./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c 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 /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.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 fa644cc26c2bb4f900e6af52233648196eb4dff503d36a50559ddcf2a4270ffb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:30:06,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:30:06,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:30:06,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:30:06,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:30:06,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:30:06,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:30:06,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:30:06,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:30:06,239 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:30:06,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:30:06,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:30:06,243 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:30:06,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:30:06,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:30:06,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:30:06,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:30:06,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:30:06,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:30:06,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:30:06,257 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:30:06,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:30:06,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:30:06,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:30:06,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:30:06,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:30:06,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:30:06,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:30:06,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:30:06,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:30:06,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:30:06,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:30:06,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:30:06,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:30:06,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:30:06,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:30:06,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:30:06,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:30:06,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:30:06,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:30:06,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:30:06,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:30:06,278 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:30:06,304 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:30:06,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:30:06,305 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:30:06,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:30:06,306 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:30:06,306 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:30:06,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:30:06,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:30:06,307 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:30:06,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:30:06,308 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:30:06,308 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:30:06,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:30:06,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:30:06,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:30:06,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:30:06,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:30:06,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:30:06,310 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:30:06,310 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:30:06,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:30:06,311 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:30:06,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:30:06,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:30:06,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:30:06,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:30:06,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:30:06,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:30:06,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:30:06,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:30:06,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:30:06,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:30:06,313 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:30:06,314 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:30:06,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:30:06,314 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa644cc26c2bb4f900e6af52233648196eb4dff503d36a50559ddcf2a4270ffb [2022-04-18 16:30:06,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:30:06,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:30:06,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:30:06,583 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:30:06,583 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:30:06,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i [2022-04-18 16:30:06,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cf5adf9a/48fc900ff14b49499cde39b0037aaa7f/FLAG9439dc344 [2022-04-18 16:30:07,129 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:30:07,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i [2022-04-18 16:30:07,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cf5adf9a/48fc900ff14b49499cde39b0037aaa7f/FLAG9439dc344 [2022-04-18 16:30:07,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cf5adf9a/48fc900ff14b49499cde39b0037aaa7f [2022-04-18 16:30:07,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:30:07,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:30:07,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:30:07,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:30:07,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:30:07,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:30:07" (1/1) ... [2022-04-18 16:30:07,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a5b90b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:07, skipping insertion in model container [2022-04-18 16:30:07,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:30:07" (1/1) ... [2022-04-18 16:30:07,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:30:07,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:30:07,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i[55203,55216] [2022-04-18 16:30:08,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:30:08,023 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:30:08,059 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s2.i[55203,55216] [2022-04-18 16:30:08,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:30:08,118 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:30:08,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:08 WrapperNode [2022-04-18 16:30:08,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:30:08,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:30:08,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:30:08,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:30:08,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:08" (1/1) ... [2022-04-18 16:30:08,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:08" (1/1) ... [2022-04-18 16:30:08,169 INFO L137 Inliner]: procedures = 323, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2022-04-18 16:30:08,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:30:08,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:30:08,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:30:08,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:30:08,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:08" (1/1) ... [2022-04-18 16:30:08,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:08" (1/1) ... [2022-04-18 16:30:08,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:08" (1/1) ... [2022-04-18 16:30:08,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:08" (1/1) ... [2022-04-18 16:30:08,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:08" (1/1) ... [2022-04-18 16:30:08,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:08" (1/1) ... [2022-04-18 16:30:08,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:08" (1/1) ... [2022-04-18 16:30:08,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:30:08,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:30:08,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:30:08,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:30:08,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:08" (1/1) ... [2022-04-18 16:30:08,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:30:08,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:30:08,232 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) [2022-04-18 16:30:08,243 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 [2022-04-18 16:30:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:30:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:30:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-18 16:30:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:30:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:30:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:30:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:30:08,269 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:30:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:30:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:30:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:30:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:30:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:30:08,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:30:08,271 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:30:08,362 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:30:08,364 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:30:08,586 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:30:08,593 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:30:08,594 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-18 16:30:08,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:30:08 BoogieIcfgContainer [2022-04-18 16:30:08,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:30:08,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:30:08,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:30:08,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:30:08,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:30:07" (1/3) ... [2022-04-18 16:30:08,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3ef0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:30:08, skipping insertion in model container [2022-04-18 16:30:08,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:30:08" (2/3) ... [2022-04-18 16:30:08,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3ef0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:30:08, skipping insertion in model container [2022-04-18 16:30:08,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:30:08" (3/3) ... [2022-04-18 16:30:08,604 INFO L111 eAbstractionObserver]: Analyzing ICFG bigshot_s2.i [2022-04-18 16:30:08,610 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:30:08,611 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:30:08,612 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-04-18 16:30:08,612 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:30:08,688 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 16:30:08,729 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:30:08,735 INFO L340 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 [2022-04-18 16:30:08,736 INFO L341 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-04-18 16:30:08,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 110 transitions, 236 flow [2022-04-18 16:30:08,801 INFO L129 PetriNetUnfolder]: 4/108 cut-off events. [2022-04-18 16:30:08,801 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:30:08,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 108 events. 4/108 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-04-18 16:30:08,805 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 110 transitions, 236 flow [2022-04-18 16:30:08,810 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 89 transitions, 190 flow [2022-04-18 16:30:08,827 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2022-04-18 16:30:08,828 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:30:08,828 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:30:08,829 INFO L255 CegarLoopForPetriNet]: trace histogram [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] [2022-04-18 16:30:08,829 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-04-18 16:30:08,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:30:08,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1802542710, now seen corresponding path program 1 times [2022-04-18 16:30:08,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:30:08,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506419112] [2022-04-18 16:30:08,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:30:08,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:30:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:30:09,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:30:09,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:30:09,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506419112] [2022-04-18 16:30:09,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506419112] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:30:09,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:30:09,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:30:09,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915867670] [2022-04-18 16:30:09,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:30:09,114 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:30:09,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:30:09,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:30:09,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:30:09,150 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 110 [2022-04-18 16:30:09,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 89 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2022-04-18 16:30:09,157 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:30:09,157 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 110 [2022-04-18 16:30:09,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:30:09,229 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2022-04-18 16:30:09,229 INFO L130 PetriNetUnfolder]: For 8/14 co-relation queries the response was YES. [2022-04-18 16:30:09,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 87 events. 2/87 cut-off events. For 8/14 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 61. Up to 16 conditions per place. [2022-04-18 16:30:09,232 INFO L132 encePairwiseOnDemand]: 106/110 looper letters, 15 selfloop transitions, 2 changer transitions 0/87 dead transitions. [2022-04-18 16:30:09,232 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 87 transitions, 220 flow [2022-04-18 16:30:09,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:30:09,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:30:09,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2022-04-18 16:30:09,251 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2022-04-18 16:30:09,252 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2022-04-18 16:30:09,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2022-04-18 16:30:09,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:30:09,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2022-04-18 16:30:09,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2022-04-18 16:30:09,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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) [2022-04-18 16:30:09,278 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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) [2022-04-18 16:30:09,279 INFO L186 Difference]: Start difference. First operand has 93 places, 89 transitions, 190 flow. Second operand 3 states and 286 transitions. [2022-04-18 16:30:09,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 87 transitions, 220 flow [2022-04-18 16:30:09,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 87 transitions, 212 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:30:09,287 INFO L242 Difference]: Finished difference. Result has 90 places, 87 transitions, 182 flow [2022-04-18 16:30:09,289 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=90, PETRI_TRANSITIONS=87} [2022-04-18 16:30:09,295 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -3 predicate places. [2022-04-18 16:30:09,295 INFO L478 AbstractCegarLoop]: Abstraction has has 90 places, 87 transitions, 182 flow [2022-04-18 16:30:09,296 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2022-04-18 16:30:09,296 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:30:09,296 INFO L255 CegarLoopForPetriNet]: trace histogram [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] [2022-04-18 16:30:09,297 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:30:09,297 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-04-18 16:30:09,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:30:09,298 INFO L85 PathProgramCache]: Analyzing trace with hash 2093240328, now seen corresponding path program 1 times [2022-04-18 16:30:09,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:30:09,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131007010] [2022-04-18 16:30:09,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:30:09,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:30:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:30:09,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:30:09,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:30:09,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131007010] [2022-04-18 16:30:09,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131007010] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:30:09,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:30:09,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:30:09,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202419171] [2022-04-18 16:30:09,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:30:09,497 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:30:09,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:30:09,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:30:09,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:30:09,499 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 110 [2022-04-18 16:30:09,499 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 87 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 83.66666666666667) internal successors, (502), 6 states have internal predecessors, (502), 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) [2022-04-18 16:30:09,499 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:30:09,500 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 110 [2022-04-18 16:30:09,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:30:09,581 INFO L129 PetriNetUnfolder]: 2/86 cut-off events. [2022-04-18 16:30:09,581 INFO L130 PetriNetUnfolder]: For 1/7 co-relation queries the response was YES. [2022-04-18 16:30:09,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 86 events. 2/86 cut-off events. For 1/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 4/84 useless extension candidates. Maximal degree in co-relation 76. Up to 13 conditions per place. [2022-04-18 16:30:09,583 INFO L132 encePairwiseOnDemand]: 105/110 looper letters, 17 selfloop transitions, 4 changer transitions 0/86 dead transitions. [2022-04-18 16:30:09,583 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 86 transitions, 222 flow [2022-04-18 16:30:09,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:30:09,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:30:09,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 514 transitions. [2022-04-18 16:30:09,586 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7787878787878788 [2022-04-18 16:30:09,586 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 514 transitions. [2022-04-18 16:30:09,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 514 transitions. [2022-04-18 16:30:09,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:30:09,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 514 transitions. [2022-04-18 16:30:09,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.66666666666667) internal successors, (514), 6 states have internal predecessors, (514), 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) [2022-04-18 16:30:09,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 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) [2022-04-18 16:30:09,593 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 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) [2022-04-18 16:30:09,593 INFO L186 Difference]: Start difference. First operand has 90 places, 87 transitions, 182 flow. Second operand 6 states and 514 transitions. [2022-04-18 16:30:09,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 86 transitions, 222 flow [2022-04-18 16:30:09,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 86 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:30:09,596 INFO L242 Difference]: Finished difference. Result has 92 places, 86 transitions, 184 flow [2022-04-18 16:30:09,596 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=184, PETRI_PLACES=92, PETRI_TRANSITIONS=86} [2022-04-18 16:30:09,597 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -1 predicate places. [2022-04-18 16:30:09,597 INFO L478 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 184 flow [2022-04-18 16:30:09,597 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.66666666666667) internal successors, (502), 6 states have internal predecessors, (502), 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) [2022-04-18 16:30:09,597 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:30:09,598 INFO L255 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:30:09,598 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:30:09,598 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-04-18 16:30:09,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:30:09,599 INFO L85 PathProgramCache]: Analyzing trace with hash -754491597, now seen corresponding path program 1 times [2022-04-18 16:30:09,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:30:09,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305398635] [2022-04-18 16:30:09,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:30:09,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:30:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:30:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:30:09,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:30:09,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305398635] [2022-04-18 16:30:09,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305398635] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:30:09,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:30:09,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:30:09,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610420253] [2022-04-18 16:30:09,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:30:09,652 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:30:09,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:30:09,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:30:09,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:30:09,654 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 110 [2022-04-18 16:30:09,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 86 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2022-04-18 16:30:09,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:30:09,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 110 [2022-04-18 16:30:09,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:30:09,679 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2022-04-18 16:30:09,680 INFO L130 PetriNetUnfolder]: For 2/6 co-relation queries the response was YES. [2022-04-18 16:30:09,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 83 events. 2/83 cut-off events. For 2/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 68. Up to 7 conditions per place. [2022-04-18 16:30:09,681 INFO L132 encePairwiseOnDemand]: 106/110 looper letters, 11 selfloop transitions, 1 changer transitions 0/83 dead transitions. [2022-04-18 16:30:09,681 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 83 transitions, 202 flow [2022-04-18 16:30:09,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:30:09,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:30:09,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2022-04-18 16:30:09,683 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8727272727272727 [2022-04-18 16:30:09,683 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 288 transitions. [2022-04-18 16:30:09,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 288 transitions. [2022-04-18 16:30:09,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:30:09,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 288 transitions. [2022-04-18 16:30:09,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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) [2022-04-18 16:30:09,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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) [2022-04-18 16:30:09,685 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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) [2022-04-18 16:30:09,686 INFO L186 Difference]: Start difference. First operand has 92 places, 86 transitions, 184 flow. Second operand 3 states and 288 transitions. [2022-04-18 16:30:09,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 83 transitions, 202 flow [2022-04-18 16:30:09,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 83 transitions, 195 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:30:09,688 INFO L242 Difference]: Finished difference. Result has 87 places, 83 transitions, 173 flow [2022-04-18 16:30:09,688 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=87, PETRI_TRANSITIONS=83} [2022-04-18 16:30:09,689 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -6 predicate places. [2022-04-18 16:30:09,689 INFO L478 AbstractCegarLoop]: Abstraction has has 87 places, 83 transitions, 173 flow [2022-04-18 16:30:09,690 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2022-04-18 16:30:09,690 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:30:09,690 INFO L255 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:30:09,690 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:30:09,691 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-04-18 16:30:09,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:30:09,691 INFO L85 PathProgramCache]: Analyzing trace with hash -668254713, now seen corresponding path program 1 times [2022-04-18 16:30:09,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:30:09,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920892761] [2022-04-18 16:30:09,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:30:09,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:30:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:30:09,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:30:09,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:30:09,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920892761] [2022-04-18 16:30:09,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920892761] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:30:09,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:30:09,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:30:09,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810197382] [2022-04-18 16:30:09,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:30:09,825 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:30:09,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:30:09,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:30:09,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:30:09,827 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 110 [2022-04-18 16:30:09,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 83 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 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) [2022-04-18 16:30:09,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:30:09,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 110 [2022-04-18 16:30:09,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:30:09,891 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2022-04-18 16:30:09,891 INFO L130 PetriNetUnfolder]: For 1/6 co-relation queries the response was YES. [2022-04-18 16:30:09,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 82 events. 2/82 cut-off events. For 1/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 60 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 70. Up to 13 conditions per place. [2022-04-18 16:30:09,892 INFO L132 encePairwiseOnDemand]: 105/110 looper letters, 16 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2022-04-18 16:30:09,892 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 82 transitions, 211 flow [2022-04-18 16:30:09,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:30:09,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:30:09,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 513 transitions. [2022-04-18 16:30:09,894 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7772727272727272 [2022-04-18 16:30:09,894 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 513 transitions. [2022-04-18 16:30:09,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 513 transitions. [2022-04-18 16:30:09,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:30:09,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 513 transitions. [2022-04-18 16:30:09,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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) [2022-04-18 16:30:09,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 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) [2022-04-18 16:30:09,897 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 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) [2022-04-18 16:30:09,897 INFO L186 Difference]: Start difference. First operand has 87 places, 83 transitions, 173 flow. Second operand 6 states and 513 transitions. [2022-04-18 16:30:09,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 82 transitions, 211 flow [2022-04-18 16:30:09,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 82 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:30:09,916 INFO L242 Difference]: Finished difference. Result has 90 places, 82 transitions, 178 flow [2022-04-18 16:30:09,917 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=178, PETRI_PLACES=90, PETRI_TRANSITIONS=82} [2022-04-18 16:30:09,917 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -3 predicate places. [2022-04-18 16:30:09,918 INFO L478 AbstractCegarLoop]: Abstraction has has 90 places, 82 transitions, 178 flow [2022-04-18 16:30:09,918 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 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) [2022-04-18 16:30:09,918 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:30:09,918 INFO L255 CegarLoopForPetriNet]: trace histogram [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, 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] [2022-04-18 16:30:09,918 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:30:09,919 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-04-18 16:30:09,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:30:09,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1991424984, now seen corresponding path program 1 times [2022-04-18 16:30:09,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:30:09,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572156041] [2022-04-18 16:30:09,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:30:09,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:30:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:30:09,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:30:09,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:30:09,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572156041] [2022-04-18 16:30:09,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572156041] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:30:09,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:30:09,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:30:09,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830389975] [2022-04-18 16:30:09,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:30:09,983 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:30:09,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:30:09,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:30:09,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:30:09,984 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 110 [2022-04-18 16:30:09,985 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 82 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2022-04-18 16:30:09,985 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:30:09,985 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 110 [2022-04-18 16:30:09,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:30:10,017 INFO L129 PetriNetUnfolder]: 1/81 cut-off events. [2022-04-18 16:30:10,017 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:30:10,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 81 events. 1/81 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 33 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 82. Up to 9 conditions per place. [2022-04-18 16:30:10,018 INFO L132 encePairwiseOnDemand]: 106/110 looper letters, 10 selfloop transitions, 3 changer transitions 0/81 dead transitions. [2022-04-18 16:30:10,018 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 81 transitions, 202 flow [2022-04-18 16:30:10,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:30:10,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:30:10,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 474 transitions. [2022-04-18 16:30:10,020 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8618181818181818 [2022-04-18 16:30:10,020 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 474 transitions. [2022-04-18 16:30:10,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 474 transitions. [2022-04-18 16:30:10,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:30:10,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 474 transitions. [2022-04-18 16:30:10,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 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) [2022-04-18 16:30:10,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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) [2022-04-18 16:30:10,023 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 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) [2022-04-18 16:30:10,023 INFO L186 Difference]: Start difference. First operand has 90 places, 82 transitions, 178 flow. Second operand 5 states and 474 transitions. [2022-04-18 16:30:10,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 81 transitions, 202 flow [2022-04-18 16:30:10,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 81 transitions, 195 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:30:10,025 INFO L242 Difference]: Finished difference. Result has 90 places, 81 transitions, 175 flow [2022-04-18 16:30:10,025 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=175, PETRI_PLACES=90, PETRI_TRANSITIONS=81} [2022-04-18 16:30:10,026 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -3 predicate places. [2022-04-18 16:30:10,026 INFO L478 AbstractCegarLoop]: Abstraction has has 90 places, 81 transitions, 175 flow [2022-04-18 16:30:10,027 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2022-04-18 16:30:10,027 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:30:10,027 INFO L255 CegarLoopForPetriNet]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:30:10,027 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:30:10,027 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-04-18 16:30:10,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:30:10,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1273226745, now seen corresponding path program 1 times [2022-04-18 16:30:10,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:30:10,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13949392] [2022-04-18 16:30:10,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:30:10,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:30:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:30:10,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:30:10,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:30:10,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13949392] [2022-04-18 16:30:10,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13949392] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:30:10,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:30:10,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:30:10,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559828431] [2022-04-18 16:30:10,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:30:10,106 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:30:10,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:30:10,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:30:10,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:30:10,107 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 110 [2022-04-18 16:30:10,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 81 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2022-04-18 16:30:10,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:30:10,108 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 110 [2022-04-18 16:30:10,108 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:30:10,143 INFO L129 PetriNetUnfolder]: 17/134 cut-off events. [2022-04-18 16:30:10,143 INFO L130 PetriNetUnfolder]: For 7/15 co-relation queries the response was YES. [2022-04-18 16:30:10,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 134 events. 17/134 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 263 event pairs, 15 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 128. Up to 50 conditions per place. [2022-04-18 16:30:10,145 INFO L132 encePairwiseOnDemand]: 108/110 looper letters, 0 selfloop transitions, 0 changer transitions 80/80 dead transitions. [2022-04-18 16:30:10,145 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 80 transitions, 213 flow [2022-04-18 16:30:10,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:30:10,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:30:10,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2022-04-18 16:30:10,146 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8090909090909091 [2022-04-18 16:30:10,146 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2022-04-18 16:30:10,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2022-04-18 16:30:10,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:30:10,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2022-04-18 16:30:10,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2022-04-18 16:30:10,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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) [2022-04-18 16:30:10,149 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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) [2022-04-18 16:30:10,149 INFO L186 Difference]: Start difference. First operand has 90 places, 81 transitions, 175 flow. Second operand 3 states and 267 transitions. [2022-04-18 16:30:10,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 80 transitions, 213 flow [2022-04-18 16:30:10,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 80 transitions, 208 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-04-18 16:30:10,151 INFO L242 Difference]: Finished difference. Result has 88 places, 0 transitions, 0 flow [2022-04-18 16:30:10,151 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=88, PETRI_TRANSITIONS=0} [2022-04-18 16:30:10,153 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -5 predicate places. [2022-04-18 16:30:10,153 INFO L478 AbstractCegarLoop]: Abstraction has has 88 places, 0 transitions, 0 flow [2022-04-18 16:30:10,154 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2022-04-18 16:30:10,156 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2022-04-18 16:30:10,156 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2022-04-18 16:30:10,156 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2022-04-18 16:30:10,157 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2022-04-18 16:30:10,157 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2022-04-18 16:30:10,157 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2022-04-18 16:30:10,157 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2022-04-18 16:30:10,157 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-04-18 16:30:10,161 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2022-04-18 16:30:10,161 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2022-04-18 16:30:10,161 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2022-04-18 16:30:10,162 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2022-04-18 16:30:10,163 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:30:10,166 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-04-18 16:30:10,170 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:30:10,170 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:30:10,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:30:10 BasicIcfg [2022-04-18 16:30:10,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:30:10,175 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:30:10,175 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:30:10,175 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:30:10,175 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:30:08" (3/4) ... [2022-04-18 16:30:10,177 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:30:10,182 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:30:10,182 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:30:10,185 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-04-18 16:30:10,186 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-04-18 16:30:10,186 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:30:10,186 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:30:10,213 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:30:10,213 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:30:10,214 INFO L158 Benchmark]: Toolchain (without parser) took 2600.08ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 49.3MB in the beginning and 32.7MB in the end (delta: 16.6MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2022-04-18 16:30:10,214 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 86.0MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:30:10,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 503.92ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 49.1MB in the beginning and 58.3MB in the end (delta: -9.2MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2022-04-18 16:30:10,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.97ms. Allocated memory is still 104.9MB. Free memory was 58.3MB in the beginning and 55.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:30:10,215 INFO L158 Benchmark]: Boogie Preprocessor took 27.19ms. Allocated memory is still 104.9MB. Free memory was 55.7MB in the beginning and 53.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:30:10,215 INFO L158 Benchmark]: RCFGBuilder took 398.22ms. Allocated memory is still 104.9MB. Free memory was 53.6MB in the beginning and 40.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-04-18 16:30:10,216 INFO L158 Benchmark]: TraceAbstraction took 1576.77ms. Allocated memory is still 104.9MB. Free memory was 39.4MB in the beginning and 35.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-04-18 16:30:10,216 INFO L158 Benchmark]: Witness Printer took 38.61ms. Allocated memory is still 104.9MB. Free memory was 35.7MB in the beginning and 32.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:30:10,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 86.0MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 503.92ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 49.1MB in the beginning and 58.3MB in the end (delta: -9.2MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.97ms. Allocated memory is still 104.9MB. Free memory was 58.3MB in the beginning and 55.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.19ms. Allocated memory is still 104.9MB. Free memory was 55.7MB in the beginning and 53.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 398.22ms. Allocated memory is still 104.9MB. Free memory was 53.6MB in the beginning and 40.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1576.77ms. Allocated memory is still 104.9MB. Free memory was 39.4MB in the beginning and 35.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Witness Printer took 38.61ms. Allocated memory is still 104.9MB. Free memory was 35.7MB in the beginning and 32.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1123]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1125]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1126]: 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 5 procedures, 145 locations, 12 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: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 51 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=0, InterpolantAutomatonStates: 26, 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, 0.5s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 565 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:30:10,254 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