./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c --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/weaver/parallel-barrier.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:34:01,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:34:01,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:34:01,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:34:01,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:34:01,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:34:01,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:34:01,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:34:01,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:34:01,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:34:01,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:34:01,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:34:01,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:34:01,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:34:01,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:34:01,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:34:01,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:34:01,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:34:01,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:34:01,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:34:01,146 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:34:01,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:34:01,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:34:01,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:34:01,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:34:01,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:34:01,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:34:01,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:34:01,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:34:01,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:34:01,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:34:01,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:34:01,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:34:01,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:34:01,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:34:01,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:34:01,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:34:01,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:34:01,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:34:01,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:34:01,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:34:01,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:34:01,167 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:34:01,192 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:34:01,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:34:01,193 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:34:01,193 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:34:01,194 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:34:01,194 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:34:01,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:34:01,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:34:01,195 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:34:01,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:34:01,196 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:34:01,197 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:34:01,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:34:01,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:34:01,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:34:01,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:34:01,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:34:01,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:34:01,198 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:34:01,198 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:34:01,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:34:01,199 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:34:01,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:34:01,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:34:01,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:34:01,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:34:01,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:34:01,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:34:01,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:34:01,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:34:01,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:34:01,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:34:01,201 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:34:01,202 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:34:01,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:34:01,202 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 [2022-04-18 16:34:01,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:34:01,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:34:01,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:34:01,425 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:34:01,425 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:34:01,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2022-04-18 16:34:01,485 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b44984e/704da19fc4004d12bea3d4d619602620/FLAGb6d3c5686 [2022-04-18 16:34:01,865 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:34:01,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2022-04-18 16:34:01,872 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b44984e/704da19fc4004d12bea3d4d619602620/FLAGb6d3c5686 [2022-04-18 16:34:01,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b44984e/704da19fc4004d12bea3d4d619602620 [2022-04-18 16:34:01,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:34:01,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:34:01,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:34:01,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:34:01,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:34:01,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:34:01" (1/1) ... [2022-04-18 16:34:01,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@251d4a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:01, skipping insertion in model container [2022-04-18 16:34:01,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:34:01" (1/1) ... [2022-04-18 16:34:01,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:34:01,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:34:02,092 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c[4722,4735] [2022-04-18 16:34:02,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:34:02,099 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:34:02,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c[4722,4735] [2022-04-18 16:34:02,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:34:02,145 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:34:02,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:02 WrapperNode [2022-04-18 16:34:02,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:34:02,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:34:02,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:34:02,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:34:02,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:02" (1/1) ... [2022-04-18 16:34:02,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:02" (1/1) ... [2022-04-18 16:34:02,203 INFO L137 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 531 [2022-04-18 16:34:02,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:34:02,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:34:02,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:34:02,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:34:02,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:02" (1/1) ... [2022-04-18 16:34:02,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:02" (1/1) ... [2022-04-18 16:34:02,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:02" (1/1) ... [2022-04-18 16:34:02,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:02" (1/1) ... [2022-04-18 16:34:02,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:02" (1/1) ... [2022-04-18 16:34:02,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:02" (1/1) ... [2022-04-18 16:34:02,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:02" (1/1) ... [2022-04-18 16:34:02,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:34:02,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:34:02,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:34:02,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:34:02,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:02" (1/1) ... [2022-04-18 16:34:02,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:34:02,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:34:02,296 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 16:34:02,313 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 16:34:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:34:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:34:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:34:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:34:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:34:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:34:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:34:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:34:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:34:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:34:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-04-18 16:34:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-04-18 16:34:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:34:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-04-18 16:34:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-04-18 16:34:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-04-18 16:34:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-04-18 16:34:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:34:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:34:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:34:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:34:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:34:02,342 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 16:34:02,429 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:34:02,430 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:34:03,023 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:34:03,193 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:34:03,194 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 16:34:03,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:34:03 BoogieIcfgContainer [2022-04-18 16:34:03,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:34:03,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:34:03,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:34:03,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:34:03,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:34:01" (1/3) ... [2022-04-18 16:34:03,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae3a9a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:34:03, skipping insertion in model container [2022-04-18 16:34:03,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:34:02" (2/3) ... [2022-04-18 16:34:03,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae3a9a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:34:03, skipping insertion in model container [2022-04-18 16:34:03,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:34:03" (3/3) ... [2022-04-18 16:34:03,205 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2022-04-18 16:34:03,210 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:34:03,211 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:34:03,211 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-04-18 16:34:03,211 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:34:03,385 INFO L135 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-04-18 16:34:03,442 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:34:03,446 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 16:34:03,447 INFO L341 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2022-04-18 16:34:03,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 469 places, 464 transitions, 1000 flow [2022-04-18 16:34:03,588 INFO L129 PetriNetUnfolder]: 14/424 cut-off events. [2022-04-18 16:34:03,588 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 16:34:03,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 424 events. 14/424 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 760 event pairs, 0 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 355. Up to 3 conditions per place. [2022-04-18 16:34:03,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 469 places, 464 transitions, 1000 flow [2022-04-18 16:34:03,614 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 410 places, 403 transitions, 854 flow [2022-04-18 16:34:03,622 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2022-04-18 16:34:03,623 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:34:03,623 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:03,623 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] [2022-04-18 16:34:03,624 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 16:34:03,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:03,634 INFO L85 PathProgramCache]: Analyzing trace with hash -832118063, now seen corresponding path program 1 times [2022-04-18 16:34:03,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:03,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829434505] [2022-04-18 16:34:03,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:03,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:03,839 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 16:34:03,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:03,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829434505] [2022-04-18 16:34:03,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829434505] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:03,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:03,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:03,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50002096] [2022-04-18 16:34:03,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:03,853 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:03,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:03,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:03,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:03,889 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 468 [2022-04-18 16:34:03,896 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 403 transitions, 854 flow. Second operand has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 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 16:34:03,896 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:03,896 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 468 [2022-04-18 16:34:03,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:09,118 INFO L129 PetriNetUnfolder]: 11990/19790 cut-off events. [2022-04-18 16:34:09,119 INFO L130 PetriNetUnfolder]: For 5358/6129 co-relation queries the response was YES. [2022-04-18 16:34:09,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40866 conditions, 19790 events. 11990/19790 cut-off events. For 5358/6129 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 139454 event pairs, 10899 based on Foata normal form. 82/18247 useless extension candidates. Maximal degree in co-relation 40063. Up to 16543 conditions per place. [2022-04-18 16:34:09,422 INFO L132 encePairwiseOnDemand]: 418/468 looper letters, 52 selfloop transitions, 2 changer transitions 1/355 dead transitions. [2022-04-18 16:34:09,423 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 355 transitions, 866 flow [2022-04-18 16:34:09,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:09,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:09,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1170 transitions. [2022-04-18 16:34:09,438 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-04-18 16:34:09,438 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1170 transitions. [2022-04-18 16:34:09,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1170 transitions. [2022-04-18 16:34:09,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:09,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1170 transitions. [2022-04-18 16:34:09,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 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 16:34:09,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:09,455 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:09,457 INFO L186 Difference]: Start difference. First operand has 410 places, 403 transitions, 854 flow. Second operand 3 states and 1170 transitions. [2022-04-18 16:34:09,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 355 transitions, 866 flow [2022-04-18 16:34:09,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 355 transitions, 834 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-04-18 16:34:09,537 INFO L242 Difference]: Finished difference. Result has 355 places, 354 transitions, 728 flow [2022-04-18 16:34:09,539 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=728, PETRI_PLACES=355, PETRI_TRANSITIONS=354} [2022-04-18 16:34:09,542 INFO L335 CegarLoopForPetriNet]: 410 programPoint places, -55 predicate places. [2022-04-18 16:34:09,542 INFO L478 AbstractCegarLoop]: Abstraction has has 355 places, 354 transitions, 728 flow [2022-04-18 16:34:09,543 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 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 16:34:09,544 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:09,544 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] [2022-04-18 16:34:09,544 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:34:09,544 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 16:34:09,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:09,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1104946772, now seen corresponding path program 1 times [2022-04-18 16:34:09,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:09,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458922553] [2022-04-18 16:34:09,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:09,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:09,594 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 16:34:09,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:09,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458922553] [2022-04-18 16:34:09,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458922553] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:09,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:09,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:09,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343676955] [2022-04-18 16:34:09,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:09,602 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:09,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:09,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:09,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:09,605 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 468 [2022-04-18 16:34:09,606 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 354 transitions, 728 flow. Second operand has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 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 16:34:09,606 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:09,607 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 468 [2022-04-18 16:34:09,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:12,536 INFO L129 PetriNetUnfolder]: 11990/19779 cut-off events. [2022-04-18 16:34:12,536 INFO L130 PetriNetUnfolder]: For 1146/1888 co-relation queries the response was YES. [2022-04-18 16:34:12,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37477 conditions, 19779 events. 11990/19779 cut-off events. For 1146/1888 co-relation queries the response was YES. Maximal size of possible extension queue 762. Compared 139814 event pairs, 10899 based on Foata normal form. 0/18168 useless extension candidates. Maximal degree in co-relation 37437. Up to 16543 conditions per place. [2022-04-18 16:34:12,777 INFO L132 encePairwiseOnDemand]: 465/468 looper letters, 52 selfloop transitions, 2 changer transitions 0/353 dead transitions. [2022-04-18 16:34:12,777 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 353 transitions, 834 flow [2022-04-18 16:34:12,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:12,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1123 transitions. [2022-04-18 16:34:12,781 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7998575498575499 [2022-04-18 16:34:12,781 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1123 transitions. [2022-04-18 16:34:12,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1123 transitions. [2022-04-18 16:34:12,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:12,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1123 transitions. [2022-04-18 16:34:12,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 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 16:34:12,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:12,788 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:12,788 INFO L186 Difference]: Start difference. First operand has 355 places, 354 transitions, 728 flow. Second operand 3 states and 1123 transitions. [2022-04-18 16:34:12,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 353 transitions, 834 flow [2022-04-18 16:34:12,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 353 transitions, 830 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:12,797 INFO L242 Difference]: Finished difference. Result has 353 places, 353 transitions, 726 flow [2022-04-18 16:34:12,798 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=726, PETRI_PLACES=353, PETRI_TRANSITIONS=353} [2022-04-18 16:34:12,799 INFO L335 CegarLoopForPetriNet]: 410 programPoint places, -57 predicate places. [2022-04-18 16:34:12,799 INFO L478 AbstractCegarLoop]: Abstraction has has 353 places, 353 transitions, 726 flow [2022-04-18 16:34:12,800 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 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 16:34:12,800 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:12,800 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] [2022-04-18 16:34:12,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:34:12,801 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 16:34:12,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:12,802 INFO L85 PathProgramCache]: Analyzing trace with hash -925756875, now seen corresponding path program 1 times [2022-04-18 16:34:12,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:12,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055583764] [2022-04-18 16:34:12,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:12,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:12,844 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 16:34:12,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:12,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055583764] [2022-04-18 16:34:12,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055583764] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:12,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:12,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:12,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076274633] [2022-04-18 16:34:12,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:12,847 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:12,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:12,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:12,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:12,849 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 468 [2022-04-18 16:34:12,850 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 353 transitions, 726 flow. Second operand has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 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 16:34:12,850 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:12,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 468 [2022-04-18 16:34:12,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:15,580 INFO L129 PetriNetUnfolder]: 12058/19954 cut-off events. [2022-04-18 16:34:15,581 INFO L130 PetriNetUnfolder]: For 1146/1950 co-relation queries the response was YES. [2022-04-18 16:34:15,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37776 conditions, 19954 events. 12058/19954 cut-off events. For 1146/1950 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 140928 event pairs, 10899 based on Foata normal form. 0/18239 useless extension candidates. Maximal degree in co-relation 37729. Up to 16602 conditions per place. [2022-04-18 16:34:15,812 INFO L132 encePairwiseOnDemand]: 465/468 looper letters, 46 selfloop transitions, 2 changer transitions 0/352 dead transitions. [2022-04-18 16:34:15,813 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 352 transitions, 820 flow [2022-04-18 16:34:15,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:15,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:15,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1135 transitions. [2022-04-18 16:34:15,816 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8084045584045584 [2022-04-18 16:34:15,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1135 transitions. [2022-04-18 16:34:15,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1135 transitions. [2022-04-18 16:34:15,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:15,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1135 transitions. [2022-04-18 16:34:15,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.3333333333333) internal successors, (1135), 3 states have internal predecessors, (1135), 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 16:34:15,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:15,823 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:15,823 INFO L186 Difference]: Start difference. First operand has 353 places, 353 transitions, 726 flow. Second operand 3 states and 1135 transitions. [2022-04-18 16:34:15,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 352 transitions, 820 flow [2022-04-18 16:34:15,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 352 transitions, 816 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:15,829 INFO L242 Difference]: Finished difference. Result has 352 places, 352 transitions, 724 flow [2022-04-18 16:34:15,829 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=724, PETRI_PLACES=352, PETRI_TRANSITIONS=352} [2022-04-18 16:34:15,830 INFO L335 CegarLoopForPetriNet]: 410 programPoint places, -58 predicate places. [2022-04-18 16:34:15,830 INFO L478 AbstractCegarLoop]: Abstraction has has 352 places, 352 transitions, 724 flow [2022-04-18 16:34:15,831 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 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 16:34:15,831 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:15,832 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] [2022-04-18 16:34:15,832 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:34:15,832 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 16:34:15,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:15,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1992121066, now seen corresponding path program 1 times [2022-04-18 16:34:15,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:15,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568274798] [2022-04-18 16:34:15,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:15,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:15,867 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 16:34:15,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:15,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568274798] [2022-04-18 16:34:15,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568274798] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:15,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:15,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:15,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715944332] [2022-04-18 16:34:15,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:15,869 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:15,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:15,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:15,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:15,871 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 468 [2022-04-18 16:34:15,872 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 352 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 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 16:34:15,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:15,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 468 [2022-04-18 16:34:15,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:18,579 INFO L129 PetriNetUnfolder]: 12055/19932 cut-off events. [2022-04-18 16:34:18,579 INFO L130 PetriNetUnfolder]: For 1146/1950 co-relation queries the response was YES. [2022-04-18 16:34:18,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37754 conditions, 19932 events. 12055/19932 cut-off events. For 1146/1950 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 141258 event pairs, 10899 based on Foata normal form. 0/18225 useless extension candidates. Maximal degree in co-relation 37701. Up to 16602 conditions per place. [2022-04-18 16:34:18,789 INFO L132 encePairwiseOnDemand]: 465/468 looper letters, 46 selfloop transitions, 2 changer transitions 0/351 dead transitions. [2022-04-18 16:34:18,792 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 351 transitions, 818 flow [2022-04-18 16:34:18,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:18,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:18,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1135 transitions. [2022-04-18 16:34:18,795 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8084045584045584 [2022-04-18 16:34:18,795 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1135 transitions. [2022-04-18 16:34:18,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1135 transitions. [2022-04-18 16:34:18,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:18,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1135 transitions. [2022-04-18 16:34:18,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.3333333333333) internal successors, (1135), 3 states have internal predecessors, (1135), 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 16:34:18,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:18,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:18,803 INFO L186 Difference]: Start difference. First operand has 352 places, 352 transitions, 724 flow. Second operand 3 states and 1135 transitions. [2022-04-18 16:34:18,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 351 transitions, 818 flow [2022-04-18 16:34:18,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 351 transitions, 814 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:18,808 INFO L242 Difference]: Finished difference. Result has 351 places, 351 transitions, 722 flow [2022-04-18 16:34:18,809 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=351, PETRI_TRANSITIONS=351} [2022-04-18 16:34:18,810 INFO L335 CegarLoopForPetriNet]: 410 programPoint places, -59 predicate places. [2022-04-18 16:34:18,811 INFO L478 AbstractCegarLoop]: Abstraction has has 351 places, 351 transitions, 722 flow [2022-04-18 16:34:18,812 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 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 16:34:18,812 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:18,812 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] [2022-04-18 16:34:18,812 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:34:18,812 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 16:34:18,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:18,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1888493310, now seen corresponding path program 1 times [2022-04-18 16:34:18,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:18,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319168202] [2022-04-18 16:34:18,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:18,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:18,887 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 16:34:18,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:18,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319168202] [2022-04-18 16:34:18,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319168202] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:18,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:18,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:18,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880344204] [2022-04-18 16:34:18,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:18,890 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:18,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:18,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:18,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:18,893 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 468 [2022-04-18 16:34:18,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 351 transitions, 722 flow. Second operand has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 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 16:34:18,895 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:18,895 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 468 [2022-04-18 16:34:18,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:21,371 INFO L129 PetriNetUnfolder]: 11625/19107 cut-off events. [2022-04-18 16:34:21,371 INFO L130 PetriNetUnfolder]: For 1122/1822 co-relation queries the response was YES. [2022-04-18 16:34:21,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36211 conditions, 19107 events. 11625/19107 cut-off events. For 1122/1822 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 134602 event pairs, 10560 based on Foata normal form. 0/17581 useless extension candidates. Maximal degree in co-relation 36152. Up to 15976 conditions per place. [2022-04-18 16:34:21,564 INFO L132 encePairwiseOnDemand]: 465/468 looper letters, 43 selfloop transitions, 2 changer transitions 0/350 dead transitions. [2022-04-18 16:34:21,564 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 350 transitions, 810 flow [2022-04-18 16:34:21,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:21,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:21,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1141 transitions. [2022-04-18 16:34:21,567 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8126780626780626 [2022-04-18 16:34:21,567 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1141 transitions. [2022-04-18 16:34:21,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1141 transitions. [2022-04-18 16:34:21,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:21,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1141 transitions. [2022-04-18 16:34:21,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 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 16:34:21,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:21,574 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:21,574 INFO L186 Difference]: Start difference. First operand has 351 places, 351 transitions, 722 flow. Second operand 3 states and 1141 transitions. [2022-04-18 16:34:21,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 350 transitions, 810 flow [2022-04-18 16:34:21,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 350 transitions, 806 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:21,580 INFO L242 Difference]: Finished difference. Result has 350 places, 350 transitions, 720 flow [2022-04-18 16:34:21,581 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=720, PETRI_PLACES=350, PETRI_TRANSITIONS=350} [2022-04-18 16:34:21,582 INFO L335 CegarLoopForPetriNet]: 410 programPoint places, -60 predicate places. [2022-04-18 16:34:21,582 INFO L478 AbstractCegarLoop]: Abstraction has has 350 places, 350 transitions, 720 flow [2022-04-18 16:34:21,583 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 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 16:34:21,583 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:21,583 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 16:34:21,583 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:34:21,583 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 16:34:21,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:21,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1236054377, now seen corresponding path program 1 times [2022-04-18 16:34:21,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:21,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306094785] [2022-04-18 16:34:21,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:21,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:21,615 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 16:34:21,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:21,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306094785] [2022-04-18 16:34:21,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306094785] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:21,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:21,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:21,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834344571] [2022-04-18 16:34:21,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:21,617 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:21,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:21,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:21,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:21,619 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 468 [2022-04-18 16:34:21,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 350 transitions, 720 flow. Second operand has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 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 16:34:21,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:21,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 468 [2022-04-18 16:34:21,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:24,140 INFO L129 PetriNetUnfolder]: 11625/19106 cut-off events. [2022-04-18 16:34:24,140 INFO L130 PetriNetUnfolder]: For 1122/1822 co-relation queries the response was YES. [2022-04-18 16:34:24,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36210 conditions, 19106 events. 11625/19106 cut-off events. For 1122/1822 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 134770 event pairs, 10560 based on Foata normal form. 0/17581 useless extension candidates. Maximal degree in co-relation 36144. Up to 15976 conditions per place. [2022-04-18 16:34:24,341 INFO L132 encePairwiseOnDemand]: 465/468 looper letters, 43 selfloop transitions, 2 changer transitions 0/349 dead transitions. [2022-04-18 16:34:24,342 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 349 transitions, 808 flow [2022-04-18 16:34:24,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:24,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:24,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1141 transitions. [2022-04-18 16:34:24,345 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8126780626780626 [2022-04-18 16:34:24,345 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1141 transitions. [2022-04-18 16:34:24,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1141 transitions. [2022-04-18 16:34:24,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:24,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1141 transitions. [2022-04-18 16:34:24,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 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 16:34:24,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:24,352 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:24,353 INFO L186 Difference]: Start difference. First operand has 350 places, 350 transitions, 720 flow. Second operand 3 states and 1141 transitions. [2022-04-18 16:34:24,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 349 transitions, 808 flow [2022-04-18 16:34:24,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 349 transitions, 804 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:24,359 INFO L242 Difference]: Finished difference. Result has 349 places, 349 transitions, 718 flow [2022-04-18 16:34:24,360 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=718, PETRI_PLACES=349, PETRI_TRANSITIONS=349} [2022-04-18 16:34:24,360 INFO L335 CegarLoopForPetriNet]: 410 programPoint places, -61 predicate places. [2022-04-18 16:34:24,360 INFO L478 AbstractCegarLoop]: Abstraction has has 349 places, 349 transitions, 718 flow [2022-04-18 16:34:24,361 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 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 16:34:24,361 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:24,362 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] [2022-04-18 16:34:24,362 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:34:24,362 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 16:34:24,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:24,363 INFO L85 PathProgramCache]: Analyzing trace with hash -425449538, now seen corresponding path program 1 times [2022-04-18 16:34:24,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:24,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418717601] [2022-04-18 16:34:24,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:24,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:24,393 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 16:34:24,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:24,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418717601] [2022-04-18 16:34:24,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418717601] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:24,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:24,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:24,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247550144] [2022-04-18 16:34:24,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:24,395 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:24,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:24,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:24,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:24,397 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 468 [2022-04-18 16:34:24,398 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 349 transitions, 718 flow. Second operand has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 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 16:34:24,398 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:24,398 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 468 [2022-04-18 16:34:24,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:27,030 INFO L129 PetriNetUnfolder]: 11988/19786 cut-off events. [2022-04-18 16:34:27,031 INFO L130 PetriNetUnfolder]: For 1149/1849 co-relation queries the response was YES. [2022-04-18 16:34:27,114 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37481 conditions, 19786 events. 11988/19786 cut-off events. For 1149/1849 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 140028 event pairs, 10899 based on Foata normal form. 0/18161 useless extension candidates. Maximal degree in co-relation 37408. Up to 16543 conditions per place. [2022-04-18 16:34:27,244 INFO L132 encePairwiseOnDemand]: 465/468 looper letters, 52 selfloop transitions, 2 changer transitions 0/348 dead transitions. [2022-04-18 16:34:27,244 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 348 transitions, 824 flow [2022-04-18 16:34:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:27,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:27,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1123 transitions. [2022-04-18 16:34:27,247 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7998575498575499 [2022-04-18 16:34:27,247 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1123 transitions. [2022-04-18 16:34:27,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1123 transitions. [2022-04-18 16:34:27,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:27,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1123 transitions. [2022-04-18 16:34:27,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 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 16:34:27,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:27,254 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:27,254 INFO L186 Difference]: Start difference. First operand has 349 places, 349 transitions, 718 flow. Second operand 3 states and 1123 transitions. [2022-04-18 16:34:27,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 348 transitions, 824 flow [2022-04-18 16:34:27,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 348 transitions, 820 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:27,260 INFO L242 Difference]: Finished difference. Result has 348 places, 348 transitions, 716 flow [2022-04-18 16:34:27,261 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=716, PETRI_PLACES=348, PETRI_TRANSITIONS=348} [2022-04-18 16:34:27,262 INFO L335 CegarLoopForPetriNet]: 410 programPoint places, -62 predicate places. [2022-04-18 16:34:27,262 INFO L478 AbstractCegarLoop]: Abstraction has has 348 places, 348 transitions, 716 flow [2022-04-18 16:34:27,262 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 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 16:34:27,263 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:27,263 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 16:34:27,263 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:34:27,263 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 16:34:27,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:27,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1045181753, now seen corresponding path program 1 times [2022-04-18 16:34:27,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:27,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527898289] [2022-04-18 16:34:27,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:27,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:27,296 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 16:34:27,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:27,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527898289] [2022-04-18 16:34:27,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527898289] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:27,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:27,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:27,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767455015] [2022-04-18 16:34:27,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:27,298 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:27,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:27,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:27,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:27,301 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 468 [2022-04-18 16:34:27,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 348 transitions, 716 flow. Second operand has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 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 16:34:27,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:27,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 468 [2022-04-18 16:34:27,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:29,917 INFO L129 PetriNetUnfolder]: 11625/19104 cut-off events. [2022-04-18 16:34:29,917 INFO L130 PetriNetUnfolder]: For 1122/1822 co-relation queries the response was YES. [2022-04-18 16:34:29,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36208 conditions, 19104 events. 11625/19104 cut-off events. For 1122/1822 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 134956 event pairs, 10560 based on Foata normal form. 0/17581 useless extension candidates. Maximal degree in co-relation 36128. Up to 15976 conditions per place. [2022-04-18 16:34:30,096 INFO L132 encePairwiseOnDemand]: 465/468 looper letters, 43 selfloop transitions, 2 changer transitions 0/347 dead transitions. [2022-04-18 16:34:30,097 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 347 transitions, 804 flow [2022-04-18 16:34:30,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:30,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:30,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1141 transitions. [2022-04-18 16:34:30,099 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8126780626780626 [2022-04-18 16:34:30,099 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1141 transitions. [2022-04-18 16:34:30,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1141 transitions. [2022-04-18 16:34:30,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:30,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1141 transitions. [2022-04-18 16:34:30,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 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 16:34:30,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:30,106 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:30,106 INFO L186 Difference]: Start difference. First operand has 348 places, 348 transitions, 716 flow. Second operand 3 states and 1141 transitions. [2022-04-18 16:34:30,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 347 transitions, 804 flow [2022-04-18 16:34:30,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 347 transitions, 800 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:30,112 INFO L242 Difference]: Finished difference. Result has 347 places, 347 transitions, 714 flow [2022-04-18 16:34:30,112 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=714, PETRI_PLACES=347, PETRI_TRANSITIONS=347} [2022-04-18 16:34:30,113 INFO L335 CegarLoopForPetriNet]: 410 programPoint places, -63 predicate places. [2022-04-18 16:34:30,113 INFO L478 AbstractCegarLoop]: Abstraction has has 347 places, 347 transitions, 714 flow [2022-04-18 16:34:30,114 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 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 16:34:30,114 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:30,114 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, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:30,114 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:34:30,115 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 16:34:30,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:30,115 INFO L85 PathProgramCache]: Analyzing trace with hash 71602200, now seen corresponding path program 1 times [2022-04-18 16:34:30,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:30,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895739050] [2022-04-18 16:34:30,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:30,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:30,145 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 16:34:30,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:30,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895739050] [2022-04-18 16:34:30,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895739050] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:30,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:30,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:30,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779718372] [2022-04-18 16:34:30,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:30,147 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:30,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:30,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:30,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:30,149 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 468 [2022-04-18 16:34:30,150 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 347 transitions, 714 flow. Second operand has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 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 16:34:30,150 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:30,150 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 468 [2022-04-18 16:34:30,151 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:32,931 INFO L129 PetriNetUnfolder]: 11988/19784 cut-off events. [2022-04-18 16:34:32,932 INFO L130 PetriNetUnfolder]: For 1149/1849 co-relation queries the response was YES. [2022-04-18 16:34:32,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37473 conditions, 19784 events. 11988/19784 cut-off events. For 1149/1849 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 140412 event pairs, 10899 based on Foata normal form. 0/18121 useless extension candidates. Maximal degree in co-relation 37386. Up to 16537 conditions per place. [2022-04-18 16:34:33,102 INFO L132 encePairwiseOnDemand]: 465/468 looper letters, 46 selfloop transitions, 2 changer transitions 0/346 dead transitions. [2022-04-18 16:34:33,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 346 transitions, 808 flow [2022-04-18 16:34:33,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:33,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:33,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1135 transitions. [2022-04-18 16:34:33,105 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8084045584045584 [2022-04-18 16:34:33,105 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1135 transitions. [2022-04-18 16:34:33,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1135 transitions. [2022-04-18 16:34:33,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:33,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1135 transitions. [2022-04-18 16:34:33,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.3333333333333) internal successors, (1135), 3 states have internal predecessors, (1135), 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 16:34:33,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:33,112 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 468.0) internal successors, (1872), 4 states have internal predecessors, (1872), 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 16:34:33,112 INFO L186 Difference]: Start difference. First operand has 347 places, 347 transitions, 714 flow. Second operand 3 states and 1135 transitions. [2022-04-18 16:34:33,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 346 transitions, 808 flow [2022-04-18 16:34:33,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 346 transitions, 804 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:33,118 INFO L242 Difference]: Finished difference. Result has 346 places, 346 transitions, 712 flow [2022-04-18 16:34:33,119 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=468, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=712, PETRI_PLACES=346, PETRI_TRANSITIONS=346} [2022-04-18 16:34:33,119 INFO L335 CegarLoopForPetriNet]: 410 programPoint places, -64 predicate places. [2022-04-18 16:34:33,120 INFO L478 AbstractCegarLoop]: Abstraction has has 346 places, 346 transitions, 712 flow [2022-04-18 16:34:33,120 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 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 16:34:33,120 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:33,121 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:33,121 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:34:33,121 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 16:34:33,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:33,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1262149669, now seen corresponding path program 1 times [2022-04-18 16:34:33,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:33,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891686761] [2022-04-18 16:34:33,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:33,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:33,151 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 16:34:33,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:33,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891686761] [2022-04-18 16:34:33,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891686761] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:33,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:33,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:33,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404139640] [2022-04-18 16:34:33,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:33,153 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:33,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:33,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:33,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:33,155 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 468 [2022-04-18 16:34:33,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 346 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 363.3333333333333) internal successors, (1090), 3 states have internal predecessors, (1090), 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 16:34:33,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:33,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 468 [2022-04-18 16:34:33,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand