./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-name-comparator-subst.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-name-comparator-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 83223bd52506e4247e7ac7ce7a49284be0292b773b9e827e6221f58042ba0602 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:52:11,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:52:11,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:52:11,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:52:11,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:52:11,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:52:11,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:52:11,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:52:11,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:52:11,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:52:11,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:52:11,771 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:52:11,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:52:11,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:52:11,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:52:11,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:52:11,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:52:11,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:52:11,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:52:11,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:52:11,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:52:11,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:52:11,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:52:11,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:52:11,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:52:11,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:52:11,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:52:11,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:52:11,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:52:11,785 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:52:11,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:52:11,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:52:11,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:52:11,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:52:11,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:52:11,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:52:11,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:52:11,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:52:11,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:52:11,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:52:11,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:52:11,794 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:52:11,814 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:52:11,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:52:11,815 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:52:11,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:52:11,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:52:11,816 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:52:11,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:52:11,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:52:11,818 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:52:11,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:52:11,818 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:52:11,819 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:52:11,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:52:11,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:52:11,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:52:11,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:52:11,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:52:11,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:52:11,820 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:52:11,821 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:52:11,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:52:11,824 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:52:11,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:52:11,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:52:11,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:52:11,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:52:11,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:52:11,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:52:11,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:52:11,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:52:11,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:52:11,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:52:11,828 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:52:11,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:52:11,828 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:52:11,828 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:52:11,828 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:52:11,828 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83223bd52506e4247e7ac7ce7a49284be0292b773b9e827e6221f58042ba0602 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:52:12,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:52:12,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:52:12,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:52:12,086 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:52:12,091 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:52:12,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-name-comparator-subst.wvr.c [2023-08-29 18:52:12,985 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:52:13,170 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:52:13,170 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-subst.wvr.c [2023-08-29 18:52:13,183 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7b6aef94/b2bdff3634444ea8b1709ccb6958501a/FLAG9f0ce15de [2023-08-29 18:52:13,196 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7b6aef94/b2bdff3634444ea8b1709ccb6958501a [2023-08-29 18:52:13,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:52:13,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:52:13,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:52:13,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:52:13,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:52:13,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:52:13" (1/1) ... [2023-08-29 18:52:13,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49cd6160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:52:13, skipping insertion in model container [2023-08-29 18:52:13,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:52:13" (1/1) ... [2023-08-29 18:52:13,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:52:13,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:52:13,441 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-subst.wvr.c[4836,4849] [2023-08-29 18:52:13,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:52:13,464 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:52:13,517 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-subst.wvr.c[4836,4849] [2023-08-29 18:52:13,523 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:52:13,536 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:52:13,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:52:13 WrapperNode [2023-08-29 18:52:13,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:52:13,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:52:13,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:52:13,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:52:13,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:52:13" (1/1) ... [2023-08-29 18:52:13,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:52:13" (1/1) ... [2023-08-29 18:52:13,622 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 873 [2023-08-29 18:52:13,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:52:13,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:52:13,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:52:13,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:52:13,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:52:13" (1/1) ... [2023-08-29 18:52:13,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:52:13" (1/1) ... [2023-08-29 18:52:13,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:52:13" (1/1) ... [2023-08-29 18:52:13,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:52:13" (1/1) ... [2023-08-29 18:52:13,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:52:13" (1/1) ... [2023-08-29 18:52:13,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:52:13" (1/1) ... [2023-08-29 18:52:13,690 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:52:13" (1/1) ... [2023-08-29 18:52:13,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:52:13" (1/1) ... [2023-08-29 18:52:13,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:52:13,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:52:13,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:52:13,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:52:13,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:52:13" (1/1) ... [2023-08-29 18:52:13,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:52:13,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:52:13,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 18:52:13,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 18:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 18:52:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 18:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 18:52:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 18:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 18:52:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 18:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:52:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 18:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:52:13,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:52:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:52:13,801 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 18:52:13,924 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:52:13,926 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:52:14,641 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:52:14,651 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:52:14,651 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-29 18:52:14,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:52:14 BoogieIcfgContainer [2023-08-29 18:52:14,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:52:14,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:52:14,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:52:14,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:52:14,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:52:13" (1/3) ... [2023-08-29 18:52:14,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5d7f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:52:14, skipping insertion in model container [2023-08-29 18:52:14,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:52:13" (2/3) ... [2023-08-29 18:52:14,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5d7f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:52:14, skipping insertion in model container [2023-08-29 18:52:14,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:52:14" (3/3) ... [2023-08-29 18:52:14,657 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-subst.wvr.c [2023-08-29 18:52:14,662 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:52:14,667 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:52:14,668 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 154 error locations. [2023-08-29 18:52:14,668 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:52:14,802 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 18:52:14,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1047 places, 1095 transitions, 2214 flow [2023-08-29 18:52:15,236 INFO L130 PetriNetUnfolder]: 58/1092 cut-off events. [2023-08-29 18:52:15,236 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 18:52:15,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1105 conditions, 1092 events. 58/1092 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3745 event pairs, 0 based on Foata normal form. 0/880 useless extension candidates. Maximal degree in co-relation 824. Up to 2 conditions per place. [2023-08-29 18:52:15,263 INFO L82 GeneralOperation]: Start removeDead. Operand has 1047 places, 1095 transitions, 2214 flow [2023-08-29 18:52:15,289 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1024 places, 1069 transitions, 2156 flow [2023-08-29 18:52:15,292 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:52:15,302 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1024 places, 1069 transitions, 2156 flow [2023-08-29 18:52:15,304 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1024 places, 1069 transitions, 2156 flow [2023-08-29 18:52:15,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1024 places, 1069 transitions, 2156 flow [2023-08-29 18:52:15,570 INFO L130 PetriNetUnfolder]: 55/1069 cut-off events. [2023-08-29 18:52:15,570 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 18:52:15,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1082 conditions, 1069 events. 55/1069 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3711 event pairs, 0 based on Foata normal form. 0/861 useless extension candidates. Maximal degree in co-relation 824. Up to 2 conditions per place. [2023-08-29 18:52:15,679 INFO L119 LiptonReduction]: Number of co-enabled transitions 459510 [2023-08-29 18:52:33,862 INFO L134 LiptonReduction]: Checked pairs total: 1026850 [2023-08-29 18:52:33,862 INFO L136 LiptonReduction]: Total number of compositions: 1284 [2023-08-29 18:52:33,872 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:52:33,876 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@72e3f60f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:52:33,876 INFO L358 AbstractCegarLoop]: Starting to check reachability of 286 error locations. [2023-08-29 18:52:33,877 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 18:52:33,877 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:52:33,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:52:33,878 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 18:52:33,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-08-29 18:52:33,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:52:33,881 INFO L85 PathProgramCache]: Analyzing trace with hash 4494, now seen corresponding path program 1 times [2023-08-29 18:52:33,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:52:33,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238402019] [2023-08-29 18:52:33,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:52:33,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:52:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:52:33,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:52:33,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:52:33,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238402019] [2023-08-29 18:52:33,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238402019] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:52:33,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:52:33,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 18:52:33,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321144016] [2023-08-29 18:52:33,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:52:33,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 18:52:33,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:52:33,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 18:52:33,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 18:52:33,976 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1069 out of 2379 [2023-08-29 18:52:33,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 280 transitions, 578 flow. Second operand has 2 states, 2 states have (on average 1069.5) internal successors, (2139), 2 states have internal predecessors, (2139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:33,980 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:52:33,980 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1069 of 2379 [2023-08-29 18:52:33,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:52:38,840 INFO L130 PetriNetUnfolder]: 46424/74925 cut-off events. [2023-08-29 18:52:38,840 INFO L131 PetriNetUnfolder]: For 1553/1697 co-relation queries the response was YES. [2023-08-29 18:52:38,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138593 conditions, 74925 events. 46424/74925 cut-off events. For 1553/1697 co-relation queries the response was YES. Maximal size of possible extension queue 1518. Compared 594878 event pairs, 36815 based on Foata normal form. 8359/72034 useless extension candidates. Maximal degree in co-relation 131827. Up to 62464 conditions per place. [2023-08-29 18:52:39,326 INFO L137 encePairwiseOnDemand]: 2263/2379 looper letters, 80 selfloop transitions, 0 changer transitions 1/164 dead transitions. [2023-08-29 18:52:39,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 164 transitions, 508 flow [2023-08-29 18:52:39,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 18:52:39,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 18:52:39,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2335 transitions. [2023-08-29 18:52:39,345 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4907524169819252 [2023-08-29 18:52:39,345 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2335 transitions. [2023-08-29 18:52:39,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2335 transitions. [2023-08-29 18:52:39,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:52:39,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2335 transitions. [2023-08-29 18:52:39,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1167.5) internal successors, (2335), 2 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:39,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2379.0) internal successors, (7137), 3 states have internal predecessors, (7137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:39,368 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2379.0) internal successors, (7137), 3 states have internal predecessors, (7137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:39,369 INFO L175 Difference]: Start difference. First operand has 275 places, 280 transitions, 578 flow. Second operand 2 states and 2335 transitions. [2023-08-29 18:52:39,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 164 transitions, 508 flow [2023-08-29 18:52:39,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 164 transitions, 496 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 18:52:39,381 INFO L231 Difference]: Finished difference. Result has 156 places, 163 transitions, 331 flow [2023-08-29 18:52:39,383 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2379, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=331, PETRI_PLACES=156, PETRI_TRANSITIONS=163} [2023-08-29 18:52:39,387 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, -119 predicate places. [2023-08-29 18:52:39,387 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 163 transitions, 331 flow [2023-08-29 18:52:39,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1069.5) internal successors, (2139), 2 states have internal predecessors, (2139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:39,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:52:39,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 18:52:39,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:52:39,391 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-08-29 18:52:39,392 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:52:39,392 INFO L85 PathProgramCache]: Analyzing trace with hash 27929870, now seen corresponding path program 1 times [2023-08-29 18:52:39,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:52:39,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234093560] [2023-08-29 18:52:39,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:52:39,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:52:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:52:39,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:52:39,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:52:39,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234093560] [2023-08-29 18:52:39,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234093560] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:52:39,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:52:39,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:52:39,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498485202] [2023-08-29 18:52:39,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:52:39,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:52:39,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:52:39,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:52:39,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:52:39,542 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1038 out of 2379 [2023-08-29 18:52:39,545 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 163 transitions, 331 flow. Second operand has 3 states, 3 states have (on average 1039.6666666666667) internal successors, (3119), 3 states have internal predecessors, (3119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:39,545 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:52:39,545 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1038 of 2379 [2023-08-29 18:52:39,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:52:45,097 INFO L130 PetriNetUnfolder]: 60626/96133 cut-off events. [2023-08-29 18:52:45,099 INFO L131 PetriNetUnfolder]: For 421/421 co-relation queries the response was YES. [2023-08-29 18:52:45,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178489 conditions, 96133 events. 60626/96133 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 1746. Compared 759531 event pairs, 36372 based on Foata normal form. 0/82938 useless extension candidates. Maximal degree in co-relation 178486. Up to 81753 conditions per place. [2023-08-29 18:52:45,588 INFO L137 encePairwiseOnDemand]: 2367/2379 looper letters, 113 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2023-08-29 18:52:45,588 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 182 transitions, 601 flow [2023-08-29 18:52:45,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:52:45,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:52:45,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3239 transitions. [2023-08-29 18:52:45,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4538321423567325 [2023-08-29 18:52:45,595 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3239 transitions. [2023-08-29 18:52:45,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3239 transitions. [2023-08-29 18:52:45,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:52:45,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3239 transitions. [2023-08-29 18:52:45,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1079.6666666666667) internal successors, (3239), 3 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:45,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2379.0) internal successors, (9516), 4 states have internal predecessors, (9516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:45,614 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2379.0) internal successors, (9516), 4 states have internal predecessors, (9516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:45,614 INFO L175 Difference]: Start difference. First operand has 156 places, 163 transitions, 331 flow. Second operand 3 states and 3239 transitions. [2023-08-29 18:52:45,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 182 transitions, 601 flow [2023-08-29 18:52:45,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 182 transitions, 601 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:52:45,620 INFO L231 Difference]: Finished difference. Result has 148 places, 155 transitions, 325 flow [2023-08-29 18:52:45,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2379, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=148, PETRI_TRANSITIONS=155} [2023-08-29 18:52:45,621 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, -127 predicate places. [2023-08-29 18:52:45,621 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 155 transitions, 325 flow [2023-08-29 18:52:45,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1039.6666666666667) internal successors, (3119), 3 states have internal predecessors, (3119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:45,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:52:45,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:52:45,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:52:45,623 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-08-29 18:52:45,626 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:52:45,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1070880368, now seen corresponding path program 1 times [2023-08-29 18:52:45,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:52:45,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895692338] [2023-08-29 18:52:45,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:52:45,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:52:45,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:52:45,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:52:45,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:52:45,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895692338] [2023-08-29 18:52:45,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895692338] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:52:45,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:52:45,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:52:45,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819341347] [2023-08-29 18:52:45,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:52:45,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:52:45,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:52:45,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:52:45,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:52:45,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1038 out of 2379 [2023-08-29 18:52:45,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 155 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:45,734 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:52:45,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1038 of 2379 [2023-08-29 18:52:45,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:52:51,005 INFO L130 PetriNetUnfolder]: 60710/93553 cut-off events. [2023-08-29 18:52:51,006 INFO L131 PetriNetUnfolder]: For 2335/2335 co-relation queries the response was YES. [2023-08-29 18:52:51,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178012 conditions, 93553 events. 60710/93553 cut-off events. For 2335/2335 co-relation queries the response was YES. Maximal size of possible extension queue 1727. Compared 721591 event pairs, 16961 based on Foata normal form. 0/81095 useless extension candidates. Maximal degree in co-relation 178008. Up to 81526 conditions per place. [2023-08-29 18:52:51,675 INFO L137 encePairwiseOnDemand]: 2367/2379 looper letters, 119 selfloop transitions, 2 changer transitions 0/178 dead transitions. [2023-08-29 18:52:51,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 178 transitions, 625 flow [2023-08-29 18:52:51,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:52:51,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:52:51,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3241 transitions. [2023-08-29 18:52:51,683 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45411237214515904 [2023-08-29 18:52:51,683 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3241 transitions. [2023-08-29 18:52:51,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3241 transitions. [2023-08-29 18:52:51,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:52:51,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3241 transitions. [2023-08-29 18:52:51,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1080.3333333333333) internal successors, (3241), 3 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:51,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2379.0) internal successors, (9516), 4 states have internal predecessors, (9516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:51,700 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2379.0) internal successors, (9516), 4 states have internal predecessors, (9516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:51,700 INFO L175 Difference]: Start difference. First operand has 148 places, 155 transitions, 325 flow. Second operand 3 states and 3241 transitions. [2023-08-29 18:52:51,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 178 transitions, 625 flow [2023-08-29 18:52:51,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 178 transitions, 625 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:52:51,703 INFO L231 Difference]: Finished difference. Result has 141 places, 147 transitions, 319 flow [2023-08-29 18:52:51,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2379, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=141, PETRI_TRANSITIONS=147} [2023-08-29 18:52:51,704 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, -134 predicate places. [2023-08-29 18:52:51,704 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 147 transitions, 319 flow [2023-08-29 18:52:51,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:51,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:52:51,705 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:52:51,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:52:51,705 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-08-29 18:52:51,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:52:51,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1080186180, now seen corresponding path program 1 times [2023-08-29 18:52:51,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:52:51,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908694794] [2023-08-29 18:52:51,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:52:51,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:52:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:52:51,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:52:51,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:52:51,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908694794] [2023-08-29 18:52:51,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908694794] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:52:51,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:52:51,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:52:51,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321652206] [2023-08-29 18:52:51,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:52:51,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:52:51,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:52:51,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:52:51,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:52:51,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1038 out of 2379 [2023-08-29 18:52:51,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 147 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 1040.6666666666667) internal successors, (3122), 3 states have internal predecessors, (3122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:51,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:52:51,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1038 of 2379 [2023-08-29 18:52:51,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:52:57,269 INFO L130 PetriNetUnfolder]: 62387/92889 cut-off events. [2023-08-29 18:52:57,270 INFO L131 PetriNetUnfolder]: For 3495/3590 co-relation queries the response was YES. [2023-08-29 18:52:57,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181078 conditions, 92889 events. 62387/92889 cut-off events. For 3495/3590 co-relation queries the response was YES. Maximal size of possible extension queue 1612. Compared 668833 event pairs, 17213 based on Foata normal form. 1/80556 useless extension candidates. Maximal degree in co-relation 181073. Up to 83833 conditions per place. [2023-08-29 18:52:57,768 INFO L137 encePairwiseOnDemand]: 2367/2379 looper letters, 121 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2023-08-29 18:52:57,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 171 transitions, 630 flow [2023-08-29 18:52:57,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:52:57,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:52:57,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3241 transitions. [2023-08-29 18:52:57,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45411237214515904 [2023-08-29 18:52:57,775 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3241 transitions. [2023-08-29 18:52:57,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3241 transitions. [2023-08-29 18:52:57,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:52:57,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3241 transitions. [2023-08-29 18:52:57,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1080.3333333333333) internal successors, (3241), 3 states have internal predecessors, (3241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:57,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2379.0) internal successors, (9516), 4 states have internal predecessors, (9516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:57,788 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2379.0) internal successors, (9516), 4 states have internal predecessors, (9516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:57,788 INFO L175 Difference]: Start difference. First operand has 141 places, 147 transitions, 319 flow. Second operand 3 states and 3241 transitions. [2023-08-29 18:52:57,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 171 transitions, 630 flow [2023-08-29 18:52:57,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 171 transitions, 630 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:52:57,791 INFO L231 Difference]: Finished difference. Result has 134 places, 139 transitions, 313 flow [2023-08-29 18:52:57,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2379, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=313, PETRI_PLACES=134, PETRI_TRANSITIONS=139} [2023-08-29 18:52:57,792 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, -141 predicate places. [2023-08-29 18:52:57,792 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 139 transitions, 313 flow [2023-08-29 18:52:57,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1040.6666666666667) internal successors, (3122), 3 states have internal predecessors, (3122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:57,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:52:57,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:52:57,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:52:57,794 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-08-29 18:52:57,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:52:57,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1769176009, now seen corresponding path program 1 times [2023-08-29 18:52:57,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:52:57,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444963470] [2023-08-29 18:52:57,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:52:57,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:52:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:52:57,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:52:57,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:52:57,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444963470] [2023-08-29 18:52:57,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444963470] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:52:57,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:52:57,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:52:57,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249972788] [2023-08-29 18:52:57,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:52:57,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:52:57,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:52:57,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:52:57,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:52:57,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1065 out of 2379 [2023-08-29 18:52:57,896 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 139 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 1067.6666666666667) internal successors, (3203), 3 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:52:57,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:52:57,897 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1065 of 2379 [2023-08-29 18:52:57,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:53:02,573 INFO L130 PetriNetUnfolder]: 49075/72600 cut-off events. [2023-08-29 18:53:02,574 INFO L131 PetriNetUnfolder]: For 2890/3034 co-relation queries the response was YES. [2023-08-29 18:53:02,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142302 conditions, 72600 events. 49075/72600 cut-off events. For 2890/3034 co-relation queries the response was YES. Maximal size of possible extension queue 1292. Compared 492521 event pairs, 38051 based on Foata normal form. 0/61291 useless extension candidates. Maximal degree in co-relation 142296. Up to 66535 conditions per place. [2023-08-29 18:53:02,913 INFO L137 encePairwiseOnDemand]: 2376/2379 looper letters, 82 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2023-08-29 18:53:02,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 140 transitions, 483 flow [2023-08-29 18:53:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:53:02,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:53:02,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3277 transitions. [2023-08-29 18:53:02,919 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4591565083368362 [2023-08-29 18:53:02,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3277 transitions. [2023-08-29 18:53:02,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3277 transitions. [2023-08-29 18:53:02,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:53:02,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3277 transitions. [2023-08-29 18:53:02,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:02,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2379.0) internal successors, (9516), 4 states have internal predecessors, (9516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:02,930 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2379.0) internal successors, (9516), 4 states have internal predecessors, (9516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:02,930 INFO L175 Difference]: Start difference. First operand has 134 places, 139 transitions, 313 flow. Second operand 3 states and 3277 transitions. [2023-08-29 18:53:02,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 140 transitions, 483 flow [2023-08-29 18:53:02,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 140 transitions, 483 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:53:02,933 INFO L231 Difference]: Finished difference. Result has 137 places, 140 transitions, 325 flow [2023-08-29 18:53:02,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2379, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=137, PETRI_TRANSITIONS=140} [2023-08-29 18:53:02,934 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, -138 predicate places. [2023-08-29 18:53:02,934 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 140 transitions, 325 flow [2023-08-29 18:53:02,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1067.6666666666667) internal successors, (3203), 3 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:02,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:53:02,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:53:02,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:53:02,935 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-08-29 18:53:02,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:53:02,935 INFO L85 PathProgramCache]: Analyzing trace with hash 543196484, now seen corresponding path program 1 times [2023-08-29 18:53:02,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:53:02,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429151071] [2023-08-29 18:53:02,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:53:02,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:53:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:53:02,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:53:02,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:53:02,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429151071] [2023-08-29 18:53:02,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429151071] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 18:53:02,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792281894] [2023-08-29 18:53:02,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:53:02,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:53:02,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:53:02,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 18:53:02,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 18:53:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:53:03,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-29 18:53:03,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 18:53:03,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:53:03,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 18:53:03,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:53:03,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792281894] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 18:53:03,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 18:53:03,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-29 18:53:03,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005916223] [2023-08-29 18:53:03,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 18:53:03,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 18:53:03,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:53:03,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 18:53:03,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-29 18:53:03,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1063 out of 2379 [2023-08-29 18:53:03,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 140 transitions, 325 flow. Second operand has 7 states, 7 states have (on average 1065.142857142857) internal successors, (7456), 7 states have internal predecessors, (7456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:03,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:53:03,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1063 of 2379 [2023-08-29 18:53:03,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:53:07,970 INFO L130 PetriNetUnfolder]: 49075/72602 cut-off events. [2023-08-29 18:53:07,971 INFO L131 PetriNetUnfolder]: For 2890/3034 co-relation queries the response was YES. [2023-08-29 18:53:08,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142315 conditions, 72602 events. 49075/72602 cut-off events. For 2890/3034 co-relation queries the response was YES. Maximal size of possible extension queue 1292. Compared 492357 event pairs, 38051 based on Foata normal form. 0/61293 useless extension candidates. Maximal degree in co-relation 142307. Up to 66535 conditions per place. [2023-08-29 18:53:08,577 INFO L137 encePairwiseOnDemand]: 2376/2379 looper letters, 82 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2023-08-29 18:53:08,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 142 transitions, 505 flow [2023-08-29 18:53:08,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 18:53:08,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 18:53:08,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5400 transitions. [2023-08-29 18:53:08,585 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45397225725094575 [2023-08-29 18:53:08,586 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 5400 transitions. [2023-08-29 18:53:08,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5400 transitions. [2023-08-29 18:53:08,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:53:08,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 5400 transitions. [2023-08-29 18:53:08,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1080.0) internal successors, (5400), 5 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:08,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 2379.0) internal successors, (14274), 6 states have internal predecessors, (14274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:08,604 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 2379.0) internal successors, (14274), 6 states have internal predecessors, (14274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:08,604 INFO L175 Difference]: Start difference. First operand has 137 places, 140 transitions, 325 flow. Second operand 5 states and 5400 transitions. [2023-08-29 18:53:08,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 142 transitions, 505 flow [2023-08-29 18:53:08,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 142 transitions, 501 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 18:53:08,607 INFO L231 Difference]: Finished difference. Result has 142 places, 142 transitions, 347 flow [2023-08-29 18:53:08,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2379, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=347, PETRI_PLACES=142, PETRI_TRANSITIONS=142} [2023-08-29 18:53:08,610 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, -133 predicate places. [2023-08-29 18:53:08,610 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 142 transitions, 347 flow [2023-08-29 18:53:08,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1065.142857142857) internal successors, (7456), 7 states have internal predecessors, (7456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:08,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:53:08,612 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:53:08,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 18:53:08,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-29 18:53:08,816 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-08-29 18:53:08,817 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:53:08,817 INFO L85 PathProgramCache]: Analyzing trace with hash 904173476, now seen corresponding path program 2 times [2023-08-29 18:53:08,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:53:08,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846211861] [2023-08-29 18:53:08,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:53:08,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:53:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:53:09,123 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 18:53:09,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:53:09,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846211861] [2023-08-29 18:53:09,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846211861] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:53:09,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:53:09,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:53:09,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191004946] [2023-08-29 18:53:09,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:53:09,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:53:09,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:53:09,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:53:09,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:53:09,349 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1056 out of 2379 [2023-08-29 18:53:09,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 142 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 1058.1666666666667) internal successors, (6349), 6 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:09,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:53:09,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1056 of 2379 [2023-08-29 18:53:09,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:53:22,782 INFO L130 PetriNetUnfolder]: 155755/209639 cut-off events. [2023-08-29 18:53:22,782 INFO L131 PetriNetUnfolder]: For 7218/7218 co-relation queries the response was YES. [2023-08-29 18:53:23,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422713 conditions, 209639 events. 155755/209639 cut-off events. For 7218/7218 co-relation queries the response was YES. Maximal size of possible extension queue 3317. Compared 1434548 event pairs, 15030 based on Foata normal form. 0/178619 useless extension candidates. Maximal degree in co-relation 422703. Up to 71854 conditions per place. [2023-08-29 18:53:24,071 INFO L137 encePairwiseOnDemand]: 2374/2379 looper letters, 366 selfloop transitions, 4 changer transitions 0/421 dead transitions. [2023-08-29 18:53:24,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 421 transitions, 1705 flow [2023-08-29 18:53:24,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:53:24,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:53:24,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6689 transitions. [2023-08-29 18:53:24,080 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4686142636962309 [2023-08-29 18:53:24,080 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6689 transitions. [2023-08-29 18:53:24,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6689 transitions. [2023-08-29 18:53:24,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:53:24,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6689 transitions. [2023-08-29 18:53:24,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1114.8333333333333) internal successors, (6689), 6 states have internal predecessors, (6689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:24,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2379.0) internal successors, (16653), 7 states have internal predecessors, (16653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:24,100 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2379.0) internal successors, (16653), 7 states have internal predecessors, (16653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:24,100 INFO L175 Difference]: Start difference. First operand has 142 places, 142 transitions, 347 flow. Second operand 6 states and 6689 transitions. [2023-08-29 18:53:24,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 421 transitions, 1705 flow [2023-08-29 18:53:24,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 421 transitions, 1695 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-29 18:53:24,106 INFO L231 Difference]: Finished difference. Result has 145 places, 141 transitions, 343 flow [2023-08-29 18:53:24,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2379, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=343, PETRI_PLACES=145, PETRI_TRANSITIONS=141} [2023-08-29 18:53:24,106 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, -130 predicate places. [2023-08-29 18:53:24,106 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 141 transitions, 343 flow [2023-08-29 18:53:24,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1058.1666666666667) internal successors, (6349), 6 states have internal predecessors, (6349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:24,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:53:24,108 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:53:24,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 18:53:24,108 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-08-29 18:53:24,108 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:53:24,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1839399784, now seen corresponding path program 1 times [2023-08-29 18:53:24,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:53:24,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858995577] [2023-08-29 18:53:24,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:53:24,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:53:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:53:24,135 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 18:53:24,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:53:24,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858995577] [2023-08-29 18:53:24,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858995577] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:53:24,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:53:24,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:53:24,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853438918] [2023-08-29 18:53:24,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:53:24,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:53:24,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:53:24,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:53:24,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:53:24,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1059 out of 2379 [2023-08-29 18:53:24,148 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 141 transitions, 343 flow. Second operand has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:24,148 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:53:24,148 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1059 of 2379 [2023-08-29 18:53:24,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:53:29,252 INFO L130 PetriNetUnfolder]: 52592/79565 cut-off events. [2023-08-29 18:53:29,252 INFO L131 PetriNetUnfolder]: For 11747/11891 co-relation queries the response was YES. [2023-08-29 18:53:29,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163091 conditions, 79565 events. 52592/79565 cut-off events. For 11747/11891 co-relation queries the response was YES. Maximal size of possible extension queue 1521. Compared 571822 event pairs, 14923 based on Foata normal form. 3/67400 useless extension candidates. Maximal degree in co-relation 163080. Up to 66360 conditions per place. [2023-08-29 18:53:29,721 INFO L137 encePairwiseOnDemand]: 2373/2379 looper letters, 122 selfloop transitions, 3 changer transitions 0/177 dead transitions. [2023-08-29 18:53:29,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 177 transitions, 686 flow [2023-08-29 18:53:29,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:53:29,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:53:29,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3296 transitions. [2023-08-29 18:53:29,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4618186913268881 [2023-08-29 18:53:29,727 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3296 transitions. [2023-08-29 18:53:29,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3296 transitions. [2023-08-29 18:53:29,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:53:29,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3296 transitions. [2023-08-29 18:53:29,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1098.6666666666667) internal successors, (3296), 3 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:29,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2379.0) internal successors, (9516), 4 states have internal predecessors, (9516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:29,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2379.0) internal successors, (9516), 4 states have internal predecessors, (9516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:29,738 INFO L175 Difference]: Start difference. First operand has 145 places, 141 transitions, 343 flow. Second operand 3 states and 3296 transitions. [2023-08-29 18:53:29,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 177 transitions, 686 flow [2023-08-29 18:53:29,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 177 transitions, 677 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 18:53:29,766 INFO L231 Difference]: Finished difference. Result has 141 places, 141 transitions, 351 flow [2023-08-29 18:53:29,766 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2379, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=351, PETRI_PLACES=141, PETRI_TRANSITIONS=141} [2023-08-29 18:53:29,767 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, -134 predicate places. [2023-08-29 18:53:29,767 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 141 transitions, 351 flow [2023-08-29 18:53:29,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:29,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:53:29,768 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:53:29,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 18:53:29,768 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err42ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-08-29 18:53:29,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:53:29,768 INFO L85 PathProgramCache]: Analyzing trace with hash -2106771299, now seen corresponding path program 1 times [2023-08-29 18:53:29,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:53:29,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693802171] [2023-08-29 18:53:29,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:53:29,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:53:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:53:29,796 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 18:53:29,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:53:29,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693802171] [2023-08-29 18:53:29,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693802171] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:53:29,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:53:29,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:53:29,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14908235] [2023-08-29 18:53:29,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:53:29,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:53:29,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:53:29,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:53:29,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:53:29,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1054 out of 2379 [2023-08-29 18:53:29,834 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 141 transitions, 351 flow. Second operand has 3 states, 3 states have (on average 1058.0) internal successors, (3174), 3 states have internal predecessors, (3174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:29,834 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:53:29,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1054 of 2379 [2023-08-29 18:53:29,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:53:35,265 INFO L130 PetriNetUnfolder]: 52587/79023 cut-off events. [2023-08-29 18:53:35,265 INFO L131 PetriNetUnfolder]: For 5806/5950 co-relation queries the response was YES. [2023-08-29 18:53:35,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157642 conditions, 79023 events. 52587/79023 cut-off events. For 5806/5950 co-relation queries the response was YES. Maximal size of possible extension queue 1499. Compared 561891 event pairs, 37455 based on Foata normal form. 0/69681 useless extension candidates. Maximal degree in co-relation 157631. Up to 66662 conditions per place. [2023-08-29 18:53:35,949 INFO L137 encePairwiseOnDemand]: 2375/2379 looper letters, 138 selfloop transitions, 3 changer transitions 0/192 dead transitions. [2023-08-29 18:53:35,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 192 transitions, 754 flow [2023-08-29 18:53:35,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:53:35,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:53:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3292 transitions. [2023-08-29 18:53:35,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46125823175003505 [2023-08-29 18:53:35,954 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3292 transitions. [2023-08-29 18:53:35,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3292 transitions. [2023-08-29 18:53:35,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:53:35,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3292 transitions. [2023-08-29 18:53:35,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:35,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2379.0) internal successors, (9516), 4 states have internal predecessors, (9516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:35,965 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2379.0) internal successors, (9516), 4 states have internal predecessors, (9516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:35,965 INFO L175 Difference]: Start difference. First operand has 141 places, 141 transitions, 351 flow. Second operand 3 states and 3292 transitions. [2023-08-29 18:53:35,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 192 transitions, 754 flow [2023-08-29 18:53:35,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 192 transitions, 754 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:53:35,968 INFO L231 Difference]: Finished difference. Result has 142 places, 140 transitions, 355 flow [2023-08-29 18:53:35,969 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2379, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=142, PETRI_TRANSITIONS=140} [2023-08-29 18:53:35,969 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, -133 predicate places. [2023-08-29 18:53:35,969 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 140 transitions, 355 flow [2023-08-29 18:53:35,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1058.0) internal successors, (3174), 3 states have internal predecessors, (3174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:35,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:53:35,970 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:53:35,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 18:53:35,970 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-08-29 18:53:35,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:53:35,971 INFO L85 PathProgramCache]: Analyzing trace with hash 635942263, now seen corresponding path program 1 times [2023-08-29 18:53:35,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:53:35,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087430844] [2023-08-29 18:53:35,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:53:35,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:53:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:53:36,244 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 18:53:36,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:53:36,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087430844] [2023-08-29 18:53:36,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087430844] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:53:36,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:53:36,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:53:36,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835328702] [2023-08-29 18:53:36,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:53:36,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:53:36,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:53:36,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:53:36,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:53:36,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1053 out of 2379 [2023-08-29 18:53:36,452 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 140 transitions, 355 flow. Second operand has 6 states, 6 states have (on average 1055.5) internal successors, (6333), 6 states have internal predecessors, (6333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:36,452 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:53:36,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1053 of 2379 [2023-08-29 18:53:36,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:53:42,545 INFO L130 PetriNetUnfolder]: 61711/89699 cut-off events. [2023-08-29 18:53:42,545 INFO L131 PetriNetUnfolder]: For 9686/9830 co-relation queries the response was YES. [2023-08-29 18:53:42,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185023 conditions, 89699 events. 61711/89699 cut-off events. For 9686/9830 co-relation queries the response was YES. Maximal size of possible extension queue 1578. Compared 619734 event pairs, 22098 based on Foata normal form. 0/80883 useless extension candidates. Maximal degree in co-relation 185011. Up to 41657 conditions per place. [2023-08-29 18:53:43,078 INFO L137 encePairwiseOnDemand]: 2373/2379 looper letters, 288 selfloop transitions, 5 changer transitions 0/339 dead transitions. [2023-08-29 18:53:43,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 339 transitions, 1403 flow [2023-08-29 18:53:43,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:53:43,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:53:43,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6603 transitions. [2023-08-29 18:53:43,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46258932324506097 [2023-08-29 18:53:43,086 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6603 transitions. [2023-08-29 18:53:43,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6603 transitions. [2023-08-29 18:53:43,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:53:43,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6603 transitions. [2023-08-29 18:53:43,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1100.5) internal successors, (6603), 6 states have internal predecessors, (6603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:43,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2379.0) internal successors, (16653), 7 states have internal predecessors, (16653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:43,100 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2379.0) internal successors, (16653), 7 states have internal predecessors, (16653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:43,100 INFO L175 Difference]: Start difference. First operand has 142 places, 140 transitions, 355 flow. Second operand 6 states and 6603 transitions. [2023-08-29 18:53:43,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 339 transitions, 1403 flow [2023-08-29 18:53:43,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 339 transitions, 1373 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:53:43,198 INFO L231 Difference]: Finished difference. Result has 144 places, 139 transitions, 357 flow [2023-08-29 18:53:43,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2379, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=357, PETRI_PLACES=144, PETRI_TRANSITIONS=139} [2023-08-29 18:53:43,198 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, -131 predicate places. [2023-08-29 18:53:43,199 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 139 transitions, 357 flow [2023-08-29 18:53:43,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1055.5) internal successors, (6333), 6 states have internal predecessors, (6333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:43,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:53:43,199 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:53:43,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 18:53:43,200 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-08-29 18:53:43,200 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:53:43,200 INFO L85 PathProgramCache]: Analyzing trace with hash -146417662, now seen corresponding path program 1 times [2023-08-29 18:53:43,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:53:43,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010631641] [2023-08-29 18:53:43,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:53:43,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:53:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:53:43,530 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 18:53:43,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:53:43,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010631641] [2023-08-29 18:53:43,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010631641] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:53:43,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:53:43,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:53:43,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893678905] [2023-08-29 18:53:43,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:53:43,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:53:43,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:53:43,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:53:43,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:53:43,771 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1053 out of 2379 [2023-08-29 18:53:43,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 139 transitions, 357 flow. Second operand has 6 states, 6 states have (on average 1056.0) internal successors, (6336), 6 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:43,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:53:43,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1053 of 2379 [2023-08-29 18:53:43,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:53:50,049 INFO L130 PetriNetUnfolder]: 61623/89515 cut-off events. [2023-08-29 18:53:50,049 INFO L131 PetriNetUnfolder]: For 7294/7438 co-relation queries the response was YES. [2023-08-29 18:53:50,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182523 conditions, 89515 events. 61623/89515 cut-off events. For 7294/7438 co-relation queries the response was YES. Maximal size of possible extension queue 1617. Compared 614352 event pairs, 23016 based on Foata normal form. 0/79557 useless extension candidates. Maximal degree in co-relation 182511. Up to 41877 conditions per place. [2023-08-29 18:53:50,556 INFO L137 encePairwiseOnDemand]: 2373/2379 looper letters, 288 selfloop transitions, 5 changer transitions 0/338 dead transitions. [2023-08-29 18:53:50,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 338 transitions, 1401 flow [2023-08-29 18:53:50,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:53:50,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:53:50,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6599 transitions. [2023-08-29 18:53:50,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46230909345663446 [2023-08-29 18:53:50,564 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6599 transitions. [2023-08-29 18:53:50,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6599 transitions. [2023-08-29 18:53:50,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:53:50,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6599 transitions. [2023-08-29 18:53:50,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1099.8333333333333) internal successors, (6599), 6 states have internal predecessors, (6599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:50,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2379.0) internal successors, (16653), 7 states have internal predecessors, (16653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:50,577 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2379.0) internal successors, (16653), 7 states have internal predecessors, (16653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:50,577 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 357 flow. Second operand 6 states and 6599 transitions. [2023-08-29 18:53:50,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 338 transitions, 1401 flow [2023-08-29 18:53:50,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 338 transitions, 1383 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:53:50,586 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 355 flow [2023-08-29 18:53:50,586 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2379, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=355, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2023-08-29 18:53:50,586 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, -132 predicate places. [2023-08-29 18:53:50,587 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 355 flow [2023-08-29 18:53:50,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1056.0) internal successors, (6336), 6 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:50,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:53:50,587 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:53:50,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 18:53:50,588 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-08-29 18:53:50,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:53:50,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1153957401, now seen corresponding path program 1 times [2023-08-29 18:53:50,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:53:50,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796419466] [2023-08-29 18:53:50,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:53:50,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:53:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:53:50,793 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 18:53:50,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:53:50,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796419466] [2023-08-29 18:53:50,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796419466] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:53:50,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:53:50,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:53:50,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022676594] [2023-08-29 18:53:50,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:53:50,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:53:50,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:53:50,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:53:50,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:53:51,034 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1053 out of 2379 [2023-08-29 18:53:51,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 355 flow. Second operand has 6 states, 6 states have (on average 1056.1666666666667) internal successors, (6337), 6 states have internal predecessors, (6337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:51,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:53:51,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1053 of 2379 [2023-08-29 18:53:51,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:53:57,198 INFO L130 PetriNetUnfolder]: 62003/88784 cut-off events. [2023-08-29 18:53:57,198 INFO L131 PetriNetUnfolder]: For 7095/7239 co-relation queries the response was YES. [2023-08-29 18:53:57,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183038 conditions, 88784 events. 62003/88784 cut-off events. For 7095/7239 co-relation queries the response was YES. Maximal size of possible extension queue 1577. Compared 589064 event pairs, 22431 based on Foata normal form. 0/78579 useless extension candidates. Maximal degree in co-relation 183026. Up to 40472 conditions per place. [2023-08-29 18:53:57,818 INFO L137 encePairwiseOnDemand]: 2373/2379 looper letters, 296 selfloop transitions, 5 changer transitions 0/345 dead transitions. [2023-08-29 18:53:57,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 345 transitions, 1443 flow [2023-08-29 18:53:57,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:53:57,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:53:57,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6603 transitions. [2023-08-29 18:53:57,854 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46258932324506097 [2023-08-29 18:53:57,854 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6603 transitions. [2023-08-29 18:53:57,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6603 transitions. [2023-08-29 18:53:57,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:53:57,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6603 transitions. [2023-08-29 18:53:57,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1100.5) internal successors, (6603), 6 states have internal predecessors, (6603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:57,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2379.0) internal successors, (16653), 7 states have internal predecessors, (16653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:57,870 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2379.0) internal successors, (16653), 7 states have internal predecessors, (16653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:57,870 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 355 flow. Second operand 6 states and 6603 transitions. [2023-08-29 18:53:57,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 345 transitions, 1443 flow [2023-08-29 18:53:57,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 345 transitions, 1425 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:53:57,888 INFO L231 Difference]: Finished difference. Result has 142 places, 137 transitions, 353 flow [2023-08-29 18:53:57,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2379, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=353, PETRI_PLACES=142, PETRI_TRANSITIONS=137} [2023-08-29 18:53:57,890 INFO L281 CegarLoopForPetriNet]: 275 programPoint places, -133 predicate places. [2023-08-29 18:53:57,890 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 137 transitions, 353 flow [2023-08-29 18:53:57,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1056.1666666666667) internal successors, (6337), 6 states have internal predecessors, (6337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:57,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:53:57,891 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:53:57,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 18:53:57,891 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 282 more)] === [2023-08-29 18:53:57,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:53:57,892 INFO L85 PathProgramCache]: Analyzing trace with hash -481720763, now seen corresponding path program 1 times [2023-08-29 18:53:57,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:53:57,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039301175] [2023-08-29 18:53:57,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:53:57,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:53:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:53:58,159 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 18:53:58,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:53:58,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039301175] [2023-08-29 18:53:58,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039301175] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:53:58,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:53:58,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:53:58,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756305409] [2023-08-29 18:53:58,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:53:58,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:53:58,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:53:58,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:53:58,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:53:58,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1056 out of 2379 [2023-08-29 18:53:58,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 137 transitions, 353 flow. Second operand has 6 states, 6 states have (on average 1059.5) internal successors, (6357), 6 states have internal predecessors, (6357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:58,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:53:58,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1056 of 2379 [2023-08-29 18:53:58,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand