./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_22-nocollapse.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_22-nocollapse.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 a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df --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 17:59:17,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:59:17,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:59:17,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:59:17,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:59:17,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:59:17,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:59:17,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:59:17,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:59:17,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:59:17,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:59:17,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:59:17,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:59:17,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:59:17,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:59:17,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:59:17,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:59:17,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:59:17,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:59:17,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:59:17,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:59:17,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:59:17,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:59:17,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:59:17,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:59:17,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:59:17,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:59:17,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:59:17,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:59:17,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:59:17,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:59:17,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:59:17,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:59:17,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:59:17,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:59:17,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:59:17,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:59:17,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:59:17,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:59:17,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:59:17,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:59:17,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:59:17,298 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:59:17,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:59:17,299 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:59:17,299 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:59:17,300 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:59:17,300 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:59:17,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:59:17,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:59:17,301 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:59:17,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:59:17,301 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:59:17,302 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:59:17,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:59:17,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:59:17,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:59:17,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:59:17,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:59:17,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:59:17,302 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:59:17,303 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:59:17,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:59:17,303 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:59:17,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:59:17,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:59:17,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:59:17,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:59:17,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:59:17,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:59:17,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:59:17,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:59:17,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:59:17,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:59:17,304 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:59:17,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:59:17,305 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:59:17,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:59:17,305 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:59:17,305 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:59:17,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:59:17,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:59:17,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:59:17,560 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:59:17,560 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:59:17,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_22-nocollapse.i [2023-08-29 17:59:18,531 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:59:18,770 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:59:18,773 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_22-nocollapse.i [2023-08-29 17:59:18,796 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/367a94825/b6850d4c774342db9d8691e81cd01dae/FLAG48701451e [2023-08-29 17:59:18,811 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/367a94825/b6850d4c774342db9d8691e81cd01dae [2023-08-29 17:59:18,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:59:18,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:59:18,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:59:18,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:59:18,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:59:18,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:59:18" (1/1) ... [2023-08-29 17:59:18,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c3d384a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:59:18, skipping insertion in model container [2023-08-29 17:59:18,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:59:18" (1/1) ... [2023-08-29 17:59:18,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:59:18,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:59:19,171 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:59:19,172 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:59:19,173 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:59:19,174 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:59:19,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:59:19,229 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:59:19,251 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:59:19,252 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:59:19,252 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:59:19,253 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-29 17:59:19,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:59:19,303 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:59:19,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:59:19 WrapperNode [2023-08-29 17:59:19,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:59:19,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:59:19,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:59:19,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:59:19,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:59:19" (1/1) ... [2023-08-29 17:59:19,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:59:19" (1/1) ... [2023-08-29 17:59:19,355 INFO L138 Inliner]: procedures = 272, calls = 35, calls flagged for inlining = 9, calls inlined = 8, statements flattened = 219 [2023-08-29 17:59:19,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:59:19,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:59:19,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:59:19,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:59:19,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:59:19" (1/1) ... [2023-08-29 17:59:19,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:59:19" (1/1) ... [2023-08-29 17:59:19,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:59:19" (1/1) ... [2023-08-29 17:59:19,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:59:19" (1/1) ... [2023-08-29 17:59:19,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:59:19" (1/1) ... [2023-08-29 17:59:19,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:59:19" (1/1) ... [2023-08-29 17:59:19,386 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:59:19" (1/1) ... [2023-08-29 17:59:19,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:59:19" (1/1) ... [2023-08-29 17:59:19,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:59:19,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:59:19,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:59:19,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:59:19,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:59:19" (1/1) ... [2023-08-29 17:59:19,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:59:19,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:59:19,440 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 17:59:19,446 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 17:59:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-08-29 17:59:19,465 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-08-29 17:59:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:59:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 17:59:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:59:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:59:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:59:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:59:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 17:59:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:59:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 17:59:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:59:19,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:59:19,467 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 17:59:19,650 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:59:19,652 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:59:20,025 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:59:20,032 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:59:20,034 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-29 17:59:20,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:59:20 BoogieIcfgContainer [2023-08-29 17:59:20,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:59:20,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:59:20,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:59:20,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:59:20,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:59:18" (1/3) ... [2023-08-29 17:59:20,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f4b125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:59:20, skipping insertion in model container [2023-08-29 17:59:20,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:59:19" (2/3) ... [2023-08-29 17:59:20,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f4b125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:59:20, skipping insertion in model container [2023-08-29 17:59:20,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:59:20" (3/3) ... [2023-08-29 17:59:20,043 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_22-nocollapse.i [2023-08-29 17:59:20,048 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:59:20,055 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:59:20,055 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-29 17:59:20,055 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:59:20,152 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:59:20,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 297 places, 305 transitions, 620 flow [2023-08-29 17:59:20,254 INFO L130 PetriNetUnfolder]: 15/303 cut-off events. [2023-08-29 17:59:20,255 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:59:20,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 303 events. 15/303 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 579 event pairs, 0 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 228. Up to 2 conditions per place. [2023-08-29 17:59:20,260 INFO L82 GeneralOperation]: Start removeDead. Operand has 297 places, 305 transitions, 620 flow [2023-08-29 17:59:20,264 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 295 places, 303 transitions, 612 flow [2023-08-29 17:59:20,267 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:59:20,273 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 295 places, 303 transitions, 612 flow [2023-08-29 17:59:20,274 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 295 places, 303 transitions, 612 flow [2023-08-29 17:59:20,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 303 transitions, 612 flow [2023-08-29 17:59:20,305 INFO L130 PetriNetUnfolder]: 15/303 cut-off events. [2023-08-29 17:59:20,306 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:59:20,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 303 events. 15/303 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 580 event pairs, 0 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 228. Up to 2 conditions per place. [2023-08-29 17:59:20,311 INFO L119 LiptonReduction]: Number of co-enabled transitions 12194 [2023-08-29 17:59:56,714 WARN L222 SmtUtils]: Spent 11.26s on a formula simplification that was a NOOP. DAG size: 150 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:00:05,294 WARN L222 SmtUtils]: Spent 8.58s on a formula simplification that was a NOOP. DAG size: 144 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:00:14,862 WARN L222 SmtUtils]: Spent 9.57s on a formula simplification that was a NOOP. DAG size: 150 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:00:22,972 WARN L222 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 144 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:02:03,019 WARN L222 SmtUtils]: Spent 1.57m on a formula simplification. DAG size of input: 226 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:02:26,846 WARN L222 SmtUtils]: Spent 23.82s on a formula simplification that was a NOOP. DAG size: 206 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:04:22,199 WARN L222 SmtUtils]: Spent 1.92m on a formula simplification. DAG size of input: 226 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:05:13,681 WARN L222 SmtUtils]: Spent 51.48s on a formula simplification that was a NOOP. DAG size: 206 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:07:28,969 WARN L222 SmtUtils]: Spent 2.25m on a formula simplification that was a NOOP. DAG size: 266 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:09:25,400 WARN L222 SmtUtils]: Spent 1.94m 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 18:11:58,856 WARN L222 SmtUtils]: Spent 2.56m on a formula simplification that was a NOOP. DAG size: 266 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 18:13:59,489 WARN L222 SmtUtils]: Spent 2.01m 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 18:13:59,497 INFO L134 LiptonReduction]: Checked pairs total: 46942 [2023-08-29 18:13:59,497 INFO L136 LiptonReduction]: Total number of compositions: 275 [2023-08-29 18:13:59,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:13:59,511 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;@ee1596a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:13:59,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-08-29 18:13:59,513 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-08-29 18:13:59,513 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:13:59,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:13:59,514 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-29 18:13:59,514 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 18:13:59,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:13:59,519 INFO L85 PathProgramCache]: Analyzing trace with hash 30514, now seen corresponding path program 1 times [2023-08-29 18:13:59,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:13:59,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435586640] [2023-08-29 18:13:59,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:13:59,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:13:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:13:59,651 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 18:13:59,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:13:59,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435586640] [2023-08-29 18:13:59,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435586640] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:13:59,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:13:59,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 18:13:59,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235404708] [2023-08-29 18:13:59,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:13:59,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 18:13:59,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:13:59,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 18:13:59,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 18:13:59,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 580 [2023-08-29 18:13:59,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 83 transitions, 172 flow. Second operand has 2 states, 2 states have (on average 295.0) internal successors, (590), 2 states have internal predecessors, (590), 0 states have call successors, (0), 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 18:13:59,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:13:59,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 580 [2023-08-29 18:13:59,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:14:00,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-08-29 18:14:01,088 INFO L130 PetriNetUnfolder]: 434/1351 cut-off events. [2023-08-29 18:14:01,088 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-29 18:14:01,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2080 conditions, 1351 events. 434/1351 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 8215 event pairs, 340 based on Foata normal form. 0/1239 useless extension candidates. Maximal degree in co-relation 2062. Up to 702 conditions per place. [2023-08-29 18:14:01,114 INFO L137 encePairwiseOnDemand]: 570/580 looper letters, 33 selfloop transitions, 0 changer transitions 0/73 dead transitions. [2023-08-29 18:14:01,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 73 transitions, 218 flow [2023-08-29 18:14:01,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 18:14:01,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 18:14:01,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 631 transitions. [2023-08-29 18:14:01,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5439655172413793 [2023-08-29 18:14:01,125 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 631 transitions. [2023-08-29 18:14:01,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 631 transitions. [2023-08-29 18:14:01,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:14:01,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 631 transitions. [2023-08-29 18:14:01,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 315.5) internal successors, (631), 2 states have internal predecessors, (631), 0 states have call successors, (0), 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 18:14:01,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 580.0) internal successors, (1740), 3 states have internal predecessors, (1740), 0 states have call successors, (0), 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 18:14:01,135 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 580.0) internal successors, (1740), 3 states have internal predecessors, (1740), 0 states have call successors, (0), 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 18:14:01,136 INFO L175 Difference]: Start difference. First operand has 84 places, 83 transitions, 172 flow. Second operand 2 states and 631 transitions. [2023-08-29 18:14:01,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 73 transitions, 218 flow [2023-08-29 18:14:01,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 73 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:14:01,139 INFO L231 Difference]: Finished difference. Result has 73 places, 73 transitions, 150 flow [2023-08-29 18:14:01,141 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=580, 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 18:14:01,142 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -11 predicate places. [2023-08-29 18:14:01,143 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 73 transitions, 150 flow [2023-08-29 18:14:01,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 295.0) internal successors, (590), 2 states have internal predecessors, (590), 0 states have call successors, (0), 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 18:14:01,143 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:14:01,143 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:14:01,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:14:01,144 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 18:14:01,144 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:14:01,144 INFO L85 PathProgramCache]: Analyzing trace with hash 606265191, now seen corresponding path program 1 times [2023-08-29 18:14:01,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:14:01,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612139101] [2023-08-29 18:14:01,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:14:01,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:14:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:14:01,291 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 18:14:01,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:14:01,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612139101] [2023-08-29 18:14:01,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612139101] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:14:01,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:14:01,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:14:01,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362170356] [2023-08-29 18:14:01,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:14:01,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:14:01,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:14:01,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:14:01,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:14:01,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 580 [2023-08-29 18:14:01,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 73 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 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 18:14:01,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:14:01,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 580 [2023-08-29 18:14:01,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:14:04,235 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 18:14:04,414 INFO L130 PetriNetUnfolder]: 435/1354 cut-off events. [2023-08-29 18:14:04,416 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:14:04,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2085 conditions, 1354 events. 435/1354 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 8269 event pairs, 340 based on Foata normal form. 0/1241 useless extension candidates. Maximal degree in co-relation 2082. Up to 702 conditions per place. [2023-08-29 18:14:04,421 INFO L137 encePairwiseOnDemand]: 577/580 looper letters, 34 selfloop transitions, 2 changer transitions 0/76 dead transitions. [2023-08-29 18:14:04,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 76 transitions, 228 flow [2023-08-29 18:14:04,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:14:04,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:14:04,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 907 transitions. [2023-08-29 18:14:04,425 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.521264367816092 [2023-08-29 18:14:04,426 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 907 transitions. [2023-08-29 18:14:04,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 907 transitions. [2023-08-29 18:14:04,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:14:04,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 907 transitions. [2023-08-29 18:14:04,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 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 18:14:04,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 580.0) internal successors, (2320), 4 states have internal predecessors, (2320), 0 states have call successors, (0), 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 18:14:04,432 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 580.0) internal successors, (2320), 4 states have internal predecessors, (2320), 0 states have call successors, (0), 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 18:14:04,432 INFO L175 Difference]: Start difference. First operand has 73 places, 73 transitions, 150 flow. Second operand 3 states and 907 transitions. [2023-08-29 18:14:04,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 76 transitions, 228 flow [2023-08-29 18:14:04,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 76 transitions, 228 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:14:04,435 INFO L231 Difference]: Finished difference. Result has 76 places, 74 transitions, 162 flow [2023-08-29 18:14:04,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=580, 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 18:14:04,436 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -8 predicate places. [2023-08-29 18:14:04,436 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 74 transitions, 162 flow [2023-08-29 18:14:04,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 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 18:14:04,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:14:04,437 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:14:04,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:14:04,438 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 18:14:04,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:14:04,440 INFO L85 PathProgramCache]: Analyzing trace with hash 918413480, now seen corresponding path program 1 times [2023-08-29 18:14:04,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:14:04,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115457906] [2023-08-29 18:14:04,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:14:04,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:14:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:14:04,527 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 18:14:04,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:14:04,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115457906] [2023-08-29 18:14:04,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115457906] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:14:04,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:14:04,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:14:04,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547324395] [2023-08-29 18:14:04,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:14:04,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:14:04,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:14:04,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:14:04,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:14:04,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 580 [2023-08-29 18:14:04,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 74 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 292.6666666666667) internal successors, (878), 3 states have internal predecessors, (878), 0 states have call successors, (0), 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 18:14:04,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:14:04,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 580 [2023-08-29 18:14:04,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:14:06,580 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 [] Killed by 15