./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-nzb-file-symm.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 b869eaba59e8dca8d7cb2d1135193e506b8377811cada7a7f67b6d0824dd2d3d --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:53:28,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:53:28,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:53:28,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:53:28,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:53:28,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:53:28,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:53:28,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:53:28,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:53:28,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:53:28,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:53:28,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:53:28,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:53:28,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:53:28,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:53:28,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:53:28,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:53:28,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:53:28,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:53:28,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:53:28,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:53:28,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:53:28,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:53:28,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:53:28,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:53:28,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:53:28,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:53:28,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:53:28,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:53:28,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:53:28,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:53:28,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:53:28,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:53:28,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:53:28,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:53:28,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:53:28,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:53:28,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:53:28,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:53:28,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:53:28,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:53:28,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:53:28,214 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:53:28,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:53:28,216 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:53:28,216 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:53:28,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:53:28,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:53:28,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:53:28,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:53:28,218 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:53:28,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:53:28,219 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:53:28,219 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:53:28,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:53:28,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:53:28,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:53:28,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:53:28,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:53:28,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:53:28,221 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:53:28,221 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:53:28,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:53:28,221 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:53:28,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:53:28,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:53:28,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:53:28,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:53:28,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:53:28,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:53:28,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:53:28,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:53:28,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:53:28,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:53:28,224 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:53:28,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:53:28,224 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:53:28,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:53:28,224 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:53:28,224 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b869eaba59e8dca8d7cb2d1135193e506b8377811cada7a7f67b6d0824dd2d3d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:53:28,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:53:28,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:53:28,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:53:28,547 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:53:28,548 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:53:28,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c [2023-08-29 18:53:29,638 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:53:29,838 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:53:29,839 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c [2023-08-29 18:53:29,844 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55d79245c/717bd8d43bf046abb5ef8168bbe16d5a/FLAGb871a5739 [2023-08-29 18:53:29,856 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55d79245c/717bd8d43bf046abb5ef8168bbe16d5a [2023-08-29 18:53:29,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:53:29,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:53:29,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:53:29,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:53:29,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:53:29,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:53:29" (1/1) ... [2023-08-29 18:53:29,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36df7ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:29, skipping insertion in model container [2023-08-29 18:53:29,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:53:29" (1/1) ... [2023-08-29 18:53:29,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:53:29,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:53:30,133 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c[4929,4942] [2023-08-29 18:53:30,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:53:30,164 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:53:30,237 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c[4929,4942] [2023-08-29 18:53:30,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:53:30,259 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:53:30,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:30 WrapperNode [2023-08-29 18:53:30,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:53:30,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:53:30,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:53:30,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:53:30,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:30" (1/1) ... [2023-08-29 18:53:30,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:30" (1/1) ... [2023-08-29 18:53:30,405 INFO L138 Inliner]: procedures = 25, calls = 55, calls flagged for inlining = 21, calls inlined = 29, statements flattened = 900 [2023-08-29 18:53:30,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:53:30,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:53:30,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:53:30,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:53:30,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:30" (1/1) ... [2023-08-29 18:53:30,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:30" (1/1) ... [2023-08-29 18:53:30,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:30" (1/1) ... [2023-08-29 18:53:30,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:30" (1/1) ... [2023-08-29 18:53:30,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:30" (1/1) ... [2023-08-29 18:53:30,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:30" (1/1) ... [2023-08-29 18:53:30,444 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:30" (1/1) ... [2023-08-29 18:53:30,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:30" (1/1) ... [2023-08-29 18:53:30,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:53:30,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:53:30,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:53:30,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:53:30,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:30" (1/1) ... [2023-08-29 18:53:30,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:53:30,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:53:30,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 18:53:30,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 18:53:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:53:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:53:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:53:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:53:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 18:53:30,549 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 18:53:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 18:53:30,549 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 18:53:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:53:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 18:53:30,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:53:30,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:53:30,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:53:30,551 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 18:53:30,704 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:53:30,706 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:53:31,724 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:53:31,742 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:53:31,742 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-29 18:53:31,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:53:31 BoogieIcfgContainer [2023-08-29 18:53:31,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:53:31,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:53:31,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:53:31,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:53:31,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:53:29" (1/3) ... [2023-08-29 18:53:31,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dee69b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:53:31, skipping insertion in model container [2023-08-29 18:53:31,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:30" (2/3) ... [2023-08-29 18:53:31,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dee69b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:53:31, skipping insertion in model container [2023-08-29 18:53:31,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:53:31" (3/3) ... [2023-08-29 18:53:31,754 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.c [2023-08-29 18:53:31,760 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:53:31,768 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:53:31,769 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 154 error locations. [2023-08-29 18:53:31,769 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:53:31,982 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 18:53:32,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1083 places, 1151 transitions, 2318 flow [2023-08-29 18:53:32,595 INFO L130 PetriNetUnfolder]: 75/1149 cut-off events. [2023-08-29 18:53:32,595 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 18:53:32,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 1149 events. 75/1149 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4088 event pairs, 0 based on Foata normal form. 0/920 useless extension candidates. Maximal degree in co-relation 885. Up to 2 conditions per place. [2023-08-29 18:53:32,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 1083 places, 1151 transitions, 2318 flow [2023-08-29 18:53:32,665 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1063 places, 1129 transitions, 2270 flow [2023-08-29 18:53:32,671 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:53:32,682 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1063 places, 1129 transitions, 2270 flow [2023-08-29 18:53:32,684 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1063 places, 1129 transitions, 2270 flow [2023-08-29 18:53:32,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1063 places, 1129 transitions, 2270 flow [2023-08-29 18:53:33,177 INFO L130 PetriNetUnfolder]: 73/1129 cut-off events. [2023-08-29 18:53:33,178 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 18:53:33,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1138 conditions, 1129 events. 73/1129 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3962 event pairs, 0 based on Foata normal form. 0/903 useless extension candidates. Maximal degree in co-relation 885. Up to 2 conditions per place. [2023-08-29 18:53:33,330 INFO L119 LiptonReduction]: Number of co-enabled transitions 403556 [2023-08-29 18:53:54,876 INFO L134 LiptonReduction]: Checked pairs total: 990545 [2023-08-29 18:53:54,876 INFO L136 LiptonReduction]: Total number of compositions: 1259 [2023-08-29 18:53:54,889 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:53:54,895 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5f118a84, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:53:54,895 INFO L358 AbstractCegarLoop]: Starting to check reachability of 288 error locations. [2023-08-29 18:53:54,896 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 18:53:54,896 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:53:54,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:53:54,897 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 18:53:54,898 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:53:54,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:53:54,901 INFO L85 PathProgramCache]: Analyzing trace with hash 4725, now seen corresponding path program 1 times [2023-08-29 18:53:54,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:53:54,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472372252] [2023-08-29 18:53:54,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:53:54,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:53:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:53:54,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:53:54,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:53:54,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472372252] [2023-08-29 18:53:54,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472372252] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:53:54,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:53:54,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 18:53:54,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354690529] [2023-08-29 18:53:54,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:53:54,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 18:53:54,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:53:55,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 18:53:55,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 18:53:55,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1121 out of 2410 [2023-08-29 18:53:55,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 329 transitions, 670 flow. Second operand has 2 states, 2 states have (on average 1121.5) internal successors, (2243), 2 states have internal predecessors, (2243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:55,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:53:55,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1121 of 2410 [2023-08-29 18:53:55,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:53:56,670 INFO L130 PetriNetUnfolder]: 9483/18581 cut-off events. [2023-08-29 18:53:56,670 INFO L131 PetriNetUnfolder]: For 179/314 co-relation queries the response was YES. [2023-08-29 18:53:56,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32919 conditions, 18581 events. 9483/18581 cut-off events. For 179/314 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 152201 event pairs, 6765 based on Foata normal form. 193/15851 useless extension candidates. Maximal degree in co-relation 32248. Up to 14190 conditions per place. [2023-08-29 18:53:56,781 INFO L137 encePairwiseOnDemand]: 2313/2410 looper letters, 132 selfloop transitions, 0 changer transitions 1/232 dead transitions. [2023-08-29 18:53:56,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 232 transitions, 742 flow [2023-08-29 18:53:56,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 18:53:56,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 18:53:56,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2472 transitions. [2023-08-29 18:53:56,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.512863070539419 [2023-08-29 18:53:56,803 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2472 transitions. [2023-08-29 18:53:56,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2472 transitions. [2023-08-29 18:53:56,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:53:56,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2472 transitions. [2023-08-29 18:53:56,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1236.0) internal successors, (2472), 2 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:56,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2410.0) internal successors, (7230), 3 states have internal predecessors, (7230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:56,834 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2410.0) internal successors, (7230), 3 states have internal predecessors, (7230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:56,835 INFO L175 Difference]: Start difference. First operand has 303 places, 329 transitions, 670 flow. Second operand 2 states and 2472 transitions. [2023-08-29 18:53:56,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 232 transitions, 742 flow [2023-08-29 18:53:56,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 232 transitions, 734 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 18:53:56,846 INFO L231 Difference]: Finished difference. Result has 206 places, 231 transitions, 465 flow [2023-08-29 18:53:56,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=465, PETRI_PLACES=206, PETRI_TRANSITIONS=231} [2023-08-29 18:53:56,852 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -97 predicate places. [2023-08-29 18:53:56,852 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 231 transitions, 465 flow [2023-08-29 18:53:56,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1121.5) internal successors, (2243), 2 states have internal predecessors, (2243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:56,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:53:56,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 18:53:56,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:53:56,856 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:53:56,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:53:56,866 INFO L85 PathProgramCache]: Analyzing trace with hash -720943156, now seen corresponding path program 1 times [2023-08-29 18:53:56,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:53:56,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489997885] [2023-08-29 18:53:56,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:53:56,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:53:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:53:57,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:53:57,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:53:57,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489997885] [2023-08-29 18:53:57,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489997885] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:53:57,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:53:57,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:53:57,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772985282] [2023-08-29 18:53:57,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:53:57,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:53:57,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:53:57,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:53:57,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:53:57,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1113 out of 2410 [2023-08-29 18:53:57,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 231 transitions, 465 flow. Second operand has 3 states, 3 states have (on average 1114.6666666666667) internal successors, (3344), 3 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:57,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:53:57,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1113 of 2410 [2023-08-29 18:53:57,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:53:58,625 INFO L130 PetriNetUnfolder]: 9483/18582 cut-off events. [2023-08-29 18:53:58,626 INFO L131 PetriNetUnfolder]: For 42/177 co-relation queries the response was YES. [2023-08-29 18:53:58,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32823 conditions, 18582 events. 9483/18582 cut-off events. For 42/177 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 152212 event pairs, 6765 based on Foata normal form. 0/15659 useless extension candidates. Maximal degree in co-relation 32820. Up to 14189 conditions per place. [2023-08-29 18:53:58,731 INFO L137 encePairwiseOnDemand]: 2405/2410 looper letters, 130 selfloop transitions, 4 changer transitions 0/233 dead transitions. [2023-08-29 18:53:58,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 233 transitions, 737 flow [2023-08-29 18:53:58,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:53:58,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:53:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3475 transitions. [2023-08-29 18:53:58,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4806362378976487 [2023-08-29 18:53:58,740 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3475 transitions. [2023-08-29 18:53:58,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3475 transitions. [2023-08-29 18:53:58,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:53:58,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3475 transitions. [2023-08-29 18:53:58,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1158.3333333333333) internal successors, (3475), 3 states have internal predecessors, (3475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:58,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:58,764 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:58,764 INFO L175 Difference]: Start difference. First operand has 206 places, 231 transitions, 465 flow. Second operand 3 states and 3475 transitions. [2023-08-29 18:53:58,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 233 transitions, 737 flow [2023-08-29 18:53:58,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 233 transitions, 737 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:53:58,769 INFO L231 Difference]: Finished difference. Result has 208 places, 233 transitions, 487 flow [2023-08-29 18:53:58,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=487, PETRI_PLACES=208, PETRI_TRANSITIONS=233} [2023-08-29 18:53:58,771 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -95 predicate places. [2023-08-29 18:53:58,771 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 233 transitions, 487 flow [2023-08-29 18:53:58,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1114.6666666666667) internal successors, (3344), 3 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:58,773 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:53:58,773 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:53:58,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:53:58,774 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:53:58,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:53:58,774 INFO L85 PathProgramCache]: Analyzing trace with hash 313359369, now seen corresponding path program 1 times [2023-08-29 18:53:58,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:53:58,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533920866] [2023-08-29 18:53:58,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:53:58,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:53:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:53:58,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:53:58,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:53:58,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533920866] [2023-08-29 18:53:58,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533920866] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:53:58,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:53:58,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:53:58,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294662787] [2023-08-29 18:53:58,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:53:58,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:53:58,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:53:58,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:53:58,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:53:58,842 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1096 out of 2410 [2023-08-29 18:53:58,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 233 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 1098.6666666666667) internal successors, (3296), 3 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:58,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:53:58,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1096 of 2410 [2023-08-29 18:53:58,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:54:00,252 INFO L130 PetriNetUnfolder]: 10050/19265 cut-off events. [2023-08-29 18:54:00,252 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-08-29 18:54:00,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34397 conditions, 19265 events. 10050/19265 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 155581 event pairs, 3416 based on Foata normal form. 0/16244 useless extension candidates. Maximal degree in co-relation 34392. Up to 15018 conditions per place. [2023-08-29 18:54:00,370 INFO L137 encePairwiseOnDemand]: 2396/2410 looper letters, 154 selfloop transitions, 6 changer transitions 0/248 dead transitions. [2023-08-29 18:54:00,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 248 transitions, 838 flow [2023-08-29 18:54:00,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:54:00,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:54:00,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3454 transitions. [2023-08-29 18:54:00,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.477731673582296 [2023-08-29 18:54:00,378 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3454 transitions. [2023-08-29 18:54:00,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3454 transitions. [2023-08-29 18:54:00,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:54:00,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3454 transitions. [2023-08-29 18:54:00,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1151.3333333333333) internal successors, (3454), 3 states have internal predecessors, (3454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:00,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:00,399 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:00,400 INFO L175 Difference]: Start difference. First operand has 208 places, 233 transitions, 487 flow. Second operand 3 states and 3454 transitions. [2023-08-29 18:54:00,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 248 transitions, 838 flow [2023-08-29 18:54:00,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 248 transitions, 834 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:54:00,405 INFO L231 Difference]: Finished difference. Result has 202 places, 231 transitions, 509 flow [2023-08-29 18:54:00,405 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=509, PETRI_PLACES=202, PETRI_TRANSITIONS=231} [2023-08-29 18:54:00,406 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -101 predicate places. [2023-08-29 18:54:00,406 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 231 transitions, 509 flow [2023-08-29 18:54:00,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1098.6666666666667) internal successors, (3296), 3 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:00,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:54:00,408 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:54:00,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:54:00,408 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:54:00,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:54:00,409 INFO L85 PathProgramCache]: Analyzing trace with hash 491857000, now seen corresponding path program 1 times [2023-08-29 18:54:00,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:54:00,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985491720] [2023-08-29 18:54:00,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:54:00,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:54:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:54:00,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:54:00,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:54:00,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985491720] [2023-08-29 18:54:00,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985491720] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:54:00,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:54:00,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:54:00,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285630632] [2023-08-29 18:54:00,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:54:00,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:54:00,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:54:00,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:54:00,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:54:00,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1096 out of 2410 [2023-08-29 18:54:00,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 231 transitions, 509 flow. Second operand has 3 states, 3 states have (on average 1099.3333333333333) internal successors, (3298), 3 states have internal predecessors, (3298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:00,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:54:00,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1096 of 2410 [2023-08-29 18:54:00,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:54:01,933 INFO L130 PetriNetUnfolder]: 10142/19384 cut-off events. [2023-08-29 18:54:01,934 INFO L131 PetriNetUnfolder]: For 289/339 co-relation queries the response was YES. [2023-08-29 18:54:01,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35263 conditions, 19384 events. 10142/19384 cut-off events. For 289/339 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 155218 event pairs, 3261 based on Foata normal form. 0/16209 useless extension candidates. Maximal degree in co-relation 35258. Up to 15087 conditions per place. [2023-08-29 18:54:02,059 INFO L137 encePairwiseOnDemand]: 2396/2410 looper letters, 161 selfloop transitions, 6 changer transitions 0/249 dead transitions. [2023-08-29 18:54:02,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 249 transitions, 887 flow [2023-08-29 18:54:02,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:54:02,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:54:02,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3457 transitions. [2023-08-29 18:54:02,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4781466113416321 [2023-08-29 18:54:02,070 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3457 transitions. [2023-08-29 18:54:02,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3457 transitions. [2023-08-29 18:54:02,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:54:02,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3457 transitions. [2023-08-29 18:54:02,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1152.3333333333333) internal successors, (3457), 3 states have internal predecessors, (3457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:02,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:02,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:02,094 INFO L175 Difference]: Start difference. First operand has 202 places, 231 transitions, 509 flow. Second operand 3 states and 3457 transitions. [2023-08-29 18:54:02,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 249 transitions, 887 flow [2023-08-29 18:54:02,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 249 transitions, 887 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:54:02,101 INFO L231 Difference]: Finished difference. Result has 197 places, 229 transitions, 535 flow [2023-08-29 18:54:02,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=197, PETRI_TRANSITIONS=229} [2023-08-29 18:54:02,103 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -106 predicate places. [2023-08-29 18:54:02,103 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 229 transitions, 535 flow [2023-08-29 18:54:02,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1099.3333333333333) internal successors, (3298), 3 states have internal predecessors, (3298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:02,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:54:02,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:54:02,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:54:02,105 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err53ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:54:02,105 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:54:02,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1454080913, now seen corresponding path program 1 times [2023-08-29 18:54:02,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:54:02,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935132360] [2023-08-29 18:54:02,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:54:02,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:54:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:54:02,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:54:02,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:54:02,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935132360] [2023-08-29 18:54:02,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935132360] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:54:02,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:54:02,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:54:02,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514741321] [2023-08-29 18:54:02,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:54:02,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:54:02,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:54:02,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:54:02,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:54:02,265 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1117 out of 2410 [2023-08-29 18:54:02,268 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 229 transitions, 535 flow. Second operand has 3 states, 3 states have (on average 1121.0) internal successors, (3363), 3 states have internal predecessors, (3363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:02,268 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:54:02,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1117 of 2410 [2023-08-29 18:54:02,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:54:04,534 INFO L130 PetriNetUnfolder]: 15398/31430 cut-off events. [2023-08-29 18:54:04,534 INFO L131 PetriNetUnfolder]: For 925/1094 co-relation queries the response was YES. [2023-08-29 18:54:04,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56140 conditions, 31430 events. 15398/31430 cut-off events. For 925/1094 co-relation queries the response was YES. Maximal size of possible extension queue 577. Compared 276044 event pairs, 6462 based on Foata normal form. 1/26705 useless extension candidates. Maximal degree in co-relation 56134. Up to 14282 conditions per place. [2023-08-29 18:54:04,707 INFO L137 encePairwiseOnDemand]: 2407/2410 looper letters, 242 selfloop transitions, 2 changer transitions 0/330 dead transitions. [2023-08-29 18:54:04,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 330 transitions, 1235 flow [2023-08-29 18:54:04,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:54:04,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:54:04,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3585 transitions. [2023-08-29 18:54:04,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.495850622406639 [2023-08-29 18:54:04,716 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3585 transitions. [2023-08-29 18:54:04,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3585 transitions. [2023-08-29 18:54:04,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:54:04,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3585 transitions. [2023-08-29 18:54:04,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1195.0) internal successors, (3585), 3 states have internal predecessors, (3585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:04,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:04,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:04,738 INFO L175 Difference]: Start difference. First operand has 197 places, 229 transitions, 535 flow. Second operand 3 states and 3585 transitions. [2023-08-29 18:54:04,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 330 transitions, 1235 flow [2023-08-29 18:54:04,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 330 transitions, 1235 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:54:04,746 INFO L231 Difference]: Finished difference. Result has 200 places, 230 transitions, 547 flow [2023-08-29 18:54:04,746 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=547, PETRI_PLACES=200, PETRI_TRANSITIONS=230} [2023-08-29 18:54:04,747 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -103 predicate places. [2023-08-29 18:54:04,747 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 230 transitions, 547 flow [2023-08-29 18:54:04,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1121.0) internal successors, (3363), 3 states have internal predecessors, (3363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:04,748 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:54:04,749 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:54:04,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:54:04,749 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:54:04,749 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:54:04,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1454083586, now seen corresponding path program 1 times [2023-08-29 18:54:04,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:54:04,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686616135] [2023-08-29 18:54:04,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:54:04,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:54:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:54:04,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:54:04,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:54:04,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686616135] [2023-08-29 18:54:04,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686616135] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:54:04,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:54:04,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:54:04,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457225153] [2023-08-29 18:54:04,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:54:04,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:54:04,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:54:04,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:54:04,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:54:04,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1096 out of 2410 [2023-08-29 18:54:04,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 230 transitions, 547 flow. Second operand has 3 states, 3 states have (on average 1100.3333333333333) internal successors, (3301), 3 states have internal predecessors, (3301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:04,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:54:04,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1096 of 2410 [2023-08-29 18:54:04,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:54:07,491 INFO L130 PetriNetUnfolder]: 18568/35180 cut-off events. [2023-08-29 18:54:07,491 INFO L131 PetriNetUnfolder]: For 1718/1887 co-relation queries the response was YES. [2023-08-29 18:54:07,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65633 conditions, 35180 events. 18568/35180 cut-off events. For 1718/1887 co-relation queries the response was YES. Maximal size of possible extension queue 696. Compared 293796 event pairs, 3632 based on Foata normal form. 1/30109 useless extension candidates. Maximal degree in co-relation 65625. Up to 22646 conditions per place. [2023-08-29 18:54:07,638 INFO L137 encePairwiseOnDemand]: 2397/2410 looper letters, 224 selfloop transitions, 5 changer transitions 0/304 dead transitions. [2023-08-29 18:54:07,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 304 transitions, 1176 flow [2023-08-29 18:54:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:54:07,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:54:07,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3513 transitions. [2023-08-29 18:54:07,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4858921161825726 [2023-08-29 18:54:07,647 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3513 transitions. [2023-08-29 18:54:07,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3513 transitions. [2023-08-29 18:54:07,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:54:07,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3513 transitions. [2023-08-29 18:54:07,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1171.0) internal successors, (3513), 3 states have internal predecessors, (3513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:07,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:07,666 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:07,666 INFO L175 Difference]: Start difference. First operand has 200 places, 230 transitions, 547 flow. Second operand 3 states and 3513 transitions. [2023-08-29 18:54:07,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 304 transitions, 1176 flow [2023-08-29 18:54:07,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 304 transitions, 1173 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:54:07,674 INFO L231 Difference]: Finished difference. Result has 194 places, 227 transitions, 564 flow [2023-08-29 18:54:07,674 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=564, PETRI_PLACES=194, PETRI_TRANSITIONS=227} [2023-08-29 18:54:07,675 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -109 predicate places. [2023-08-29 18:54:07,675 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 227 transitions, 564 flow [2023-08-29 18:54:07,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1100.3333333333333) internal successors, (3301), 3 states have internal predecessors, (3301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:07,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:54:07,677 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:54:07,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 18:54:07,677 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err56ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:54:07,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:54:07,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1454080854, now seen corresponding path program 1 times [2023-08-29 18:54:07,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:54:07,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700466689] [2023-08-29 18:54:07,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:54:07,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:54:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:54:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:54:07,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:54:07,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700466689] [2023-08-29 18:54:07,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700466689] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:54:07,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:54:07,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:54:07,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380897753] [2023-08-29 18:54:07,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:54:07,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:54:07,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:54:07,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:54:07,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:54:07,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1105 out of 2410 [2023-08-29 18:54:07,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 227 transitions, 564 flow. Second operand has 3 states, 3 states have (on average 1109.3333333333333) internal successors, (3328), 3 states have internal predecessors, (3328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:07,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:54:07,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1105 of 2410 [2023-08-29 18:54:07,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:54:10,206 INFO L130 PetriNetUnfolder]: 17599/33675 cut-off events. [2023-08-29 18:54:10,206 INFO L131 PetriNetUnfolder]: For 1876/2047 co-relation queries the response was YES. [2023-08-29 18:54:10,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63653 conditions, 33675 events. 17599/33675 cut-off events. For 1876/2047 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 283670 event pairs, 11954 based on Foata normal form. 3/29336 useless extension candidates. Maximal degree in co-relation 63645. Up to 25744 conditions per place. [2023-08-29 18:54:10,405 INFO L137 encePairwiseOnDemand]: 2406/2410 looper letters, 212 selfloop transitions, 3 changer transitions 0/293 dead transitions. [2023-08-29 18:54:10,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 293 transitions, 1150 flow [2023-08-29 18:54:10,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:54:10,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:54:10,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3512 transitions. [2023-08-29 18:54:10,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48575380359612724 [2023-08-29 18:54:10,414 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3512 transitions. [2023-08-29 18:54:10,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3512 transitions. [2023-08-29 18:54:10,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:54:10,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3512 transitions. [2023-08-29 18:54:10,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1170.6666666666667) internal successors, (3512), 3 states have internal predecessors, (3512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:10,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:10,433 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:10,434 INFO L175 Difference]: Start difference. First operand has 194 places, 227 transitions, 564 flow. Second operand 3 states and 3512 transitions. [2023-08-29 18:54:10,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 293 transitions, 1150 flow [2023-08-29 18:54:10,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 293 transitions, 1150 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:54:10,442 INFO L231 Difference]: Finished difference. Result has 195 places, 226 transitions, 568 flow [2023-08-29 18:54:10,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=568, PETRI_PLACES=195, PETRI_TRANSITIONS=226} [2023-08-29 18:54:10,443 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -108 predicate places. [2023-08-29 18:54:10,443 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 226 transitions, 568 flow [2023-08-29 18:54:10,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1109.3333333333333) internal successors, (3328), 3 states have internal predecessors, (3328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:10,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:54:10,445 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:54:10,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 18:54:10,445 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:54:10,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:54:10,446 INFO L85 PathProgramCache]: Analyzing trace with hash 574972573, now seen corresponding path program 1 times [2023-08-29 18:54:10,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:54:10,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946970333] [2023-08-29 18:54:10,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:54:10,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:54:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:54:10,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 18:54:10,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:54:10,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946970333] [2023-08-29 18:54:10,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946970333] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 18:54:10,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361764434] [2023-08-29 18:54:10,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:54:10,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:54:10,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:54:10,546 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 18:54:10,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 18:54:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:54:10,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-29 18:54:10,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 18:54:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 18:54:10,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 18:54:10,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 18:54:10,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361764434] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 18:54:10,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 18:54:10,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-08-29 18:54:10,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856551617] [2023-08-29 18:54:10,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 18:54:10,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 18:54:10,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:54:10,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 18:54:10,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-29 18:54:10,864 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1109 out of 2410 [2023-08-29 18:54:10,870 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 226 transitions, 568 flow. Second operand has 8 states, 8 states have (on average 1111.125) internal successors, (8889), 8 states have internal predecessors, (8889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:10,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:54:10,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1109 of 2410 [2023-08-29 18:54:10,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:54:13,521 INFO L130 PetriNetUnfolder]: 17601/33763 cut-off events. [2023-08-29 18:54:13,522 INFO L131 PetriNetUnfolder]: For 2253/2422 co-relation queries the response was YES. [2023-08-29 18:54:13,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64344 conditions, 33763 events. 17601/33763 cut-off events. For 2253/2422 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 284968 event pairs, 12311 based on Foata normal form. 0/29409 useless extension candidates. Maximal degree in co-relation 64335. Up to 26507 conditions per place. [2023-08-29 18:54:13,698 INFO L137 encePairwiseOnDemand]: 2405/2410 looper letters, 144 selfloop transitions, 10 changer transitions 0/232 dead transitions. [2023-08-29 18:54:13,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 232 transitions, 900 flow [2023-08-29 18:54:13,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:54:13,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:54:13,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6800 transitions. [2023-08-29 18:54:13,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4702627939142462 [2023-08-29 18:54:13,712 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6800 transitions. [2023-08-29 18:54:13,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6800 transitions. [2023-08-29 18:54:13,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:54:13,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6800 transitions. [2023-08-29 18:54:13,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1133.3333333333333) internal successors, (6800), 6 states have internal predecessors, (6800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:13,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2410.0) internal successors, (16870), 7 states have internal predecessors, (16870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:13,742 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2410.0) internal successors, (16870), 7 states have internal predecessors, (16870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:13,743 INFO L175 Difference]: Start difference. First operand has 195 places, 226 transitions, 568 flow. Second operand 6 states and 6800 transitions. [2023-08-29 18:54:13,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 232 transitions, 900 flow [2023-08-29 18:54:13,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 232 transitions, 894 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:54:13,766 INFO L231 Difference]: Finished difference. Result has 201 places, 232 transitions, 628 flow [2023-08-29 18:54:13,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=628, PETRI_PLACES=201, PETRI_TRANSITIONS=232} [2023-08-29 18:54:13,769 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -102 predicate places. [2023-08-29 18:54:13,769 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 232 transitions, 628 flow [2023-08-29 18:54:13,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1111.125) internal successors, (8889), 8 states have internal predecessors, (8889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:13,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:54:13,771 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:54:13,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 18:54:13,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:54:13,979 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:54:13,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:54:13,980 INFO L85 PathProgramCache]: Analyzing trace with hash 273113082, now seen corresponding path program 2 times [2023-08-29 18:54:13,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:54:13,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487359153] [2023-08-29 18:54:13,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:54:13,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:54:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:54:14,151 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 18:54:14,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:54:14,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487359153] [2023-08-29 18:54:14,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487359153] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 18:54:14,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458628256] [2023-08-29 18:54:14,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 18:54:14,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:54:14,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:54:14,157 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 18:54:14,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 18:54:14,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 18:54:14,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 18:54:14,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-29 18:54:14,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 18:54:14,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-29 18:54:14,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-29 18:54:14,420 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 18:54:14,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 18:54:14,457 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 18:54:14,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 18:54:14,479 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:54:14,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 18:54:14,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458628256] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:54:14,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 18:54:14,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2023-08-29 18:54:14,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922598512] [2023-08-29 18:54:14,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:54:14,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 18:54:14,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:54:14,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 18:54:14,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-29 18:54:14,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1110 out of 2410 [2023-08-29 18:54:14,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 232 transitions, 628 flow. Second operand has 7 states, 7 states have (on average 1111.857142857143) internal successors, (7783), 7 states have internal predecessors, (7783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:14,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:54:14,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1110 of 2410 [2023-08-29 18:54:14,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:54:22,288 INFO L130 PetriNetUnfolder]: 62009/93500 cut-off events. [2023-08-29 18:54:22,288 INFO L131 PetriNetUnfolder]: For 6850/6851 co-relation queries the response was YES. [2023-08-29 18:54:22,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191963 conditions, 93500 events. 62009/93500 cut-off events. For 6850/6851 co-relation queries the response was YES. Maximal size of possible extension queue 1456. Compared 700282 event pairs, 3970 based on Foata normal form. 0/82547 useless extension candidates. Maximal degree in co-relation 191951. Up to 31718 conditions per place. [2023-08-29 18:54:22,863 INFO L137 encePairwiseOnDemand]: 2404/2410 looper letters, 693 selfloop transitions, 5 changer transitions 0/771 dead transitions. [2023-08-29 18:54:22,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 771 transitions, 3394 flow [2023-08-29 18:54:22,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 18:54:22,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 18:54:22,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8391 transitions. [2023-08-29 18:54:22,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4973918197984588 [2023-08-29 18:54:22,876 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 8391 transitions. [2023-08-29 18:54:22,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8391 transitions. [2023-08-29 18:54:22,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:54:22,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 8391 transitions. [2023-08-29 18:54:22,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 1198.7142857142858) internal successors, (8391), 7 states have internal predecessors, (8391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:22,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 2410.0) internal successors, (19280), 8 states have internal predecessors, (19280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:22,901 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 2410.0) internal successors, (19280), 8 states have internal predecessors, (19280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:22,901 INFO L175 Difference]: Start difference. First operand has 201 places, 232 transitions, 628 flow. Second operand 7 states and 8391 transitions. [2023-08-29 18:54:22,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 771 transitions, 3394 flow [2023-08-29 18:54:22,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 771 transitions, 3378 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-29 18:54:22,915 INFO L231 Difference]: Finished difference. Result has 205 places, 231 transitions, 620 flow [2023-08-29 18:54:22,916 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=620, PETRI_PLACES=205, PETRI_TRANSITIONS=231} [2023-08-29 18:54:22,916 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -98 predicate places. [2023-08-29 18:54:22,916 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 231 transitions, 620 flow [2023-08-29 18:54:22,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1111.857142857143) internal successors, (7783), 7 states have internal predecessors, (7783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:22,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:54:22,918 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:54:22,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 18:54:23,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-08-29 18:54:23,125 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err63ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:54:23,126 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:54:23,126 INFO L85 PathProgramCache]: Analyzing trace with hash 527457553, now seen corresponding path program 1 times [2023-08-29 18:54:23,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:54:23,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202885018] [2023-08-29 18:54:23,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:54:23,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:54:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:54:23,167 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:54:23,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:54:23,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202885018] [2023-08-29 18:54:23,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202885018] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:54:23,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:54:23,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:54:23,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69257082] [2023-08-29 18:54:23,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:54:23,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:54:23,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:54:23,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:54:23,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:54:23,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1119 out of 2410 [2023-08-29 18:54:23,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 231 transitions, 620 flow. Second operand has 3 states, 3 states have (on average 1123.3333333333333) internal successors, (3370), 3 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:23,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:54:23,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1119 of 2410 [2023-08-29 18:54:23,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:54:26,394 INFO L130 PetriNetUnfolder]: 20524/39267 cut-off events. [2023-08-29 18:54:26,395 INFO L131 PetriNetUnfolder]: For 7116/7143 co-relation queries the response was YES. [2023-08-29 18:54:26,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79250 conditions, 39267 events. 20524/39267 cut-off events. For 7116/7143 co-relation queries the response was YES. Maximal size of possible extension queue 834. Compared 343019 event pairs, 12079 based on Foata normal form. 172/34153 useless extension candidates. Maximal degree in co-relation 79237. Up to 25569 conditions per place. [2023-08-29 18:54:26,607 INFO L137 encePairwiseOnDemand]: 2405/2410 looper letters, 233 selfloop transitions, 3 changer transitions 0/313 dead transitions. [2023-08-29 18:54:26,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 313 transitions, 1293 flow [2023-08-29 18:54:26,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:54:26,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:54:26,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3568 transitions. [2023-08-29 18:54:26,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4934993084370678 [2023-08-29 18:54:26,612 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3568 transitions. [2023-08-29 18:54:26,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3568 transitions. [2023-08-29 18:54:26,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:54:26,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3568 transitions. [2023-08-29 18:54:26,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1189.3333333333333) internal successors, (3568), 3 states have internal predecessors, (3568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:26,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:26,623 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:26,623 INFO L175 Difference]: Start difference. First operand has 205 places, 231 transitions, 620 flow. Second operand 3 states and 3568 transitions. [2023-08-29 18:54:26,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 313 transitions, 1293 flow [2023-08-29 18:54:26,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 313 transitions, 1282 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:54:26,642 INFO L231 Difference]: Finished difference. Result has 204 places, 233 transitions, 637 flow [2023-08-29 18:54:26,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=637, PETRI_PLACES=204, PETRI_TRANSITIONS=233} [2023-08-29 18:54:26,642 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -99 predicate places. [2023-08-29 18:54:26,643 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 233 transitions, 637 flow [2023-08-29 18:54:26,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1123.3333333333333) internal successors, (3370), 3 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:26,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:54:26,644 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:54:26,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 18:54:26,644 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err65ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:54:26,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:54:26,645 INFO L85 PathProgramCache]: Analyzing trace with hash 2134504388, now seen corresponding path program 1 times [2023-08-29 18:54:26,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:54:26,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599206609] [2023-08-29 18:54:26,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:54:26,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:54:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:54:26,683 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:54:26,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:54:26,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599206609] [2023-08-29 18:54:26,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599206609] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:54:26,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:54:26,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:54:26,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016064015] [2023-08-29 18:54:26,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:54:26,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:54:26,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:54:26,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:54:26,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:54:26,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1114 out of 2410 [2023-08-29 18:54:26,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 233 transitions, 637 flow. Second operand has 3 states, 3 states have (on average 1118.3333333333333) internal successors, (3355), 3 states have internal predecessors, (3355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:26,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:54:26,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1114 of 2410 [2023-08-29 18:54:26,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:54:29,735 INFO L130 PetriNetUnfolder]: 21168/40624 cut-off events. [2023-08-29 18:54:29,736 INFO L131 PetriNetUnfolder]: For 4738/4912 co-relation queries the response was YES. [2023-08-29 18:54:29,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78425 conditions, 40624 events. 21168/40624 cut-off events. For 4738/4912 co-relation queries the response was YES. Maximal size of possible extension queue 872. Compared 356595 event pairs, 13452 based on Foata normal form. 1/35702 useless extension candidates. Maximal degree in co-relation 78411. Up to 28426 conditions per place. [2023-08-29 18:54:29,982 INFO L137 encePairwiseOnDemand]: 2406/2410 looper letters, 224 selfloop transitions, 3 changer transitions 0/304 dead transitions. [2023-08-29 18:54:29,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 304 transitions, 1283 flow [2023-08-29 18:54:29,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:54:29,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:54:29,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3540 transitions. [2023-08-29 18:54:29,989 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4896265560165975 [2023-08-29 18:54:29,989 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3540 transitions. [2023-08-29 18:54:29,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3540 transitions. [2023-08-29 18:54:29,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:54:29,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3540 transitions. [2023-08-29 18:54:29,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1180.0) internal successors, (3540), 3 states have internal predecessors, (3540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:30,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:30,001 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:30,001 INFO L175 Difference]: Start difference. First operand has 204 places, 233 transitions, 637 flow. Second operand 3 states and 3540 transitions. [2023-08-29 18:54:30,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 304 transitions, 1283 flow [2023-08-29 18:54:30,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 304 transitions, 1277 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:54:30,018 INFO L231 Difference]: Finished difference. Result has 207 places, 235 transitions, 656 flow [2023-08-29 18:54:30,018 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=207, PETRI_TRANSITIONS=235} [2023-08-29 18:54:30,019 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -96 predicate places. [2023-08-29 18:54:30,019 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 235 transitions, 656 flow [2023-08-29 18:54:30,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1118.3333333333333) internal successors, (3355), 3 states have internal predecessors, (3355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:30,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:54:30,020 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:54:30,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 18:54:30,020 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err53ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:54:30,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:54:30,021 INFO L85 PathProgramCache]: Analyzing trace with hash -211890260, now seen corresponding path program 1 times [2023-08-29 18:54:30,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:54:30,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978246282] [2023-08-29 18:54:30,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:54:30,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:54:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:54:30,072 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:54:30,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:54:30,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978246282] [2023-08-29 18:54:30,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978246282] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:54:30,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:54:30,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:54:30,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919258073] [2023-08-29 18:54:30,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:54:30,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:54:30,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:54:30,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:54:30,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:54:30,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1117 out of 2410 [2023-08-29 18:54:30,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 235 transitions, 656 flow. Second operand has 3 states, 3 states have (on average 1121.3333333333333) internal successors, (3364), 3 states have internal predecessors, (3364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:30,130 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:54:30,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1117 of 2410 [2023-08-29 18:54:30,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:54:35,089 INFO L130 PetriNetUnfolder]: 34271/63146 cut-off events. [2023-08-29 18:54:35,089 INFO L131 PetriNetUnfolder]: For 7489/7645 co-relation queries the response was YES. [2023-08-29 18:54:35,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125765 conditions, 63146 events. 34271/63146 cut-off events. For 7489/7645 co-relation queries the response was YES. Maximal size of possible extension queue 1076. Compared 553782 event pairs, 15870 based on Foata normal form. 0/56200 useless extension candidates. Maximal degree in co-relation 125750. Up to 31586 conditions per place. [2023-08-29 18:54:35,511 INFO L137 encePairwiseOnDemand]: 2407/2410 looper letters, 264 selfloop transitions, 2 changer transitions 0/343 dead transitions. [2023-08-29 18:54:35,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 343 transitions, 1460 flow [2023-08-29 18:54:35,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:54:35,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:54:35,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3585 transitions. [2023-08-29 18:54:35,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.495850622406639 [2023-08-29 18:54:35,515 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3585 transitions. [2023-08-29 18:54:35,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3585 transitions. [2023-08-29 18:54:35,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:54:35,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3585 transitions. [2023-08-29 18:54:35,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1195.0) internal successors, (3585), 3 states have internal predecessors, (3585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:35,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:35,525 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:35,525 INFO L175 Difference]: Start difference. First operand has 207 places, 235 transitions, 656 flow. Second operand 3 states and 3585 transitions. [2023-08-29 18:54:35,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 343 transitions, 1460 flow [2023-08-29 18:54:35,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 343 transitions, 1454 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:54:35,552 INFO L231 Difference]: Finished difference. Result has 208 places, 236 transitions, 662 flow [2023-08-29 18:54:35,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=208, PETRI_TRANSITIONS=236} [2023-08-29 18:54:35,554 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -95 predicate places. [2023-08-29 18:54:35,554 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 236 transitions, 662 flow [2023-08-29 18:54:35,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1121.3333333333333) internal successors, (3364), 3 states have internal predecessors, (3364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:35,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:54:35,555 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:54:35,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 18:54:35,555 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:54:35,555 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:54:35,555 INFO L85 PathProgramCache]: Analyzing trace with hash -211891073, now seen corresponding path program 1 times [2023-08-29 18:54:35,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:54:35,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53194458] [2023-08-29 18:54:35,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:54:35,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:54:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:54:35,593 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:54:35,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:54:35,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53194458] [2023-08-29 18:54:35,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53194458] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:54:35,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:54:35,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:54:35,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559145010] [2023-08-29 18:54:35,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:54:35,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:54:35,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:54:35,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:54:35,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:54:35,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1096 out of 2410 [2023-08-29 18:54:35,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 236 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 1100.6666666666667) internal successors, (3302), 3 states have internal predecessors, (3302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:35,620 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:54:35,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1096 of 2410 [2023-08-29 18:54:35,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:54:40,877 INFO L130 PetriNetUnfolder]: 37872/68266 cut-off events. [2023-08-29 18:54:40,877 INFO L131 PetriNetUnfolder]: For 8526/8682 co-relation queries the response was YES. [2023-08-29 18:54:41,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138011 conditions, 68266 events. 37872/68266 cut-off events. For 8526/8682 co-relation queries the response was YES. Maximal size of possible extension queue 1122. Compared 589060 event pairs, 7211 based on Foata normal form. 0/60705 useless extension candidates. Maximal degree in co-relation 137995. Up to 48699 conditions per place. [2023-08-29 18:54:41,545 INFO L137 encePairwiseOnDemand]: 2397/2410 looper letters, 239 selfloop transitions, 5 changer transitions 0/312 dead transitions. [2023-08-29 18:54:41,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 312 transitions, 1369 flow [2023-08-29 18:54:41,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:54:41,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:54:41,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3507 transitions. [2023-08-29 18:54:41,551 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4850622406639004 [2023-08-29 18:54:41,551 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3507 transitions. [2023-08-29 18:54:41,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3507 transitions. [2023-08-29 18:54:41,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:54:41,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3507 transitions. [2023-08-29 18:54:41,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1169.0) internal successors, (3507), 3 states have internal predecessors, (3507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:41,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:41,561 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:41,561 INFO L175 Difference]: Start difference. First operand has 208 places, 236 transitions, 662 flow. Second operand 3 states and 3507 transitions. [2023-08-29 18:54:41,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 312 transitions, 1369 flow [2023-08-29 18:54:41,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 312 transitions, 1366 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:54:41,582 INFO L231 Difference]: Finished difference. Result has 202 places, 233 transitions, 679 flow [2023-08-29 18:54:41,582 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=679, PETRI_PLACES=202, PETRI_TRANSITIONS=233} [2023-08-29 18:54:41,583 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -101 predicate places. [2023-08-29 18:54:41,583 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 233 transitions, 679 flow [2023-08-29 18:54:41,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1100.6666666666667) internal successors, (3302), 3 states have internal predecessors, (3302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:41,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:54:41,584 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:54:41,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 18:54:41,584 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:54:41,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:54:41,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1443662394, now seen corresponding path program 1 times [2023-08-29 18:54:41,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:54:41,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788753249] [2023-08-29 18:54:41,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:54:41,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:54:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:54:41,661 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:54:41,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:54:41,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788753249] [2023-08-29 18:54:41,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788753249] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:54:41,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:54:41,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:54:41,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129602209] [2023-08-29 18:54:41,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:54:41,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:54:41,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:54:41,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:54:41,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:54:41,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1101 out of 2410 [2023-08-29 18:54:41,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 233 transitions, 679 flow. Second operand has 3 states, 3 states have (on average 1106.0) internal successors, (3318), 3 states have internal predecessors, (3318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:41,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:54:41,785 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1101 of 2410 [2023-08-29 18:54:41,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:54:47,486 INFO L130 PetriNetUnfolder]: 40762/71956 cut-off events. [2023-08-29 18:54:47,487 INFO L131 PetriNetUnfolder]: For 8929/9085 co-relation queries the response was YES. [2023-08-29 18:54:47,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149145 conditions, 71956 events. 40762/71956 cut-off events. For 8929/9085 co-relation queries the response was YES. Maximal size of possible extension queue 1093. Compared 605738 event pairs, 13632 based on Foata normal form. 0/65335 useless extension candidates. Maximal degree in co-relation 149129. Up to 32704 conditions per place. [2023-08-29 18:54:48,240 INFO L137 encePairwiseOnDemand]: 2404/2410 looper letters, 234 selfloop transitions, 3 changer transitions 0/297 dead transitions. [2023-08-29 18:54:48,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 297 transitions, 1323 flow [2023-08-29 18:54:48,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:54:48,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:54:48,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3508 transitions. [2023-08-29 18:54:48,246 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4852005532503458 [2023-08-29 18:54:48,246 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3508 transitions. [2023-08-29 18:54:48,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3508 transitions. [2023-08-29 18:54:48,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:54:48,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3508 transitions. [2023-08-29 18:54:48,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1169.3333333333333) internal successors, (3508), 3 states have internal predecessors, (3508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:48,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:48,255 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:48,255 INFO L175 Difference]: Start difference. First operand has 202 places, 233 transitions, 679 flow. Second operand 3 states and 3508 transitions. [2023-08-29 18:54:48,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 297 transitions, 1323 flow [2023-08-29 18:54:48,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 297 transitions, 1323 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:54:48,277 INFO L231 Difference]: Finished difference. Result has 200 places, 229 transitions, 677 flow [2023-08-29 18:54:48,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=677, PETRI_PLACES=200, PETRI_TRANSITIONS=229} [2023-08-29 18:54:48,278 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -103 predicate places. [2023-08-29 18:54:48,278 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 229 transitions, 677 flow [2023-08-29 18:54:48,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1106.0) internal successors, (3318), 3 states have internal predecessors, (3318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:48,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:54:48,279 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:54:48,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 18:54:48,280 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err63ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:54:48,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:54:48,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1228747375, now seen corresponding path program 1 times [2023-08-29 18:54:48,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:54:48,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834379414] [2023-08-29 18:54:48,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:54:48,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:54:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:54:48,315 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:54:48,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:54:48,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834379414] [2023-08-29 18:54:48,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834379414] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:54:48,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:54:48,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:54:48,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277738196] [2023-08-29 18:54:48,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:54:48,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:54:48,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:54:48,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:54:48,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:54:48,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1114 out of 2410 [2023-08-29 18:54:48,329 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 229 transitions, 677 flow. Second operand has 3 states, 3 states have (on average 1119.0) internal successors, (3357), 3 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:48,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:54:48,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1114 of 2410 [2023-08-29 18:54:48,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:54:54,549 INFO L130 PetriNetUnfolder]: 40982/75959 cut-off events. [2023-08-29 18:54:54,549 INFO L131 PetriNetUnfolder]: For 10202/10380 co-relation queries the response was YES. [2023-08-29 18:54:54,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155161 conditions, 75959 events. 40982/75959 cut-off events. For 10202/10380 co-relation queries the response was YES. Maximal size of possible extension queue 1297. Compared 695638 event pairs, 26260 based on Foata normal form. 0/69251 useless extension candidates. Maximal degree in co-relation 155144. Up to 54402 conditions per place. [2023-08-29 18:54:55,106 INFO L137 encePairwiseOnDemand]: 2406/2410 looper letters, 306 selfloop transitions, 2 changer transitions 0/369 dead transitions. [2023-08-29 18:54:55,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 369 transitions, 1695 flow [2023-08-29 18:54:55,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:54:55,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:54:55,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3603 transitions. [2023-08-29 18:54:55,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4983402489626556 [2023-08-29 18:54:55,111 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3603 transitions. [2023-08-29 18:54:55,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3603 transitions. [2023-08-29 18:54:55,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:54:55,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3603 transitions. [2023-08-29 18:54:55,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1201.0) internal successors, (3603), 3 states have internal predecessors, (3603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:55,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:55,121 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:55,121 INFO L175 Difference]: Start difference. First operand has 200 places, 229 transitions, 677 flow. Second operand 3 states and 3603 transitions. [2023-08-29 18:54:55,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 369 transitions, 1695 flow [2023-08-29 18:54:55,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 369 transitions, 1685 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:54:55,147 INFO L231 Difference]: Finished difference. Result has 199 places, 229 transitions, 681 flow [2023-08-29 18:54:55,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=681, PETRI_PLACES=199, PETRI_TRANSITIONS=229} [2023-08-29 18:54:55,148 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -104 predicate places. [2023-08-29 18:54:55,148 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 229 transitions, 681 flow [2023-08-29 18:54:55,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1119.0) internal successors, (3357), 3 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:55,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:54:55,149 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:54:55,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 18:54:55,149 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err65ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:54:55,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:54:55,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1667790885, now seen corresponding path program 1 times [2023-08-29 18:54:55,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:54:55,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112503285] [2023-08-29 18:54:55,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:54:55,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:54:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:54:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:54:55,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:54:55,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112503285] [2023-08-29 18:54:55,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112503285] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:54:55,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:54:55,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:54:55,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118481279] [2023-08-29 18:54:55,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:54:55,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:54:55,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:54:55,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:54:55,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:54:55,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1119 out of 2410 [2023-08-29 18:54:55,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 229 transitions, 681 flow. Second operand has 3 states, 3 states have (on average 1123.6666666666667) internal successors, (3371), 3 states have internal predecessors, (3371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:55,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:54:55,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1119 of 2410 [2023-08-29 18:54:55,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:55:02,123 INFO L130 PetriNetUnfolder]: 43369/80498 cut-off events. [2023-08-29 18:55:02,123 INFO L131 PetriNetUnfolder]: For 10702/10883 co-relation queries the response was YES. [2023-08-29 18:55:02,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166345 conditions, 80498 events. 43369/80498 cut-off events. For 10702/10883 co-relation queries the response was YES. Maximal size of possible extension queue 1465. Compared 752456 event pairs, 28806 based on Foata normal form. 286/73926 useless extension candidates. Maximal degree in co-relation 166328. Up to 58534 conditions per place. [2023-08-29 18:55:02,683 INFO L137 encePairwiseOnDemand]: 2404/2410 looper letters, 241 selfloop transitions, 3 changer transitions 0/308 dead transitions. [2023-08-29 18:55:02,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 308 transitions, 1398 flow [2023-08-29 18:55:02,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:55:02,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:55:02,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3562 transitions. [2023-08-29 18:55:02,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4926694329183956 [2023-08-29 18:55:02,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3562 transitions. [2023-08-29 18:55:02,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3562 transitions. [2023-08-29 18:55:02,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:55:02,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3562 transitions. [2023-08-29 18:55:02,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1187.3333333333333) internal successors, (3562), 3 states have internal predecessors, (3562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:02,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:02,697 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:02,698 INFO L175 Difference]: Start difference. First operand has 199 places, 229 transitions, 681 flow. Second operand 3 states and 3562 transitions. [2023-08-29 18:55:02,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 308 transitions, 1398 flow [2023-08-29 18:55:02,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 308 transitions, 1398 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:55:02,788 INFO L231 Difference]: Finished difference. Result has 203 places, 230 transitions, 704 flow [2023-08-29 18:55:02,788 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=203, PETRI_TRANSITIONS=230} [2023-08-29 18:55:02,788 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -100 predicate places. [2023-08-29 18:55:02,788 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 230 transitions, 704 flow [2023-08-29 18:55:02,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1123.6666666666667) internal successors, (3371), 3 states have internal predecessors, (3371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:02,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:55:02,789 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:55:02,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 18:55:02,789 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:55:02,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:55:02,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1762978895, now seen corresponding path program 1 times [2023-08-29 18:55:02,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:55:02,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801886042] [2023-08-29 18:55:02,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:55:02,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:55:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:55:02,865 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:55:02,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:55:02,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801886042] [2023-08-29 18:55:02,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801886042] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:55:02,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:55:02,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:55:02,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435948966] [2023-08-29 18:55:02,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:55:02,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:55:02,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:55:02,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:55:02,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:55:02,987 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1101 out of 2410 [2023-08-29 18:55:02,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 230 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 1106.3333333333333) internal successors, (3319), 3 states have internal predecessors, (3319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:02,989 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:55:02,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1101 of 2410 [2023-08-29 18:55:02,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:55:09,578 INFO L130 PetriNetUnfolder]: 44134/78317 cut-off events. [2023-08-29 18:55:09,578 INFO L131 PetriNetUnfolder]: For 14979/15160 co-relation queries the response was YES. [2023-08-29 18:55:09,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168027 conditions, 78317 events. 44134/78317 cut-off events. For 14979/15160 co-relation queries the response was YES. Maximal size of possible extension queue 1360. Compared 693925 event pairs, 14668 based on Foata normal form. 0/71764 useless extension candidates. Maximal degree in co-relation 168008. Up to 38678 conditions per place. [2023-08-29 18:55:10,149 INFO L137 encePairwiseOnDemand]: 2404/2410 looper letters, 231 selfloop transitions, 3 changer transitions 0/293 dead transitions. [2023-08-29 18:55:10,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 293 transitions, 1352 flow [2023-08-29 18:55:10,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:55:10,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:55:10,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3503 transitions. [2023-08-29 18:55:10,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48450899031811895 [2023-08-29 18:55:10,152 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3503 transitions. [2023-08-29 18:55:10,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3503 transitions. [2023-08-29 18:55:10,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:55:10,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3503 transitions. [2023-08-29 18:55:10,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1167.6666666666667) internal successors, (3503), 3 states have internal predecessors, (3503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:10,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:10,161 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:10,162 INFO L175 Difference]: Start difference. First operand has 203 places, 230 transitions, 704 flow. Second operand 3 states and 3503 transitions. [2023-08-29 18:55:10,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 293 transitions, 1352 flow [2023-08-29 18:55:10,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 293 transitions, 1349 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:55:10,215 INFO L231 Difference]: Finished difference. Result has 200 places, 226 transitions, 699 flow [2023-08-29 18:55:10,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=699, PETRI_PLACES=200, PETRI_TRANSITIONS=226} [2023-08-29 18:55:10,216 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -103 predicate places. [2023-08-29 18:55:10,216 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 226 transitions, 699 flow [2023-08-29 18:55:10,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1106.3333333333333) internal successors, (3319), 3 states have internal predecessors, (3319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:10,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:55:10,217 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:55:10,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 18:55:10,217 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err64ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:55:10,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:55:10,217 INFO L85 PathProgramCache]: Analyzing trace with hash 289866646, now seen corresponding path program 1 times [2023-08-29 18:55:10,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:55:10,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346356417] [2023-08-29 18:55:10,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:55:10,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:55:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:55:10,253 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:55:10,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:55:10,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346356417] [2023-08-29 18:55:10,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346356417] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:55:10,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:55:10,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:55:10,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598724999] [2023-08-29 18:55:10,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:55:10,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:55:10,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:55:10,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:55:10,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:55:10,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1114 out of 2410 [2023-08-29 18:55:10,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 226 transitions, 699 flow. Second operand has 3 states, 3 states have (on average 1119.3333333333333) internal successors, (3358), 3 states have internal predecessors, (3358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:10,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:55:10,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1114 of 2410 [2023-08-29 18:55:10,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:55:17,066 INFO L130 PetriNetUnfolder]: 45149/82036 cut-off events. [2023-08-29 18:55:17,066 INFO L131 PetriNetUnfolder]: For 14490/14671 co-relation queries the response was YES. [2023-08-29 18:55:17,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175143 conditions, 82036 events. 45149/82036 cut-off events. For 14490/14671 co-relation queries the response was YES. Maximal size of possible extension queue 1389. Compared 745291 event pairs, 28810 based on Foata normal form. 0/75543 useless extension candidates. Maximal degree in co-relation 175124. Up to 58816 conditions per place. [2023-08-29 18:55:17,685 INFO L137 encePairwiseOnDemand]: 2406/2410 looper letters, 308 selfloop transitions, 2 changer transitions 0/366 dead transitions. [2023-08-29 18:55:17,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 366 transitions, 1741 flow [2023-08-29 18:55:17,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:55:17,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:55:17,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3603 transitions. [2023-08-29 18:55:17,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4983402489626556 [2023-08-29 18:55:17,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3603 transitions. [2023-08-29 18:55:17,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3603 transitions. [2023-08-29 18:55:17,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:55:17,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3603 transitions. [2023-08-29 18:55:17,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1201.0) internal successors, (3603), 3 states have internal predecessors, (3603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:17,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:17,697 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:17,697 INFO L175 Difference]: Start difference. First operand has 200 places, 226 transitions, 699 flow. Second operand 3 states and 3603 transitions. [2023-08-29 18:55:17,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 366 transitions, 1741 flow [2023-08-29 18:55:17,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 366 transitions, 1729 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:55:17,739 INFO L231 Difference]: Finished difference. Result has 199 places, 226 transitions, 703 flow [2023-08-29 18:55:17,739 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=703, PETRI_PLACES=199, PETRI_TRANSITIONS=226} [2023-08-29 18:55:17,740 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -104 predicate places. [2023-08-29 18:55:17,740 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 226 transitions, 703 flow [2023-08-29 18:55:17,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1119.3333333333333) internal successors, (3358), 3 states have internal predecessors, (3358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:17,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:55:17,741 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:55:17,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 18:55:17,741 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err65ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:55:17,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:55:17,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1527059239, now seen corresponding path program 1 times [2023-08-29 18:55:17,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:55:17,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516168359] [2023-08-29 18:55:17,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:55:17,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:55:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:55:17,784 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:55:17,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:55:17,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516168359] [2023-08-29 18:55:17,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516168359] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:55:17,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:55:17,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:55:17,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802238591] [2023-08-29 18:55:17,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:55:17,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:55:17,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:55:17,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:55:17,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:55:17,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1105 out of 2410 [2023-08-29 18:55:17,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 226 transitions, 703 flow. Second operand has 3 states, 3 states have (on average 1110.3333333333333) internal successors, (3331), 3 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:17,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:55:17,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1105 of 2410 [2023-08-29 18:55:17,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:55:24,432 INFO L130 PetriNetUnfolder]: 43407/77968 cut-off events. [2023-08-29 18:55:24,432 INFO L131 PetriNetUnfolder]: For 13030/13215 co-relation queries the response was YES. [2023-08-29 18:55:24,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167429 conditions, 77968 events. 43407/77968 cut-off events. For 13030/13215 co-relation queries the response was YES. Maximal size of possible extension queue 1374. Compared 694895 event pairs, 31091 based on Foata normal form. 1274/73554 useless extension candidates. Maximal degree in co-relation 167410. Up to 63331 conditions per place. [2023-08-29 18:55:25,035 INFO L137 encePairwiseOnDemand]: 2405/2410 looper letters, 234 selfloop transitions, 5 changer transitions 0/297 dead transitions. [2023-08-29 18:55:25,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 297 transitions, 1391 flow [2023-08-29 18:55:25,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:55:25,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:55:25,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3511 transitions. [2023-08-29 18:55:25,038 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4856154910096819 [2023-08-29 18:55:25,038 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3511 transitions. [2023-08-29 18:55:25,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3511 transitions. [2023-08-29 18:55:25,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:55:25,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3511 transitions. [2023-08-29 18:55:25,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1170.3333333333333) internal successors, (3511), 3 states have internal predecessors, (3511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:25,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:25,046 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:25,046 INFO L175 Difference]: Start difference. First operand has 199 places, 226 transitions, 703 flow. Second operand 3 states and 3511 transitions. [2023-08-29 18:55:25,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 297 transitions, 1391 flow [2023-08-29 18:55:25,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 297 transitions, 1391 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:55:25,083 INFO L231 Difference]: Finished difference. Result has 200 places, 225 transitions, 711 flow [2023-08-29 18:55:25,083 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=711, PETRI_PLACES=200, PETRI_TRANSITIONS=225} [2023-08-29 18:55:25,084 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -103 predicate places. [2023-08-29 18:55:25,084 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 225 transitions, 711 flow [2023-08-29 18:55:25,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1110.3333333333333) internal successors, (3331), 3 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:25,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:55:25,085 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:55:25,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 18:55:25,085 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:55:25,085 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:55:25,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1427134266, now seen corresponding path program 1 times [2023-08-29 18:55:25,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:55:25,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318928101] [2023-08-29 18:55:25,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:55:25,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:55:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:55:25,165 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:55:25,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:55:25,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318928101] [2023-08-29 18:55:25,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318928101] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:55:25,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:55:25,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:55:25,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216693945] [2023-08-29 18:55:25,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:55:25,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:55:25,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:55:25,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:55:25,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:55:25,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1101 out of 2410 [2023-08-29 18:55:25,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 225 transitions, 711 flow. Second operand has 3 states, 3 states have (on average 1107.0) internal successors, (3321), 3 states have internal predecessors, (3321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:25,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:55:25,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1101 of 2410 [2023-08-29 18:55:25,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:55:34,310 INFO L130 PetriNetUnfolder]: 59378/102794 cut-off events. [2023-08-29 18:55:34,310 INFO L131 PetriNetUnfolder]: For 21070/21255 co-relation queries the response was YES. [2023-08-29 18:55:34,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224682 conditions, 102794 events. 59378/102794 cut-off events. For 21070/21255 co-relation queries the response was YES. Maximal size of possible extension queue 1585. Compared 896245 event pairs, 31634 based on Foata normal form. 0/95627 useless extension candidates. Maximal degree in co-relation 224662. Up to 63182 conditions per place. [2023-08-29 18:55:35,359 INFO L137 encePairwiseOnDemand]: 2401/2410 looper letters, 261 selfloop transitions, 6 changer transitions 0/317 dead transitions. [2023-08-29 18:55:35,360 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 317 transitions, 1510 flow [2023-08-29 18:55:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:55:35,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:55:35,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3533 transitions. [2023-08-29 18:55:35,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48865836791147993 [2023-08-29 18:55:35,376 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3533 transitions. [2023-08-29 18:55:35,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3533 transitions. [2023-08-29 18:55:35,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:55:35,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3533 transitions. [2023-08-29 18:55:35,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1177.6666666666667) internal successors, (3533), 3 states have internal predecessors, (3533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:35,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:35,384 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2410.0) internal successors, (9640), 4 states have internal predecessors, (9640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:35,384 INFO L175 Difference]: Start difference. First operand has 200 places, 225 transitions, 711 flow. Second operand 3 states and 3533 transitions. [2023-08-29 18:55:35,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 317 transitions, 1510 flow [2023-08-29 18:55:35,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 317 transitions, 1490 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:55:35,594 INFO L231 Difference]: Finished difference. Result has 198 places, 226 transitions, 741 flow [2023-08-29 18:55:35,594 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2410, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=741, PETRI_PLACES=198, PETRI_TRANSITIONS=226} [2023-08-29 18:55:35,594 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -105 predicate places. [2023-08-29 18:55:35,594 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 226 transitions, 741 flow [2023-08-29 18:55:35,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1107.0) internal successors, (3321), 3 states have internal predecessors, (3321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:35,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:55:35,595 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:55:35,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 18:55:35,596 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-08-29 18:55:35,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:55:35,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1181653455, now seen corresponding path program 1 times [2023-08-29 18:55:35,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:55:35,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817637253] [2023-08-29 18:55:35,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:55:35,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:55:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:55:35,725 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:55:35,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:55:35,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817637253] [2023-08-29 18:55:35,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817637253] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:55:35,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:55:35,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:55:35,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676669656] [2023-08-29 18:55:35,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:55:35,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:55:35,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:55:35,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:55:35,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:55:35,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1101 out of 2410 [2023-08-29 18:55:35,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 226 transitions, 741 flow. Second operand has 3 states, 3 states have (on average 1107.3333333333333) internal successors, (3322), 3 states have internal predecessors, (3322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:35,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:55:35,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1101 of 2410 [2023-08-29 18:55:35,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand