./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 TOGETHER --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 TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 17:58:04,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:58:04,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:58:04,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:58:04,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:58:04,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:58:04,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:58:04,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:58:04,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:58:04,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:58:04,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:58:04,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:58:04,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:58:04,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:58:04,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:58:04,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:58:04,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:58:04,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:58:04,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:58:04,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:58:04,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:58:04,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:58:04,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:58:04,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:58:04,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:58:04,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:58:04,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:58:04,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:58:04,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:58:04,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:58:04,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:58:04,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:58:04,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:58:04,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:58:04,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:58:04,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:58:04,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:58:04,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:58:04,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:58:04,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:58:04,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:58:04,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:58:04,346 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:58:04,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:58:04,347 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:58:04,347 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:58:04,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:58:04,348 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:58:04,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:58:04,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:58:04,349 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:58:04,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:58:04,350 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:58:04,351 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:58:04,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:58:04,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:58:04,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:58:04,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:58:04,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:58:04,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:58:04,352 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:58:04,352 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:58:04,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:58:04,352 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:58:04,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:58:04,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:58:04,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:58:04,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:58:04,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:58:04,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:58:04,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:58:04,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:58:04,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:58:04,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:58:04,355 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:58:04,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:58:04,355 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:58:04,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:58:04,355 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:58:04,356 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:58:04,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:58:04,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:58:04,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:58:04,672 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:58:04,672 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:58:04,673 INFO L432 ainManager$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 17:58:05,743 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:58:06,001 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:58:06,001 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_21-arrayloop2_nr.i [2023-08-29 17:58:06,028 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a472b4875/fa229028deba4c01a259596ca5d24095/FLAG93ac49833 [2023-08-29 17:58:06,040 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a472b4875/fa229028deba4c01a259596ca5d24095 [2023-08-29 17:58:06,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:58:06,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:58:06,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:58:06,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:58:06,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:58:06,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:58:06" (1/1) ... [2023-08-29 17:58:06,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aef9a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:58:06, skipping insertion in model container [2023-08-29 17:58:06,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:58:06" (1/1) ... [2023-08-29 17:58:06,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:58:06,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:58:06,462 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:58:06,464 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:58:06,491 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:58:06,495 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:58:06,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:58:06,557 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:58:06,599 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:58:06,600 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:58:06,602 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:58:06,603 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:58:06,624 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:58:06,685 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:58:06,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:58:06 WrapperNode [2023-08-29 17:58:06,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:58:06,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:58:06,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:58:06,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:58:06,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:58:06" (1/1) ... [2023-08-29 17:58:06,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:58:06" (1/1) ... [2023-08-29 17:58:06,774 INFO L138 Inliner]: procedures = 271, calls = 32, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 208 [2023-08-29 17:58:06,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:58:06,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:58:06,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:58:06,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:58:06,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:58:06" (1/1) ... [2023-08-29 17:58:06,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:58:06" (1/1) ... [2023-08-29 17:58:06,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:58:06" (1/1) ... [2023-08-29 17:58:06,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:58:06" (1/1) ... [2023-08-29 17:58:06,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:58:06" (1/1) ... [2023-08-29 17:58:06,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:58:06" (1/1) ... [2023-08-29 17:58:06,851 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:58:06" (1/1) ... [2023-08-29 17:58:06,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:58:06" (1/1) ... [2023-08-29 17:58:06,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:58:06,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:58:06,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:58:06,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:58:06,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:58:06" (1/1) ... [2023-08-29 17:58:06,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:58:06,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:58:06,896 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 17:58:06,919 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 17:58:06,929 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-08-29 17:58:06,929 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-08-29 17:58:06,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:58:06,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 17:58:06,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:58:06,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:58:06,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:58:06,930 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:58:06,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 17:58:06,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:58:06,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 17:58:06,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:58:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:58:06,932 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 17:58:07,140 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:58:07,141 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:58:07,539 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:58:07,547 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:58:07,547 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-29 17:58:07,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:58:07 BoogieIcfgContainer [2023-08-29 17:58:07,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:58:07,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:58:07,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:58:07,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:58:07,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:58:06" (1/3) ... [2023-08-29 17:58:07,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a932ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:58:07, skipping insertion in model container [2023-08-29 17:58:07,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:58:06" (2/3) ... [2023-08-29 17:58:07,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a932ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:58:07, skipping insertion in model container [2023-08-29 17:58:07,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:58:07" (3/3) ... [2023-08-29 17:58:07,558 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_21-arrayloop2_nr.i [2023-08-29 17:58:07,565 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:58:07,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:58:07,576 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-29 17:58:07,576 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:58:07,683 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:58:07,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 284 places, 291 transitions, 592 flow [2023-08-29 17:58:07,793 INFO L130 PetriNetUnfolder]: 14/289 cut-off events. [2023-08-29 17:58:07,793 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:58:07,799 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 17:58:07,799 INFO L82 GeneralOperation]: Start removeDead. Operand has 284 places, 291 transitions, 592 flow [2023-08-29 17:58:07,805 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 282 places, 289 transitions, 584 flow [2023-08-29 17:58:07,808 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:58:07,816 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 282 places, 289 transitions, 584 flow [2023-08-29 17:58:07,819 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 282 places, 289 transitions, 584 flow [2023-08-29 17:58:07,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 282 places, 289 transitions, 584 flow [2023-08-29 17:58:07,895 INFO L130 PetriNetUnfolder]: 14/289 cut-off events. [2023-08-29 17:58:07,895 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:58:07,900 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 17:58:07,906 INFO L119 LiptonReduction]: Number of co-enabled transitions 12194 [2023-08-29 17:58:47,415 WARN L222 SmtUtils]: Spent 10.54s 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 17:59:01,869 WARN L222 SmtUtils]: Spent 9.95s 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 18:00:23,001 WARN L222 SmtUtils]: Spent 1.08m 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 18:01:29,068 WARN L222 SmtUtils]: Spent 1.10m 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 18:02:18,895 WARN L222 SmtUtils]: Spent 49.82s 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 18:03:26,013 WARN L222 SmtUtils]: Spent 1.12m 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 18:06:13,600 WARN L222 SmtUtils]: Spent 2.79m 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 18:07:50,904 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 18:10:33,420 WARN L222 SmtUtils]: Spent 2.71m 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 18:12:41,325 WARN L222 SmtUtils]: Spent 2.13m 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 18:12:41,329 INFO L134 LiptonReduction]: Checked pairs total: 46779 [2023-08-29 18:12:41,329 INFO L136 LiptonReduction]: Total number of compositions: 252 [2023-08-29 18:12:41,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:12:41,346 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;@1d5c0cd2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:12:41,346 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-08-29 18:12:41,348 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-08-29 18:12:41,348 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:12:41,348 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:12:41,349 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-29 18:12:41,349 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 18:12:41,353 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:12:41,354 INFO L85 PathProgramCache]: Analyzing trace with hash 28438, now seen corresponding path program 1 times [2023-08-29 18:12:41,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:12:41,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299253401] [2023-08-29 18:12:41,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:12:41,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:12:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:12:41,485 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 18:12:41,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:12:41,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299253401] [2023-08-29 18:12:41,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299253401] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:12:41,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:12:41,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 18:12:41,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038963209] [2023-08-29 18:12:41,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:12:41,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 18:12:41,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:12:41,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 18:12:41,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 18:12:41,524 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 543 [2023-08-29 18:12:41,529 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 18:12:41,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:12:41,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 543 [2023-08-29 18:12:41,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:12:42,452 INFO L130 PetriNetUnfolder]: 397/1274 cut-off events. [2023-08-29 18:12:42,452 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2023-08-29 18:12:42,454 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 18:12:42,460 INFO L137 encePairwiseOnDemand]: 533/543 looper letters, 32 selfloop transitions, 0 changer transitions 0/73 dead transitions. [2023-08-29 18:12:42,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 73 transitions, 216 flow [2023-08-29 18:12:42,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 18:12:42,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 18:12:42,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 604 transitions. [2023-08-29 18:12:42,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5561694290976059 [2023-08-29 18:12:42,481 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 604 transitions. [2023-08-29 18:12:42,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 604 transitions. [2023-08-29 18:12:42,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:12:42,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 604 transitions. [2023-08-29 18:12:42,492 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 18:12:42,498 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 18:12:42,499 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 18:12:42,500 INFO L175 Difference]: Start difference. First operand has 84 places, 83 transitions, 172 flow. Second operand 2 states and 604 transitions. [2023-08-29 18:12:42,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 73 transitions, 216 flow [2023-08-29 18:12:42,503 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 18:12:42,524 INFO L231 Difference]: Finished difference. Result has 73 places, 73 transitions, 150 flow [2023-08-29 18:12:42,526 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 18:12:42,529 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -11 predicate places. [2023-08-29 18:12:42,529 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 73 transitions, 150 flow [2023-08-29 18:12:42,530 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 18:12:42,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:12:42,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:12:42,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:12:42,531 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 18:12:42,531 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:12:42,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1370966166, now seen corresponding path program 1 times [2023-08-29 18:12:42,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:12:42,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687366394] [2023-08-29 18:12:42,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:12:42,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:12:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:12:42,630 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 18:12:42,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:12:42,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687366394] [2023-08-29 18:12:42,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687366394] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:12:42,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:12:42,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:12:42,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605558277] [2023-08-29 18:12:42,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:12:42,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:12:42,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:12:42,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:12:42,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:12:42,650 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 543 [2023-08-29 18:12:42,651 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 18:12:42,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:12:42,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 543 [2023-08-29 18:12:42,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:12:44,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 18:12:44,796 INFO L130 PetriNetUnfolder]: 398/1277 cut-off events. [2023-08-29 18:12:44,797 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:12:44,799 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 18:12:44,804 INFO L137 encePairwiseOnDemand]: 540/543 looper letters, 33 selfloop transitions, 2 changer transitions 0/76 dead transitions. [2023-08-29 18:12:44,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 76 transitions, 226 flow [2023-08-29 18:12:44,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:12:44,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:12:44,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 867 transitions. [2023-08-29 18:12:44,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5322283609576427 [2023-08-29 18:12:44,808 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 867 transitions. [2023-08-29 18:12:44,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 867 transitions. [2023-08-29 18:12:44,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:12:44,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 867 transitions. [2023-08-29 18:12:44,810 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 18:12:44,813 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 18:12:44,814 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 18:12:44,815 INFO L175 Difference]: Start difference. First operand has 73 places, 73 transitions, 150 flow. Second operand 3 states and 867 transitions. [2023-08-29 18:12:44,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 76 transitions, 226 flow [2023-08-29 18:12:44,816 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 18:12:44,818 INFO L231 Difference]: Finished difference. Result has 76 places, 74 transitions, 162 flow [2023-08-29 18:12:44,818 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 18:12:44,819 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -8 predicate places. [2023-08-29 18:12:44,819 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 74 transitions, 162 flow [2023-08-29 18:12:44,820 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 18:12:44,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:12:44,824 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:12:44,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:12:44,825 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 18:12:44,828 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:12:44,828 INFO L85 PathProgramCache]: Analyzing trace with hash 868645012, now seen corresponding path program 1 times [2023-08-29 18:12:44,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:12:44,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436968286] [2023-08-29 18:12:44,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:12:44,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:12:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:12:44,963 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 18:12:44,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:12:44,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436968286] [2023-08-29 18:12:44,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436968286] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:12:44,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:12:44,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:12:44,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209369270] [2023-08-29 18:12:44,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:12:44,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:12:44,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:12:44,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:12:44,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:12:44,976 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 543 [2023-08-29 18:12:44,977 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 18:12:44,977 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:12:44,977 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 543 [2023-08-29 18:12:44,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:12:46,598 INFO L130 PetriNetUnfolder]: 398/1279 cut-off events. [2023-08-29 18:12:46,598 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:12:46,600 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 18:12:46,617 INFO L137 encePairwiseOnDemand]: 540/543 looper letters, 32 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2023-08-29 18:12:46,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 75 transitions, 232 flow [2023-08-29 18:12:46,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:12:46,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:12:46,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 865 transitions. [2023-08-29 18:12:46,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.531000613873542 [2023-08-29 18:12:46,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 865 transitions. [2023-08-29 18:12:46,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 865 transitions. [2023-08-29 18:12:46,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:12:46,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 865 transitions. [2023-08-29 18:12:46,623 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 18:12:46,626 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 18:12:46,627 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 18:12:46,628 INFO L175 Difference]: Start difference. First operand has 76 places, 74 transitions, 162 flow. Second operand 3 states and 865 transitions. [2023-08-29 18:12:46,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 75 transitions, 232 flow [2023-08-29 18:12:46,629 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 18:12:46,630 INFO L231 Difference]: Finished difference. Result has 78 places, 75 transitions, 174 flow [2023-08-29 18:12:46,630 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 18:12:46,632 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -6 predicate places. [2023-08-29 18:12:46,632 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 75 transitions, 174 flow [2023-08-29 18:12:46,633 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 18:12:46,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:12:46,633 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:12:46,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:12:46,633 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 18:12:46,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:12:46,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1893765046, now seen corresponding path program 1 times [2023-08-29 18:12:46,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:12:46,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819527510] [2023-08-29 18:12:46,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:12:46,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:12:46,713 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-29 18:12:46,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [185549544] [2023-08-29 18:12:46,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:12:46,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:12:46,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:12:46,717 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 18:12:46,721 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 18:12:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:12:47,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 18:12:47,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 18:12:47,084 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 18:12:47,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 18:12:47,113 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 18:12:47,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:12:47,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819527510] [2023-08-29 18:12:47,116 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-29 18:12:47,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185549544] [2023-08-29 18:12:47,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185549544] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 18:12:47,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-29 18:12:47,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-08-29 18:12:47,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577307499] [2023-08-29 18:12:47,117 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-29 18:12:47,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:12:47,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:12:47,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:12:47,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:12:47,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 543 [2023-08-29 18:12:47,144 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 18:12:47,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:12:47,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 543 [2023-08-29 18:12:47,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15