./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product.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 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 21:47:53,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:47:53,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:47:53,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:47:53,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:47:53,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:47:53,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:47:53,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:47:53,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:47:53,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:47:53,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:47:53,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:47:53,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:47:53,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:47:53,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:47:53,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:47:53,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:47:53,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:47:53,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:47:53,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:47:53,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:47:53,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:47:53,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:47:53,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:47:53,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:47:53,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:47:53,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:47:53,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:47:53,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:47:53,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:47:53,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:47:53,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:47:53,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:47:53,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:47:53,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:47:53,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:47:53,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:47:53,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:47:53,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:47:53,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:47:53,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:47:53,157 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:47:53,191 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:47:53,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:47:53,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:47:53,192 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:47:53,193 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:47:53,193 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:47:53,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:47:53,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:47:53,194 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:47:53,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:47:53,194 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:47:53,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:47:53,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:47:53,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:47:53,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:47:53,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:47:53,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:47:53,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:47:53,195 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:47:53,196 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:47:53,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:47:53,196 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:47:53,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:47:53,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:47:53,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:47:53,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:47:53,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:47:53,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:47:53,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:47:53,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:47:53,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:47:53,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:47:53,197 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:47:53,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:47:53,198 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:47:53,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:47:53,198 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:47:53,198 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:47:53,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:47:53,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:47:53,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:47:53,449 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:47:53,449 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:47:53,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c [2023-08-31 21:47:54,254 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:47:54,435 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:47:54,435 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c [2023-08-31 21:47:54,439 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ea1dd72/1388f52b8b1449f1915f2c2456c5003c/FLAGec8dbbc76 [2023-08-31 21:47:54,449 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ea1dd72/1388f52b8b1449f1915f2c2456c5003c [2023-08-31 21:47:54,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:47:54,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:47:54,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:47:54,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:47:54,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:47:54,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:47:54" (1/1) ... [2023-08-31 21:47:54,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34aa3ddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:54, skipping insertion in model container [2023-08-31 21:47:54,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:47:54" (1/1) ... [2023-08-31 21:47:54,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:47:54,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:47:54,597 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/popl20-bad-dot-product.wvr.c[2865,2878] [2023-08-31 21:47:54,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:47:54,607 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:47:54,627 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/popl20-bad-dot-product.wvr.c[2865,2878] [2023-08-31 21:47:54,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:47:54,635 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 21:47:54,635 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 21:47:54,639 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:47:54,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:54 WrapperNode [2023-08-31 21:47:54,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:47:54,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:47:54,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:47:54,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:47:54,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:54" (1/1) ... [2023-08-31 21:47:54,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:54" (1/1) ... [2023-08-31 21:47:54,710 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 22, statements flattened = 442 [2023-08-31 21:47:54,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:47:54,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:47:54,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:47:54,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:47:54,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:54" (1/1) ... [2023-08-31 21:47:54,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:54" (1/1) ... [2023-08-31 21:47:54,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:54" (1/1) ... [2023-08-31 21:47:54,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:54" (1/1) ... [2023-08-31 21:47:54,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:54" (1/1) ... [2023-08-31 21:47:54,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:54" (1/1) ... [2023-08-31 21:47:54,758 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:54" (1/1) ... [2023-08-31 21:47:54,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:54" (1/1) ... [2023-08-31 21:47:54,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:47:54,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:47:54,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:47:54,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:47:54,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:54" (1/1) ... [2023-08-31 21:47:54,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:47:54,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:47:54,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 21:47:54,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 21:47:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:47:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:47:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:47:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:47:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:47:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:47:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:47:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:47:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-31 21:47:54,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-31 21:47:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:47:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 21:47:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 21:47:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 21:47:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:47:54,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:47:54,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:47:54,845 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 21:47:54,997 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:47:54,998 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:47:55,488 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:47:55,691 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:47:55,691 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-31 21:47:55,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:47:55 BoogieIcfgContainer [2023-08-31 21:47:55,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:47:55,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:47:55,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:47:55,698 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:47:55,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:47:54" (1/3) ... [2023-08-31 21:47:55,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e05c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:47:55, skipping insertion in model container [2023-08-31 21:47:55,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:54" (2/3) ... [2023-08-31 21:47:55,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e05c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:47:55, skipping insertion in model container [2023-08-31 21:47:55,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:47:55" (3/3) ... [2023-08-31 21:47:55,699 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product.wvr.c [2023-08-31 21:47:55,704 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:47:55,710 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:47:55,710 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2023-08-31 21:47:55,711 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:47:55,804 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-31 21:47:55,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 393 places, 409 transitions, 842 flow [2023-08-31 21:47:55,964 INFO L130 PetriNetUnfolder]: 26/406 cut-off events. [2023-08-31 21:47:55,964 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:47:55,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 406 events. 26/406 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 786 event pairs, 0 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 299. Up to 2 conditions per place. [2023-08-31 21:47:55,981 INFO L82 GeneralOperation]: Start removeDead. Operand has 393 places, 409 transitions, 842 flow [2023-08-31 21:47:55,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 389 transitions, 796 flow [2023-08-31 21:47:55,992 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:47:56,001 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 374 places, 389 transitions, 796 flow [2023-08-31 21:47:56,003 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 374 places, 389 transitions, 796 flow [2023-08-31 21:47:56,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 389 transitions, 796 flow [2023-08-31 21:47:56,050 INFO L130 PetriNetUnfolder]: 25/389 cut-off events. [2023-08-31 21:47:56,051 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:47:56,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 389 events. 25/389 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 785 event pairs, 0 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 299. Up to 2 conditions per place. [2023-08-31 21:47:56,061 INFO L119 LiptonReduction]: Number of co-enabled transitions 27714 [2023-08-31 21:48:03,911 INFO L134 LiptonReduction]: Checked pairs total: 197985 [2023-08-31 21:48:03,911 INFO L136 LiptonReduction]: Total number of compositions: 345 [2023-08-31 21:48:03,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:48:03,924 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;@4332d3c3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:48:03,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2023-08-31 21:48:03,925 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:48:03,926 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:48:03,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:48:03,926 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:48:03,926 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-31 21:48:03,929 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:48:03,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1728, now seen corresponding path program 1 times [2023-08-31 21:48:03,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:48:03,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005015708] [2023-08-31 21:48:03,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:03,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:48:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:03,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:48:03,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:48:03,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005015708] [2023-08-31 21:48:03,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005015708] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:48:03,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:48:03,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:48:03,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545541435] [2023-08-31 21:48:03,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:48:04,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:48:04,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:48:04,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:48:04,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:48:04,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 754 [2023-08-31 21:48:04,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 155 transitions, 328 flow. Second operand has 2 states, 2 states have (on average 370.5) internal successors, (741), 2 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:04,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:48:04,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 754 [2023-08-31 21:48:04,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:48:04,607 INFO L130 PetriNetUnfolder]: 2339/5773 cut-off events. [2023-08-31 21:48:04,607 INFO L131 PetriNetUnfolder]: For 178/178 co-relation queries the response was YES. [2023-08-31 21:48:04,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9029 conditions, 5773 events. 2339/5773 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 51100 event pairs, 1473 based on Foata normal form. 1187/5702 useless extension candidates. Maximal degree in co-relation 7939. Up to 3109 conditions per place. [2023-08-31 21:48:04,636 INFO L137 encePairwiseOnDemand]: 720/754 looper letters, 36 selfloop transitions, 0 changer transitions 1/121 dead transitions. [2023-08-31 21:48:04,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 121 transitions, 334 flow [2023-08-31 21:48:04,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:48:04,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:48:04,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 811 transitions. [2023-08-31 21:48:04,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5377984084880637 [2023-08-31 21:48:04,650 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 811 transitions. [2023-08-31 21:48:04,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 811 transitions. [2023-08-31 21:48:04,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:48:04,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 811 transitions. [2023-08-31 21:48:04,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 405.5) internal successors, (811), 2 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:04,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:04,664 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:04,665 INFO L175 Difference]: Start difference. First operand has 149 places, 155 transitions, 328 flow. Second operand 2 states and 811 transitions. [2023-08-31 21:48:04,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 121 transitions, 334 flow [2023-08-31 21:48:04,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 121 transitions, 322 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 21:48:04,673 INFO L231 Difference]: Finished difference. Result has 118 places, 120 transitions, 245 flow [2023-08-31 21:48:04,674 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=245, PETRI_PLACES=118, PETRI_TRANSITIONS=120} [2023-08-31 21:48:04,679 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -31 predicate places. [2023-08-31 21:48:04,680 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 120 transitions, 245 flow [2023-08-31 21:48:04,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 370.5) internal successors, (741), 2 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:04,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:48:04,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:48:04,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:48:04,682 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-31 21:48:04,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:48:04,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1379137783, now seen corresponding path program 1 times [2023-08-31 21:48:04,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:48:04,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255405538] [2023-08-31 21:48:04,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:04,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:48:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:04,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:48:04,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:48:04,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255405538] [2023-08-31 21:48:04,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255405538] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:48:04,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:48:04,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:48:04,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584613370] [2023-08-31 21:48:04,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:48:04,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:48:04,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:48:04,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:48:04,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:48:04,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 754 [2023-08-31 21:48:04,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 120 transitions, 245 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:04,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:48:04,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 754 [2023-08-31 21:48:04,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:48:05,459 INFO L130 PetriNetUnfolder]: 3499/7802 cut-off events. [2023-08-31 21:48:05,459 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2023-08-31 21:48:05,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12573 conditions, 7802 events. 3499/7802 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 68095 event pairs, 2423 based on Foata normal form. 0/6202 useless extension candidates. Maximal degree in co-relation 12570. Up to 4711 conditions per place. [2023-08-31 21:48:05,492 INFO L137 encePairwiseOnDemand]: 751/754 looper letters, 39 selfloop transitions, 1 changer transitions 0/118 dead transitions. [2023-08-31 21:48:05,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 118 transitions, 321 flow [2023-08-31 21:48:05,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:48:05,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:48:05,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1113 transitions. [2023-08-31 21:48:05,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4920424403183024 [2023-08-31 21:48:05,495 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1113 transitions. [2023-08-31 21:48:05,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1113 transitions. [2023-08-31 21:48:05,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:48:05,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1113 transitions. [2023-08-31 21:48:05,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:05,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:05,501 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:05,501 INFO L175 Difference]: Start difference. First operand has 118 places, 120 transitions, 245 flow. Second operand 3 states and 1113 transitions. [2023-08-31 21:48:05,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 118 transitions, 321 flow [2023-08-31 21:48:05,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 118 transitions, 321 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:48:05,503 INFO L231 Difference]: Finished difference. Result has 117 places, 118 transitions, 243 flow [2023-08-31 21:48:05,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=243, PETRI_PLACES=117, PETRI_TRANSITIONS=118} [2023-08-31 21:48:05,504 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -32 predicate places. [2023-08-31 21:48:05,504 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 118 transitions, 243 flow [2023-08-31 21:48:05,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:05,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:48:05,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:48:05,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:48:05,505 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-31 21:48:05,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:48:05,505 INFO L85 PathProgramCache]: Analyzing trace with hash -2088936086, now seen corresponding path program 1 times [2023-08-31 21:48:05,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:48:05,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207647341] [2023-08-31 21:48:05,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:05,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:48:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:05,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:48:05,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:48:05,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207647341] [2023-08-31 21:48:05,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207647341] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:48:05,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:48:05,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:48:05,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185781124] [2023-08-31 21:48:05,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:48:05,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:48:05,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:48:05,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:48:05,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:48:05,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 754 [2023-08-31 21:48:05,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 118 transitions, 243 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:05,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:48:05,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 754 [2023-08-31 21:48:05,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:48:06,223 INFO L130 PetriNetUnfolder]: 3233/7551 cut-off events. [2023-08-31 21:48:06,224 INFO L131 PetriNetUnfolder]: For 81/81 co-relation queries the response was YES. [2023-08-31 21:48:06,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11974 conditions, 7551 events. 3233/7551 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 67569 event pairs, 2245 based on Foata normal form. 0/6241 useless extension candidates. Maximal degree in co-relation 11970. Up to 4359 conditions per place. [2023-08-31 21:48:06,278 INFO L137 encePairwiseOnDemand]: 751/754 looper letters, 38 selfloop transitions, 1 changer transitions 0/116 dead transitions. [2023-08-31 21:48:06,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 116 transitions, 317 flow [2023-08-31 21:48:06,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:48:06,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:48:06,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1112 transitions. [2023-08-31 21:48:06,281 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4916003536693192 [2023-08-31 21:48:06,281 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1112 transitions. [2023-08-31 21:48:06,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1112 transitions. [2023-08-31 21:48:06,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:48:06,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1112 transitions. [2023-08-31 21:48:06,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:06,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:06,287 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:06,287 INFO L175 Difference]: Start difference. First operand has 117 places, 118 transitions, 243 flow. Second operand 3 states and 1112 transitions. [2023-08-31 21:48:06,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 116 transitions, 317 flow [2023-08-31 21:48:06,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 116 transitions, 316 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:48:06,289 INFO L231 Difference]: Finished difference. Result has 116 places, 116 transitions, 240 flow [2023-08-31 21:48:06,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=116, PETRI_TRANSITIONS=116} [2023-08-31 21:48:06,290 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -33 predicate places. [2023-08-31 21:48:06,290 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 116 transitions, 240 flow [2023-08-31 21:48:06,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:06,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:48:06,291 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:48:06,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:48:06,291 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-31 21:48:06,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:48:06,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1793531520, now seen corresponding path program 1 times [2023-08-31 21:48:06,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:48:06,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490217392] [2023-08-31 21:48:06,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:06,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:48:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:06,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:48:06,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:48:06,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490217392] [2023-08-31 21:48:06,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490217392] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:48:06,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:48:06,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:48:06,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011449397] [2023-08-31 21:48:06,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:48:06,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:48:06,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:48:06,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:48:06,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:48:06,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 351 out of 754 [2023-08-31 21:48:06,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 116 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 353.0) internal successors, (1059), 3 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:06,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:48:06,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 351 of 754 [2023-08-31 21:48:06,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:48:07,195 INFO L130 PetriNetUnfolder]: 6401/12542 cut-off events. [2023-08-31 21:48:07,196 INFO L131 PetriNetUnfolder]: For 117/117 co-relation queries the response was YES. [2023-08-31 21:48:07,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21277 conditions, 12542 events. 6401/12542 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 103970 event pairs, 2329 based on Foata normal form. 0/11397 useless extension candidates. Maximal degree in co-relation 21273. Up to 8518 conditions per place. [2023-08-31 21:48:07,258 INFO L137 encePairwiseOnDemand]: 745/754 looper letters, 58 selfloop transitions, 3 changer transitions 0/126 dead transitions. [2023-08-31 21:48:07,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 126 transitions, 386 flow [2023-08-31 21:48:07,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:48:07,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:48:07,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1120 transitions. [2023-08-31 21:48:07,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4951370468611848 [2023-08-31 21:48:07,261 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1120 transitions. [2023-08-31 21:48:07,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1120 transitions. [2023-08-31 21:48:07,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:48:07,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1120 transitions. [2023-08-31 21:48:07,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:07,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:07,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:07,268 INFO L175 Difference]: Start difference. First operand has 116 places, 116 transitions, 240 flow. Second operand 3 states and 1120 transitions. [2023-08-31 21:48:07,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 126 transitions, 386 flow [2023-08-31 21:48:07,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 126 transitions, 385 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:48:07,326 INFO L231 Difference]: Finished difference. Result has 112 places, 113 transitions, 248 flow [2023-08-31 21:48:07,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=112, PETRI_TRANSITIONS=113} [2023-08-31 21:48:07,327 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -37 predicate places. [2023-08-31 21:48:07,327 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 113 transitions, 248 flow [2023-08-31 21:48:07,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.0) internal successors, (1059), 3 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:07,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:48:07,328 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:48:07,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:48:07,328 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-31 21:48:07,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:48:07,328 INFO L85 PathProgramCache]: Analyzing trace with hash 870082046, now seen corresponding path program 1 times [2023-08-31 21:48:07,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:48:07,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027838952] [2023-08-31 21:48:07,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:07,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:48:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:07,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:48:07,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:48:07,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027838952] [2023-08-31 21:48:07,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027838952] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:48:07,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:48:07,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:48:07,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012012333] [2023-08-31 21:48:07,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:48:07,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-31 21:48:07,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:48:07,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-31 21:48:07,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-31 21:48:07,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 360 out of 754 [2023-08-31 21:48:07,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 113 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 362.25) internal successors, (1449), 4 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:07,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:48:07,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 360 of 754 [2023-08-31 21:48:07,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:48:07,868 INFO L130 PetriNetUnfolder]: 2435/5863 cut-off events. [2023-08-31 21:48:07,869 INFO L131 PetriNetUnfolder]: For 631/631 co-relation queries the response was YES. [2023-08-31 21:48:07,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9818 conditions, 5863 events. 2435/5863 cut-off events. For 631/631 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 51693 event pairs, 1411 based on Foata normal form. 0/4704 useless extension candidates. Maximal degree in co-relation 9814. Up to 3253 conditions per place. [2023-08-31 21:48:07,897 INFO L137 encePairwiseOnDemand]: 749/754 looper letters, 38 selfloop transitions, 2 changer transitions 3/117 dead transitions. [2023-08-31 21:48:07,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 117 transitions, 342 flow [2023-08-31 21:48:07,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 21:48:07,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 21:48:07,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1842 transitions. [2023-08-31 21:48:07,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48859416445623344 [2023-08-31 21:48:07,901 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1842 transitions. [2023-08-31 21:48:07,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1842 transitions. [2023-08-31 21:48:07,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:48:07,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1842 transitions. [2023-08-31 21:48:07,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 368.4) internal successors, (1842), 5 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:07,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 754.0) internal successors, (4524), 6 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:07,910 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 754.0) internal successors, (4524), 6 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:07,910 INFO L175 Difference]: Start difference. First operand has 112 places, 113 transitions, 248 flow. Second operand 5 states and 1842 transitions. [2023-08-31 21:48:07,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 117 transitions, 342 flow [2023-08-31 21:48:07,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 117 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:48:07,912 INFO L231 Difference]: Finished difference. Result has 119 places, 114 transitions, 266 flow [2023-08-31 21:48:07,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=266, PETRI_PLACES=119, PETRI_TRANSITIONS=114} [2023-08-31 21:48:07,913 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -30 predicate places. [2023-08-31 21:48:07,913 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 114 transitions, 266 flow [2023-08-31 21:48:07,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 362.25) internal successors, (1449), 4 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:07,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:48:07,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:48:07,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:48:07,914 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-31 21:48:07,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:48:07,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1267659844, now seen corresponding path program 1 times [2023-08-31 21:48:07,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:48:07,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715095123] [2023-08-31 21:48:07,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:07,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:48:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:08,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:48:08,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:48:08,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715095123] [2023-08-31 21:48:08,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715095123] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:48:08,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:48:08,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:48:08,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23694587] [2023-08-31 21:48:08,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:48:08,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:48:08,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:48:08,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:48:08,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:48:08,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 754 [2023-08-31 21:48:08,482 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 114 transitions, 266 flow. Second operand has 6 states, 6 states have (on average 355.3333333333333) internal successors, (2132), 6 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:08,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:48:08,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 754 [2023-08-31 21:48:08,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:48:09,340 INFO L130 PetriNetUnfolder]: 6926/10837 cut-off events. [2023-08-31 21:48:09,340 INFO L131 PetriNetUnfolder]: For 1530/1530 co-relation queries the response was YES. [2023-08-31 21:48:09,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21521 conditions, 10837 events. 6926/10837 cut-off events. For 1530/1530 co-relation queries the response was YES. Maximal size of possible extension queue 489. Compared 74670 event pairs, 786 based on Foata normal form. 0/9587 useless extension candidates. Maximal degree in co-relation 21513. Up to 3258 conditions per place. [2023-08-31 21:48:09,378 INFO L137 encePairwiseOnDemand]: 749/754 looper letters, 136 selfloop transitions, 4 changer transitions 0/209 dead transitions. [2023-08-31 21:48:09,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 209 transitions, 796 flow [2023-08-31 21:48:09,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:48:09,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:48:09,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2243 transitions. [2023-08-31 21:48:09,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4958001768346596 [2023-08-31 21:48:09,383 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2243 transitions. [2023-08-31 21:48:09,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2243 transitions. [2023-08-31 21:48:09,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:48:09,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2243 transitions. [2023-08-31 21:48:09,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 373.8333333333333) internal successors, (2243), 6 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) [2023-08-31 21:48:09,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:09,392 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:09,392 INFO L175 Difference]: Start difference. First operand has 119 places, 114 transitions, 266 flow. Second operand 6 states and 2243 transitions. [2023-08-31 21:48:09,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 209 transitions, 796 flow [2023-08-31 21:48:09,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 209 transitions, 786 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-31 21:48:09,396 INFO L231 Difference]: Finished difference. Result has 118 places, 113 transitions, 262 flow [2023-08-31 21:48:09,396 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=262, PETRI_PLACES=118, PETRI_TRANSITIONS=113} [2023-08-31 21:48:09,396 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -31 predicate places. [2023-08-31 21:48:09,397 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 262 flow [2023-08-31 21:48:09,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 355.3333333333333) internal successors, (2132), 6 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:09,397 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:48:09,397 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:48:09,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 21:48:09,398 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-31 21:48:09,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:48:09,398 INFO L85 PathProgramCache]: Analyzing trace with hash -186413662, now seen corresponding path program 1 times [2023-08-31 21:48:09,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:48:09,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667675423] [2023-08-31 21:48:09,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:09,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:48:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:09,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:48:09,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:48:09,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667675423] [2023-08-31 21:48:09,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667675423] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:48:09,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:48:09,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:48:09,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184569273] [2023-08-31 21:48:09,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:48:09,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:48:09,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:48:09,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:48:09,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:48:09,869 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 754 [2023-08-31 21:48:09,870 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 113 transitions, 262 flow. Second operand has 6 states, 6 states have (on average 348.0) internal successors, (2088), 6 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:09,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:48:09,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 754 [2023-08-31 21:48:09,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:48:10,646 INFO L130 PetriNetUnfolder]: 5203/9284 cut-off events. [2023-08-31 21:48:10,646 INFO L131 PetriNetUnfolder]: For 1692/1692 co-relation queries the response was YES. [2023-08-31 21:48:10,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18804 conditions, 9284 events. 5203/9284 cut-off events. For 1692/1692 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 72340 event pairs, 961 based on Foata normal form. 0/8274 useless extension candidates. Maximal degree in co-relation 18798. Up to 3502 conditions per place. [2023-08-31 21:48:10,683 INFO L137 encePairwiseOnDemand]: 747/754 looper letters, 125 selfloop transitions, 5 changer transitions 0/191 dead transitions. [2023-08-31 21:48:10,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 191 transitions, 710 flow [2023-08-31 21:48:10,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:48:10,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:48:10,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2204 transitions. [2023-08-31 21:48:10,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48717948717948717 [2023-08-31 21:48:10,688 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2204 transitions. [2023-08-31 21:48:10,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2204 transitions. [2023-08-31 21:48:10,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:48:10,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2204 transitions. [2023-08-31 21:48:10,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 367.3333333333333) internal successors, (2204), 6 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:10,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:10,698 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:10,698 INFO L175 Difference]: Start difference. First operand has 118 places, 113 transitions, 262 flow. Second operand 6 states and 2204 transitions. [2023-08-31 21:48:10,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 191 transitions, 710 flow [2023-08-31 21:48:10,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 191 transitions, 695 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:48:10,707 INFO L231 Difference]: Finished difference. Result has 117 places, 111 transitions, 261 flow [2023-08-31 21:48:10,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=261, PETRI_PLACES=117, PETRI_TRANSITIONS=111} [2023-08-31 21:48:10,708 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -32 predicate places. [2023-08-31 21:48:10,708 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 111 transitions, 261 flow [2023-08-31 21:48:10,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.0) internal successors, (2088), 6 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:10,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:48:10,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:48:10,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 21:48:10,709 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-31 21:48:10,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:48:10,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1217834929, now seen corresponding path program 1 times [2023-08-31 21:48:10,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:48:10,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091859751] [2023-08-31 21:48:10,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:10,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:48:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:10,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:48:10,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:48:10,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091859751] [2023-08-31 21:48:10,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091859751] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:48:10,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114014191] [2023-08-31 21:48:10,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:10,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:48:10,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:48:10,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:48:10,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-31 21:48:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:10,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-31 21:48:10,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:48:11,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:48:11,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 21:48:11,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:48:11,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114014191] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 21:48:11,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 21:48:11,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-31 21:48:11,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991168572] [2023-08-31 21:48:11,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 21:48:11,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 21:48:11,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:48:11,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 21:48:11,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-08-31 21:48:11,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 350 out of 754 [2023-08-31 21:48:11,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 111 transitions, 261 flow. Second operand has 13 states, 13 states have (on average 351.46153846153845) internal successors, (4569), 13 states have internal predecessors, (4569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:11,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:48:11,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 350 of 754 [2023-08-31 21:48:11,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:48:12,313 INFO L130 PetriNetUnfolder]: 3429/7859 cut-off events. [2023-08-31 21:48:12,313 INFO L131 PetriNetUnfolder]: For 1055/1066 co-relation queries the response was YES. [2023-08-31 21:48:12,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13995 conditions, 7859 events. 3429/7859 cut-off events. For 1055/1066 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 71035 event pairs, 1592 based on Foata normal form. 153/7080 useless extension candidates. Maximal degree in co-relation 13989. Up to 2638 conditions per place. [2023-08-31 21:48:12,347 INFO L137 encePairwiseOnDemand]: 747/754 looper letters, 111 selfloop transitions, 7 changer transitions 0/188 dead transitions. [2023-08-31 21:48:12,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 188 transitions, 701 flow [2023-08-31 21:48:12,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 21:48:12,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 21:48:12,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2910 transitions. [2023-08-31 21:48:12,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4824270557029178 [2023-08-31 21:48:12,354 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2910 transitions. [2023-08-31 21:48:12,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2910 transitions. [2023-08-31 21:48:12,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:48:12,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2910 transitions. [2023-08-31 21:48:12,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 363.75) internal successors, (2910), 8 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:12,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 754.0) internal successors, (6786), 9 states have internal predecessors, (6786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:12,366 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 754.0) internal successors, (6786), 9 states have internal predecessors, (6786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:12,366 INFO L175 Difference]: Start difference. First operand has 117 places, 111 transitions, 261 flow. Second operand 8 states and 2910 transitions. [2023-08-31 21:48:12,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 188 transitions, 701 flow [2023-08-31 21:48:12,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 188 transitions, 685 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:48:12,369 INFO L231 Difference]: Finished difference. Result has 124 places, 116 transitions, 305 flow [2023-08-31 21:48:12,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=305, PETRI_PLACES=124, PETRI_TRANSITIONS=116} [2023-08-31 21:48:12,369 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -25 predicate places. [2023-08-31 21:48:12,370 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 116 transitions, 305 flow [2023-08-31 21:48:12,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 351.46153846153845) internal successors, (4569), 13 states have internal predecessors, (4569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:12,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:48:12,371 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:48:12,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-31 21:48:12,578 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 [2023-08-31 21:48:12,579 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-31 21:48:12,579 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:48:12,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1245136804, now seen corresponding path program 1 times [2023-08-31 21:48:12,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:48:12,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784636792] [2023-08-31 21:48:12,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:12,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:48:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:12,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:48:12,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:48:12,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784636792] [2023-08-31 21:48:12,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784636792] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:48:12,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:48:12,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:48:12,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22820213] [2023-08-31 21:48:12,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:48:12,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:48:12,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:48:12,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:48:12,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:48:12,618 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 754 [2023-08-31 21:48:12,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 116 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:12,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:48:12,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 754 [2023-08-31 21:48:12,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:48:13,202 INFO L130 PetriNetUnfolder]: 4299/9886 cut-off events. [2023-08-31 21:48:13,202 INFO L131 PetriNetUnfolder]: For 2472/2634 co-relation queries the response was YES. [2023-08-31 21:48:13,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18194 conditions, 9886 events. 4299/9886 cut-off events. For 2472/2634 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 91265 event pairs, 2752 based on Foata normal form. 162/9065 useless extension candidates. Maximal degree in co-relation 18184. Up to 5878 conditions per place. [2023-08-31 21:48:13,242 INFO L137 encePairwiseOnDemand]: 750/754 looper letters, 45 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2023-08-31 21:48:13,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 113 transitions, 393 flow [2023-08-31 21:48:13,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:48:13,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:48:13,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1113 transitions. [2023-08-31 21:48:13,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4920424403183024 [2023-08-31 21:48:13,244 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1113 transitions. [2023-08-31 21:48:13,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1113 transitions. [2023-08-31 21:48:13,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:48:13,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1113 transitions. [2023-08-31 21:48:13,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:13,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:13,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:13,249 INFO L175 Difference]: Start difference. First operand has 124 places, 116 transitions, 305 flow. Second operand 3 states and 1113 transitions. [2023-08-31 21:48:13,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 113 transitions, 393 flow [2023-08-31 21:48:13,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 113 transitions, 385 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-31 21:48:13,253 INFO L231 Difference]: Finished difference. Result has 122 places, 113 transitions, 295 flow [2023-08-31 21:48:13,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=295, PETRI_PLACES=122, PETRI_TRANSITIONS=113} [2023-08-31 21:48:13,254 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -27 predicate places. [2023-08-31 21:48:13,254 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 113 transitions, 295 flow [2023-08-31 21:48:13,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:13,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:48:13,255 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:48:13,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 21:48:13,255 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-31 21:48:13,255 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:48:13,255 INFO L85 PathProgramCache]: Analyzing trace with hash -665194317, now seen corresponding path program 2 times [2023-08-31 21:48:13,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:48:13,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89209617] [2023-08-31 21:48:13,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:13,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:48:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:13,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-31 21:48:13,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:48:13,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89209617] [2023-08-31 21:48:13,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89209617] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:48:13,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:48:13,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:48:13,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339740620] [2023-08-31 21:48:13,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:48:13,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:48:13,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:48:13,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:48:13,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:48:13,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 754 [2023-08-31 21:48:13,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 113 transitions, 295 flow. Second operand has 6 states, 6 states have (on average 348.3333333333333) internal successors, (2090), 6 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:13,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:48:13,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 754 [2023-08-31 21:48:13,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:48:14,814 INFO L130 PetriNetUnfolder]: 6543/12141 cut-off events. [2023-08-31 21:48:14,815 INFO L131 PetriNetUnfolder]: For 2417/2417 co-relation queries the response was YES. [2023-08-31 21:48:14,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23880 conditions, 12141 events. 6543/12141 cut-off events. For 2417/2417 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 103590 event pairs, 1722 based on Foata normal form. 0/10827 useless extension candidates. Maximal degree in co-relation 23869. Up to 3884 conditions per place. [2023-08-31 21:48:14,869 INFO L137 encePairwiseOnDemand]: 747/754 looper letters, 130 selfloop transitions, 5 changer transitions 0/191 dead transitions. [2023-08-31 21:48:14,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 191 transitions, 745 flow [2023-08-31 21:48:14,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:48:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:48:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2204 transitions. [2023-08-31 21:48:14,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48717948717948717 [2023-08-31 21:48:14,873 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2204 transitions. [2023-08-31 21:48:14,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2204 transitions. [2023-08-31 21:48:14,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:48:14,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2204 transitions. [2023-08-31 21:48:14,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 367.3333333333333) internal successors, (2204), 6 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:14,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:14,882 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:14,882 INFO L175 Difference]: Start difference. First operand has 122 places, 113 transitions, 295 flow. Second operand 6 states and 2204 transitions. [2023-08-31 21:48:14,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 191 transitions, 745 flow [2023-08-31 21:48:14,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 191 transitions, 743 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:48:14,886 INFO L231 Difference]: Finished difference. Result has 124 places, 111 transitions, 299 flow [2023-08-31 21:48:14,887 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=299, PETRI_PLACES=124, PETRI_TRANSITIONS=111} [2023-08-31 21:48:14,888 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -25 predicate places. [2023-08-31 21:48:14,888 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 111 transitions, 299 flow [2023-08-31 21:48:14,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.3333333333333) internal successors, (2090), 6 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:14,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:48:14,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:48:14,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 21:48:14,889 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-31 21:48:14,889 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:48:14,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1690781619, now seen corresponding path program 1 times [2023-08-31 21:48:14,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:48:14,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102373638] [2023-08-31 21:48:14,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:14,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:48:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:15,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:48:15,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:48:15,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102373638] [2023-08-31 21:48:15,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102373638] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:48:15,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:48:15,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:48:15,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496903326] [2023-08-31 21:48:15,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:48:15,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:48:15,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:48:15,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:48:15,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:48:15,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 754 [2023-08-31 21:48:15,499 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 111 transitions, 299 flow. Second operand has 6 states, 6 states have (on average 348.6666666666667) internal successors, (2092), 6 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:15,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:48:15,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 754 [2023-08-31 21:48:15,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:48:16,248 INFO L130 PetriNetUnfolder]: 5354/9195 cut-off events. [2023-08-31 21:48:16,248 INFO L131 PetriNetUnfolder]: For 3518/3737 co-relation queries the response was YES. [2023-08-31 21:48:16,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19918 conditions, 9195 events. 5354/9195 cut-off events. For 3518/3737 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 70724 event pairs, 1034 based on Foata normal form. 219/8501 useless extension candidates. Maximal degree in co-relation 19907. Up to 3620 conditions per place. [2023-08-31 21:48:16,289 INFO L137 encePairwiseOnDemand]: 747/754 looper letters, 118 selfloop transitions, 5 changer transitions 0/181 dead transitions. [2023-08-31 21:48:16,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 181 transitions, 745 flow [2023-08-31 21:48:16,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:48:16,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:48:16,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2189 transitions. [2023-08-31 21:48:16,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4838638373121132 [2023-08-31 21:48:16,294 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2189 transitions. [2023-08-31 21:48:16,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2189 transitions. [2023-08-31 21:48:16,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:48:16,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2189 transitions. [2023-08-31 21:48:16,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 364.8333333333333) internal successors, (2189), 6 states have internal predecessors, (2189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:16,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:16,301 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:16,301 INFO L175 Difference]: Start difference. First operand has 124 places, 111 transitions, 299 flow. Second operand 6 states and 2189 transitions. [2023-08-31 21:48:16,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 181 transitions, 745 flow [2023-08-31 21:48:16,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 181 transitions, 727 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:48:16,305 INFO L231 Difference]: Finished difference. Result has 122 places, 109 transitions, 295 flow [2023-08-31 21:48:16,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=295, PETRI_PLACES=122, PETRI_TRANSITIONS=109} [2023-08-31 21:48:16,306 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -27 predicate places. [2023-08-31 21:48:16,306 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 109 transitions, 295 flow [2023-08-31 21:48:16,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.6666666666667) internal successors, (2092), 6 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:16,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:48:16,306 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:48:16,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 21:48:16,307 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-31 21:48:16,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:48:16,307 INFO L85 PathProgramCache]: Analyzing trace with hash 547174113, now seen corresponding path program 1 times [2023-08-31 21:48:16,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:48:16,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639934293] [2023-08-31 21:48:16,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:16,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:48:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:16,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:48:16,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:48:16,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639934293] [2023-08-31 21:48:16,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639934293] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:48:16,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129204909] [2023-08-31 21:48:16,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:16,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:48:16,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:48:16,368 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:48:16,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-31 21:48:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:16,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-31 21:48:16,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:48:16,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:48:16,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 21:48:16,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:48:16,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129204909] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-31 21:48:16,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-31 21:48:16,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2023-08-31 21:48:16,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436470271] [2023-08-31 21:48:16,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:48:16,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 21:48:16,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:48:16,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 21:48:16,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-31 21:48:16,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 754 [2023-08-31 21:48:16,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 109 transitions, 295 flow. Second operand has 5 states, 5 states have (on average 354.8) internal successors, (1774), 5 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:16,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:48:16,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 754 [2023-08-31 21:48:16,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:48:17,160 INFO L130 PetriNetUnfolder]: 3283/7690 cut-off events. [2023-08-31 21:48:17,160 INFO L131 PetriNetUnfolder]: For 2289/2466 co-relation queries the response was YES. [2023-08-31 21:48:17,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14780 conditions, 7690 events. 3283/7690 cut-off events. For 2289/2466 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 66499 event pairs, 1274 based on Foata normal form. 306/7295 useless extension candidates. Maximal degree in co-relation 14769. Up to 2528 conditions per place. [2023-08-31 21:48:17,193 INFO L137 encePairwiseOnDemand]: 748/754 looper letters, 64 selfloop transitions, 5 changer transitions 0/133 dead transitions. [2023-08-31 21:48:17,193 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 133 transitions, 508 flow [2023-08-31 21:48:17,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 21:48:17,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 21:48:17,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1820 transitions. [2023-08-31 21:48:17,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4827586206896552 [2023-08-31 21:48:17,196 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1820 transitions. [2023-08-31 21:48:17,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1820 transitions. [2023-08-31 21:48:17,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:48:17,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1820 transitions. [2023-08-31 21:48:17,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 364.0) internal successors, (1820), 5 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:17,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 754.0) internal successors, (4524), 6 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:17,202 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 754.0) internal successors, (4524), 6 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:17,202 INFO L175 Difference]: Start difference. First operand has 122 places, 109 transitions, 295 flow. Second operand 5 states and 1820 transitions. [2023-08-31 21:48:17,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 133 transitions, 508 flow [2023-08-31 21:48:17,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 133 transitions, 494 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:48:17,209 INFO L231 Difference]: Finished difference. Result has 123 places, 110 transitions, 310 flow [2023-08-31 21:48:17,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=310, PETRI_PLACES=123, PETRI_TRANSITIONS=110} [2023-08-31 21:48:17,210 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -26 predicate places. [2023-08-31 21:48:17,210 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 110 transitions, 310 flow [2023-08-31 21:48:17,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 354.8) internal successors, (1774), 5 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:17,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:48:17,211 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:48:17,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-31 21:48:17,417 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,SelfDestructingSolverStorable11 [2023-08-31 21:48:17,418 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-31 21:48:17,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:48:17,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1690057843, now seen corresponding path program 1 times [2023-08-31 21:48:17,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:48:17,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704898190] [2023-08-31 21:48:17,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:17,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:48:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:17,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-31 21:48:17,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:48:17,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704898190] [2023-08-31 21:48:17,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704898190] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:48:17,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:48:17,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:48:17,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692639788] [2023-08-31 21:48:17,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:48:17,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:48:17,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:48:17,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:48:17,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:48:17,968 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 754 [2023-08-31 21:48:17,969 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 110 transitions, 310 flow. Second operand has 6 states, 6 states have (on average 356.3333333333333) internal successors, (2138), 6 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:17,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:48:17,969 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 754 [2023-08-31 21:48:17,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:48:18,563 INFO L130 PetriNetUnfolder]: 3418/7255 cut-off events. [2023-08-31 21:48:18,563 INFO L131 PetriNetUnfolder]: For 4236/4672 co-relation queries the response was YES. [2023-08-31 21:48:18,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15304 conditions, 7255 events. 3418/7255 cut-off events. For 4236/4672 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 62023 event pairs, 1670 based on Foata normal form. 436/6795 useless extension candidates. Maximal degree in co-relation 15291. Up to 3637 conditions per place. [2023-08-31 21:48:18,595 INFO L137 encePairwiseOnDemand]: 749/754 looper letters, 109 selfloop transitions, 4 changer transitions 0/173 dead transitions. [2023-08-31 21:48:18,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 173 transitions, 706 flow [2023-08-31 21:48:18,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:48:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:48:18,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2219 transitions. [2023-08-31 21:48:18,598 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4904951370468612 [2023-08-31 21:48:18,599 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2219 transitions. [2023-08-31 21:48:18,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2219 transitions. [2023-08-31 21:48:18,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:48:18,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2219 transitions. [2023-08-31 21:48:18,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 369.8333333333333) internal successors, (2219), 6 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:18,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:18,606 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:18,606 INFO L175 Difference]: Start difference. First operand has 123 places, 110 transitions, 310 flow. Second operand 6 states and 2219 transitions. [2023-08-31 21:48:18,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 173 transitions, 706 flow [2023-08-31 21:48:18,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 173 transitions, 700 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 21:48:18,609 INFO L231 Difference]: Finished difference. Result has 124 places, 109 transitions, 310 flow [2023-08-31 21:48:18,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=310, PETRI_PLACES=124, PETRI_TRANSITIONS=109} [2023-08-31 21:48:18,610 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -25 predicate places. [2023-08-31 21:48:18,610 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 109 transitions, 310 flow [2023-08-31 21:48:18,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 356.3333333333333) internal successors, (2138), 6 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:18,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:48:18,611 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:48:18,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 21:48:18,611 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-31 21:48:18,611 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:48:18,612 INFO L85 PathProgramCache]: Analyzing trace with hash -555189283, now seen corresponding path program 1 times [2023-08-31 21:48:18,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:48:18,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11182321] [2023-08-31 21:48:18,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:48:18,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:48:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:48:18,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-31 21:48:18,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:48:18,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11182321] [2023-08-31 21:48:18,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11182321] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:48:18,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:48:18,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:48:18,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415433525] [2023-08-31 21:48:18,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:48:18,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:48:18,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:48:18,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:48:18,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:48:19,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 754 [2023-08-31 21:48:19,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 109 transitions, 310 flow. Second operand has 6 states, 6 states have (on average 356.8333333333333) internal successors, (2141), 6 states have internal predecessors, (2141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:19,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:48:19,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 754 [2023-08-31 21:48:19,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:48:19,746 INFO L130 PetriNetUnfolder]: 2914/6735 cut-off events. [2023-08-31 21:48:19,746 INFO L131 PetriNetUnfolder]: For 3582/3986 co-relation queries the response was YES. [2023-08-31 21:48:19,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13882 conditions, 6735 events. 2914/6735 cut-off events. For 3582/3986 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 59114 event pairs, 1788 based on Foata normal form. 404/6315 useless extension candidates. Maximal degree in co-relation 13869. Up to 3879 conditions per place. [2023-08-31 21:48:19,764 INFO L137 encePairwiseOnDemand]: 749/754 looper letters, 0 selfloop transitions, 0 changer transitions 144/144 dead transitions. [2023-08-31 21:48:19,764 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 144 transitions, 558 flow [2023-08-31 21:48:19,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:48:19,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:48:19,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2195 transitions. [2023-08-31 21:48:19,767 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48519009725906276 [2023-08-31 21:48:19,767 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2195 transitions. [2023-08-31 21:48:19,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2195 transitions. [2023-08-31 21:48:19,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:48:19,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2195 transitions. [2023-08-31 21:48:19,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 365.8333333333333) internal successors, (2195), 6 states have internal predecessors, (2195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:19,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:19,773 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:19,774 INFO L175 Difference]: Start difference. First operand has 124 places, 109 transitions, 310 flow. Second operand 6 states and 2195 transitions. [2023-08-31 21:48:19,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 144 transitions, 558 flow [2023-08-31 21:48:19,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 144 transitions, 551 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:48:19,778 INFO L231 Difference]: Finished difference. Result has 124 places, 0 transitions, 0 flow [2023-08-31 21:48:19,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=124, PETRI_TRANSITIONS=0} [2023-08-31 21:48:19,779 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -25 predicate places. [2023-08-31 21:48:19,779 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 0 transitions, 0 flow [2023-08-31 21:48:19,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 356.8333333333333) internal successors, (2141), 6 states have internal predecessors, (2141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:48:19,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (81 of 82 remaining) [2023-08-31 21:48:19,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (80 of 82 remaining) [2023-08-31 21:48:19,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (79 of 82 remaining) [2023-08-31 21:48:19,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (78 of 82 remaining) [2023-08-31 21:48:19,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (77 of 82 remaining) [2023-08-31 21:48:19,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (76 of 82 remaining) [2023-08-31 21:48:19,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (75 of 82 remaining) [2023-08-31 21:48:19,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (74 of 82 remaining) [2023-08-31 21:48:19,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (73 of 82 remaining) [2023-08-31 21:48:19,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (72 of 82 remaining) [2023-08-31 21:48:19,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (71 of 82 remaining) [2023-08-31 21:48:19,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (70 of 82 remaining) [2023-08-31 21:48:19,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (69 of 82 remaining) [2023-08-31 21:48:19,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (68 of 82 remaining) [2023-08-31 21:48:19,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (67 of 82 remaining) [2023-08-31 21:48:19,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (66 of 82 remaining) [2023-08-31 21:48:19,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (65 of 82 remaining) [2023-08-31 21:48:19,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (64 of 82 remaining) [2023-08-31 21:48:19,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (63 of 82 remaining) [2023-08-31 21:48:19,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (62 of 82 remaining) [2023-08-31 21:48:19,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (61 of 82 remaining) [2023-08-31 21:48:19,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (60 of 82 remaining) [2023-08-31 21:48:19,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (59 of 82 remaining) [2023-08-31 21:48:19,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (58 of 82 remaining) [2023-08-31 21:48:19,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (57 of 82 remaining) [2023-08-31 21:48:19,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (56 of 82 remaining) [2023-08-31 21:48:19,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (55 of 82 remaining) [2023-08-31 21:48:19,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (54 of 82 remaining) [2023-08-31 21:48:19,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (53 of 82 remaining) [2023-08-31 21:48:19,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (52 of 82 remaining) [2023-08-31 21:48:19,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (51 of 82 remaining) [2023-08-31 21:48:19,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (50 of 82 remaining) [2023-08-31 21:48:19,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (49 of 82 remaining) [2023-08-31 21:48:19,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (48 of 82 remaining) [2023-08-31 21:48:19,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (47 of 82 remaining) [2023-08-31 21:48:19,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (46 of 82 remaining) [2023-08-31 21:48:19,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 82 remaining) [2023-08-31 21:48:19,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (44 of 82 remaining) [2023-08-31 21:48:19,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (43 of 82 remaining) [2023-08-31 21:48:19,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (42 of 82 remaining) [2023-08-31 21:48:19,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (41 of 82 remaining) [2023-08-31 21:48:19,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (40 of 82 remaining) [2023-08-31 21:48:19,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (39 of 82 remaining) [2023-08-31 21:48:19,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (38 of 82 remaining) [2023-08-31 21:48:19,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (37 of 82 remaining) [2023-08-31 21:48:19,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (36 of 82 remaining) [2023-08-31 21:48:19,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 82 remaining) [2023-08-31 21:48:19,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (34 of 82 remaining) [2023-08-31 21:48:19,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 82 remaining) [2023-08-31 21:48:19,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 82 remaining) [2023-08-31 21:48:19,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 82 remaining) [2023-08-31 21:48:19,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (30 of 82 remaining) [2023-08-31 21:48:19,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (29 of 82 remaining) [2023-08-31 21:48:19,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (28 of 82 remaining) [2023-08-31 21:48:19,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (27 of 82 remaining) [2023-08-31 21:48:19,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (26 of 82 remaining) [2023-08-31 21:48:19,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (25 of 82 remaining) [2023-08-31 21:48:19,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (24 of 82 remaining) [2023-08-31 21:48:19,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (23 of 82 remaining) [2023-08-31 21:48:19,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (22 of 82 remaining) [2023-08-31 21:48:19,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (21 of 82 remaining) [2023-08-31 21:48:19,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (20 of 82 remaining) [2023-08-31 21:48:19,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (19 of 82 remaining) [2023-08-31 21:48:19,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (18 of 82 remaining) [2023-08-31 21:48:19,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (17 of 82 remaining) [2023-08-31 21:48:19,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (16 of 82 remaining) [2023-08-31 21:48:19,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (15 of 82 remaining) [2023-08-31 21:48:19,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (14 of 82 remaining) [2023-08-31 21:48:19,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (13 of 82 remaining) [2023-08-31 21:48:19,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (12 of 82 remaining) [2023-08-31 21:48:19,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (11 of 82 remaining) [2023-08-31 21:48:19,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (10 of 82 remaining) [2023-08-31 21:48:19,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (9 of 82 remaining) [2023-08-31 21:48:19,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (8 of 82 remaining) [2023-08-31 21:48:19,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (7 of 82 remaining) [2023-08-31 21:48:19,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (6 of 82 remaining) [2023-08-31 21:48:19,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (5 of 82 remaining) [2023-08-31 21:48:19,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (4 of 82 remaining) [2023-08-31 21:48:19,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (3 of 82 remaining) [2023-08-31 21:48:19,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (2 of 82 remaining) [2023-08-31 21:48:19,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (1 of 82 remaining) [2023-08-31 21:48:19,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (0 of 82 remaining) [2023-08-31 21:48:19,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 21:48:19,792 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:48:19,796 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:48:19,796 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:48:19,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:48:19 BasicIcfg [2023-08-31 21:48:19,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:48:19,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:48:19,799 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:48:19,799 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:48:19,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:47:55" (3/4) ... [2023-08-31 21:48:19,800 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:48:19,803 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:48:19,804 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:48:19,804 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-31 21:48:19,807 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-08-31 21:48:19,808 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:48:19,808 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:48:19,808 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:48:19,839 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:48:19,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:48:19,839 INFO L158 Benchmark]: Toolchain (without parser) took 25387.56ms. Allocated memory was 75.5MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 51.5MB in the beginning and 862.4MB in the end (delta: -811.0MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2023-08-31 21:48:19,839 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 54.5MB. Free memory was 31.6MB in the beginning and 31.6MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:48:19,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.33ms. Allocated memory is still 75.5MB. Free memory was 51.3MB in the beginning and 38.2MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-31 21:48:19,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.18ms. Allocated memory is still 75.5MB. Free memory was 38.0MB in the beginning and 52.9MB in the end (delta: -14.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-08-31 21:48:19,840 INFO L158 Benchmark]: Boogie Preprocessor took 59.99ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 49.5MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:48:19,840 INFO L158 Benchmark]: RCFGBuilder took 919.88ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 49.5MB in the beginning and 48.0MB in the end (delta: 1.5MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2023-08-31 21:48:19,841 INFO L158 Benchmark]: TraceAbstraction took 24102.79ms. Allocated memory was 98.6MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 47.8MB in the beginning and 866.6MB in the end (delta: -818.8MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2023-08-31 21:48:19,841 INFO L158 Benchmark]: Witness Printer took 40.39ms. Allocated memory is still 2.2GB. Free memory was 866.6MB in the beginning and 862.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:48:19,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 54.5MB. Free memory was 31.6MB in the beginning and 31.6MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 187.33ms. Allocated memory is still 75.5MB. Free memory was 51.3MB in the beginning and 38.2MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.18ms. Allocated memory is still 75.5MB. Free memory was 38.0MB in the beginning and 52.9MB in the end (delta: -14.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.99ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 49.5MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 919.88ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 49.5MB in the beginning and 48.0MB in the end (delta: 1.5MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. * TraceAbstraction took 24102.79ms. Allocated memory was 98.6MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 47.8MB in the beginning and 866.6MB in the end (delta: -818.8MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 40.39ms. Allocated memory is still 2.2GB. Free memory was 866.6MB in the beginning and 862.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.9s, 374 PlacesBefore, 149 PlacesAfterwards, 389 TransitionsBefore, 155 TransitionsAfterwards, 27714 CoEnabledTransitionPairs, 8 FixpointIterations, 190 TrivialSequentialCompositions, 88 ConcurrentSequentialCompositions, 28 TrivialYvCompositions, 30 ConcurrentYvCompositions, 9 ChoiceCompositions, 345 TotalNumberOfCompositions, 197985 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37200, independent: 35273, independent conditional: 0, independent unconditional: 35273, dependent: 1927, dependent conditional: 0, dependent unconditional: 1927, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 13388, independent: 13168, independent conditional: 0, independent unconditional: 13168, dependent: 220, dependent conditional: 0, dependent unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 37200, independent: 22105, independent conditional: 0, independent unconditional: 22105, dependent: 1707, dependent conditional: 0, dependent unconditional: 1707, unknown: 13388, unknown conditional: 0, unknown unconditional: 13388] , Statistics on independence cache: Total cache size (in pairs): 2159, Positive cache size: 2033, Positive conditional cache size: 0, Positive unconditional cache size: 2033, Negative cache size: 126, Negative conditional cache size: 0, Negative unconditional cache size: 126, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 118]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 118]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 106]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 106]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 546 locations, 82 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 24.0s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 13.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3089 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2028 mSDsluCounter, 878 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 634 mSDsCounter, 1024 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6068 IncrementalHoareTripleChecker+Invalid, 7092 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1024 mSolverCounterUnsat, 244 mSDtfsCounter, 6068 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=328occurred in iteration=0, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 303 NumberOfCodeBlocks, 303 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 326 ConstructedInterpolants, 0 QuantifiedInterpolants, 1110 SizeOfPredicates, 9 NumberOfNonLiveVariables, 506 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 18 InterpolantComputations, 13 PerfectInterpolantSequences, 14/19 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 48 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:48:19,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE