./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i --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/goblint-regression/06-symbeq_23-idxsense_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --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 20:07:36,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 20:07:36,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 20:07:36,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 20:07:36,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 20:07:36,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 20:07:36,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 20:07:36,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 20:07:36,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 20:07:36,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 20:07:36,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 20:07:36,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 20:07:36,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 20:07:36,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 20:07:36,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 20:07:36,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 20:07:36,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 20:07:36,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 20:07:36,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 20:07:36,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 20:07:36,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 20:07:36,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 20:07:36,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 20:07:36,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 20:07:36,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 20:07:36,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 20:07:36,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 20:07:36,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 20:07:36,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 20:07:36,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 20:07:36,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 20:07:36,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 20:07:36,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 20:07:36,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 20:07:36,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 20:07:36,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 20:07:36,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 20:07:36,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 20:07:36,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 20:07:36,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 20:07:36,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 20:07:36,207 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 20:07:36,241 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 20:07:36,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 20:07:36,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 20:07:36,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 20:07:36,243 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 20:07:36,243 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 20:07:36,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 20:07:36,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 20:07:36,244 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 20:07:36,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 20:07:36,245 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 20:07:36,245 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 20:07:36,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 20:07:36,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 20:07:36,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 20:07:36,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 20:07:36,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 20:07:36,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 20:07:36,246 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 20:07:36,247 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 20:07:36,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 20:07:36,247 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 20:07:36,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 20:07:36,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 20:07:36,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 20:07:36,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 20:07:36,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:07:36,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 20:07:36,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 20:07:36,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 20:07:36,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 20:07:36,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 20:07:36,249 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 20:07:36,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 20:07:36,250 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 20:07:36,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 20:07:36,250 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 20:07:36,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 20:07:36,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 20:07:36,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 20:07:36,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 20:07:36,576 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 20:07:36,576 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 20:07:36,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i [2023-08-31 20:07:37,655 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 20:07:37,898 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 20:07:37,899 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i [2023-08-31 20:07:37,911 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e0cdba33/854430676e624c449fb830cd3bcf94b2/FLAGbb87707b5 [2023-08-31 20:07:37,926 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e0cdba33/854430676e624c449fb830cd3bcf94b2 [2023-08-31 20:07:37,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 20:07:37,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 20:07:37,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 20:07:37,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 20:07:37,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 20:07:37,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:07:37" (1/1) ... [2023-08-31 20:07:37,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e26c3c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:07:37, skipping insertion in model container [2023-08-31 20:07:37,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:07:37" (1/1) ... [2023-08-31 20:07:37,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 20:07:37,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 20:07:38,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:07:38,286 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 20:07:38,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:07:38,384 INFO L208 MainTranslator]: Completed translation [2023-08-31 20:07:38,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:07:38 WrapperNode [2023-08-31 20:07:38,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 20:07:38,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 20:07:38,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 20:07:38,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 20:07:38,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:07:38" (1/1) ... [2023-08-31 20:07:38,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:07:38" (1/1) ... [2023-08-31 20:07:38,442 INFO L138 Inliner]: procedures = 161, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2023-08-31 20:07:38,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 20:07:38,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 20:07:38,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 20:07:38,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 20:07:38,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:07:38" (1/1) ... [2023-08-31 20:07:38,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:07:38" (1/1) ... [2023-08-31 20:07:38,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:07:38" (1/1) ... [2023-08-31 20:07:38,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:07:38" (1/1) ... [2023-08-31 20:07:38,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:07:38" (1/1) ... [2023-08-31 20:07:38,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:07:38" (1/1) ... [2023-08-31 20:07:38,468 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:07:38" (1/1) ... [2023-08-31 20:07:38,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:07:38" (1/1) ... [2023-08-31 20:07:38,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 20:07:38,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 20:07:38,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 20:07:38,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 20:07:38,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:07:38" (1/1) ... [2023-08-31 20:07:38,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:07:38,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:07:38,511 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 20:07:38,521 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 20:07:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 20:07:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 20:07:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 20:07:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 20:07:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 20:07:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 20:07:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 20:07:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 20:07:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 20:07:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 20:07:38,549 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 20:07:38,721 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 20:07:38,723 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 20:07:38,968 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 20:07:38,974 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 20:07:38,976 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-31 20:07:38,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:07:38 BoogieIcfgContainer [2023-08-31 20:07:38,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 20:07:38,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 20:07:38,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 20:07:38,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 20:07:38,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 08:07:37" (1/3) ... [2023-08-31 20:07:38,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358e3eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:07:38, skipping insertion in model container [2023-08-31 20:07:38,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:07:38" (2/3) ... [2023-08-31 20:07:38,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@358e3eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:07:38, skipping insertion in model container [2023-08-31 20:07:38,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:07:38" (3/3) ... [2023-08-31 20:07:38,986 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2023-08-31 20:07:38,993 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 20:07:39,001 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 20:07:39,001 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-31 20:07:39,001 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 20:07:39,097 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 20:07:39,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 101 transitions, 207 flow [2023-08-31 20:07:39,196 INFO L130 PetriNetUnfolder]: 2/100 cut-off events. [2023-08-31 20:07:39,196 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:07:39,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 2/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-08-31 20:07:39,200 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 101 transitions, 207 flow [2023-08-31 20:07:39,206 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 100 transitions, 203 flow [2023-08-31 20:07:39,209 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 20:07:39,227 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 100 transitions, 203 flow [2023-08-31 20:07:39,230 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 100 transitions, 203 flow [2023-08-31 20:07:39,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 100 transitions, 203 flow [2023-08-31 20:07:39,260 INFO L130 PetriNetUnfolder]: 2/100 cut-off events. [2023-08-31 20:07:39,261 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:07:39,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 2/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-08-31 20:07:39,264 INFO L119 LiptonReduction]: Number of co-enabled transitions 2550 [2023-08-31 20:07:40,486 INFO L134 LiptonReduction]: Checked pairs total: 13239 [2023-08-31 20:07:40,486 INFO L136 LiptonReduction]: Total number of compositions: 49 [2023-08-31 20:07:40,510 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 20:07:40,516 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;@7f07cecc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 20:07:40,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-31 20:07:40,526 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2023-08-31 20:07:40,526 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:07:40,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:40,527 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:40,541 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-31 20:07:40,545 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:40,546 INFO L85 PathProgramCache]: Analyzing trace with hash -808171140, now seen corresponding path program 1 times [2023-08-31 20:07:40,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:40,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358889568] [2023-08-31 20:07:40,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:40,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:40,811 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 20:07:40,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:40,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358889568] [2023-08-31 20:07:40,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358889568] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:40,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:40,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:07:40,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069690071] [2023-08-31 20:07:40,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:40,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:07:40,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:40,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:07:40,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:07:40,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 150 [2023-08-31 20:07:40,878 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 20:07:40,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:40,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 150 [2023-08-31 20:07:40,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:40,987 INFO L130 PetriNetUnfolder]: 61/273 cut-off events. [2023-08-31 20:07:40,987 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:07:40,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 273 events. 61/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1170 event pairs, 60 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 404. Up to 141 conditions per place. [2023-08-31 20:07:40,993 INFO L137 encePairwiseOnDemand]: 147/150 looper letters, 19 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2023-08-31 20:07:40,993 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 151 flow [2023-08-31 20:07:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:07:40,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:07:41,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2023-08-31 20:07:41,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6822222222222222 [2023-08-31 20:07:41,015 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2023-08-31 20:07:41,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2023-08-31 20:07:41,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:41,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2023-08-31 20:07:41,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 20:07:41,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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 20:07:41,028 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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 20:07:41,029 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 107 flow. Second operand 3 states and 307 transitions. [2023-08-31 20:07:41,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 151 flow [2023-08-31 20:07:41,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:07:41,034 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 118 flow [2023-08-31 20:07:41,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2023-08-31 20:07:41,039 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2023-08-31 20:07:41,039 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 118 flow [2023-08-31 20:07:41,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 20:07:41,040 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:41,040 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:41,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 20:07:41,040 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-31 20:07:41,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:41,048 INFO L85 PathProgramCache]: Analyzing trace with hash -968427805, now seen corresponding path program 1 times [2023-08-31 20:07:41,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:41,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814716870] [2023-08-31 20:07:41,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:41,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:41,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:41,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814716870] [2023-08-31 20:07:41,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814716870] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 20:07:41,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009793423] [2023-08-31 20:07:41,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:41,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:07:41,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:07:41,170 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 20:07:41,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-31 20:07:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:41,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-31 20:07:41,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 20:07:41,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:41,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 20:07:41,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:41,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009793423] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 20:07:41,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 20:07:41,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-31 20:07:41,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996246091] [2023-08-31 20:07:41,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 20:07:41,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-31 20:07:41,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:41,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-31 20:07:41,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-31 20:07:41,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 150 [2023-08-31 20:07:41,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 118 flow. Second operand has 7 states, 7 states have (on average 95.42857142857143) internal successors, (668), 7 states have internal predecessors, (668), 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 20:07:41,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:41,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 150 [2023-08-31 20:07:41,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:41,440 INFO L130 PetriNetUnfolder]: 61/276 cut-off events. [2023-08-31 20:07:41,440 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:07:41,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 276 events. 61/276 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1150 event pairs, 60 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 423. Up to 141 conditions per place. [2023-08-31 20:07:41,444 INFO L137 encePairwiseOnDemand]: 147/150 looper letters, 19 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2023-08-31 20:07:41,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 56 transitions, 178 flow [2023-08-31 20:07:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:07:41,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:07:41,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 591 transitions. [2023-08-31 20:07:41,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6566666666666666 [2023-08-31 20:07:41,449 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 591 transitions. [2023-08-31 20:07:41,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 591 transitions. [2023-08-31 20:07:41,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:41,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 591 transitions. [2023-08-31 20:07:41,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 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 20:07:41,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 20:07:41,459 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 20:07:41,459 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 118 flow. Second operand 6 states and 591 transitions. [2023-08-31 20:07:41,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 56 transitions, 178 flow [2023-08-31 20:07:41,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 56 transitions, 174 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-31 20:07:41,461 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 150 flow [2023-08-31 20:07:41,461 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=150, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2023-08-31 20:07:41,462 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 9 predicate places. [2023-08-31 20:07:41,462 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 150 flow [2023-08-31 20:07:41,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.42857142857143) internal successors, (668), 7 states have internal predecessors, (668), 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 20:07:41,463 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:41,463 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:41,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-31 20:07:41,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:07:41,668 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-31 20:07:41,668 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:41,668 INFO L85 PathProgramCache]: Analyzing trace with hash -980343166, now seen corresponding path program 2 times [2023-08-31 20:07:41,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:41,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791356772] [2023-08-31 20:07:41,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:41,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:42,103 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-31 20:07:42,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:42,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791356772] [2023-08-31 20:07:42,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791356772] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:42,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:42,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:07:42,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153766181] [2023-08-31 20:07:42,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:42,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:07:42,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:42,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:07:42,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:07:42,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 150 [2023-08-31 20:07:42,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 150 flow. Second operand has 6 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 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 20:07:42,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:42,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 150 [2023-08-31 20:07:42,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:42,481 INFO L130 PetriNetUnfolder]: 109/356 cut-off events. [2023-08-31 20:07:42,482 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 20:07:42,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 631 conditions, 356 events. 109/356 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1530 event pairs, 72 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 598. Up to 171 conditions per place. [2023-08-31 20:07:42,484 INFO L137 encePairwiseOnDemand]: 144/150 looper letters, 51 selfloop transitions, 5 changer transitions 0/79 dead transitions. [2023-08-31 20:07:42,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 79 transitions, 308 flow [2023-08-31 20:07:42,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:07:42,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:07:42,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 575 transitions. [2023-08-31 20:07:42,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2023-08-31 20:07:42,493 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 575 transitions. [2023-08-31 20:07:42,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 575 transitions. [2023-08-31 20:07:42,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:42,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 575 transitions. [2023-08-31 20:07:42,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.83333333333333) internal successors, (575), 6 states have internal predecessors, (575), 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 20:07:42,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 20:07:42,498 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 20:07:42,498 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 150 flow. Second operand 6 states and 575 transitions. [2023-08-31 20:07:42,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 79 transitions, 308 flow [2023-08-31 20:07:42,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 79 transitions, 294 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-31 20:07:42,500 INFO L231 Difference]: Finished difference. Result has 67 places, 55 transitions, 144 flow [2023-08-31 20:07:42,501 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=144, PETRI_PLACES=67, PETRI_TRANSITIONS=55} [2023-08-31 20:07:42,501 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 12 predicate places. [2023-08-31 20:07:42,501 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 55 transitions, 144 flow [2023-08-31 20:07:42,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 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 20:07:42,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:42,502 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:42,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 20:07:42,503 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-31 20:07:42,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:42,503 INFO L85 PathProgramCache]: Analyzing trace with hash -738465348, now seen corresponding path program 1 times [2023-08-31 20:07:42,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:42,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128032997] [2023-08-31 20:07:42,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:42,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:42,736 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-31 20:07:42,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:42,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128032997] [2023-08-31 20:07:42,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128032997] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:42,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:42,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:07:42,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138866371] [2023-08-31 20:07:42,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:42,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:07:42,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:42,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:07:42,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:07:42,948 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 150 [2023-08-31 20:07:42,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 144 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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 20:07:42,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:42,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 150 [2023-08-31 20:07:42,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:43,291 INFO L130 PetriNetUnfolder]: 391/926 cut-off events. [2023-08-31 20:07:43,292 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2023-08-31 20:07:43,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1812 conditions, 926 events. 391/926 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4851 event pairs, 118 based on Foata normal form. 0/897 useless extension candidates. Maximal degree in co-relation 1785. Up to 387 conditions per place. [2023-08-31 20:07:43,318 INFO L137 encePairwiseOnDemand]: 128/150 looper letters, 134 selfloop transitions, 42 changer transitions 0/189 dead transitions. [2023-08-31 20:07:43,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 189 transitions, 772 flow [2023-08-31 20:07:43,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:07:43,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:07:43,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 630 transitions. [2023-08-31 20:07:43,320 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7 [2023-08-31 20:07:43,321 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 630 transitions. [2023-08-31 20:07:43,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 630 transitions. [2023-08-31 20:07:43,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:43,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 630 transitions. [2023-08-31 20:07:43,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 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 20:07:43,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 20:07:43,325 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 20:07:43,325 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 144 flow. Second operand 6 states and 630 transitions. [2023-08-31 20:07:43,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 189 transitions, 772 flow [2023-08-31 20:07:43,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 189 transitions, 754 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 20:07:43,329 INFO L231 Difference]: Finished difference. Result has 72 places, 101 transitions, 450 flow [2023-08-31 20:07:43,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=450, PETRI_PLACES=72, PETRI_TRANSITIONS=101} [2023-08-31 20:07:43,330 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 17 predicate places. [2023-08-31 20:07:43,330 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 101 transitions, 450 flow [2023-08-31 20:07:43,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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 20:07:43,331 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:43,331 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:43,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 20:07:43,331 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-31 20:07:43,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:43,332 INFO L85 PathProgramCache]: Analyzing trace with hash 2132318186, now seen corresponding path program 1 times [2023-08-31 20:07:43,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:43,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143518788] [2023-08-31 20:07:43,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:43,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:43,405 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:43,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:43,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143518788] [2023-08-31 20:07:43,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143518788] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 20:07:43,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066048405] [2023-08-31 20:07:43,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:43,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:07:43,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:07:43,408 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 20:07:43,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-31 20:07:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:43,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-31 20:07:43,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 20:07:43,527 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:43,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 20:07:43,595 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:07:43,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066048405] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 20:07:43,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 20:07:43,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-31 20:07:43,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357897887] [2023-08-31 20:07:43,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 20:07:43,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 20:07:43,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:43,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 20:07:43,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-31 20:07:43,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 150 [2023-08-31 20:07:43,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 101 transitions, 450 flow. Second operand has 13 states, 13 states have (on average 95.38461538461539) internal successors, (1240), 13 states have internal predecessors, (1240), 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 20:07:43,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:43,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 150 [2023-08-31 20:07:43,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:43,778 INFO L130 PetriNetUnfolder]: 181/619 cut-off events. [2023-08-31 20:07:43,778 INFO L131 PetriNetUnfolder]: For 274/299 co-relation queries the response was YES. [2023-08-31 20:07:43,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1539 conditions, 619 events. 181/619 cut-off events. For 274/299 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3483 event pairs, 88 based on Foata normal form. 8/597 useless extension candidates. Maximal degree in co-relation 1484. Up to 265 conditions per place. [2023-08-31 20:07:43,782 INFO L137 encePairwiseOnDemand]: 147/150 looper letters, 35 selfloop transitions, 11 changer transitions 0/107 dead transitions. [2023-08-31 20:07:43,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 107 transitions, 578 flow [2023-08-31 20:07:43,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:07:43,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:07:43,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1164 transitions. [2023-08-31 20:07:43,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6466666666666666 [2023-08-31 20:07:43,785 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1164 transitions. [2023-08-31 20:07:43,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1164 transitions. [2023-08-31 20:07:43,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:43,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1164 transitions. [2023-08-31 20:07:43,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 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 20:07:43,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 150.0) internal successors, (1950), 13 states have internal predecessors, (1950), 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 20:07:43,791 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 150.0) internal successors, (1950), 13 states have internal predecessors, (1950), 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 20:07:43,791 INFO L175 Difference]: Start difference. First operand has 72 places, 101 transitions, 450 flow. Second operand 12 states and 1164 transitions. [2023-08-31 20:07:43,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 107 transitions, 578 flow [2023-08-31 20:07:43,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 107 transitions, 578 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:07:43,797 INFO L231 Difference]: Finished difference. Result has 89 places, 107 transitions, 534 flow [2023-08-31 20:07:43,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=534, PETRI_PLACES=89, PETRI_TRANSITIONS=107} [2023-08-31 20:07:43,798 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 34 predicate places. [2023-08-31 20:07:43,798 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 107 transitions, 534 flow [2023-08-31 20:07:43,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 95.38461538461539) internal successors, (1240), 13 states have internal predecessors, (1240), 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 20:07:43,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:43,798 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:43,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-31 20:07:44,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:07:44,007 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-31 20:07:44,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:44,008 INFO L85 PathProgramCache]: Analyzing trace with hash -632470454, now seen corresponding path program 2 times [2023-08-31 20:07:44,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:44,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967639093] [2023-08-31 20:07:44,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:44,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:44,376 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:07:44,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:44,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967639093] [2023-08-31 20:07:44,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967639093] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:44,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:44,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:07:44,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191359571] [2023-08-31 20:07:44,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:44,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:07:44,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:44,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:07:44,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:07:44,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 150 [2023-08-31 20:07:44,601 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 107 transitions, 534 flow. Second operand has 6 states, 6 states have (on average 86.66666666666667) internal successors, (520), 6 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 20:07:44,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:44,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 150 [2023-08-31 20:07:44,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:44,769 INFO L130 PetriNetUnfolder]: 229/720 cut-off events. [2023-08-31 20:07:44,769 INFO L131 PetriNetUnfolder]: For 313/337 co-relation queries the response was YES. [2023-08-31 20:07:44,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1819 conditions, 720 events. 229/720 cut-off events. For 313/337 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3994 event pairs, 106 based on Foata normal form. 2/693 useless extension candidates. Maximal degree in co-relation 1739. Up to 314 conditions per place. [2023-08-31 20:07:44,775 INFO L137 encePairwiseOnDemand]: 144/150 looper letters, 73 selfloop transitions, 5 changer transitions 0/130 dead transitions. [2023-08-31 20:07:44,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 130 transitions, 760 flow [2023-08-31 20:07:44,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:07:44,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:07:44,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 557 transitions. [2023-08-31 20:07:44,778 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6188888888888889 [2023-08-31 20:07:44,778 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 557 transitions. [2023-08-31 20:07:44,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 557 transitions. [2023-08-31 20:07:44,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:44,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 557 transitions. [2023-08-31 20:07:44,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 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 20:07:44,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 20:07:44,784 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 20:07:44,784 INFO L175 Difference]: Start difference. First operand has 89 places, 107 transitions, 534 flow. Second operand 6 states and 557 transitions. [2023-08-31 20:07:44,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 130 transitions, 760 flow [2023-08-31 20:07:44,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 130 transitions, 712 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-31 20:07:44,790 INFO L231 Difference]: Finished difference. Result has 88 places, 106 transitions, 494 flow [2023-08-31 20:07:44,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=88, PETRI_TRANSITIONS=106} [2023-08-31 20:07:44,793 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 33 predicate places. [2023-08-31 20:07:44,793 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 106 transitions, 494 flow [2023-08-31 20:07:44,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.66666666666667) internal successors, (520), 6 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 20:07:44,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:44,794 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:44,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 20:07:44,794 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-31 20:07:44,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:44,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1318939415, now seen corresponding path program 1 times [2023-08-31 20:07:44,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:44,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859214225] [2023-08-31 20:07:44,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:44,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:45,117 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:07:45,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:45,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859214225] [2023-08-31 20:07:45,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859214225] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:45,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:45,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:07:45,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266890467] [2023-08-31 20:07:45,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:45,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:07:45,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:45,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:07:45,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:07:45,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 150 [2023-08-31 20:07:45,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 106 transitions, 494 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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 20:07:45,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:45,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 150 [2023-08-31 20:07:45,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:45,566 INFO L130 PetriNetUnfolder]: 493/1155 cut-off events. [2023-08-31 20:07:45,566 INFO L131 PetriNetUnfolder]: For 649/658 co-relation queries the response was YES. [2023-08-31 20:07:45,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3414 conditions, 1155 events. 493/1155 cut-off events. For 649/658 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 6145 event pairs, 193 based on Foata normal form. 28/1176 useless extension candidates. Maximal degree in co-relation 3358. Up to 791 conditions per place. [2023-08-31 20:07:45,573 INFO L137 encePairwiseOnDemand]: 134/150 looper letters, 140 selfloop transitions, 46 changer transitions 6/205 dead transitions. [2023-08-31 20:07:45,573 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 205 transitions, 1270 flow [2023-08-31 20:07:45,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:07:45,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:07:45,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 576 transitions. [2023-08-31 20:07:45,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.64 [2023-08-31 20:07:45,575 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 576 transitions. [2023-08-31 20:07:45,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 576 transitions. [2023-08-31 20:07:45,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:45,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 576 transitions. [2023-08-31 20:07:45,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.0) internal successors, (576), 6 states have internal predecessors, (576), 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 20:07:45,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 20:07:45,579 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 20:07:45,579 INFO L175 Difference]: Start difference. First operand has 88 places, 106 transitions, 494 flow. Second operand 6 states and 576 transitions. [2023-08-31 20:07:45,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 205 transitions, 1270 flow [2023-08-31 20:07:45,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 205 transitions, 1244 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 20:07:45,584 INFO L231 Difference]: Finished difference. Result has 92 places, 149 transitions, 907 flow [2023-08-31 20:07:45,584 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=907, PETRI_PLACES=92, PETRI_TRANSITIONS=149} [2023-08-31 20:07:45,585 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 37 predicate places. [2023-08-31 20:07:45,585 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 149 transitions, 907 flow [2023-08-31 20:07:45,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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 20:07:45,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:45,586 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:45,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 20:07:45,586 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-31 20:07:45,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:45,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1916402641, now seen corresponding path program 1 times [2023-08-31 20:07:45,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:45,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542387776] [2023-08-31 20:07:45,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:45,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:45,910 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:07:45,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:45,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542387776] [2023-08-31 20:07:45,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542387776] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:45,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:45,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:07:45,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773439011] [2023-08-31 20:07:45,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:45,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:07:45,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:45,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:07:45,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:07:46,131 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 150 [2023-08-31 20:07:46,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 149 transitions, 907 flow. Second operand has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 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 20:07:46,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:46,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 150 [2023-08-31 20:07:46,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:46,388 INFO L130 PetriNetUnfolder]: 603/1382 cut-off events. [2023-08-31 20:07:46,388 INFO L131 PetriNetUnfolder]: For 1964/1982 co-relation queries the response was YES. [2023-08-31 20:07:46,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4878 conditions, 1382 events. 603/1382 cut-off events. For 1964/1982 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 7585 event pairs, 204 based on Foata normal form. 26/1397 useless extension candidates. Maximal degree in co-relation 4818. Up to 905 conditions per place. [2023-08-31 20:07:46,398 INFO L137 encePairwiseOnDemand]: 133/150 looper letters, 144 selfloop transitions, 58 changer transitions 28/243 dead transitions. [2023-08-31 20:07:46,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 243 transitions, 1847 flow [2023-08-31 20:07:46,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:07:46,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:07:46,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 558 transitions. [2023-08-31 20:07:46,400 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.62 [2023-08-31 20:07:46,400 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 558 transitions. [2023-08-31 20:07:46,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 558 transitions. [2023-08-31 20:07:46,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:46,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 558 transitions. [2023-08-31 20:07:46,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.0) internal successors, (558), 6 states have internal predecessors, (558), 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 20:07:46,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 20:07:46,404 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 20:07:46,404 INFO L175 Difference]: Start difference. First operand has 92 places, 149 transitions, 907 flow. Second operand 6 states and 558 transitions. [2023-08-31 20:07:46,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 243 transitions, 1847 flow [2023-08-31 20:07:46,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 243 transitions, 1813 flow, removed 17 selfloop flow, removed 0 redundant places. [2023-08-31 20:07:46,416 INFO L231 Difference]: Finished difference. Result has 101 places, 181 transitions, 1302 flow [2023-08-31 20:07:46,417 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1302, PETRI_PLACES=101, PETRI_TRANSITIONS=181} [2023-08-31 20:07:46,417 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 46 predicate places. [2023-08-31 20:07:46,417 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 181 transitions, 1302 flow [2023-08-31 20:07:46,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 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 20:07:46,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:46,418 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:07:46,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 20:07:46,418 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-31 20:07:46,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:46,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1651890848, now seen corresponding path program 1 times [2023-08-31 20:07:46,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:46,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128873952] [2023-08-31 20:07:46,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:46,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:46,552 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:07:46,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:46,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128873952] [2023-08-31 20:07:46,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128873952] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:07:46,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:07:46,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 20:07:46,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629544782] [2023-08-31 20:07:46,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:07:46,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:07:46,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:46,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:07:46,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:07:46,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 150 [2023-08-31 20:07:46,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 181 transitions, 1302 flow. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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 20:07:46,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:46,565 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 150 [2023-08-31 20:07:46,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:46,612 INFO L130 PetriNetUnfolder]: 32/178 cut-off events. [2023-08-31 20:07:46,613 INFO L131 PetriNetUnfolder]: For 301/307 co-relation queries the response was YES. [2023-08-31 20:07:46,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 178 events. 32/178 cut-off events. For 301/307 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 508 event pairs, 17 based on Foata normal form. 16/191 useless extension candidates. Maximal degree in co-relation 493. Up to 70 conditions per place. [2023-08-31 20:07:46,614 INFO L137 encePairwiseOnDemand]: 146/150 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2023-08-31 20:07:46,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 61 transitions, 372 flow [2023-08-31 20:07:46,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:07:46,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:07:46,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2023-08-31 20:07:46,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6822222222222222 [2023-08-31 20:07:46,616 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2023-08-31 20:07:46,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2023-08-31 20:07:46,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:46,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2023-08-31 20:07:46,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 20:07:46,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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 20:07:46,618 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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 20:07:46,618 INFO L175 Difference]: Start difference. First operand has 101 places, 181 transitions, 1302 flow. Second operand 3 states and 307 transitions. [2023-08-31 20:07:46,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 61 transitions, 372 flow [2023-08-31 20:07:46,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 61 transitions, 242 flow, removed 27 selfloop flow, removed 28 redundant places. [2023-08-31 20:07:46,621 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2023-08-31 20:07:46,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2023-08-31 20:07:46,622 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 16 predicate places. [2023-08-31 20:07:46,622 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2023-08-31 20:07:46,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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 20:07:46,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2023-08-31 20:07:46,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-08-31 20:07:46,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-08-31 20:07:46,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-08-31 20:07:46,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-08-31 20:07:46,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-08-31 20:07:46,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-08-31 20:07:46,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-08-31 20:07:46,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-08-31 20:07:46,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 20:07:46,626 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2023-08-31 20:07:46,630 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 20:07:46,630 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 20:07:46,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 08:07:46 BasicIcfg [2023-08-31 20:07:46,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 20:07:46,633 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 20:07:46,634 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 20:07:46,634 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 20:07:46,634 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:07:38" (3/4) ... [2023-08-31 20:07:46,636 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 20:07:46,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 20:07:46,644 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-31 20:07:46,645 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-31 20:07:46,645 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 20:07:46,673 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 20:07:46,674 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 20:07:46,674 INFO L158 Benchmark]: Toolchain (without parser) took 8744.63ms. Allocated memory was 79.7MB in the beginning and 161.5MB in the end (delta: 81.8MB). Free memory was 56.2MB in the beginning and 90.9MB in the end (delta: -34.7MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2023-08-31 20:07:46,674 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:07:46,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.49ms. Allocated memory is still 79.7MB. Free memory was 56.2MB in the beginning and 57.0MB in the end (delta: -807.7kB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-08-31 20:07:46,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.74ms. Allocated memory is still 79.7MB. Free memory was 57.0MB in the beginning and 54.6MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:07:46,675 INFO L158 Benchmark]: Boogie Preprocessor took 28.76ms. Allocated memory is still 79.7MB. Free memory was 54.6MB in the beginning and 52.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:07:46,676 INFO L158 Benchmark]: RCFGBuilder took 505.65ms. Allocated memory is still 79.7MB. Free memory was 52.9MB in the beginning and 36.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-31 20:07:46,676 INFO L158 Benchmark]: TraceAbstraction took 7653.04ms. Allocated memory was 79.7MB in the beginning and 161.5MB in the end (delta: 81.8MB). Free memory was 35.4MB in the beginning and 94.1MB in the end (delta: -58.7MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2023-08-31 20:07:46,676 INFO L158 Benchmark]: Witness Printer took 40.30ms. Allocated memory is still 161.5MB. Free memory was 94.1MB in the beginning and 90.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 20:07:46,678 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 62.9MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.49ms. Allocated memory is still 79.7MB. Free memory was 56.2MB in the beginning and 57.0MB in the end (delta: -807.7kB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.74ms. Allocated memory is still 79.7MB. Free memory was 57.0MB in the beginning and 54.6MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.76ms. Allocated memory is still 79.7MB. Free memory was 54.6MB in the beginning and 52.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 505.65ms. Allocated memory is still 79.7MB. Free memory was 52.9MB in the beginning and 36.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7653.04ms. Allocated memory was 79.7MB in the beginning and 161.5MB in the end (delta: 81.8MB). Free memory was 35.4MB in the beginning and 94.1MB in the end (delta: -58.7MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Witness Printer took 40.30ms. Allocated memory is still 161.5MB. Free memory was 94.1MB in the beginning and 90.9MB 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: 1.3s, 102 PlacesBefore, 55 PlacesAfterwards, 100 TransitionsBefore, 52 TransitionsAfterwards, 2550 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 49 TotalNumberOfCompositions, 13239 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2533, independent: 2010, independent conditional: 0, independent unconditional: 2010, dependent: 523, dependent conditional: 0, dependent unconditional: 523, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1043, independent: 946, independent conditional: 0, independent unconditional: 946, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2533, independent: 1064, independent conditional: 0, independent unconditional: 1064, dependent: 426, dependent conditional: 0, dependent unconditional: 426, unknown: 1043, unknown conditional: 0, unknown unconditional: 1043] , Statistics on independence cache: Total cache size (in pairs): 202, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 65, Negative conditional cache size: 0, Negative unconditional cache size: 65, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: 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 3 procedures, 127 locations, 9 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: 7.5s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 903 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 517 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 394 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2464 IncrementalHoareTripleChecker+Invalid, 2858 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 394 mSolverCounterUnsat, 101 mSDtfsCounter, 2464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1302occurred in iteration=8, InterpolantAutomatonStates: 54, 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, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 886 SizeOfPredicates, 0 NumberOfNonLiveVariables, 233 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 240/273 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 20:07:46,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE