./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/mult-dist.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/mult-dist.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 c22a326532494b0b5126a81d8882f3e958ed0a5a46e6da0f77df1a4da18ba846 --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 21:38:49,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:38:49,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:38:49,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:38:49,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:38:49,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:38:49,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:38:49,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:38:49,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:38:49,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:38:49,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:38:49,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:38:49,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:38:49,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:38:49,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:38:49,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:38:49,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:38:49,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:38:49,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:38:49,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:38:49,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:38:49,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:38:49,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:38:49,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:38:49,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:38:49,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:38:49,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:38:49,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:38:49,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:38:49,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:38:49,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:38:49,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:38:49,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:38:49,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:38:49,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:38:49,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:38:49,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:38:49,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:38:49,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:38:49,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:38:49,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:38:49,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:38:49,219 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:38:49,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:38:49,220 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:38:49,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:38:49,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:38:49,221 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:38:49,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:38:49,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:38:49,222 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:38:49,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:38:49,223 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:38:49,223 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:38:49,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:38:49,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:38:49,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:38:49,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:38:49,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:38:49,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:38:49,224 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:38:49,225 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:38:49,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:38:49,225 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:38:49,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:38:49,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:38:49,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:38:49,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:38:49,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:38:49,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:38:49,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:38:49,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:38:49,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:38:49,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:38:49,227 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:38:49,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:38:49,227 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:38:49,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:38:49,228 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:38:49,228 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c22a326532494b0b5126a81d8882f3e958ed0a5a46e6da0f77df1a4da18ba846 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:38:49,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:38:49,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:38:49,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:38:49,556 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:38:49,557 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:38:49,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/mult-dist.wvr.c [2023-08-31 21:38:50,649 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:38:50,884 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:38:50,884 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c [2023-08-31 21:38:50,889 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92f8aaed0/80df534f2bc8496596ea9559a5d8828d/FLAG2ee164a5e [2023-08-31 21:38:50,900 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92f8aaed0/80df534f2bc8496596ea9559a5d8828d [2023-08-31 21:38:50,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:38:50,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:38:50,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:38:50,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:38:50,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:38:50,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:38:50" (1/1) ... [2023-08-31 21:38:50,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e9d4929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:38:50, skipping insertion in model container [2023-08-31 21:38:50,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:38:50" (1/1) ... [2023-08-31 21:38:50,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:38:50,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:38:51,117 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/mult-dist.wvr.c[2116,2129] [2023-08-31 21:38:51,126 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:38:51,135 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:38:51,175 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/mult-dist.wvr.c[2116,2129] [2023-08-31 21:38:51,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:38:51,197 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:38:51,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:38:51 WrapperNode [2023-08-31 21:38:51,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:38:51,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:38:51,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:38:51,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:38:51,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:38:51" (1/1) ... [2023-08-31 21:38:51,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:38:51" (1/1) ... [2023-08-31 21:38:51,251 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 106 [2023-08-31 21:38:51,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:38:51,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:38:51,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:38:51,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:38:51,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:38:51" (1/1) ... [2023-08-31 21:38:51,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:38:51" (1/1) ... [2023-08-31 21:38:51,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:38:51" (1/1) ... [2023-08-31 21:38:51,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:38:51" (1/1) ... [2023-08-31 21:38:51,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:38:51" (1/1) ... [2023-08-31 21:38:51,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:38:51" (1/1) ... [2023-08-31 21:38:51,296 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:38:51" (1/1) ... [2023-08-31 21:38:51,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:38:51" (1/1) ... [2023-08-31 21:38:51,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:38:51,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:38:51,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:38:51,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:38:51,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:38:51" (1/1) ... [2023-08-31 21:38:51,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:38:51,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:38:51,334 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 21:38:51,360 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 21:38:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:38:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:38:51,373 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:38:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:38:51,374 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:38:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-31 21:38:51,374 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-31 21:38:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:38:51,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:38:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:38:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:38:51,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:38:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:38:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:38:51,376 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 21:38:51,489 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:38:51,490 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:38:51,822 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:38:51,830 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:38:51,830 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-31 21:38:51,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:38:51 BoogieIcfgContainer [2023-08-31 21:38:51,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:38:51,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:38:51,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:38:51,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:38:51,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:38:50" (1/3) ... [2023-08-31 21:38:51,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ac9585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:38:51, skipping insertion in model container [2023-08-31 21:38:51,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:38:51" (2/3) ... [2023-08-31 21:38:51,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ac9585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:38:51, skipping insertion in model container [2023-08-31 21:38:51,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:38:51" (3/3) ... [2023-08-31 21:38:51,842 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-dist.wvr.c [2023-08-31 21:38:51,848 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:38:51,857 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:38:51,858 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-08-31 21:38:51,859 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:38:51,970 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-31 21:38:52,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 193 places, 190 transitions, 404 flow [2023-08-31 21:38:52,092 INFO L130 PetriNetUnfolder]: 7/187 cut-off events. [2023-08-31 21:38:52,092 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:38:52,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 187 events. 7/187 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 260 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 109. Up to 2 conditions per place. [2023-08-31 21:38:52,099 INFO L82 GeneralOperation]: Start removeDead. Operand has 193 places, 190 transitions, 404 flow [2023-08-31 21:38:52,103 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 170 transitions, 358 flow [2023-08-31 21:38:52,106 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:38:52,113 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 170 transitions, 358 flow [2023-08-31 21:38:52,116 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 170 transitions, 358 flow [2023-08-31 21:38:52,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 170 transitions, 358 flow [2023-08-31 21:38:52,161 INFO L130 PetriNetUnfolder]: 6/170 cut-off events. [2023-08-31 21:38:52,161 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:38:52,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 170 events. 6/170 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 109. Up to 2 conditions per place. [2023-08-31 21:38:52,169 INFO L119 LiptonReduction]: Number of co-enabled transitions 7362 [2023-08-31 21:38:55,427 INFO L134 LiptonReduction]: Checked pairs total: 21900 [2023-08-31 21:38:55,428 INFO L136 LiptonReduction]: Total number of compositions: 162 [2023-08-31 21:38:55,440 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:38:55,446 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;@55dae882, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:38:55,446 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-31 21:38:55,447 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:38:55,448 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:38:55,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:38:55,448 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:38:55,449 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 21:38:55,453 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:38:55,453 INFO L85 PathProgramCache]: Analyzing trace with hash 676, now seen corresponding path program 1 times [2023-08-31 21:38:55,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:38:55,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814623244] [2023-08-31 21:38:55,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:38:55,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:38:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:38:55,538 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 21:38:55,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:38:55,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814623244] [2023-08-31 21:38:55,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814623244] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:38:55,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:38:55,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:38:55,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816949110] [2023-08-31 21:38:55,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:38:55,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:38:55,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:38:55,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:38:55,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:38:55,572 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 352 [2023-08-31 21:38:55,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 57 transitions, 132 flow. Second operand has 2 states, 2 states have (on average 179.5) internal successors, (359), 2 states have internal predecessors, (359), 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 21:38:55,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:38:55,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 352 [2023-08-31 21:38:55,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:38:55,798 INFO L130 PetriNetUnfolder]: 824/1641 cut-off events. [2023-08-31 21:38:55,798 INFO L131 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2023-08-31 21:38:55,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2854 conditions, 1641 events. 824/1641 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 10480 event pairs, 493 based on Foata normal form. 444/1628 useless extension candidates. Maximal degree in co-relation 2454. Up to 1122 conditions per place. [2023-08-31 21:38:55,810 INFO L137 encePairwiseOnDemand]: 334/352 looper letters, 22 selfloop transitions, 0 changer transitions 1/39 dead transitions. [2023-08-31 21:38:55,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 39 transitions, 142 flow [2023-08-31 21:38:55,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:38:55,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:38:55,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 399 transitions. [2023-08-31 21:38:55,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5667613636363636 [2023-08-31 21:38:55,823 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 399 transitions. [2023-08-31 21:38:55,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 399 transitions. [2023-08-31 21:38:55,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:38:55,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 399 transitions. [2023-08-31 21:38:55,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 199.5) internal successors, (399), 2 states have internal predecessors, (399), 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 21:38:55,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 352.0) internal successors, (1056), 3 states have internal predecessors, (1056), 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 21:38:55,833 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 352.0) internal successors, (1056), 3 states have internal predecessors, (1056), 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 21:38:55,835 INFO L175 Difference]: Start difference. First operand has 61 places, 57 transitions, 132 flow. Second operand 2 states and 399 transitions. [2023-08-31 21:38:55,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 39 transitions, 142 flow [2023-08-31 21:38:55,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 39 transitions, 130 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 21:38:55,841 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 81 flow [2023-08-31 21:38:55,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=81, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2023-08-31 21:38:55,846 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -20 predicate places. [2023-08-31 21:38:55,846 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 81 flow [2023-08-31 21:38:55,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 179.5) internal successors, (359), 2 states have internal predecessors, (359), 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 21:38:55,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:38:55,847 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 21:38:55,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:38:55,848 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 21:38:55,848 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:38:55,848 INFO L85 PathProgramCache]: Analyzing trace with hash 645617695, now seen corresponding path program 1 times [2023-08-31 21:38:55,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:38:55,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444756604] [2023-08-31 21:38:55,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:38:55,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:38:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:38:55,916 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 21:38:55,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:38:55,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444756604] [2023-08-31 21:38:55,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444756604] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:38:55,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:38:55,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:38:55,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508579048] [2023-08-31 21:38:55,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:38:55,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:38:55,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:38:55,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:38:55,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:38:55,930 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 352 [2023-08-31 21:38:55,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 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 21:38:55,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:38:55,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 352 [2023-08-31 21:38:55,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:38:56,141 INFO L130 PetriNetUnfolder]: 1258/2171 cut-off events. [2023-08-31 21:38:56,142 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2023-08-31 21:38:56,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3973 conditions, 2171 events. 1258/2171 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 12961 event pairs, 615 based on Foata normal form. 0/1804 useless extension candidates. Maximal degree in co-relation 3970. Up to 1722 conditions per place. [2023-08-31 21:38:56,153 INFO L137 encePairwiseOnDemand]: 348/352 looper letters, 34 selfloop transitions, 2 changer transitions 0/47 dead transitions. [2023-08-31 21:38:56,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 47 transitions, 173 flow [2023-08-31 21:38:56,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:38:56,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:38:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 554 transitions. [2023-08-31 21:38:56,156 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5246212121212122 [2023-08-31 21:38:56,157 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 554 transitions. [2023-08-31 21:38:56,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 554 transitions. [2023-08-31 21:38:56,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:38:56,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 554 transitions. [2023-08-31 21:38:56,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 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 21:38:56,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 352.0) internal successors, (1408), 4 states have internal predecessors, (1408), 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 21:38:56,162 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 352.0) internal successors, (1408), 4 states have internal predecessors, (1408), 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 21:38:56,162 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 81 flow. Second operand 3 states and 554 transitions. [2023-08-31 21:38:56,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 47 transitions, 173 flow [2023-08-31 21:38:56,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 47 transitions, 173 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:38:56,164 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 91 flow [2023-08-31 21:38:56,164 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2023-08-31 21:38:56,165 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -20 predicate places. [2023-08-31 21:38:56,165 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 38 transitions, 91 flow [2023-08-31 21:38:56,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 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 21:38:56,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:38:56,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:38:56,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:38:56,166 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 21:38:56,166 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:38:56,167 INFO L85 PathProgramCache]: Analyzing trace with hash -2137203881, now seen corresponding path program 1 times [2023-08-31 21:38:56,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:38:56,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133346504] [2023-08-31 21:38:56,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:38:56,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:38:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:38:56,207 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 21:38:56,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:38:56,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133346504] [2023-08-31 21:38:56,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133346504] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:38:56,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:38:56,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:38:56,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390165984] [2023-08-31 21:38:56,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:38:56,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:38:56,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:38:56,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:38:56,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:38:56,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 352 [2023-08-31 21:38:56,219 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 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 21:38:56,219 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:38:56,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 352 [2023-08-31 21:38:56,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:38:56,384 INFO L130 PetriNetUnfolder]: 1106/1990 cut-off events. [2023-08-31 21:38:56,385 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-08-31 21:38:56,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3722 conditions, 1990 events. 1106/1990 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 11754 event pairs, 253 based on Foata normal form. 0/1690 useless extension candidates. Maximal degree in co-relation 3718. Up to 1503 conditions per place. [2023-08-31 21:38:56,396 INFO L137 encePairwiseOnDemand]: 348/352 looper letters, 33 selfloop transitions, 2 changer transitions 0/47 dead transitions. [2023-08-31 21:38:56,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 47 transitions, 181 flow [2023-08-31 21:38:56,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:38:56,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:38:56,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 553 transitions. [2023-08-31 21:38:56,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5236742424242424 [2023-08-31 21:38:56,399 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 553 transitions. [2023-08-31 21:38:56,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 553 transitions. [2023-08-31 21:38:56,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:38:56,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 553 transitions. [2023-08-31 21:38:56,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 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 21:38:56,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 352.0) internal successors, (1408), 4 states have internal predecessors, (1408), 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 21:38:56,403 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 352.0) internal successors, (1408), 4 states have internal predecessors, (1408), 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 21:38:56,403 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 91 flow. Second operand 3 states and 553 transitions. [2023-08-31 21:38:56,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 47 transitions, 181 flow [2023-08-31 21:38:56,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 47 transitions, 181 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:38:56,405 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 101 flow [2023-08-31 21:38:56,405 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2023-08-31 21:38:56,406 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -19 predicate places. [2023-08-31 21:38:56,406 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 101 flow [2023-08-31 21:38:56,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 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 21:38:56,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:38:56,407 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:38:56,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:38:56,407 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 21:38:56,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:38:56,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1963468730, now seen corresponding path program 1 times [2023-08-31 21:38:56,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:38:56,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259257614] [2023-08-31 21:38:56,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:38:56,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:38:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:38:56,459 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 21:38:56,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:38:56,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259257614] [2023-08-31 21:38:56,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259257614] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:38:56,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:38:56,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:38:56,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943946159] [2023-08-31 21:38:56,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:38:56,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:38:56,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:38:56,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:38:56,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:38:56,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 352 [2023-08-31 21:38:56,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 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 21:38:56,481 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:38:56,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 352 [2023-08-31 21:38:56,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:38:56,624 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L57-2-->L57-3: Formula: (= |v_#race~b~0_4| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_4|} AuxVars[] AssignedVars[#race~b~0][33], [211#(= |#race~c~0| 0), Black: 204#true, 201#(= |#race~a~0| 0), 40#L57-3true, 99#L74-4true, 169#L41-1true, 206#(= |#race~b~0| 0), Black: 199#true, 196#true, 174#L49-1true]) [2023-08-31 21:38:56,624 INFO L383 tUnfolder$Statistics]: this new event has 20 ancestors and is cut-off event [2023-08-31 21:38:56,624 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2023-08-31 21:38:56,625 INFO L386 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2023-08-31 21:38:56,625 INFO L386 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2023-08-31 21:38:56,644 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L57-2-->L57-3: Formula: (= |v_#race~b~0_4| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_4|} AuxVars[] AssignedVars[#race~b~0][33], [Black: 204#true, 211#(= |#race~c~0| 0), 201#(= |#race~a~0| 0), 40#L57-3true, 26#L75-6true, 169#L41-1true, 206#(= |#race~b~0| 0), Black: 199#true, 196#true, 174#L49-1true]) [2023-08-31 21:38:56,644 INFO L383 tUnfolder$Statistics]: this new event has 21 ancestors and is cut-off event [2023-08-31 21:38:56,644 INFO L386 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-08-31 21:38:56,645 INFO L386 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2023-08-31 21:38:56,645 INFO L386 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2023-08-31 21:38:56,687 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([433] L49-7-->L49-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][32], [Black: 204#true, 211#(= |#race~c~0| 0), 201#(= |#race~a~0| 0), 40#L57-3true, 99#L74-4true, 169#L41-1true, 206#(= |#race~b~0| 0), Black: 199#true, 196#true, 174#L49-1true]) [2023-08-31 21:38:56,688 INFO L383 tUnfolder$Statistics]: this new event has 24 ancestors and is cut-off event [2023-08-31 21:38:56,688 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2023-08-31 21:38:56,688 INFO L386 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2023-08-31 21:38:56,688 INFO L386 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2023-08-31 21:38:56,692 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([433] L49-7-->L49-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][32], [211#(= |#race~c~0| 0), Black: 204#true, 40#L57-3true, 201#(= |#race~a~0| 0), 26#L75-6true, 169#L41-1true, 206#(= |#race~b~0| 0), Black: 199#true, 196#true, 174#L49-1true]) [2023-08-31 21:38:56,693 INFO L383 tUnfolder$Statistics]: this new event has 25 ancestors and is cut-off event [2023-08-31 21:38:56,693 INFO L386 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2023-08-31 21:38:56,693 INFO L386 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-08-31 21:38:56,693 INFO L386 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2023-08-31 21:38:56,695 INFO L130 PetriNetUnfolder]: 1539/2489 cut-off events. [2023-08-31 21:38:56,695 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2023-08-31 21:38:56,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4924 conditions, 2489 events. 1539/2489 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 13888 event pairs, 294 based on Foata normal form. 0/1881 useless extension candidates. Maximal degree in co-relation 4919. Up to 1664 conditions per place. [2023-08-31 21:38:56,703 INFO L137 encePairwiseOnDemand]: 346/352 looper letters, 0 selfloop transitions, 0 changer transitions 53/53 dead transitions. [2023-08-31 21:38:56,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 53 transitions, 217 flow [2023-08-31 21:38:56,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:38:56,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:38:56,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 551 transitions. [2023-08-31 21:38:56,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.521780303030303 [2023-08-31 21:38:56,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 551 transitions. [2023-08-31 21:38:56,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 551 transitions. [2023-08-31 21:38:56,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:38:56,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 551 transitions. [2023-08-31 21:38:56,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 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 21:38:56,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 352.0) internal successors, (1408), 4 states have internal predecessors, (1408), 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 21:38:56,709 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 352.0) internal successors, (1408), 4 states have internal predecessors, (1408), 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 21:38:56,710 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 101 flow. Second operand 3 states and 551 transitions. [2023-08-31 21:38:56,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 53 transitions, 217 flow [2023-08-31 21:38:56,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 53 transitions, 217 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:38:56,711 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-08-31 21:38:56,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=352, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-08-31 21:38:56,712 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -20 predicate places. [2023-08-31 21:38:56,712 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-08-31 21:38:56,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 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 21:38:56,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2023-08-31 21:38:56,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2023-08-31 21:38:56,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2023-08-31 21:38:56,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2023-08-31 21:38:56,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2023-08-31 21:38:56,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2023-08-31 21:38:56,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2023-08-31 21:38:56,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2023-08-31 21:38:56,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2023-08-31 21:38:56,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2023-08-31 21:38:56,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2023-08-31 21:38:56,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2023-08-31 21:38:56,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2023-08-31 21:38:56,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2023-08-31 21:38:56,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2023-08-31 21:38:56,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2023-08-31 21:38:56,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2023-08-31 21:38:56,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2023-08-31 21:38:56,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2023-08-31 21:38:56,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2023-08-31 21:38:56,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2023-08-31 21:38:56,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2023-08-31 21:38:56,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 38 remaining) [2023-08-31 21:38:56,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 38 remaining) [2023-08-31 21:38:56,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2023-08-31 21:38:56,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2023-08-31 21:38:56,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2023-08-31 21:38:56,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2023-08-31 21:38:56,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2023-08-31 21:38:56,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2023-08-31 21:38:56,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2023-08-31 21:38:56,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2023-08-31 21:38:56,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2023-08-31 21:38:56,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2023-08-31 21:38:56,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2023-08-31 21:38:56,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2023-08-31 21:38:56,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2023-08-31 21:38:56,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2023-08-31 21:38:56,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:38:56,723 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-31 21:38:56,727 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:38:56,728 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:38:56,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:38:56 BasicIcfg [2023-08-31 21:38:56,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:38:56,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:38:56,731 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:38:56,732 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:38:56,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:38:51" (3/4) ... [2023-08-31 21:38:56,734 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:38:56,739 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:38:56,739 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:38:56,739 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-31 21:38:56,743 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-08-31 21:38:56,743 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:38:56,743 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:38:56,744 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:38:56,774 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:38:56,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:38:56,774 INFO L158 Benchmark]: Toolchain (without parser) took 5870.00ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 62.9MB in the beginning and 56.8MB in the end (delta: 6.1MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2023-08-31 21:38:56,775 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 45.8MB in the beginning and 45.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:38:56,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.06ms. Allocated memory is still 83.9MB. Free memory was 62.7MB in the beginning and 51.4MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-31 21:38:56,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.51ms. Allocated memory is still 83.9MB. Free memory was 51.4MB in the beginning and 49.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:38:56,776 INFO L158 Benchmark]: Boogie Preprocessor took 51.11ms. Allocated memory is still 83.9MB. Free memory was 49.3MB in the beginning and 47.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:38:56,776 INFO L158 Benchmark]: RCFGBuilder took 527.60ms. Allocated memory is still 83.9MB. Free memory was 47.7MB in the beginning and 54.7MB in the end (delta: -6.9MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-08-31 21:38:56,776 INFO L158 Benchmark]: TraceAbstraction took 4897.29ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 54.0MB in the beginning and 59.9MB in the end (delta: -5.9MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. [2023-08-31 21:38:56,776 INFO L158 Benchmark]: Witness Printer took 42.65ms. Allocated memory is still 121.6MB. Free memory was 59.9MB in the beginning and 56.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:38:56,778 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 45.8MB in the beginning and 45.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.06ms. Allocated memory is still 83.9MB. Free memory was 62.7MB in the beginning and 51.4MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.51ms. Allocated memory is still 83.9MB. Free memory was 51.4MB in the beginning and 49.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.11ms. Allocated memory is still 83.9MB. Free memory was 49.3MB in the beginning and 47.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 527.60ms. Allocated memory is still 83.9MB. Free memory was 47.7MB in the beginning and 54.7MB in the end (delta: -6.9MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4897.29ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 54.0MB in the beginning and 59.9MB in the end (delta: -5.9MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. * Witness Printer took 42.65ms. Allocated memory is still 121.6MB. Free memory was 59.9MB in the beginning and 56.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 174 PlacesBefore, 61 PlacesAfterwards, 170 TransitionsBefore, 57 TransitionsAfterwards, 7362 CoEnabledTransitionPairs, 8 FixpointIterations, 64 TrivialSequentialCompositions, 88 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 0 ChoiceCompositions, 162 TotalNumberOfCompositions, 21900 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11367, independent: 10957, independent conditional: 0, independent unconditional: 10957, dependent: 410, dependent conditional: 0, dependent unconditional: 410, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4295, independent: 4241, independent conditional: 0, independent unconditional: 4241, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11367, independent: 6716, independent conditional: 0, independent unconditional: 6716, dependent: 356, dependent conditional: 0, dependent unconditional: 356, unknown: 4295, unknown conditional: 0, unknown unconditional: 4295] , Statistics on independence cache: Total cache size (in pairs): 422, Positive cache size: 393, Positive conditional cache size: 0, Positive unconditional cache size: 393, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 259 locations, 38 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185 IncrementalHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 7 mSDtfsCounter, 185 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:38:56,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE