [2023-08-29 02:40:17,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 76 transitions, 226 flow [2023-08-29 02:40:17,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 76 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:40:17,398 INFO L231 Difference]: Finished difference. Result has 76 places, 74 transitions, 162 flow [2023-08-29 02:40:17,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=543, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=76, PETRI_TRANSITIONS=74} [2023-08-29 02:40:17,400 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -8 predicate places. [2023-08-29 02:40:17,400 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 74 transitions, 162 flow [2023-08-29 02:40:17,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:17,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:40:17,402 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:40:17,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:40:17,403 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:40:17,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:40:17,406 INFO L85 PathProgramCache]: Analyzing trace with hash 868645012, now seen corresponding path program 1 times [2023-08-29 02:40:17,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:40:17,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755299841] [2023-08-29 02:40:17,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:40:17,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:40:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:40:17,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:40:17,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:40:17,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755299841] [2023-08-29 02:40:17,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755299841] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:40:17,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:40:17,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 02:40:17,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013947212] [2023-08-29 02:40:17,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:40:17,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:40:17,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:40:17,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:40:17,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:40:17,551 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 543 [2023-08-29 02:40:17,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 74 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:17,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:40:17,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 543 [2023-08-29 02:40:17,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:40:19,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 02:40:19,906 INFO L130 PetriNetUnfolder]: 398/1279 cut-off events. [2023-08-29 02:40:19,907 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:40:19,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1956 conditions, 1279 events. 398/1279 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 7916 event pairs, 307 based on Foata normal form. 2/1159 useless extension candidates. Maximal degree in co-relation 1951. Up to 644 conditions per place. [2023-08-29 02:40:19,913 INFO L137 encePairwiseOnDemand]: 540/543 looper letters, 32 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2023-08-29 02:40:19,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 75 transitions, 232 flow [2023-08-29 02:40:19,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:40:19,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:40:19,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 865 transitions. [2023-08-29 02:40:19,916 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.531000613873542 [2023-08-29 02:40:19,916 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 865 transitions. [2023-08-29 02:40:19,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 865 transitions. [2023-08-29 02:40:19,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:40:19,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 865 transitions. [2023-08-29 02:40:19,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 288.3333333333333) internal successors, (865), 3 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:19,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 543.0) internal successors, (2172), 4 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:19,923 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 543.0) internal successors, (2172), 4 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:19,923 INFO L175 Difference]: Start difference. First operand has 76 places, 74 transitions, 162 flow. Second operand 3 states and 865 transitions. [2023-08-29 02:40:19,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 75 transitions, 232 flow [2023-08-29 02:40:19,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 75 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:40:19,925 INFO L231 Difference]: Finished difference. Result has 78 places, 75 transitions, 174 flow [2023-08-29 02:40:19,926 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=543, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=78, PETRI_TRANSITIONS=75} [2023-08-29 02:40:19,927 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -6 predicate places. [2023-08-29 02:40:19,927 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 75 transitions, 174 flow [2023-08-29 02:40:19,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:19,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:40:19,928 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:40:19,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:40:19,929 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:40:19,929 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:40:19,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1893765046, now seen corresponding path program 1 times [2023-08-29 02:40:19,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:40:19,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869863778] [2023-08-29 02:40:19,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:40:19,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:40:20,013 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-29 02:40:20,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1428122786] [2023-08-29 02:40:20,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:40:20,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:40:20,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:40:20,021 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:40:20,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 02:40:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:40:20,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 02:40:20,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:40:20,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:40:20,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:40:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:40:20,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:40:20,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869863778] [2023-08-29 02:40:20,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-29 02:40:20,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428122786] [2023-08-29 02:40:20,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428122786] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:40:20,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-29 02:40:20,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-08-29 02:40:20,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097283056] [2023-08-29 02:40:20,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-29 02:40:20,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:40:20,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:40:20,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:40:20,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:40:20,440 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 543 [2023-08-29 02:40:20,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 75 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:20,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:40:20,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 543 [2023-08-29 02:40:20,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:40:21,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 02:40:23,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 02:40:25,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 02:40:25,322 INFO L130 PetriNetUnfolder]: 398/1285 cut-off events. [2023-08-29 02:40:25,322 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 02:40:25,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1984 conditions, 1285 events. 398/1285 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 7946 event pairs, 307 based on Foata normal form. 6/1169 useless extension candidates. Maximal degree in co-relation 1978. Up to 644 conditions per place. [2023-08-29 02:40:25,329 INFO L137 encePairwiseOnDemand]: 540/543 looper letters, 32 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2023-08-29 02:40:25,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 78 transitions, 260 flow [2023-08-29 02:40:25,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:40:25,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:40:25,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1695 transitions. [2023-08-29 02:40:25,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5202578268876611 [2023-08-29 02:40:25,334 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1695 transitions. [2023-08-29 02:40:25,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1695 transitions. [2023-08-29 02:40:25,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:40:25,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1695 transitions. [2023-08-29 02:40:25,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 282.5) internal successors, (1695), 6 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:25,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 543.0) internal successors, (3801), 7 states have internal predecessors, (3801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:25,345 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 543.0) internal successors, (3801), 7 states have internal predecessors, (3801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:25,345 INFO L175 Difference]: Start difference. First operand has 78 places, 75 transitions, 174 flow. Second operand 6 states and 1695 transitions. [2023-08-29 02:40:25,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 78 transitions, 260 flow [2023-08-29 02:40:25,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 78 transitions, 256 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 02:40:25,349 INFO L231 Difference]: Finished difference. Result has 85 places, 78 transitions, 212 flow [2023-08-29 02:40:25,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=543, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=212, PETRI_PLACES=85, PETRI_TRANSITIONS=78} [2023-08-29 02:40:25,351 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 1 predicate places. [2023-08-29 02:40:25,351 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 78 transitions, 212 flow [2023-08-29 02:40:25,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:25,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:40:25,352 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:40:25,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 02:40:25,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:40:25,560 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:40:25,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:40:25,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1255919340, now seen corresponding path program 2 times [2023-08-29 02:40:25,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:40:25,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30188224] [2023-08-29 02:40:25,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:40:25,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:40:25,769 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-29 02:40:25,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [574652854] [2023-08-29 02:40:25,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 02:40:25,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:40:25,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:40:25,772 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:40:25,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 02:40:26,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 02:40:26,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:40:26,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-29 02:40:26,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:40:26,372 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2023-08-29 02:40:26,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-08-29 02:40:26,423 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 02:40:26,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-08-29 02:40:26,459 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 02:40:26,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-08-29 02:40:26,485 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-29 02:40:26,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 02:40:26,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:40:26,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30188224] [2023-08-29 02:40:26,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-29 02:40:26,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574652854] [2023-08-29 02:40:26,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574652854] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:40:26,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:40:26,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:40:26,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921212638] [2023-08-29 02:40:26,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:40:26,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:40:26,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:40:26,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:40:26,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:40:27,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 543 [2023-08-29 02:40:27,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 78 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 230.33333333333334) internal successors, (1382), 6 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:27,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:40:27,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 543 [2023-08-29 02:40:27,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:40:28,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 02:40:29,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 02:40:31,755 INFO L130 PetriNetUnfolder]: 1281/2926 cut-off events. [2023-08-29 02:40:31,755 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2023-08-29 02:40:31,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5105 conditions, 2926 events. 1281/2926 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 18104 event pairs, 594 based on Foata normal form. 0/2650 useless extension candidates. Maximal degree in co-relation 5096. Up to 1515 conditions per place. [2023-08-29 02:40:31,777 INFO L137 encePairwiseOnDemand]: 531/543 looper letters, 107 selfloop transitions, 23 changer transitions 0/159 dead transitions. [2023-08-29 02:40:31,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 159 transitions, 642 flow [2023-08-29 02:40:31,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:40:31,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:40:31,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1494 transitions. [2023-08-29 02:40:31,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4585635359116022 [2023-08-29 02:40:31,782 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1494 transitions. [2023-08-29 02:40:31,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1494 transitions. [2023-08-29 02:40:31,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:40:31,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1494 transitions. [2023-08-29 02:40:31,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 249.0) internal successors, (1494), 6 states have internal predecessors, (1494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:31,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 543.0) internal successors, (3801), 7 states have internal predecessors, (3801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:31,794 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 543.0) internal successors, (3801), 7 states have internal predecessors, (3801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:31,794 INFO L175 Difference]: Start difference. First operand has 85 places, 78 transitions, 212 flow. Second operand 6 states and 1494 transitions. [2023-08-29 02:40:31,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 159 transitions, 642 flow [2023-08-29 02:40:31,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 159 transitions, 628 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-29 02:40:31,801 INFO L231 Difference]: Finished difference. Result has 94 places, 100 transitions, 356 flow [2023-08-29 02:40:31,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=543, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=356, PETRI_PLACES=94, PETRI_TRANSITIONS=100} [2023-08-29 02:40:31,803 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 10 predicate places. [2023-08-29 02:40:31,804 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 100 transitions, 356 flow [2023-08-29 02:40:31,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 230.33333333333334) internal successors, (1382), 6 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:31,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:40:31,806 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:40:31,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 02:40:32,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:40:32,013 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:40:32,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:40:32,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1940896298, now seen corresponding path program 1 times [2023-08-29 02:40:32,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:40:32,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610913093] [2023-08-29 02:40:32,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:40:32,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:40:32,228 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-29 02:40:32,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097897812] [2023-08-29 02:40:32,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:40:32,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:40:32,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:40:32,230 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:40:32,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 02:40:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:40:33,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 3966 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 02:40:33,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:40:33,550 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:40:33,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:40:33,609 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:40:33,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:40:33,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610913093] [2023-08-29 02:40:33,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-29 02:40:33,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097897812] [2023-08-29 02:40:33,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097897812] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:40:33,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-29 02:40:33,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-08-29 02:40:33,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703119239] [2023-08-29 02:40:33,611 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-29 02:40:33,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:40:33,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:40:33,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:40:33,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:40:33,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 543 [2023-08-29 02:40:33,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 100 transitions, 356 flow. Second operand has 12 states, 12 states have (on average 277.6666666666667) internal successors, (3332), 12 states have internal predecessors, (3332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:33,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:40:33,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 543 [2023-08-29 02:40:33,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:40:35,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 02:40:39,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 02:40:42,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 02:40:43,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 02:40:44,911 INFO L130 PetriNetUnfolder]: 752/2261 cut-off events. [2023-08-29 02:40:44,912 INFO L131 PetriNetUnfolder]: For 361/389 co-relation queries the response was YES. [2023-08-29 02:40:44,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4090 conditions, 2261 events. 752/2261 cut-off events. For 361/389 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 15671 event pairs, 487 based on Foata normal form. 18/2131 useless extension candidates. Maximal degree in co-relation 4076. Up to 1114 conditions per place. [2023-08-29 02:40:44,925 INFO L137 encePairwiseOnDemand]: 540/543 looper letters, 38 selfloop transitions, 11 changer transitions 0/106 dead transitions. [2023-08-29 02:40:44,926 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 106 transitions, 490 flow [2023-08-29 02:40:44,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:40:44,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:40:44,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3360 transitions. [2023-08-29 02:40:44,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5156537753222836 [2023-08-29 02:40:44,934 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3360 transitions. [2023-08-29 02:40:44,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3360 transitions. [2023-08-29 02:40:44,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:40:44,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3360 transitions. [2023-08-29 02:40:44,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 280.0) internal successors, (3360), 12 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:44,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 543.0) internal successors, (7059), 13 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:44,952 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 543.0) internal successors, (7059), 13 states have internal predecessors, (7059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:44,952 INFO L175 Difference]: Start difference. First operand has 94 places, 100 transitions, 356 flow. Second operand 12 states and 3360 transitions. [2023-08-29 02:40:44,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 106 transitions, 490 flow [2023-08-29 02:40:44,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 106 transitions, 490 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:40:44,961 INFO L231 Difference]: Finished difference. Result has 111 places, 106 transitions, 452 flow [2023-08-29 02:40:44,961 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=543, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=452, PETRI_PLACES=111, PETRI_TRANSITIONS=106} [2023-08-29 02:40:44,963 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 27 predicate places. [2023-08-29 02:40:44,964 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 106 transitions, 452 flow [2023-08-29 02:40:44,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 277.6666666666667) internal successors, (3332), 12 states have internal predecessors, (3332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:40:44,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:40:44,965 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:40:44,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-29 02:40:45,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:40:45,181 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:40:45,182 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:40:45,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1564200298, now seen corresponding path program 2 times [2023-08-29 02:40:45,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:40:45,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004779013] [2023-08-29 02:40:45,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:40:45,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Killed by 15