./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-subst.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 3c2ccb27a3ce50ce458a10a4aa8fbbd4d9c9d88060b8c7df98385ed8946afbfa --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:32:44,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:32:44,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:32:44,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:32:44,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:32:44,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:32:44,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:32:44,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:32:44,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:32:44,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:32:44,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:32:44,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:32:44,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:32:44,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:32:44,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:32:44,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:32:44,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:32:44,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:32:44,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:32:44,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:32:44,597 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:32:44,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:32:44,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:32:44,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:32:44,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:32:44,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:32:44,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:32:44,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:32:44,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:32:44,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:32:44,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:32:44,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:32:44,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:32:44,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:32:44,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:32:44,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:32:44,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:32:44,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:32:44,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:32:44,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:32:44,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:32:44,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:32:44,624 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:32:44,651 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:32:44,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:32:44,652 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:32:44,652 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:32:44,653 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:32:44,653 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:32:44,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:32:44,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:32:44,654 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:32:44,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:32:44,655 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:32:44,655 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:32:44,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:32:44,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:32:44,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:32:44,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:32:44,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:32:44,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:32:44,657 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:32:44,657 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:32:44,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:32:44,657 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:32:44,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:32:44,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:32:44,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:32:44,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:32:44,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:32:44,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:32:44,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:32:44,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:32:44,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:32:44,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:32:44,660 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:32:44,660 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:32:44,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:32:44,660 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c2ccb27a3ce50ce458a10a4aa8fbbd4d9c9d88060b8c7df98385ed8946afbfa [2022-04-18 16:32:44,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:32:44,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:32:44,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:32:44,925 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:32:44,926 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:32:44,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2022-04-18 16:32:44,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f8d6b71c/d774d40035424475a6363df06c3d3c92/FLAGcd94f313a [2022-04-18 16:32:45,360 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:32:45,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2022-04-18 16:32:45,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f8d6b71c/d774d40035424475a6363df06c3d3c92/FLAGcd94f313a [2022-04-18 16:32:45,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f8d6b71c/d774d40035424475a6363df06c3d3c92 [2022-04-18 16:32:45,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:32:45,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:32:45,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:32:45,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:32:45,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:32:45,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:32:45" (1/1) ... [2022-04-18 16:32:45,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ffa1f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:45, skipping insertion in model container [2022-04-18 16:32:45,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:32:45" (1/1) ... [2022-04-18 16:32:45,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:32:45,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:32:46,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-subst.wvr.c[3017,3030] [2022-04-18 16:32:46,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:32:46,054 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:32:46,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-subst.wvr.c[3017,3030] [2022-04-18 16:32:46,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:32:46,133 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:32:46,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46 WrapperNode [2022-04-18 16:32:46,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:32:46,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:32:46,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:32:46,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:32:46,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,201 INFO L137 Inliner]: procedures = 23, calls = 34, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 379 [2022-04-18 16:32:46,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:32:46,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:32:46,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:32:46,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:32:46,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:32:46,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:32:46,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:32:46,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:32:46,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (1/1) ... [2022-04-18 16:32:46,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:32:46,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:32:46,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 16:32:46,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 16:32:46,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:32:46,341 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:32:46,341 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:32:46,341 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:32:46,341 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:32:46,342 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:32:46,342 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:32:46,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:32:46,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:32:46,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:32:46,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:32:46,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:32:46,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:32:46,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:32:46,345 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:32:46,453 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:32:46,455 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:32:47,049 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:32:47,063 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:32:47,063 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 16:32:47,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:32:47 BoogieIcfgContainer [2022-04-18 16:32:47,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:32:47,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:32:47,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:32:47,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:32:47,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:32:45" (1/3) ... [2022-04-18 16:32:47,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0dbdba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:32:47, skipping insertion in model container [2022-04-18 16:32:47,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:46" (2/3) ... [2022-04-18 16:32:47,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0dbdba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:32:47, skipping insertion in model container [2022-04-18 16:32:47,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:32:47" (3/3) ... [2022-04-18 16:32:47,077 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-match-subst.wvr.c [2022-04-18 16:32:47,083 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:32:47,083 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:32:47,084 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-04-18 16:32:47,084 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:32:47,191 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 16:32:47,233 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:32:47,244 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 16:32:47,244 INFO L341 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2022-04-18 16:32:47,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 501 places, 518 transitions, 1060 flow [2022-04-18 16:32:47,504 INFO L129 PetriNetUnfolder]: 27/515 cut-off events. [2022-04-18 16:32:47,504 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:32:47,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 515 events. 27/515 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1014 event pairs, 0 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 353. Up to 2 conditions per place. [2022-04-18 16:32:47,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 501 places, 518 transitions, 1060 flow [2022-04-18 16:32:47,535 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 477 places, 492 transitions, 1002 flow [2022-04-18 16:32:47,542 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2022-04-18 16:32:47,542 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:32:47,542 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:47,543 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:47,544 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:47,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:47,551 INFO L85 PathProgramCache]: Analyzing trace with hash 532381389, now seen corresponding path program 1 times [2022-04-18 16:32:47,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:47,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501084725] [2022-04-18 16:32:47,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:47,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:47,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:47,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:47,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501084725] [2022-04-18 16:32:47,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501084725] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:47,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:47,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:47,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406448954] [2022-04-18 16:32:47,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:47,785 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:47,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:47,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:47,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:47,820 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 479 out of 518 [2022-04-18 16:32:47,827 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 492 transitions, 1002 flow. Second operand has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:47,827 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:47,827 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 479 of 518 [2022-04-18 16:32:47,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:48,331 INFO L129 PetriNetUnfolder]: 228/1734 cut-off events. [2022-04-18 16:32:48,331 INFO L130 PetriNetUnfolder]: For 126/168 co-relation queries the response was YES. [2022-04-18 16:32:48,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2113 conditions, 1734 events. 228/1734 cut-off events. For 126/168 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 10892 event pairs, 132 based on Foata normal form. 97/1493 useless extension candidates. Maximal degree in co-relation 1877. Up to 250 conditions per place. [2022-04-18 16:32:48,368 INFO L132 encePairwiseOnDemand]: 502/518 looper letters, 21 selfloop transitions, 2 changer transitions 1/478 dead transitions. [2022-04-18 16:32:48,369 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 478 transitions, 1020 flow [2022-04-18 16:32:48,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:48,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:48,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1474 transitions. [2022-04-18 16:32:48,389 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9485199485199485 [2022-04-18 16:32:48,391 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1474 transitions. [2022-04-18 16:32:48,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1474 transitions. [2022-04-18 16:32:48,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:48,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1474 transitions. [2022-04-18 16:32:48,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 491.3333333333333) internal successors, (1474), 3 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,420 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,422 INFO L186 Difference]: Start difference. First operand has 477 places, 492 transitions, 1002 flow. Second operand 3 states and 1474 transitions. [2022-04-18 16:32:48,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 478 transitions, 1020 flow [2022-04-18 16:32:48,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 478 transitions, 1008 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-04-18 16:32:48,445 INFO L242 Difference]: Finished difference. Result has 472 places, 477 transitions, 964 flow [2022-04-18 16:32:48,448 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=962, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=964, PETRI_PLACES=472, PETRI_TRANSITIONS=477} [2022-04-18 16:32:48,454 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -5 predicate places. [2022-04-18 16:32:48,454 INFO L478 AbstractCegarLoop]: Abstraction has has 472 places, 477 transitions, 964 flow [2022-04-18 16:32:48,456 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,456 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:48,456 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:48,457 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:32:48,457 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:48,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:48,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1919870704, now seen corresponding path program 1 times [2022-04-18 16:32:48,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:48,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441684109] [2022-04-18 16:32:48,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:48,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:48,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:48,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:48,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441684109] [2022-04-18 16:32:48,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441684109] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:48,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:48,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:48,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750560079] [2022-04-18 16:32:48,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:48,527 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:48,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:48,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:48,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:48,530 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 518 [2022-04-18 16:32:48,532 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 477 transitions, 964 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:48,537 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 518 [2022-04-18 16:32:48,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:48,928 INFO L129 PetriNetUnfolder]: 91/1555 cut-off events. [2022-04-18 16:32:48,929 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 16:32:48,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1667 conditions, 1555 events. 91/1555 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8937 event pairs, 39 based on Foata normal form. 0/1293 useless extension candidates. Maximal degree in co-relation 1627. Up to 85 conditions per place. [2022-04-18 16:32:48,957 INFO L132 encePairwiseOnDemand]: 515/518 looper letters, 15 selfloop transitions, 2 changer transitions 0/476 dead transitions. [2022-04-18 16:32:48,958 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 476 transitions, 996 flow [2022-04-18 16:32:48,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:48,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:48,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1473 transitions. [2022-04-18 16:32:48,961 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9478764478764479 [2022-04-18 16:32:48,962 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1473 transitions. [2022-04-18 16:32:48,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1473 transitions. [2022-04-18 16:32:48,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:48,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1473 transitions. [2022-04-18 16:32:48,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 491.0) internal successors, (1473), 3 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,970 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,970 INFO L186 Difference]: Start difference. First operand has 472 places, 477 transitions, 964 flow. Second operand 3 states and 1473 transitions. [2022-04-18 16:32:48,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 476 transitions, 996 flow [2022-04-18 16:32:48,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 476 transitions, 992 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:48,979 INFO L242 Difference]: Finished difference. Result has 470 places, 476 transitions, 962 flow [2022-04-18 16:32:48,980 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=958, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=962, PETRI_PLACES=470, PETRI_TRANSITIONS=476} [2022-04-18 16:32:48,981 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -7 predicate places. [2022-04-18 16:32:48,981 INFO L478 AbstractCegarLoop]: Abstraction has has 470 places, 476 transitions, 962 flow [2022-04-18 16:32:48,982 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:48,982 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:48,982 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:48,982 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:32:48,983 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:48,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:48,983 INFO L85 PathProgramCache]: Analyzing trace with hash -189694443, now seen corresponding path program 1 times [2022-04-18 16:32:48,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:48,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419116595] [2022-04-18 16:32:48,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:48,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:49,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:49,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:49,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419116595] [2022-04-18 16:32:49,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419116595] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:49,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:49,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:49,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743571631] [2022-04-18 16:32:49,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:49,024 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:49,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:49,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:49,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:49,027 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 518 [2022-04-18 16:32:49,029 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 476 transitions, 962 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,029 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:49,029 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 518 [2022-04-18 16:32:49,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:49,356 INFO L129 PetriNetUnfolder]: 95/1622 cut-off events. [2022-04-18 16:32:49,357 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 16:32:49,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1734 conditions, 1622 events. 95/1622 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 9692 event pairs, 39 based on Foata normal form. 0/1365 useless extension candidates. Maximal degree in co-relation 1687. Up to 85 conditions per place. [2022-04-18 16:32:49,391 INFO L132 encePairwiseOnDemand]: 515/518 looper letters, 15 selfloop transitions, 2 changer transitions 0/475 dead transitions. [2022-04-18 16:32:49,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 475 transitions, 994 flow [2022-04-18 16:32:49,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:49,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:49,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1473 transitions. [2022-04-18 16:32:49,395 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9478764478764479 [2022-04-18 16:32:49,396 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1473 transitions. [2022-04-18 16:32:49,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1473 transitions. [2022-04-18 16:32:49,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:49,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1473 transitions. [2022-04-18 16:32:49,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 491.0) internal successors, (1473), 3 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,405 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,405 INFO L186 Difference]: Start difference. First operand has 470 places, 476 transitions, 962 flow. Second operand 3 states and 1473 transitions. [2022-04-18 16:32:49,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 475 transitions, 994 flow [2022-04-18 16:32:49,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 475 transitions, 990 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:49,414 INFO L242 Difference]: Finished difference. Result has 469 places, 475 transitions, 960 flow [2022-04-18 16:32:49,414 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=960, PETRI_PLACES=469, PETRI_TRANSITIONS=475} [2022-04-18 16:32:49,417 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -8 predicate places. [2022-04-18 16:32:49,447 INFO L478 AbstractCegarLoop]: Abstraction has has 469 places, 475 transitions, 960 flow [2022-04-18 16:32:49,448 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,448 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:49,448 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:49,448 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:32:49,449 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:49,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:49,449 INFO L85 PathProgramCache]: Analyzing trace with hash -834432619, now seen corresponding path program 1 times [2022-04-18 16:32:49,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:49,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028556669] [2022-04-18 16:32:49,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:49,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:49,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:49,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:49,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028556669] [2022-04-18 16:32:49,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028556669] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:49,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:49,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:49,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084962317] [2022-04-18 16:32:49,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:49,525 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:49,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:49,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:49,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:49,533 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 479 out of 518 [2022-04-18 16:32:49,535 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 475 transitions, 960 flow. Second operand has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,535 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:49,535 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 479 of 518 [2022-04-18 16:32:49,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:49,891 INFO L129 PetriNetUnfolder]: 120/1157 cut-off events. [2022-04-18 16:32:49,891 INFO L130 PetriNetUnfolder]: For 15/55 co-relation queries the response was YES. [2022-04-18 16:32:49,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1320 conditions, 1157 events. 120/1157 cut-off events. For 15/55 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5688 event pairs, 60 based on Foata normal form. 0/938 useless extension candidates. Maximal degree in co-relation 1266. Up to 142 conditions per place. [2022-04-18 16:32:49,915 INFO L132 encePairwiseOnDemand]: 515/518 looper letters, 21 selfloop transitions, 2 changer transitions 0/474 dead transitions. [2022-04-18 16:32:49,916 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 474 transitions, 1004 flow [2022-04-18 16:32:49,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:49,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:49,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1461 transitions. [2022-04-18 16:32:49,919 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9401544401544402 [2022-04-18 16:32:49,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1461 transitions. [2022-04-18 16:32:49,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1461 transitions. [2022-04-18 16:32:49,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:49,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1461 transitions. [2022-04-18 16:32:49,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 487.0) internal successors, (1461), 3 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,931 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,931 INFO L186 Difference]: Start difference. First operand has 469 places, 475 transitions, 960 flow. Second operand 3 states and 1461 transitions. [2022-04-18 16:32:49,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 474 transitions, 1004 flow [2022-04-18 16:32:49,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 474 transitions, 1000 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:49,940 INFO L242 Difference]: Finished difference. Result has 468 places, 474 transitions, 958 flow [2022-04-18 16:32:49,943 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=954, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=958, PETRI_PLACES=468, PETRI_TRANSITIONS=474} [2022-04-18 16:32:49,944 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -9 predicate places. [2022-04-18 16:32:49,944 INFO L478 AbstractCegarLoop]: Abstraction has has 468 places, 474 transitions, 958 flow [2022-04-18 16:32:49,945 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,945 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:49,945 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:49,946 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:32:49,946 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:49,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:49,948 INFO L85 PathProgramCache]: Analyzing trace with hash -487846631, now seen corresponding path program 1 times [2022-04-18 16:32:49,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:49,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816974166] [2022-04-18 16:32:49,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:49,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:50,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:50,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:50,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816974166] [2022-04-18 16:32:50,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816974166] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:50,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:50,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:50,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782584956] [2022-04-18 16:32:50,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:50,030 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:50,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:50,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:50,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:50,033 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 518 [2022-04-18 16:32:50,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 474 transitions, 958 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:50,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 518 [2022-04-18 16:32:50,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:50,298 INFO L129 PetriNetUnfolder]: 61/1127 cut-off events. [2022-04-18 16:32:50,298 INFO L130 PetriNetUnfolder]: For 9/81 co-relation queries the response was YES. [2022-04-18 16:32:50,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1200 conditions, 1127 events. 61/1127 cut-off events. For 9/81 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5632 event pairs, 21 based on Foata normal form. 0/945 useless extension candidates. Maximal degree in co-relation 1139. Up to 58 conditions per place. [2022-04-18 16:32:50,317 INFO L132 encePairwiseOnDemand]: 515/518 looper letters, 15 selfloop transitions, 2 changer transitions 0/473 dead transitions. [2022-04-18 16:32:50,317 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 473 transitions, 990 flow [2022-04-18 16:32:50,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:50,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:50,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1473 transitions. [2022-04-18 16:32:50,321 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9478764478764479 [2022-04-18 16:32:50,321 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1473 transitions. [2022-04-18 16:32:50,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1473 transitions. [2022-04-18 16:32:50,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:50,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1473 transitions. [2022-04-18 16:32:50,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 491.0) internal successors, (1473), 3 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,330 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,330 INFO L186 Difference]: Start difference. First operand has 468 places, 474 transitions, 958 flow. Second operand 3 states and 1473 transitions. [2022-04-18 16:32:50,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 473 transitions, 990 flow [2022-04-18 16:32:50,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 473 transitions, 986 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:50,339 INFO L242 Difference]: Finished difference. Result has 467 places, 473 transitions, 956 flow [2022-04-18 16:32:50,339 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=956, PETRI_PLACES=467, PETRI_TRANSITIONS=473} [2022-04-18 16:32:50,342 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -10 predicate places. [2022-04-18 16:32:50,342 INFO L478 AbstractCegarLoop]: Abstraction has has 467 places, 473 transitions, 956 flow [2022-04-18 16:32:50,343 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,343 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:50,343 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:50,343 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:32:50,344 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:50,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:50,344 INFO L85 PathProgramCache]: Analyzing trace with hash -644379327, now seen corresponding path program 1 times [2022-04-18 16:32:50,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:50,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693971939] [2022-04-18 16:32:50,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:50,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:50,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:50,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:50,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693971939] [2022-04-18 16:32:50,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693971939] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:50,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:50,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:50,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496794319] [2022-04-18 16:32:50,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:50,415 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:50,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:50,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:50,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:50,419 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 518 [2022-04-18 16:32:50,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 473 transitions, 956 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:50,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 518 [2022-04-18 16:32:50,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:50,640 INFO L129 PetriNetUnfolder]: 61/1111 cut-off events. [2022-04-18 16:32:50,641 INFO L130 PetriNetUnfolder]: For 9/81 co-relation queries the response was YES. [2022-04-18 16:32:50,660 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1184 conditions, 1111 events. 61/1111 cut-off events. For 9/81 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5470 event pairs, 21 based on Foata normal form. 0/933 useless extension candidates. Maximal degree in co-relation 1116. Up to 58 conditions per place. [2022-04-18 16:32:50,668 INFO L132 encePairwiseOnDemand]: 515/518 looper letters, 15 selfloop transitions, 2 changer transitions 0/472 dead transitions. [2022-04-18 16:32:50,668 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 472 transitions, 988 flow [2022-04-18 16:32:50,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:50,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:50,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1473 transitions. [2022-04-18 16:32:50,671 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9478764478764479 [2022-04-18 16:32:50,671 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1473 transitions. [2022-04-18 16:32:50,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1473 transitions. [2022-04-18 16:32:50,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:50,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1473 transitions. [2022-04-18 16:32:50,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 491.0) internal successors, (1473), 3 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,679 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,679 INFO L186 Difference]: Start difference. First operand has 467 places, 473 transitions, 956 flow. Second operand 3 states and 1473 transitions. [2022-04-18 16:32:50,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 472 transitions, 988 flow [2022-04-18 16:32:50,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 472 transitions, 984 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:50,688 INFO L242 Difference]: Finished difference. Result has 466 places, 472 transitions, 954 flow [2022-04-18 16:32:50,689 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=954, PETRI_PLACES=466, PETRI_TRANSITIONS=472} [2022-04-18 16:32:50,691 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -11 predicate places. [2022-04-18 16:32:50,691 INFO L478 AbstractCegarLoop]: Abstraction has has 466 places, 472 transitions, 954 flow [2022-04-18 16:32:50,693 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,693 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:50,693 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:50,693 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:32:50,693 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:50,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:50,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1479220812, now seen corresponding path program 1 times [2022-04-18 16:32:50,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:50,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044498645] [2022-04-18 16:32:50,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:50,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:50,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:50,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:50,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044498645] [2022-04-18 16:32:50,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044498645] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:50,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:50,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:50,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101092283] [2022-04-18 16:32:50,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:50,732 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:50,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:50,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:50,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:50,735 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 479 out of 518 [2022-04-18 16:32:50,737 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 472 transitions, 954 flow. Second operand has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,737 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:50,737 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 479 of 518 [2022-04-18 16:32:50,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:51,048 INFO L129 PetriNetUnfolder]: 206/1493 cut-off events. [2022-04-18 16:32:51,048 INFO L130 PetriNetUnfolder]: For 58/69 co-relation queries the response was YES. [2022-04-18 16:32:51,067 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1759 conditions, 1493 events. 206/1493 cut-off events. For 58/69 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 9439 event pairs, 132 based on Foata normal form. 0/1232 useless extension candidates. Maximal degree in co-relation 1684. Up to 251 conditions per place. [2022-04-18 16:32:51,078 INFO L132 encePairwiseOnDemand]: 515/518 looper letters, 21 selfloop transitions, 2 changer transitions 0/471 dead transitions. [2022-04-18 16:32:51,079 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 471 transitions, 998 flow [2022-04-18 16:32:51,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:51,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:51,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1461 transitions. [2022-04-18 16:32:51,083 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9401544401544402 [2022-04-18 16:32:51,083 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1461 transitions. [2022-04-18 16:32:51,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1461 transitions. [2022-04-18 16:32:51,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:51,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1461 transitions. [2022-04-18 16:32:51,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 487.0) internal successors, (1461), 3 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,090 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,090 INFO L186 Difference]: Start difference. First operand has 466 places, 472 transitions, 954 flow. Second operand 3 states and 1461 transitions. [2022-04-18 16:32:51,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 471 transitions, 998 flow [2022-04-18 16:32:51,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 471 transitions, 994 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:51,098 INFO L242 Difference]: Finished difference. Result has 465 places, 471 transitions, 952 flow [2022-04-18 16:32:51,099 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=948, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=952, PETRI_PLACES=465, PETRI_TRANSITIONS=471} [2022-04-18 16:32:51,100 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -12 predicate places. [2022-04-18 16:32:51,101 INFO L478 AbstractCegarLoop]: Abstraction has has 465 places, 471 transitions, 952 flow [2022-04-18 16:32:51,101 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 480.3333333333333) internal successors, (1441), 3 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,101 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:51,102 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:51,102 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:32:51,105 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:51,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:51,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1910044326, now seen corresponding path program 1 times [2022-04-18 16:32:51,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:51,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470412760] [2022-04-18 16:32:51,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:51,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:51,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:51,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:51,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470412760] [2022-04-18 16:32:51,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470412760] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:51,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:51,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:51,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424698303] [2022-04-18 16:32:51,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:51,169 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:51,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:51,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:51,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:51,171 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 518 [2022-04-18 16:32:51,173 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 471 transitions, 952 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,173 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:51,173 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 518 [2022-04-18 16:32:51,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:51,435 INFO L129 PetriNetUnfolder]: 95/1347 cut-off events. [2022-04-18 16:32:51,435 INFO L130 PetriNetUnfolder]: For 21/47 co-relation queries the response was YES. [2022-04-18 16:32:51,455 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1444 conditions, 1347 events. 95/1347 cut-off events. For 21/47 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6787 event pairs, 39 based on Foata normal form. 0/1113 useless extension candidates. Maximal degree in co-relation 1362. Up to 85 conditions per place. [2022-04-18 16:32:51,464 INFO L132 encePairwiseOnDemand]: 515/518 looper letters, 15 selfloop transitions, 2 changer transitions 0/470 dead transitions. [2022-04-18 16:32:51,464 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 470 transitions, 984 flow [2022-04-18 16:32:51,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:51,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:51,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1473 transitions. [2022-04-18 16:32:51,468 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9478764478764479 [2022-04-18 16:32:51,468 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1473 transitions. [2022-04-18 16:32:51,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1473 transitions. [2022-04-18 16:32:51,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:51,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1473 transitions. [2022-04-18 16:32:51,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 491.0) internal successors, (1473), 3 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,489 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,489 INFO L186 Difference]: Start difference. First operand has 465 places, 471 transitions, 952 flow. Second operand 3 states and 1473 transitions. [2022-04-18 16:32:51,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 470 transitions, 984 flow [2022-04-18 16:32:51,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 470 transitions, 980 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:51,498 INFO L242 Difference]: Finished difference. Result has 464 places, 470 transitions, 950 flow [2022-04-18 16:32:51,499 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=950, PETRI_PLACES=464, PETRI_TRANSITIONS=470} [2022-04-18 16:32:51,501 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -13 predicate places. [2022-04-18 16:32:51,501 INFO L478 AbstractCegarLoop]: Abstraction has has 464 places, 470 transitions, 950 flow [2022-04-18 16:32:51,501 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,502 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:51,502 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:51,502 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:32:51,502 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:51,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:51,503 INFO L85 PathProgramCache]: Analyzing trace with hash -325757146, now seen corresponding path program 1 times [2022-04-18 16:32:51,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:51,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688471210] [2022-04-18 16:32:51,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:51,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:51,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:51,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:51,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688471210] [2022-04-18 16:32:51,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688471210] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:51,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:51,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:51,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907425489] [2022-04-18 16:32:51,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:51,557 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:51,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:51,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:51,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:51,560 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 518 [2022-04-18 16:32:51,561 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 470 transitions, 950 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:51,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 518 [2022-04-18 16:32:51,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:51,836 INFO L129 PetriNetUnfolder]: 95/1316 cut-off events. [2022-04-18 16:32:51,837 INFO L130 PetriNetUnfolder]: For 21/38 co-relation queries the response was YES. [2022-04-18 16:32:51,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1413 conditions, 1316 events. 95/1316 cut-off events. For 21/38 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6590 event pairs, 39 based on Foata normal form. 0/1102 useless extension candidates. Maximal degree in co-relation 1324. Up to 85 conditions per place. [2022-04-18 16:32:51,868 INFO L132 encePairwiseOnDemand]: 515/518 looper letters, 15 selfloop transitions, 2 changer transitions 0/469 dead transitions. [2022-04-18 16:32:51,868 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 469 transitions, 982 flow [2022-04-18 16:32:51,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:51,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:51,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1473 transitions. [2022-04-18 16:32:51,873 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9478764478764479 [2022-04-18 16:32:51,873 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1473 transitions. [2022-04-18 16:32:51,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1473 transitions. [2022-04-18 16:32:51,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:51,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1473 transitions. [2022-04-18 16:32:51,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 491.0) internal successors, (1473), 3 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,881 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,881 INFO L186 Difference]: Start difference. First operand has 464 places, 470 transitions, 950 flow. Second operand 3 states and 1473 transitions. [2022-04-18 16:32:51,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 469 transitions, 982 flow [2022-04-18 16:32:51,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 469 transitions, 978 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:51,889 INFO L242 Difference]: Finished difference. Result has 463 places, 469 transitions, 948 flow [2022-04-18 16:32:51,890 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=948, PETRI_PLACES=463, PETRI_TRANSITIONS=469} [2022-04-18 16:32:51,891 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -14 predicate places. [2022-04-18 16:32:51,892 INFO L478 AbstractCegarLoop]: Abstraction has has 463 places, 469 transitions, 948 flow [2022-04-18 16:32:51,892 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,892 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:51,893 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:51,893 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:32:51,893 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:51,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:51,894 INFO L85 PathProgramCache]: Analyzing trace with hash -163203913, now seen corresponding path program 1 times [2022-04-18 16:32:51,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:51,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390389203] [2022-04-18 16:32:51,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:51,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:51,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:51,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:51,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390389203] [2022-04-18 16:32:51,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390389203] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:51,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:51,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:51,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858641305] [2022-04-18 16:32:51,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:51,950 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:51,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:51,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:51,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:51,954 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 518 [2022-04-18 16:32:51,956 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 469 transitions, 948 flow. Second operand has 3 states, 3 states have (on average 489.6666666666667) internal successors, (1469), 3 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,956 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:51,956 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 518 [2022-04-18 16:32:51,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:52,208 INFO L129 PetriNetUnfolder]: 64/1311 cut-off events. [2022-04-18 16:32:52,209 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-04-18 16:32:52,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1377 conditions, 1311 events. 64/1311 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6853 event pairs, 6 based on Foata normal form. 0/1117 useless extension candidates. Maximal degree in co-relation 1280. Up to 43 conditions per place. [2022-04-18 16:32:52,241 INFO L132 encePairwiseOnDemand]: 514/518 looper letters, 14 selfloop transitions, 2 changer transitions 0/471 dead transitions. [2022-04-18 16:32:52,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 471 transitions, 986 flow [2022-04-18 16:32:52,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:52,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:52,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1482 transitions. [2022-04-18 16:32:52,246 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9536679536679536 [2022-04-18 16:32:52,246 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1482 transitions. [2022-04-18 16:32:52,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1482 transitions. [2022-04-18 16:32:52,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:52,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1482 transitions. [2022-04-18 16:32:52,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,255 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,255 INFO L186 Difference]: Start difference. First operand has 463 places, 469 transitions, 948 flow. Second operand 3 states and 1482 transitions. [2022-04-18 16:32:52,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 471 transitions, 986 flow [2022-04-18 16:32:52,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 471 transitions, 982 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:52,266 INFO L242 Difference]: Finished difference. Result has 462 places, 469 transitions, 954 flow [2022-04-18 16:32:52,268 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=940, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=954, PETRI_PLACES=462, PETRI_TRANSITIONS=469} [2022-04-18 16:32:52,269 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -15 predicate places. [2022-04-18 16:32:52,269 INFO L478 AbstractCegarLoop]: Abstraction has has 462 places, 469 transitions, 954 flow [2022-04-18 16:32:52,269 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 489.6666666666667) internal successors, (1469), 3 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,270 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:52,270 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:52,270 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:32:52,270 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:52,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:52,271 INFO L85 PathProgramCache]: Analyzing trace with hash 2074867289, now seen corresponding path program 1 times [2022-04-18 16:32:52,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:52,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637669189] [2022-04-18 16:32:52,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:52,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:52,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:52,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:52,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637669189] [2022-04-18 16:32:52,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637669189] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:52,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:52,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:52,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309381691] [2022-04-18 16:32:52,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:52,311 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:52,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:52,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:52,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:52,314 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 518 [2022-04-18 16:32:52,315 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 469 transitions, 954 flow. Second operand has 3 states, 3 states have (on average 489.6666666666667) internal successors, (1469), 3 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,315 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:52,315 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 518 [2022-04-18 16:32:52,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:52,552 INFO L129 PetriNetUnfolder]: 79/1588 cut-off events. [2022-04-18 16:32:52,553 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-04-18 16:32:52,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1666 conditions, 1588 events. 79/1588 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 9527 event pairs, 6 based on Foata normal form. 0/1360 useless extension candidates. Maximal degree in co-relation 1346. Up to 49 conditions per place. [2022-04-18 16:32:52,581 INFO L132 encePairwiseOnDemand]: 514/518 looper letters, 14 selfloop transitions, 2 changer transitions 0/471 dead transitions. [2022-04-18 16:32:52,582 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 471 transitions, 992 flow [2022-04-18 16:32:52,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:52,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:52,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1482 transitions. [2022-04-18 16:32:52,586 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9536679536679536 [2022-04-18 16:32:52,587 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1482 transitions. [2022-04-18 16:32:52,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1482 transitions. [2022-04-18 16:32:52,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:52,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1482 transitions. [2022-04-18 16:32:52,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,593 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,593 INFO L186 Difference]: Start difference. First operand has 462 places, 469 transitions, 954 flow. Second operand 3 states and 1482 transitions. [2022-04-18 16:32:52,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 471 transitions, 992 flow [2022-04-18 16:32:52,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 471 transitions, 992 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:52,601 INFO L242 Difference]: Finished difference. Result has 463 places, 469 transitions, 964 flow [2022-04-18 16:32:52,602 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=964, PETRI_PLACES=463, PETRI_TRANSITIONS=469} [2022-04-18 16:32:52,602 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -14 predicate places. [2022-04-18 16:32:52,602 INFO L478 AbstractCegarLoop]: Abstraction has has 463 places, 469 transitions, 964 flow [2022-04-18 16:32:52,603 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 489.6666666666667) internal successors, (1469), 3 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,603 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:52,603 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:52,603 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:32:52,604 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:52,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:52,604 INFO L85 PathProgramCache]: Analyzing trace with hash 203768859, now seen corresponding path program 1 times [2022-04-18 16:32:52,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:52,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107540903] [2022-04-18 16:32:52,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:52,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:52,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:52,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:52,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107540903] [2022-04-18 16:32:52,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107540903] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:52,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:52,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:52,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910604589] [2022-04-18 16:32:52,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:52,651 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:52,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:52,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:52,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:52,655 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 518 [2022-04-18 16:32:52,656 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 469 transitions, 964 flow. Second operand has 3 states, 3 states have (on average 490.3333333333333) internal successors, (1471), 3 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,656 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:52,656 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 518 [2022-04-18 16:32:52,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:52,864 INFO L129 PetriNetUnfolder]: 54/1100 cut-off events. [2022-04-18 16:32:52,864 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 16:32:52,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1161 conditions, 1100 events. 54/1100 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5634 event pairs, 4 based on Foata normal form. 0/947 useless extension candidates. Maximal degree in co-relation 948. Up to 31 conditions per place. [2022-04-18 16:32:52,896 INFO L132 encePairwiseOnDemand]: 514/518 looper letters, 14 selfloop transitions, 2 changer transitions 0/471 dead transitions. [2022-04-18 16:32:52,896 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 471 transitions, 1002 flow [2022-04-18 16:32:52,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:52,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:52,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1482 transitions. [2022-04-18 16:32:52,900 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9536679536679536 [2022-04-18 16:32:52,900 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1482 transitions. [2022-04-18 16:32:52,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1482 transitions. [2022-04-18 16:32:52,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:52,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1482 transitions. [2022-04-18 16:32:52,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,906 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,907 INFO L186 Difference]: Start difference. First operand has 463 places, 469 transitions, 964 flow. Second operand 3 states and 1482 transitions. [2022-04-18 16:32:52,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 471 transitions, 1002 flow [2022-04-18 16:32:52,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 471 transitions, 1002 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:52,915 INFO L242 Difference]: Finished difference. Result has 464 places, 469 transitions, 974 flow [2022-04-18 16:32:52,916 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=960, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=974, PETRI_PLACES=464, PETRI_TRANSITIONS=469} [2022-04-18 16:32:52,917 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -13 predicate places. [2022-04-18 16:32:52,917 INFO L478 AbstractCegarLoop]: Abstraction has has 464 places, 469 transitions, 974 flow [2022-04-18 16:32:52,918 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 490.3333333333333) internal successors, (1471), 3 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,918 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:52,918 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:52,918 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:32:52,919 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:52,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:52,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1746577475, now seen corresponding path program 1 times [2022-04-18 16:32:52,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:52,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493217531] [2022-04-18 16:32:52,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:52,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:52,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:52,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493217531] [2022-04-18 16:32:52,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493217531] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:52,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:52,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:52,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903366389] [2022-04-18 16:32:52,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:52,955 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:52,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:52,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:52,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:52,957 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 518 [2022-04-18 16:32:52,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 469 transitions, 974 flow. Second operand has 3 states, 3 states have (on average 490.3333333333333) internal successors, (1471), 3 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,959 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:52,959 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 518 [2022-04-18 16:32:52,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:53,189 INFO L129 PetriNetUnfolder]: 59/1172 cut-off events. [2022-04-18 16:32:53,190 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-04-18 16:32:53,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1244 conditions, 1172 events. 59/1172 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6175 event pairs, 4 based on Foata normal form. 0/1013 useless extension candidates. Maximal degree in co-relation 1030. Up to 35 conditions per place. [2022-04-18 16:32:53,225 INFO L132 encePairwiseOnDemand]: 514/518 looper letters, 14 selfloop transitions, 2 changer transitions 0/471 dead transitions. [2022-04-18 16:32:53,225 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 471 transitions, 1012 flow [2022-04-18 16:32:53,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:53,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:53,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1482 transitions. [2022-04-18 16:32:53,229 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9536679536679536 [2022-04-18 16:32:53,229 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1482 transitions. [2022-04-18 16:32:53,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1482 transitions. [2022-04-18 16:32:53,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:53,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1482 transitions. [2022-04-18 16:32:53,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,236 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,236 INFO L186 Difference]: Start difference. First operand has 464 places, 469 transitions, 974 flow. Second operand 3 states and 1482 transitions. [2022-04-18 16:32:53,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 471 transitions, 1012 flow [2022-04-18 16:32:53,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 471 transitions, 1012 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:53,245 INFO L242 Difference]: Finished difference. Result has 465 places, 469 transitions, 984 flow [2022-04-18 16:32:53,246 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=970, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=984, PETRI_PLACES=465, PETRI_TRANSITIONS=469} [2022-04-18 16:32:53,247 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -12 predicate places. [2022-04-18 16:32:53,247 INFO L478 AbstractCegarLoop]: Abstraction has has 465 places, 469 transitions, 984 flow [2022-04-18 16:32:53,247 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 490.3333333333333) internal successors, (1471), 3 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,248 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:53,248 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:53,248 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:32:53,248 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:53,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:53,249 INFO L85 PathProgramCache]: Analyzing trace with hash -642981666, now seen corresponding path program 1 times [2022-04-18 16:32:53,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:53,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529773390] [2022-04-18 16:32:53,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:53,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:53,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:53,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529773390] [2022-04-18 16:32:53,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529773390] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:53,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:53,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:32:53,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144841813] [2022-04-18 16:32:53,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:53,382 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:32:53,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:53,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:32:53,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:32:53,385 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 518 [2022-04-18 16:32:53,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 469 transitions, 984 flow. Second operand has 6 states, 6 states have (on average 475.0) internal successors, (2850), 6 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:53,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 518 [2022-04-18 16:32:53,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:53,625 INFO L129 PetriNetUnfolder]: 32/840 cut-off events. [2022-04-18 16:32:53,625 INFO L130 PetriNetUnfolder]: For 3/23 co-relation queries the response was YES. [2022-04-18 16:32:53,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 932 conditions, 840 events. 32/840 cut-off events. For 3/23 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3526 event pairs, 0 based on Foata normal form. 12/747 useless extension candidates. Maximal degree in co-relation 716. Up to 45 conditions per place. [2022-04-18 16:32:53,640 INFO L132 encePairwiseOnDemand]: 513/518 looper letters, 23 selfloop transitions, 4 changer transitions 0/468 dead transitions. [2022-04-18 16:32:53,641 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 468 transitions, 1036 flow [2022-04-18 16:32:53,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:32:53,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:32:53,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2866 transitions. [2022-04-18 16:32:53,647 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9221364221364221 [2022-04-18 16:32:53,647 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2866 transitions. [2022-04-18 16:32:53,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2866 transitions. [2022-04-18 16:32:53,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:53,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2866 transitions. [2022-04-18 16:32:53,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 477.6666666666667) internal successors, (2866), 6 states have internal predecessors, (2866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 518.0) internal successors, (3626), 7 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,660 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 518.0) internal successors, (3626), 7 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,660 INFO L186 Difference]: Start difference. First operand has 465 places, 469 transitions, 984 flow. Second operand 6 states and 2866 transitions. [2022-04-18 16:32:53,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 468 transitions, 1036 flow [2022-04-18 16:32:53,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 468 transitions, 1036 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:53,668 INFO L242 Difference]: Finished difference. Result has 469 places, 468 transitions, 990 flow [2022-04-18 16:32:53,669 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=982, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=990, PETRI_PLACES=469, PETRI_TRANSITIONS=468} [2022-04-18 16:32:53,669 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -8 predicate places. [2022-04-18 16:32:53,669 INFO L478 AbstractCegarLoop]: Abstraction has has 469 places, 468 transitions, 990 flow [2022-04-18 16:32:53,670 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 475.0) internal successors, (2850), 6 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,670 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:53,670 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:53,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:32:53,671 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:53,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:53,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1702298156, now seen corresponding path program 1 times [2022-04-18 16:32:53,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:53,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590575248] [2022-04-18 16:32:53,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:53,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:53,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:53,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:53,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590575248] [2022-04-18 16:32:53,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590575248] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:53,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:53,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:53,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160631984] [2022-04-18 16:32:53,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:53,712 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:53,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:53,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:53,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:53,715 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 518 [2022-04-18 16:32:53,716 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 468 transitions, 990 flow. Second operand has 3 states, 3 states have (on average 490.0) internal successors, (1470), 3 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,716 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:53,716 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 518 [2022-04-18 16:32:53,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:54,073 INFO L129 PetriNetUnfolder]: 144/2247 cut-off events. [2022-04-18 16:32:54,074 INFO L130 PetriNetUnfolder]: For 21/25 co-relation queries the response was YES. [2022-04-18 16:32:54,104 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2383 conditions, 2247 events. 144/2247 cut-off events. For 21/25 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 14528 event pairs, 18 based on Foata normal form. 0/1896 useless extension candidates. Maximal degree in co-relation 2014. Up to 80 conditions per place. [2022-04-18 16:32:54,115 INFO L132 encePairwiseOnDemand]: 514/518 looper letters, 14 selfloop transitions, 2 changer transitions 0/470 dead transitions. [2022-04-18 16:32:54,115 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 470 transitions, 1028 flow [2022-04-18 16:32:54,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:54,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:54,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1482 transitions. [2022-04-18 16:32:54,119 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9536679536679536 [2022-04-18 16:32:54,119 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1482 transitions. [2022-04-18 16:32:54,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1482 transitions. [2022-04-18 16:32:54,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:54,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1482 transitions. [2022-04-18 16:32:54,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,126 INFO L186 Difference]: Start difference. First operand has 469 places, 468 transitions, 990 flow. Second operand 3 states and 1482 transitions. [2022-04-18 16:32:54,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 470 transitions, 1028 flow [2022-04-18 16:32:54,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 470 transitions, 1021 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:32:54,134 INFO L242 Difference]: Finished difference. Result has 466 places, 468 transitions, 993 flow [2022-04-18 16:32:54,135 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=979, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=993, PETRI_PLACES=466, PETRI_TRANSITIONS=468} [2022-04-18 16:32:54,136 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -11 predicate places. [2022-04-18 16:32:54,136 INFO L478 AbstractCegarLoop]: Abstraction has has 466 places, 468 transitions, 993 flow [2022-04-18 16:32:54,137 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 490.0) internal successors, (1470), 3 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,137 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:54,137 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:54,137 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:32:54,137 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:54,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:54,138 INFO L85 PathProgramCache]: Analyzing trace with hash 474054134, now seen corresponding path program 1 times [2022-04-18 16:32:54,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:54,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713872211] [2022-04-18 16:32:54,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:54,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:54,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:54,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:54,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713872211] [2022-04-18 16:32:54,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713872211] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:54,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:54,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:54,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637661748] [2022-04-18 16:32:54,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:54,170 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:54,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:54,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:54,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:54,172 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 518 [2022-04-18 16:32:54,174 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 468 transitions, 993 flow. Second operand has 3 states, 3 states have (on average 490.0) internal successors, (1470), 3 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:54,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 518 [2022-04-18 16:32:54,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:54,624 INFO L129 PetriNetUnfolder]: 165/2437 cut-off events. [2022-04-18 16:32:54,624 INFO L130 PetriNetUnfolder]: For 23/27 co-relation queries the response was YES. [2022-04-18 16:32:54,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2594 conditions, 2437 events. 165/2437 cut-off events. For 23/27 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 16415 event pairs, 10 based on Foata normal form. 0/2063 useless extension candidates. Maximal degree in co-relation 2237. Up to 90 conditions per place. [2022-04-18 16:32:54,653 INFO L132 encePairwiseOnDemand]: 514/518 looper letters, 14 selfloop transitions, 2 changer transitions 0/470 dead transitions. [2022-04-18 16:32:54,653 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 470 transitions, 1031 flow [2022-04-18 16:32:54,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:54,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:54,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1482 transitions. [2022-04-18 16:32:54,657 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9536679536679536 [2022-04-18 16:32:54,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1482 transitions. [2022-04-18 16:32:54,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1482 transitions. [2022-04-18 16:32:54,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:54,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1482 transitions. [2022-04-18 16:32:54,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,664 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,664 INFO L186 Difference]: Start difference. First operand has 466 places, 468 transitions, 993 flow. Second operand 3 states and 1482 transitions. [2022-04-18 16:32:54,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 470 transitions, 1031 flow [2022-04-18 16:32:54,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 470 transitions, 1031 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:54,672 INFO L242 Difference]: Finished difference. Result has 467 places, 468 transitions, 1003 flow [2022-04-18 16:32:54,672 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=989, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1003, PETRI_PLACES=467, PETRI_TRANSITIONS=468} [2022-04-18 16:32:54,673 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -10 predicate places. [2022-04-18 16:32:54,673 INFO L478 AbstractCegarLoop]: Abstraction has has 467 places, 468 transitions, 1003 flow [2022-04-18 16:32:54,674 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 490.0) internal successors, (1470), 3 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,674 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:54,674 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:54,674 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:32:54,674 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:54,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:54,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1726249957, now seen corresponding path program 1 times [2022-04-18 16:32:54,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:54,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911488333] [2022-04-18 16:32:54,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:54,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:54,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:54,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:54,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911488333] [2022-04-18 16:32:54,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911488333] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:54,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:54,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:54,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620651239] [2022-04-18 16:32:54,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:54,707 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:54,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:54,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:54,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:54,709 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 482 out of 518 [2022-04-18 16:32:54,710 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 468 transitions, 1003 flow. Second operand has 3 states, 3 states have (on average 483.6666666666667) internal successors, (1451), 3 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,710 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:54,710 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 482 of 518 [2022-04-18 16:32:54,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:55,090 INFO L129 PetriNetUnfolder]: 286/2424 cut-off events. [2022-04-18 16:32:55,091 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-04-18 16:32:55,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2778 conditions, 2424 events. 286/2424 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 18168 event pairs, 60 based on Foata normal form. 0/2043 useless extension candidates. Maximal degree in co-relation 2357. Up to 239 conditions per place. [2022-04-18 16:32:55,144 INFO L132 encePairwiseOnDemand]: 512/518 looper letters, 18 selfloop transitions, 2 changer transitions 0/468 dead transitions. [2022-04-18 16:32:55,145 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 468 transitions, 1045 flow [2022-04-18 16:32:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:55,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:55,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1470 transitions. [2022-04-18 16:32:55,148 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9459459459459459 [2022-04-18 16:32:55,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1470 transitions. [2022-04-18 16:32:55,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1470 transitions. [2022-04-18 16:32:55,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:55,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1470 transitions. [2022-04-18 16:32:55,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 490.0) internal successors, (1470), 3 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,155 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,155 INFO L186 Difference]: Start difference. First operand has 467 places, 468 transitions, 1003 flow. Second operand 3 states and 1470 transitions. [2022-04-18 16:32:55,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 468 transitions, 1045 flow [2022-04-18 16:32:55,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 468 transitions, 1045 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:55,163 INFO L242 Difference]: Finished difference. Result has 466 places, 466 transitions, 1009 flow [2022-04-18 16:32:55,164 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=995, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1009, PETRI_PLACES=466, PETRI_TRANSITIONS=466} [2022-04-18 16:32:55,164 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -11 predicate places. [2022-04-18 16:32:55,165 INFO L478 AbstractCegarLoop]: Abstraction has has 466 places, 466 transitions, 1009 flow [2022-04-18 16:32:55,165 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 483.6666666666667) internal successors, (1451), 3 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,165 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:55,165 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:55,166 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 16:32:55,166 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:55,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:55,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1068792515, now seen corresponding path program 1 times [2022-04-18 16:32:55,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:55,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885255441] [2022-04-18 16:32:55,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:55,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:55,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:55,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:55,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885255441] [2022-04-18 16:32:55,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885255441] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:55,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:55,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:55,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62321164] [2022-04-18 16:32:55,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:55,198 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:55,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:55,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:55,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:55,201 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 482 out of 518 [2022-04-18 16:32:55,202 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 466 transitions, 1009 flow. Second operand has 3 states, 3 states have (on average 483.6666666666667) internal successors, (1451), 3 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:55,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 482 of 518 [2022-04-18 16:32:55,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:55,631 INFO L129 PetriNetUnfolder]: 233/2207 cut-off events. [2022-04-18 16:32:55,631 INFO L130 PetriNetUnfolder]: For 23/47 co-relation queries the response was YES. [2022-04-18 16:32:55,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2504 conditions, 2207 events. 233/2207 cut-off events. For 23/47 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 14886 event pairs, 52 based on Foata normal form. 3/1887 useless extension candidates. Maximal degree in co-relation 2273. Up to 191 conditions per place. [2022-04-18 16:32:55,664 INFO L132 encePairwiseOnDemand]: 512/518 looper letters, 18 selfloop transitions, 2 changer transitions 0/466 dead transitions. [2022-04-18 16:32:55,665 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 466 transitions, 1051 flow [2022-04-18 16:32:55,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:55,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:55,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1470 transitions. [2022-04-18 16:32:55,669 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9459459459459459 [2022-04-18 16:32:55,669 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1470 transitions. [2022-04-18 16:32:55,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1470 transitions. [2022-04-18 16:32:55,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:55,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1470 transitions. [2022-04-18 16:32:55,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 490.0) internal successors, (1470), 3 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,677 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,677 INFO L186 Difference]: Start difference. First operand has 466 places, 466 transitions, 1009 flow. Second operand 3 states and 1470 transitions. [2022-04-18 16:32:55,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 466 transitions, 1051 flow [2022-04-18 16:32:55,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 466 transitions, 1051 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:55,685 INFO L242 Difference]: Finished difference. Result has 465 places, 464 transitions, 1015 flow [2022-04-18 16:32:55,686 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=1001, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1015, PETRI_PLACES=465, PETRI_TRANSITIONS=464} [2022-04-18 16:32:55,686 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -12 predicate places. [2022-04-18 16:32:55,686 INFO L478 AbstractCegarLoop]: Abstraction has has 465 places, 464 transitions, 1015 flow [2022-04-18 16:32:55,687 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 483.6666666666667) internal successors, (1451), 3 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,687 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:55,687 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:55,688 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 16:32:55,688 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:55,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:55,688 INFO L85 PathProgramCache]: Analyzing trace with hash -269376474, now seen corresponding path program 1 times [2022-04-18 16:32:55,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:55,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530589735] [2022-04-18 16:32:55,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:55,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:55,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:55,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:55,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530589735] [2022-04-18 16:32:55,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530589735] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:55,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:55,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:55,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629466393] [2022-04-18 16:32:55,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:55,724 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:55,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:55,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:55,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:55,727 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 489 out of 518 [2022-04-18 16:32:55,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 464 transitions, 1015 flow. Second operand has 3 states, 3 states have (on average 490.3333333333333) internal successors, (1471), 3 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:55,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 489 of 518 [2022-04-18 16:32:55,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:56,065 INFO L129 PetriNetUnfolder]: 105/1591 cut-off events. [2022-04-18 16:32:56,065 INFO L130 PetriNetUnfolder]: For 7/25 co-relation queries the response was YES. [2022-04-18 16:32:56,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1769 conditions, 1591 events. 105/1591 cut-off events. For 7/25 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 9162 event pairs, 4 based on Foata normal form. 3/1406 useless extension candidates. Maximal degree in co-relation 1434. Up to 28 conditions per place. [2022-04-18 16:32:56,103 INFO L132 encePairwiseOnDemand]: 515/518 looper letters, 13 selfloop transitions, 2 changer transitions 0/465 dead transitions. [2022-04-18 16:32:56,104 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 465 transitions, 1049 flow [2022-04-18 16:32:56,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:56,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:56,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1483 transitions. [2022-04-18 16:32:56,107 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9543114543114544 [2022-04-18 16:32:56,108 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1483 transitions. [2022-04-18 16:32:56,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1483 transitions. [2022-04-18 16:32:56,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:56,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1483 transitions. [2022-04-18 16:32:56,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 494.3333333333333) internal successors, (1483), 3 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,115 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,116 INFO L186 Difference]: Start difference. First operand has 465 places, 464 transitions, 1015 flow. Second operand 3 states and 1483 transitions. [2022-04-18 16:32:56,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 465 transitions, 1049 flow [2022-04-18 16:32:56,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 465 transitions, 1049 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:56,125 INFO L242 Difference]: Finished difference. Result has 466 places, 463 transitions, 1017 flow [2022-04-18 16:32:56,125 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=1013, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1017, PETRI_PLACES=466, PETRI_TRANSITIONS=463} [2022-04-18 16:32:56,126 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -11 predicate places. [2022-04-18 16:32:56,126 INFO L478 AbstractCegarLoop]: Abstraction has has 466 places, 463 transitions, 1017 flow [2022-04-18 16:32:56,127 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 490.3333333333333) internal successors, (1471), 3 states have internal predecessors, (1471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,127 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:56,127 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:56,127 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 16:32:56,127 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:56,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:56,128 INFO L85 PathProgramCache]: Analyzing trace with hash -369018328, now seen corresponding path program 1 times [2022-04-18 16:32:56,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:56,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355268955] [2022-04-18 16:32:56,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:56,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:56,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:56,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:56,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355268955] [2022-04-18 16:32:56,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355268955] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:56,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:56,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:56,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185217974] [2022-04-18 16:32:56,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:56,163 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:56,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:56,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:56,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:56,166 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 482 out of 518 [2022-04-18 16:32:56,167 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 463 transitions, 1017 flow. Second operand has 3 states, 3 states have (on average 484.0) internal successors, (1452), 3 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,168 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:56,168 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 482 of 518 [2022-04-18 16:32:56,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:56,758 INFO L129 PetriNetUnfolder]: 408/2915 cut-off events. [2022-04-18 16:32:56,759 INFO L130 PetriNetUnfolder]: For 51/53 co-relation queries the response was YES. [2022-04-18 16:32:56,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3430 conditions, 2915 events. 408/2915 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 21222 event pairs, 76 based on Foata normal form. 0/2541 useless extension candidates. Maximal degree in co-relation 3097. Up to 364 conditions per place. [2022-04-18 16:32:56,820 INFO L132 encePairwiseOnDemand]: 512/518 looper letters, 18 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2022-04-18 16:32:56,820 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 463 transitions, 1059 flow [2022-04-18 16:32:56,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:56,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:56,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1470 transitions. [2022-04-18 16:32:56,824 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9459459459459459 [2022-04-18 16:32:56,824 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1470 transitions. [2022-04-18 16:32:56,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1470 transitions. [2022-04-18 16:32:56,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:56,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1470 transitions. [2022-04-18 16:32:56,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 490.0) internal successors, (1470), 3 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,831 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,831 INFO L186 Difference]: Start difference. First operand has 466 places, 463 transitions, 1017 flow. Second operand 3 states and 1470 transitions. [2022-04-18 16:32:56,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 463 transitions, 1059 flow [2022-04-18 16:32:56,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 463 transitions, 1055 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:56,840 INFO L242 Difference]: Finished difference. Result has 463 places, 461 transitions, 1019 flow [2022-04-18 16:32:56,840 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=1005, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1019, PETRI_PLACES=463, PETRI_TRANSITIONS=461} [2022-04-18 16:32:56,841 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -14 predicate places. [2022-04-18 16:32:56,841 INFO L478 AbstractCegarLoop]: Abstraction has has 463 places, 461 transitions, 1019 flow [2022-04-18 16:32:56,841 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 484.0) internal successors, (1452), 3 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,842 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:56,842 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:56,842 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 16:32:56,842 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:56,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:56,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1834534225, now seen corresponding path program 1 times [2022-04-18 16:32:56,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:56,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412340282] [2022-04-18 16:32:56,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:56,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:56,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:56,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:56,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412340282] [2022-04-18 16:32:56,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412340282] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:56,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:56,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:56,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064709438] [2022-04-18 16:32:56,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:56,876 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:56,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:56,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:56,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:56,879 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 518 [2022-04-18 16:32:56,881 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 461 transitions, 1019 flow. Second operand has 3 states, 3 states have (on average 487.6666666666667) internal successors, (1463), 3 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:56,881 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:56,881 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 518 [2022-04-18 16:32:56,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:57,235 INFO L129 PetriNetUnfolder]: 162/2077 cut-off events. [2022-04-18 16:32:57,236 INFO L130 PetriNetUnfolder]: For 19/31 co-relation queries the response was YES. [2022-04-18 16:32:57,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2392 conditions, 2077 events. 162/2077 cut-off events. For 19/31 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 13395 event pairs, 14 based on Foata normal form. 1/1876 useless extension candidates. Maximal degree in co-relation 1846. Up to 57 conditions per place. [2022-04-18 16:32:57,254 INFO L132 encePairwiseOnDemand]: 515/518 looper letters, 16 selfloop transitions, 2 changer transitions 0/462 dead transitions. [2022-04-18 16:32:57,255 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 462 transitions, 1059 flow [2022-04-18 16:32:57,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:57,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:57,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1477 transitions. [2022-04-18 16:32:57,258 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9504504504504504 [2022-04-18 16:32:57,259 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1477 transitions. [2022-04-18 16:32:57,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1477 transitions. [2022-04-18 16:32:57,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:57,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1477 transitions. [2022-04-18 16:32:57,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 492.3333333333333) internal successors, (1477), 3 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:57,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:57,265 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:57,265 INFO L186 Difference]: Start difference. First operand has 463 places, 461 transitions, 1019 flow. Second operand 3 states and 1477 transitions. [2022-04-18 16:32:57,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 462 transitions, 1059 flow [2022-04-18 16:32:57,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 462 transitions, 1059 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:57,273 INFO L242 Difference]: Finished difference. Result has 464 places, 460 transitions, 1021 flow [2022-04-18 16:32:57,274 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=1017, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1021, PETRI_PLACES=464, PETRI_TRANSITIONS=460} [2022-04-18 16:32:57,274 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -13 predicate places. [2022-04-18 16:32:57,275 INFO L478 AbstractCegarLoop]: Abstraction has has 464 places, 460 transitions, 1021 flow [2022-04-18 16:32:57,275 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 487.6666666666667) internal successors, (1463), 3 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:57,275 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:57,275 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:57,276 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 16:32:57,276 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:57,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:57,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1993569162, now seen corresponding path program 1 times [2022-04-18 16:32:57,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:57,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859045434] [2022-04-18 16:32:57,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:57,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:57,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:57,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:57,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859045434] [2022-04-18 16:32:57,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859045434] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:57,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:57,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:57,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051107802] [2022-04-18 16:32:57,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:57,311 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:57,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:57,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:57,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:57,313 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 518 [2022-04-18 16:32:57,314 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 460 transitions, 1021 flow. Second operand has 3 states, 3 states have (on average 488.0) internal successors, (1464), 3 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:57,314 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:57,314 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 518 [2022-04-18 16:32:57,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:57,577 INFO L129 PetriNetUnfolder]: 137/1683 cut-off events. [2022-04-18 16:32:57,577 INFO L130 PetriNetUnfolder]: For 27/33 co-relation queries the response was YES. [2022-04-18 16:32:57,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1974 conditions, 1683 events. 137/1683 cut-off events. For 27/33 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9530 event pairs, 10 based on Foata normal form. 0/1525 useless extension candidates. Maximal degree in co-relation 1842. Up to 66 conditions per place. [2022-04-18 16:32:57,607 INFO L132 encePairwiseOnDemand]: 515/518 looper letters, 15 selfloop transitions, 2 changer transitions 0/461 dead transitions. [2022-04-18 16:32:57,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 461 transitions, 1059 flow [2022-04-18 16:32:57,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:57,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:57,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1476 transitions. [2022-04-18 16:32:57,611 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9498069498069498 [2022-04-18 16:32:57,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1476 transitions. [2022-04-18 16:32:57,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1476 transitions. [2022-04-18 16:32:57,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:57,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1476 transitions. [2022-04-18 16:32:57,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 492.0) internal successors, (1476), 3 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:57,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:57,617 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:57,617 INFO L186 Difference]: Start difference. First operand has 464 places, 460 transitions, 1021 flow. Second operand 3 states and 1476 transitions. [2022-04-18 16:32:57,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 461 transitions, 1059 flow [2022-04-18 16:32:57,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 461 transitions, 1055 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:57,626 INFO L242 Difference]: Finished difference. Result has 463 places, 459 transitions, 1019 flow [2022-04-18 16:32:57,627 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=1015, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1019, PETRI_PLACES=463, PETRI_TRANSITIONS=459} [2022-04-18 16:32:57,628 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -14 predicate places. [2022-04-18 16:32:57,628 INFO L478 AbstractCegarLoop]: Abstraction has has 463 places, 459 transitions, 1019 flow [2022-04-18 16:32:57,628 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 488.0) internal successors, (1464), 3 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:57,628 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:57,629 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:57,629 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-18 16:32:57,629 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:57,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:57,629 INFO L85 PathProgramCache]: Analyzing trace with hash 575204284, now seen corresponding path program 1 times [2022-04-18 16:32:57,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:57,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706005192] [2022-04-18 16:32:57,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:57,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:57,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:57,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:57,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706005192] [2022-04-18 16:32:57,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706005192] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:57,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:57,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:32:57,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128270907] [2022-04-18 16:32:57,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:57,756 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:32:57,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:57,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:32:57,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:32:57,759 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 518 [2022-04-18 16:32:57,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 459 transitions, 1019 flow. Second operand has 6 states, 6 states have (on average 476.0) internal successors, (2856), 6 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:57,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:57,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 518 [2022-04-18 16:32:57,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:58,074 INFO L129 PetriNetUnfolder]: 117/1570 cut-off events. [2022-04-18 16:32:58,075 INFO L130 PetriNetUnfolder]: For 7/81 co-relation queries the response was YES. [2022-04-18 16:32:58,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1818 conditions, 1570 events. 117/1570 cut-off events. For 7/81 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 8617 event pairs, 0 based on Foata normal form. 16/1443 useless extension candidates. Maximal degree in co-relation 1679. Up to 30 conditions per place. [2022-04-18 16:32:58,103 INFO L132 encePairwiseOnDemand]: 513/518 looper letters, 22 selfloop transitions, 4 changer transitions 0/458 dead transitions. [2022-04-18 16:32:58,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 458 transitions, 1069 flow [2022-04-18 16:32:58,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:32:58,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:32:58,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2865 transitions. [2022-04-18 16:32:58,109 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9218146718146718 [2022-04-18 16:32:58,109 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2865 transitions. [2022-04-18 16:32:58,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2865 transitions. [2022-04-18 16:32:58,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:58,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2865 transitions. [2022-04-18 16:32:58,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 477.5) internal successors, (2865), 6 states have internal predecessors, (2865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:58,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 518.0) internal successors, (3626), 7 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:58,119 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 518.0) internal successors, (3626), 7 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:58,120 INFO L186 Difference]: Start difference. First operand has 463 places, 459 transitions, 1019 flow. Second operand 6 states and 2865 transitions. [2022-04-18 16:32:58,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 458 transitions, 1069 flow [2022-04-18 16:32:58,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 458 transitions, 1065 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:58,129 INFO L242 Difference]: Finished difference. Result has 465 places, 458 transitions, 1021 flow [2022-04-18 16:32:58,130 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=1013, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1021, PETRI_PLACES=465, PETRI_TRANSITIONS=458} [2022-04-18 16:32:58,131 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -12 predicate places. [2022-04-18 16:32:58,131 INFO L478 AbstractCegarLoop]: Abstraction has has 465 places, 458 transitions, 1021 flow [2022-04-18 16:32:58,132 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 476.0) internal successors, (2856), 6 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:58,132 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:58,132 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:58,132 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-18 16:32:58,133 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:58,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:58,133 INFO L85 PathProgramCache]: Analyzing trace with hash -828690288, now seen corresponding path program 1 times [2022-04-18 16:32:58,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:58,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556130364] [2022-04-18 16:32:58,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:58,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:58,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:58,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:58,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556130364] [2022-04-18 16:32:58,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556130364] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:58,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:58,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:32:58,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943570853] [2022-04-18 16:32:58,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:58,241 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:32:58,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:58,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:32:58,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:32:58,244 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 518 [2022-04-18 16:32:58,246 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 458 transitions, 1021 flow. Second operand has 6 states, 6 states have (on average 477.0) internal successors, (2862), 6 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:58,246 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:58,246 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 518 [2022-04-18 16:32:58,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:58,548 INFO L129 PetriNetUnfolder]: 117/1567 cut-off events. [2022-04-18 16:32:58,548 INFO L130 PetriNetUnfolder]: For 10/81 co-relation queries the response was YES. [2022-04-18 16:32:58,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1794 conditions, 1567 events. 117/1567 cut-off events. For 10/81 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 8602 event pairs, 0 based on Foata normal form. 4/1431 useless extension candidates. Maximal degree in co-relation 1670. Up to 36 conditions per place. [2022-04-18 16:32:58,581 INFO L132 encePairwiseOnDemand]: 513/518 looper letters, 21 selfloop transitions, 4 changer transitions 0/457 dead transitions. [2022-04-18 16:32:58,581 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 457 transitions, 1069 flow [2022-04-18 16:32:58,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:32:58,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:32:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2864 transitions. [2022-04-18 16:32:58,587 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9214929214929215 [2022-04-18 16:32:58,587 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2864 transitions. [2022-04-18 16:32:58,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2864 transitions. [2022-04-18 16:32:58,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:58,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2864 transitions. [2022-04-18 16:32:58,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 477.3333333333333) internal successors, (2864), 6 states have internal predecessors, (2864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:58,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 518.0) internal successors, (3626), 7 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:58,596 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 518.0) internal successors, (3626), 7 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:58,596 INFO L186 Difference]: Start difference. First operand has 465 places, 458 transitions, 1021 flow. Second operand 6 states and 2864 transitions. [2022-04-18 16:32:58,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 457 transitions, 1069 flow [2022-04-18 16:32:58,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 457 transitions, 1062 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:32:58,605 INFO L242 Difference]: Finished difference. Result has 465 places, 457 transitions, 1020 flow [2022-04-18 16:32:58,606 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=1012, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1020, PETRI_PLACES=465, PETRI_TRANSITIONS=457} [2022-04-18 16:32:58,607 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -12 predicate places. [2022-04-18 16:32:58,607 INFO L478 AbstractCegarLoop]: Abstraction has has 465 places, 457 transitions, 1020 flow [2022-04-18 16:32:58,607 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 477.0) internal successors, (2862), 6 states have internal predecessors, (2862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:58,608 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:58,608 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:58,608 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-18 16:32:58,608 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:58,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:58,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1880157739, now seen corresponding path program 1 times [2022-04-18 16:32:58,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:58,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436348600] [2022-04-18 16:32:58,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:58,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:58,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:58,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:58,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436348600] [2022-04-18 16:32:58,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436348600] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:58,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:58,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:58,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072731153] [2022-04-18 16:32:58,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:58,678 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:58,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:58,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:58,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:58,680 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 518 [2022-04-18 16:32:58,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 457 transitions, 1020 flow. Second operand has 3 states, 3 states have (on average 494.3333333333333) internal successors, (1483), 3 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:58,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:58,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 518 [2022-04-18 16:32:58,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:58,928 INFO L129 PetriNetUnfolder]: 126/1697 cut-off events. [2022-04-18 16:32:58,928 INFO L130 PetriNetUnfolder]: For 7/21 co-relation queries the response was YES. [2022-04-18 16:32:58,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1917 conditions, 1697 events. 126/1697 cut-off events. For 7/21 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 9766 event pairs, 4 based on Foata normal form. 0/1547 useless extension candidates. Maximal degree in co-relation 1852. Up to 30 conditions per place. [2022-04-18 16:32:58,951 INFO L132 encePairwiseOnDemand]: 516/518 looper letters, 9 selfloop transitions, 1 changer transitions 0/456 dead transitions. [2022-04-18 16:32:58,952 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 456 transitions, 1038 flow [2022-04-18 16:32:58,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:58,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:58,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1484 transitions. [2022-04-18 16:32:58,954 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.954954954954955 [2022-04-18 16:32:58,954 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1484 transitions. [2022-04-18 16:32:58,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1484 transitions. [2022-04-18 16:32:58,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:58,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1484 transitions. [2022-04-18 16:32:58,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 494.6666666666667) internal successors, (1484), 3 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:58,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:58,960 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:58,960 INFO L186 Difference]: Start difference. First operand has 465 places, 457 transitions, 1020 flow. Second operand 3 states and 1484 transitions. [2022-04-18 16:32:58,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 456 transitions, 1038 flow [2022-04-18 16:32:58,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 456 transitions, 1031 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:32:58,968 INFO L242 Difference]: Finished difference. Result has 462 places, 456 transitions, 1013 flow [2022-04-18 16:32:58,969 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=1011, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1013, PETRI_PLACES=462, PETRI_TRANSITIONS=456} [2022-04-18 16:32:58,969 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -15 predicate places. [2022-04-18 16:32:58,969 INFO L478 AbstractCegarLoop]: Abstraction has has 462 places, 456 transitions, 1013 flow [2022-04-18 16:32:58,970 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 494.3333333333333) internal successors, (1483), 3 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:58,970 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:58,970 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:58,970 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-18 16:32:58,970 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:58,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:58,971 INFO L85 PathProgramCache]: Analyzing trace with hash -876144633, now seen corresponding path program 1 times [2022-04-18 16:32:58,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:58,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353669049] [2022-04-18 16:32:58,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:58,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:59,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:59,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:59,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353669049] [2022-04-18 16:32:59,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353669049] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:59,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:59,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:59,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254950752] [2022-04-18 16:32:59,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:59,042 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:59,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:59,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:59,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:59,044 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 518 [2022-04-18 16:32:59,045 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 456 transitions, 1013 flow. Second operand has 3 states, 3 states have (on average 491.3333333333333) internal successors, (1474), 3 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:59,045 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:59,045 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 518 [2022-04-18 16:32:59,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:59,368 INFO L129 PetriNetUnfolder]: 148/2028 cut-off events. [2022-04-18 16:32:59,369 INFO L130 PetriNetUnfolder]: For 13/21 co-relation queries the response was YES. [2022-04-18 16:32:59,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2302 conditions, 2028 events. 148/2028 cut-off events. For 13/21 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 12688 event pairs, 14 based on Foata normal form. 0/1855 useless extension candidates. Maximal degree in co-relation 2266. Up to 51 conditions per place. [2022-04-18 16:32:59,400 INFO L132 encePairwiseOnDemand]: 515/518 looper letters, 11 selfloop transitions, 1 changer transitions 0/454 dead transitions. [2022-04-18 16:32:59,401 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 454 transitions, 1033 flow [2022-04-18 16:32:59,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:59,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:59,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1478 transitions. [2022-04-18 16:32:59,403 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9510939510939511 [2022-04-18 16:32:59,403 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1478 transitions. [2022-04-18 16:32:59,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1478 transitions. [2022-04-18 16:32:59,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:59,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1478 transitions. [2022-04-18 16:32:59,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 492.6666666666667) internal successors, (1478), 3 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:59,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:59,407 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:59,407 INFO L186 Difference]: Start difference. First operand has 462 places, 456 transitions, 1013 flow. Second operand 3 states and 1478 transitions. [2022-04-18 16:32:59,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 454 transitions, 1033 flow [2022-04-18 16:32:59,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 454 transitions, 1032 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:32:59,416 INFO L242 Difference]: Finished difference. Result has 461 places, 454 transitions, 1010 flow [2022-04-18 16:32:59,416 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=1008, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1010, PETRI_PLACES=461, PETRI_TRANSITIONS=454} [2022-04-18 16:32:59,417 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -16 predicate places. [2022-04-18 16:32:59,417 INFO L478 AbstractCegarLoop]: Abstraction has has 461 places, 454 transitions, 1010 flow [2022-04-18 16:32:59,417 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 491.3333333333333) internal successors, (1474), 3 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:59,418 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:59,418 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:59,418 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-18 16:32:59,418 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-04-18 16:32:59,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:59,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1942870235, now seen corresponding path program 1 times [2022-04-18 16:32:59,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:59,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944567327] [2022-04-18 16:32:59,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:59,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:59,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:59,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:59,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944567327] [2022-04-18 16:32:59,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944567327] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:59,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:59,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:59,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676114823] [2022-04-18 16:32:59,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:59,492 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:59,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:59,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:59,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:59,494 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 518 [2022-04-18 16:32:59,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 454 transitions, 1010 flow. Second operand has 3 states, 3 states have (on average 491.3333333333333) internal successors, (1474), 3 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:59,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:59,496 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 518 [2022-04-18 16:32:59,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:59,738 INFO L129 PetriNetUnfolder]: 127/1652 cut-off events. [2022-04-18 16:32:59,738 INFO L130 PetriNetUnfolder]: For 17/23 co-relation queries the response was YES. [2022-04-18 16:32:59,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1892 conditions, 1652 events. 127/1652 cut-off events. For 17/23 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9245 event pairs, 10 based on Foata normal form. 1/1511 useless extension candidates. Maximal degree in co-relation 1867. Up to 61 conditions per place. [2022-04-18 16:32:59,763 INFO L132 encePairwiseOnDemand]: 515/518 looper letters, 0 selfloop transitions, 0 changer transitions 452/452 dead transitions. [2022-04-18 16:32:59,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 452 transitions, 1028 flow [2022-04-18 16:32:59,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:59,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:59,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1477 transitions. [2022-04-18 16:32:59,765 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9504504504504504 [2022-04-18 16:32:59,765 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1477 transitions. [2022-04-18 16:32:59,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1477 transitions. [2022-04-18 16:32:59,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:59,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1477 transitions. [2022-04-18 16:32:59,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 492.3333333333333) internal successors, (1477), 3 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:59,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:59,769 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 518.0) internal successors, (2072), 4 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:59,769 INFO L186 Difference]: Start difference. First operand has 461 places, 454 transitions, 1010 flow. Second operand 3 states and 1477 transitions. [2022-04-18 16:32:59,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 452 transitions, 1028 flow [2022-04-18 16:32:59,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 452 transitions, 1027 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:32:59,774 INFO L242 Difference]: Finished difference. Result has 460 places, 0 transitions, 0 flow [2022-04-18 16:32:59,774 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=518, PETRI_DIFFERENCE_MINUEND_FLOW=1005, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=460, PETRI_TRANSITIONS=0} [2022-04-18 16:32:59,775 INFO L335 CegarLoopForPetriNet]: 477 programPoint places, -17 predicate places. [2022-04-18 16:32:59,775 INFO L478 AbstractCegarLoop]: Abstraction has has 460 places, 0 transitions, 0 flow [2022-04-18 16:32:59,775 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 491.3333333333333) internal successors, (1474), 3 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:59,777 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (73 of 74 remaining) [2022-04-18 16:32:59,778 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (72 of 74 remaining) [2022-04-18 16:32:59,778 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (71 of 74 remaining) [2022-04-18 16:32:59,778 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (70 of 74 remaining) [2022-04-18 16:32:59,778 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (69 of 74 remaining) [2022-04-18 16:32:59,779 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (68 of 74 remaining) [2022-04-18 16:32:59,779 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (67 of 74 remaining) [2022-04-18 16:32:59,779 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (66 of 74 remaining) [2022-04-18 16:32:59,781 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (65 of 74 remaining) [2022-04-18 16:32:59,782 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (64 of 74 remaining) [2022-04-18 16:32:59,782 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (63 of 74 remaining) [2022-04-18 16:32:59,782 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (62 of 74 remaining) [2022-04-18 16:32:59,782 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (61 of 74 remaining) [2022-04-18 16:32:59,782 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (60 of 74 remaining) [2022-04-18 16:32:59,782 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (59 of 74 remaining) [2022-04-18 16:32:59,783 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (58 of 74 remaining) [2022-04-18 16:32:59,783 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (57 of 74 remaining) [2022-04-18 16:32:59,783 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (56 of 74 remaining) [2022-04-18 16:32:59,783 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (55 of 74 remaining) [2022-04-18 16:32:59,783 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (54 of 74 remaining) [2022-04-18 16:32:59,784 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (53 of 74 remaining) [2022-04-18 16:32:59,784 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (52 of 74 remaining) [2022-04-18 16:32:59,784 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (51 of 74 remaining) [2022-04-18 16:32:59,784 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (50 of 74 remaining) [2022-04-18 16:32:59,784 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (49 of 74 remaining) [2022-04-18 16:32:59,784 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (48 of 74 remaining) [2022-04-18 16:32:59,785 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (47 of 74 remaining) [2022-04-18 16:32:59,785 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (46 of 74 remaining) [2022-04-18 16:32:59,785 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (45 of 74 remaining) [2022-04-18 16:32:59,785 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (44 of 74 remaining) [2022-04-18 16:32:59,785 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (43 of 74 remaining) [2022-04-18 16:32:59,785 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 74 remaining) [2022-04-18 16:32:59,786 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (41 of 74 remaining) [2022-04-18 16:32:59,786 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (40 of 74 remaining) [2022-04-18 16:32:59,786 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (39 of 74 remaining) [2022-04-18 16:32:59,786 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (38 of 74 remaining) [2022-04-18 16:32:59,786 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (37 of 74 remaining) [2022-04-18 16:32:59,786 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (36 of 74 remaining) [2022-04-18 16:32:59,787 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (35 of 74 remaining) [2022-04-18 16:32:59,787 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (34 of 74 remaining) [2022-04-18 16:32:59,787 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (33 of 74 remaining) [2022-04-18 16:32:59,787 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (32 of 74 remaining) [2022-04-18 16:32:59,787 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (31 of 74 remaining) [2022-04-18 16:32:59,787 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (30 of 74 remaining) [2022-04-18 16:32:59,788 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 74 remaining) [2022-04-18 16:32:59,788 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 74 remaining) [2022-04-18 16:32:59,788 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 74 remaining) [2022-04-18 16:32:59,788 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (26 of 74 remaining) [2022-04-18 16:32:59,788 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (25 of 74 remaining) [2022-04-18 16:32:59,789 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (24 of 74 remaining) [2022-04-18 16:32:59,789 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (23 of 74 remaining) [2022-04-18 16:32:59,789 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (22 of 74 remaining) [2022-04-18 16:32:59,789 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (21 of 74 remaining) [2022-04-18 16:32:59,789 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (20 of 74 remaining) [2022-04-18 16:32:59,789 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (19 of 74 remaining) [2022-04-18 16:32:59,790 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (18 of 74 remaining) [2022-04-18 16:32:59,790 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (17 of 74 remaining) [2022-04-18 16:32:59,790 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (16 of 74 remaining) [2022-04-18 16:32:59,790 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 74 remaining) [2022-04-18 16:32:59,790 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (14 of 74 remaining) [2022-04-18 16:32:59,790 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (13 of 74 remaining) [2022-04-18 16:32:59,791 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (12 of 74 remaining) [2022-04-18 16:32:59,791 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (11 of 74 remaining) [2022-04-18 16:32:59,791 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (10 of 74 remaining) [2022-04-18 16:32:59,791 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (9 of 74 remaining) [2022-04-18 16:32:59,791 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (8 of 74 remaining) [2022-04-18 16:32:59,791 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (7 of 74 remaining) [2022-04-18 16:32:59,792 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (6 of 74 remaining) [2022-04-18 16:32:59,792 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (5 of 74 remaining) [2022-04-18 16:32:59,792 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (4 of 74 remaining) [2022-04-18 16:32:59,792 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (3 of 74 remaining) [2022-04-18 16:32:59,792 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (2 of 74 remaining) [2022-04-18 16:32:59,792 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (1 of 74 remaining) [2022-04-18 16:32:59,793 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (0 of 74 remaining) [2022-04-18 16:32:59,793 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-18 16:32:59,796 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:59,801 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:32:59,801 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:32:59,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:32:59 BasicIcfg [2022-04-18 16:32:59,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:32:59,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:32:59,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:32:59,805 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:32:59,805 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:32:47" (3/4) ... [2022-04-18 16:32:59,807 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:32:59,812 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:32:59,813 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:32:59,813 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-04-18 16:32:59,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-04-18 16:32:59,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:32:59,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:32:59,819 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:32:59,853 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:32:59,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:32:59,854 INFO L158 Benchmark]: Toolchain (without parser) took 14068.06ms. Allocated memory was 86.0MB in the beginning and 1.1GB in the end (delta: 1.1GB). Free memory was 50.6MB in the beginning and 511.0MB in the end (delta: -460.4MB). Peak memory consumption was 598.7MB. Max. memory is 16.1GB. [2022-04-18 16:32:59,854 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 86.0MB. Free memory was 66.6MB in the beginning and 66.5MB in the end (delta: 36.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:32:59,855 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.95ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 50.4MB in the beginning and 78.8MB in the end (delta: -28.4MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-04-18 16:32:59,855 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.83ms. Allocated memory is still 104.9MB. Free memory was 78.6MB in the beginning and 75.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:32:59,855 INFO L158 Benchmark]: Boogie Preprocessor took 48.98ms. Allocated memory is still 104.9MB. Free memory was 75.7MB in the beginning and 73.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:32:59,856 INFO L158 Benchmark]: RCFGBuilder took 815.18ms. Allocated memory is still 104.9MB. Free memory was 73.6MB in the beginning and 73.0MB in the end (delta: 584.1kB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-04-18 16:32:59,856 INFO L158 Benchmark]: TraceAbstraction took 12734.40ms. Allocated memory was 104.9MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 72.2MB in the beginning and 515.2MB in the end (delta: -442.9MB). Peak memory consumption was 598.0MB. Max. memory is 16.1GB. [2022-04-18 16:32:59,856 INFO L158 Benchmark]: Witness Printer took 49.08ms. Allocated memory is still 1.1GB. Free memory was 515.2MB in the beginning and 511.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:32:59,858 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 86.0MB. Free memory was 66.6MB in the beginning and 66.5MB in the end (delta: 36.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.95ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 50.4MB in the beginning and 78.8MB in the end (delta: -28.4MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.83ms. Allocated memory is still 104.9MB. Free memory was 78.6MB in the beginning and 75.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.98ms. Allocated memory is still 104.9MB. Free memory was 75.7MB in the beginning and 73.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 815.18ms. Allocated memory is still 104.9MB. Free memory was 73.6MB in the beginning and 73.0MB in the end (delta: 584.1kB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * TraceAbstraction took 12734.40ms. Allocated memory was 104.9MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 72.2MB in the beginning and 515.2MB in the end (delta: -442.9MB). Peak memory consumption was 598.0MB. Max. memory is 16.1GB. * Witness Printer took 49.08ms. Allocated memory is still 1.1GB. Free memory was 515.2MB in the beginning and 511.0MB 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: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: 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: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: 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: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: 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: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: 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, 798 locations, 74 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: 12.6s, OverallIterations: 27, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 231 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 141 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 608 IncrementalHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 231 mSDtfsCounter, 608 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1021occurred in iteration=21, InterpolantAutomatonStates: 90, 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, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 3840 NumberOfCodeBlocks, 3840 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3813 ConstructedInterpolants, 0 QuantifiedInterpolants, 4104 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 44 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:32:59,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE