./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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/weaver/chl-nzb-file-subst.wvr.c -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 57b20b3268fa30a07af1365aac59c96531ad2ebea6861c18a1d5dfea8339adbb --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 21:32:13,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:32:13,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:32:13,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:32:13,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:32:13,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:32:13,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:32:13,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:32:13,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:32:13,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:32:13,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:32:13,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:32:13,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:32:13,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:32:13,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:32:13,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:32:13,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:32:13,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:32:13,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:32:13,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:32:13,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:32:13,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:32:13,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:32:13,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:32:13,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:32:13,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:32:13,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:32:13,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:32:13,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:32:13,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:32:13,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:32:13,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:32:13,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:32:13,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:32:13,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:32:13,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:32:13,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:32:13,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:32:13,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:32:13,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:32:13,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:32:13,213 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:32:13,240 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:32:13,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:32:13,241 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:32:13,241 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:32:13,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:32:13,242 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:32:13,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:32:13,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:32:13,243 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:32:13,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:32:13,244 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:32:13,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:32:13,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:32:13,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:32:13,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:32:13,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:32:13,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:32:13,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:32:13,245 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:32:13,245 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:32:13,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:32:13,245 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:32:13,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:32:13,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:32:13,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:32:13,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:32:13,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:32:13,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:32:13,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:32:13,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:32:13,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:32:13,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:32:13,247 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:32:13,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:32:13,247 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:32:13,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:32:13,248 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:32:13,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b20b3268fa30a07af1365aac59c96531ad2ebea6861c18a1d5dfea8339adbb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:32:13,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:32:13,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:32:13,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:32:13,524 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:32:13,525 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:32:13,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c [2023-08-31 21:32:14,537 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:32:14,735 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:32:14,736 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c [2023-08-31 21:32:14,741 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5bd9cae4/47968e353c254c288af35a4eda132ed9/FLAG25708e393 [2023-08-31 21:32:14,752 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5bd9cae4/47968e353c254c288af35a4eda132ed9 [2023-08-31 21:32:14,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:32:14,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:32:14,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:32:14,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:32:14,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:32:14,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:32:14" (1/1) ... [2023-08-31 21:32:14,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b16e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:32:14, skipping insertion in model container [2023-08-31 21:32:14,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:32:14" (1/1) ... [2023-08-31 21:32:14,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:32:14,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:32:14,936 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c[6501,6514] [2023-08-31 21:32:14,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:32:14,947 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:32:14,985 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c[6501,6514] [2023-08-31 21:32:14,988 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:32:14,999 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:32:14,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:32:14 WrapperNode [2023-08-31 21:32:14,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:32:15,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:32:15,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:32:15,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:32:15,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:32:14" (1/1) ... [2023-08-31 21:32:15,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:32:14" (1/1) ... [2023-08-31 21:32:15,075 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 1336 [2023-08-31 21:32:15,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:32:15,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:32:15,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:32:15,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:32:15,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:32:14" (1/1) ... [2023-08-31 21:32:15,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:32:14" (1/1) ... [2023-08-31 21:32:15,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:32:14" (1/1) ... [2023-08-31 21:32:15,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:32:14" (1/1) ... [2023-08-31 21:32:15,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:32:14" (1/1) ... [2023-08-31 21:32:15,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:32:14" (1/1) ... [2023-08-31 21:32:15,153 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:32:14" (1/1) ... [2023-08-31 21:32:15,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:32:14" (1/1) ... [2023-08-31 21:32:15,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:32:15,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:32:15,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:32:15,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:32:15,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:32:14" (1/1) ... [2023-08-31 21:32:15,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:32:15,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:32:15,210 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) [2023-08-31 21:32:15,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:32:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:32:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:32:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:32:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:32:15,236 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:32:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:32:15,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:32:15,237 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-31 21:32:15,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-31 21:32:15,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:32:15,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 21:32:15,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:32:15,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:32:15,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:32:15,239 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 21:32:15,227 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 [2023-08-31 21:32:15,361 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:32:15,375 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:32:16,374 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:32:16,388 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:32:16,388 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-31 21:32:16,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:32:16 BoogieIcfgContainer [2023-08-31 21:32:16,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:32:16,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:32:16,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:32:16,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:32:16,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:32:14" (1/3) ... [2023-08-31 21:32:16,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@117f6a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:32:16, skipping insertion in model container [2023-08-31 21:32:16,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:32:14" (2/3) ... [2023-08-31 21:32:16,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@117f6a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:32:16, skipping insertion in model container [2023-08-31 21:32:16,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:32:16" (3/3) ... [2023-08-31 21:32:16,400 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2023-08-31 21:32:16,406 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:32:16,411 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:32:16,412 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 230 error locations. [2023-08-31 21:32:16,412 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:32:16,591 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-31 21:32:16,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1608 places, 1709 transitions, 3442 flow [2023-08-31 21:32:17,677 INFO L130 PetriNetUnfolder]: 111/1706 cut-off events. [2023-08-31 21:32:17,677 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:32:17,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1719 conditions, 1706 events. 111/1706 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7459 event pairs, 0 based on Foata normal form. 0/1365 useless extension candidates. Maximal degree in co-relation 1328. Up to 2 conditions per place. [2023-08-31 21:32:17,713 INFO L82 GeneralOperation]: Start removeDead. Operand has 1608 places, 1709 transitions, 3442 flow [2023-08-31 21:32:17,755 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1585 places, 1683 transitions, 3384 flow [2023-08-31 21:32:17,757 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:32:17,763 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1585 places, 1683 transitions, 3384 flow [2023-08-31 21:32:17,765 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1585 places, 1683 transitions, 3384 flow [2023-08-31 21:32:17,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1585 places, 1683 transitions, 3384 flow [2023-08-31 21:32:18,369 INFO L130 PetriNetUnfolder]: 108/1683 cut-off events. [2023-08-31 21:32:18,369 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:32:18,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1696 conditions, 1683 events. 108/1683 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7318 event pairs, 0 based on Foata normal form. 0/1346 useless extension candidates. Maximal degree in co-relation 1328. Up to 2 conditions per place. [2023-08-31 21:32:18,643 INFO L119 LiptonReduction]: Number of co-enabled transitions 1187286 [2023-08-31 21:32:47,120 INFO L134 LiptonReduction]: Checked pairs total: 3237948 [2023-08-31 21:32:47,120 INFO L136 LiptonReduction]: Total number of compositions: 1863 [2023-08-31 21:32:47,132 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:32:47,136 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;@d67016d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:32:47,136 INFO L358 AbstractCegarLoop]: Starting to check reachability of 431 error locations. [2023-08-31 21:32:47,137 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:32:47,137 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:32:47,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:32:47,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:32:47,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-08-31 21:32:47,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:32:47,142 INFO L85 PathProgramCache]: Analyzing trace with hash 7018, now seen corresponding path program 1 times [2023-08-31 21:32:47,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:32:47,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937367846] [2023-08-31 21:32:47,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:32:47,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:32:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:32:47,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:32:47,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:32:47,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937367846] [2023-08-31 21:32:47,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937367846] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:32:47,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:32:47,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:32:47,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074449738] [2023-08-31 21:32:47,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:32:47,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:32:47,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:32:47,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:32:47,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:32:47,251 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1665 out of 3572 [2023-08-31 21:32:47,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 496 transitions, 1010 flow. Second operand has 2 states, 2 states have (on average 1665.5) internal successors, (3331), 2 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:32:47,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:32:47,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1665 of 3572 [2023-08-31 21:32:47,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:33:59,329 INFO L130 PetriNetUnfolder]: 770085/1229078 cut-off events. [2023-08-31 21:33:59,330 INFO L131 PetriNetUnfolder]: For 9531/10422 co-relation queries the response was YES. [2023-08-31 21:34:01,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2241334 conditions, 1229078 events. 770085/1229078 cut-off events. For 9531/10422 co-relation queries the response was YES. Maximal size of possible extension queue 20067. Compared 12947999 event pairs, 568454 based on Foata normal form. 9601/1023967 useless extension candidates. Maximal degree in co-relation 2197497. Up to 1005193 conditions per place. [2023-08-31 21:34:07,708 INFO L137 encePairwiseOnDemand]: 3425/3572 looper letters, 201 selfloop transitions, 0 changer transitions 1/349 dead transitions. [2023-08-31 21:34:07,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 349 transitions, 1120 flow [2023-08-31 21:34:07,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:34:07,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:34:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3679 transitions. [2023-08-31 21:34:07,749 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5149776035834267 [2023-08-31 21:34:07,750 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 3679 transitions. [2023-08-31 21:34:07,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 3679 transitions. [2023-08-31 21:34:07,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:34:07,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 3679 transitions. [2023-08-31 21:34:07,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1839.5) internal successors, (3679), 2 states have internal predecessors, (3679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:34:07,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 3572.0) internal successors, (10716), 3 states have internal predecessors, (10716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:34:07,826 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 3572.0) internal successors, (10716), 3 states have internal predecessors, (10716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:34:07,827 INFO L175 Difference]: Start difference. First operand has 457 places, 496 transitions, 1010 flow. Second operand 2 states and 3679 transitions. [2023-08-31 21:34:07,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 349 transitions, 1120 flow [2023-08-31 21:34:07,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 349 transitions, 1108 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 21:34:07,976 INFO L231 Difference]: Finished difference. Result has 309 places, 348 transitions, 701 flow [2023-08-31 21:34:07,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3572, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=701, PETRI_PLACES=309, PETRI_TRANSITIONS=348} [2023-08-31 21:34:07,981 INFO L281 CegarLoopForPetriNet]: 457 programPoint places, -148 predicate places. [2023-08-31 21:34:07,981 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 348 transitions, 701 flow [2023-08-31 21:34:07,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1665.5) internal successors, (3331), 2 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:34:07,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:34:07,984 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:34:07,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:34:07,987 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err57ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-08-31 21:34:07,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:34:08,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1758057632, now seen corresponding path program 1 times [2023-08-31 21:34:08,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:34:08,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953207181] [2023-08-31 21:34:08,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:34:08,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:34:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:34:08,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:34:08,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:34:08,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953207181] [2023-08-31 21:34:08,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953207181] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:34:08,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:34:08,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:34:08,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961245666] [2023-08-31 21:34:08,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:34:08,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:34:08,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:34:08,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:34:08,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:34:08,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1653 out of 3572 [2023-08-31 21:34:08,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 348 transitions, 701 flow. Second operand has 3 states, 3 states have (on average 1655.0) internal successors, (4965), 3 states have internal predecessors, (4965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:34:08,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:34:08,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1653 of 3572 [2023-08-31 21:34:08,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand