./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_16-arrayloop_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/goblint-regression/09-regions_16-arrayloop_rc.i -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 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:17:31,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:17:31,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:17:31,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:17:31,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:17:31,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:17:31,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:17:31,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:17:31,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:17:31,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:17:31,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:17:31,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:17:31,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:17:31,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:17:31,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:17:31,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:17:31,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:17:31,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:17:31,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:17:31,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:17:31,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:17:31,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:17:31,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:17:31,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:17:31,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:17:31,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:17:31,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:17:31,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:17:31,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:17:31,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:17:31,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:17:31,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:17:31,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:17:31,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:17:31,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:17:31,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:17:31,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:17:31,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:17:31,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:17:31,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:17:31,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:17:31,782 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:17:31,815 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:17:31,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:17:31,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:17:31,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:17:31,817 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:17:31,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:17:31,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:17:31,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:17:31,818 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:17:31,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:17:31,819 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:17:31,820 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:17:31,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:17:31,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:17:31,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:17:31,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:17:31,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:17:31,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:17:31,821 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:17:31,822 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:17:31,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:17:31,822 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:17:31,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:17:31,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:17:31,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:17:31,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:17:31,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:17:31,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:17:31,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:17:31,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:17:31,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:17:31,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:17:31,825 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:17:31,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:17:31,825 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:17:31,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:17:31,826 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:17:31,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810bf8f90e8e4e20451fbc06dd5039f754e5765485d12699b814c2e1d4badb7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:17:32,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:17:32,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:17:32,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:17:32,145 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:17:32,146 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:17:32,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_16-arrayloop_rc.i [2023-08-29 02:17:33,219 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:17:33,522 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:17:33,522 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_16-arrayloop_rc.i [2023-08-29 02:17:33,546 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fba68a4d/14af6d94bd1d4af78c94638703626d9d/FLAG15c30fe92 [2023-08-29 02:17:33,558 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fba68a4d/14af6d94bd1d4af78c94638703626d9d [2023-08-29 02:17:33,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:17:33,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:17:33,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:17:33,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:17:33,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:17:33,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:17:33" (1/1) ... [2023-08-29 02:17:33,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f6efda8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:17:33, skipping insertion in model container [2023-08-29 02:17:33,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:17:33" (1/1) ... [2023-08-29 02:17:33,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:17:33,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:17:34,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:17:34,207 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:17:34,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:17:34,351 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:17:34,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:17:34 WrapperNode [2023-08-29 02:17:34,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:17:34,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:17:34,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:17:34,353 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:17:34,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:17:34" (1/1) ... [2023-08-29 02:17:34,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:17:34" (1/1) ... [2023-08-29 02:17:34,444 INFO L138 Inliner]: procedures = 368, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 232 [2023-08-29 02:17:34,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:17:34,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:17:34,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:17:34,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:17:34,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:17:34" (1/1) ... [2023-08-29 02:17:34,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:17:34" (1/1) ... [2023-08-29 02:17:34,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:17:34" (1/1) ... [2023-08-29 02:17:34,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:17:34" (1/1) ... [2023-08-29 02:17:34,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:17:34" (1/1) ... [2023-08-29 02:17:34,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:17:34" (1/1) ... [2023-08-29 02:17:34,517 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:17:34" (1/1) ... [2023-08-29 02:17:34,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:17:34" (1/1) ... [2023-08-29 02:17:34,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:17:34,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:17:34,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:17:34,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:17:34,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:17:34" (1/1) ... [2023-08-29 02:17:34,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:17:34,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:17:34,566 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 02:17:34,592 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 02:17:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:17:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 02:17:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:17:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:17:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:17:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:17:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 02:17:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:17:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 02:17:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:17:34,611 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:17:34,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:17:34,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:17:34,612 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 02:17:34,823 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:17:34,824 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:17:35,257 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:17:35,265 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:17:35,265 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-29 02:17:35,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:17:35 BoogieIcfgContainer [2023-08-29 02:17:35,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:17:35,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:17:35,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:17:35,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:17:35,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:17:33" (1/3) ... [2023-08-29 02:17:35,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc880f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:17:35, skipping insertion in model container [2023-08-29 02:17:35,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:17:34" (2/3) ... [2023-08-29 02:17:35,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc880f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:17:35, skipping insertion in model container [2023-08-29 02:17:35,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:17:35" (3/3) ... [2023-08-29 02:17:35,281 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_16-arrayloop_rc.i [2023-08-29 02:17:35,287 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:17:35,293 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:17:35,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-29 02:17:35,293 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:17:35,384 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:17:35,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 255 transitions, 515 flow [2023-08-29 02:17:35,526 INFO L130 PetriNetUnfolder]: 6/254 cut-off events. [2023-08-29 02:17:35,527 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:17:35,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 254 events. 6/254 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 405 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 191. Up to 2 conditions per place. [2023-08-29 02:17:35,536 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 255 transitions, 515 flow [2023-08-29 02:17:35,546 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 254 transitions, 511 flow [2023-08-29 02:17:35,550 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:17:35,558 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 252 places, 254 transitions, 511 flow [2023-08-29 02:17:35,560 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 252 places, 254 transitions, 511 flow [2023-08-29 02:17:35,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 254 transitions, 511 flow [2023-08-29 02:17:35,630 INFO L130 PetriNetUnfolder]: 6/254 cut-off events. [2023-08-29 02:17:35,631 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:17:35,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 254 events. 6/254 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 405 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 191. Up to 2 conditions per place. [2023-08-29 02:17:35,644 INFO L119 LiptonReduction]: Number of co-enabled transitions 17820 [2023-08-29 02:17:51,863 INFO L134 LiptonReduction]: Checked pairs total: 108171 [2023-08-29 02:17:51,863 INFO L136 LiptonReduction]: Total number of compositions: 147 [2023-08-29 02:17:51,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:17:51,884 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;@284533e6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:17:51,884 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-29 02:17:51,887 INFO L130 PetriNetUnfolder]: 1/3 cut-off events. [2023-08-29 02:17:51,887 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:17:51,888 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:51,888 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-29 02:17:51,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:17:51,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:51,893 INFO L85 PathProgramCache]: Analyzing trace with hash 25566, now seen corresponding path program 1 times [2023-08-29 02:17:51,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:51,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609871306] [2023-08-29 02:17:51,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:51,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:52,074 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 02:17:52,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:52,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609871306] [2023-08-29 02:17:52,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609871306] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:17:52,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:17:52,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 02:17:52,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901694630] [2023-08-29 02:17:52,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:17:52,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 02:17:52,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:52,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 02:17:52,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 02:17:52,117 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 402 [2023-08-29 02:17:52,122 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 122 transitions, 247 flow. Second operand has 2 states, 2 states have (on average 252.0) internal successors, (504), 2 states have internal predecessors, (504), 0 states have call successors, (0), 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 02:17:52,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:52,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 402 [2023-08-29 02:17:52,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:52,501 INFO L130 PetriNetUnfolder]: 376/1700 cut-off events. [2023-08-29 02:17:52,501 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:17:52,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2457 conditions, 1700 events. 376/1700 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 10916 event pairs, 336 based on Foata normal form. 0/1615 useless extension candidates. Maximal degree in co-relation 2444. Up to 753 conditions per place. [2023-08-29 02:17:52,510 INFO L137 encePairwiseOnDemand]: 399/402 looper letters, 43 selfloop transitions, 0 changer transitions 0/119 dead transitions. [2023-08-29 02:17:52,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 119 transitions, 327 flow [2023-08-29 02:17:52,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 02:17:52,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 02:17:52,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 548 transitions. [2023-08-29 02:17:52,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.681592039800995 [2023-08-29 02:17:52,529 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 548 transitions. [2023-08-29 02:17:52,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 548 transitions. [2023-08-29 02:17:52,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:52,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 548 transitions. [2023-08-29 02:17:52,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 274.0) internal successors, (548), 2 states have internal predecessors, (548), 0 states have call successors, (0), 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 02:17:52,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 402.0) internal successors, (1206), 3 states have internal predecessors, (1206), 0 states have call successors, (0), 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 02:17:52,544 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 402.0) internal successors, (1206), 3 states have internal predecessors, (1206), 0 states have call successors, (0), 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 02:17:52,545 INFO L175 Difference]: Start difference. First operand has 123 places, 122 transitions, 247 flow. Second operand 2 states and 548 transitions. [2023-08-29 02:17:52,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 119 transitions, 327 flow [2023-08-29 02:17:52,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 119 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:17:52,551 INFO L231 Difference]: Finished difference. Result has 120 places, 119 transitions, 240 flow [2023-08-29 02:17:52,552 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=240, PETRI_PLACES=120, PETRI_TRANSITIONS=119} [2023-08-29 02:17:52,555 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, -3 predicate places. [2023-08-29 02:17:52,555 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 119 transitions, 240 flow [2023-08-29 02:17:52,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 252.0) internal successors, (504), 2 states have internal predecessors, (504), 0 states have call successors, (0), 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 02:17:52,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:52,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:52,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:17:52,556 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:17:52,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:52,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1621363482, now seen corresponding path program 1 times [2023-08-29 02:17:52,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:52,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199755866] [2023-08-29 02:17:52,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:52,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:52,683 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 02:17:52,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:52,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199755866] [2023-08-29 02:17:52,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199755866] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:17:52,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:17:52,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:17:52,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717876127] [2023-08-29 02:17:52,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:17:52,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:17:52,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:52,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:17:52,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:17:52,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 402 [2023-08-29 02:17:52,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 119 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 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 02:17:52,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:52,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 402 [2023-08-29 02:17:52,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:53,324 INFO L130 PetriNetUnfolder]: 716/3057 cut-off events. [2023-08-29 02:17:53,324 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:17:53,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4495 conditions, 3057 events. 716/3057 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 20536 event pairs, 336 based on Foata normal form. 0/2921 useless extension candidates. Maximal degree in co-relation 4492. Up to 753 conditions per place. [2023-08-29 02:17:53,337 INFO L137 encePairwiseOnDemand]: 396/402 looper letters, 77 selfloop transitions, 4 changer transitions 0/157 dead transitions. [2023-08-29 02:17:53,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 157 transitions, 478 flow [2023-08-29 02:17:53,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:17:53,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:17:53,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2023-08-29 02:17:53,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6733001658374793 [2023-08-29 02:17:53,341 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2023-08-29 02:17:53,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2023-08-29 02:17:53,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:53,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2023-08-29 02:17:53,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 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 02:17:53,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 402.0) internal successors, (1608), 4 states have internal predecessors, (1608), 0 states have call successors, (0), 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 02:17:53,347 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 402.0) internal successors, (1608), 4 states have internal predecessors, (1608), 0 states have call successors, (0), 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 02:17:53,347 INFO L175 Difference]: Start difference. First operand has 120 places, 119 transitions, 240 flow. Second operand 3 states and 812 transitions. [2023-08-29 02:17:53,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 157 transitions, 478 flow [2023-08-29 02:17:53,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 157 transitions, 478 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:17:53,352 INFO L231 Difference]: Finished difference. Result has 123 places, 121 transitions, 264 flow [2023-08-29 02:17:53,352 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=123, PETRI_TRANSITIONS=121} [2023-08-29 02:17:53,353 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 0 predicate places. [2023-08-29 02:17:53,356 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 121 transitions, 264 flow [2023-08-29 02:17:53,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 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 02:17:53,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:53,357 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:53,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:17:53,358 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:17:53,361 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:53,361 INFO L85 PathProgramCache]: Analyzing trace with hash -621239689, now seen corresponding path program 1 times [2023-08-29 02:17:53,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:53,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904748123] [2023-08-29 02:17:53,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:53,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:53,529 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 02:17:53,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:53,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904748123] [2023-08-29 02:17:53,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904748123] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:17:53,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133094592] [2023-08-29 02:17:53,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:53,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:17:53,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:17:53,534 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 02:17:53,538 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 02:17:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:53,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 02:17:53,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:17:53,677 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 02:17:53,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:17:53,692 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 02:17:53,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133094592] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:17:53,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:17:53,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-29 02:17:53,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729772138] [2023-08-29 02:17:53,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:17:53,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 02:17:53,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:53,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 02:17:53,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-29 02:17:53,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 402 [2023-08-29 02:17:53,904 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 121 transitions, 264 flow. Second operand has 7 states, 7 states have (on average 242.85714285714286) internal successors, (1700), 7 states have internal predecessors, (1700), 0 states have call successors, (0), 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 02:17:53,904 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:53,904 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 402 [2023-08-29 02:17:53,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:55,305 INFO L130 PetriNetUnfolder]: 1413/6102 cut-off events. [2023-08-29 02:17:55,305 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2023-08-29 02:17:55,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9066 conditions, 6102 events. 1413/6102 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 41949 event pairs, 229 based on Foata normal form. 51/5965 useless extension candidates. Maximal degree in co-relation 9061. Up to 698 conditions per place. [2023-08-29 02:17:55,329 INFO L137 encePairwiseOnDemand]: 395/402 looper letters, 165 selfloop transitions, 11 changer transitions 0/252 dead transitions. [2023-08-29 02:17:55,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 252 transitions, 888 flow [2023-08-29 02:17:55,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:17:55,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:17:55,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1628 transitions. [2023-08-29 02:17:55,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6749585406301825 [2023-08-29 02:17:55,333 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1628 transitions. [2023-08-29 02:17:55,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1628 transitions. [2023-08-29 02:17:55,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:55,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1628 transitions. [2023-08-29 02:17:55,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 271.3333333333333) internal successors, (1628), 6 states have internal predecessors, (1628), 0 states have call successors, (0), 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 02:17:55,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 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 02:17:55,343 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 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 02:17:55,343 INFO L175 Difference]: Start difference. First operand has 123 places, 121 transitions, 264 flow. Second operand 6 states and 1628 transitions. [2023-08-29 02:17:55,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 252 transitions, 888 flow [2023-08-29 02:17:55,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 252 transitions, 884 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:17:55,349 INFO L231 Difference]: Finished difference. Result has 131 places, 127 transitions, 338 flow [2023-08-29 02:17:55,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=131, PETRI_TRANSITIONS=127} [2023-08-29 02:17:55,350 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 8 predicate places. [2023-08-29 02:17:55,350 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 127 transitions, 338 flow [2023-08-29 02:17:55,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 242.85714285714286) internal successors, (1700), 7 states have internal predecessors, (1700), 0 states have call successors, (0), 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 02:17:55,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:55,352 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:55,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 02:17:55,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:17:55,560 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:17:55,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:55,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1665303974, now seen corresponding path program 2 times [2023-08-29 02:17:55,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:55,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517657213] [2023-08-29 02:17:55,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:55,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:55,795 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:17:55,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:55,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517657213] [2023-08-29 02:17:55,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517657213] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:17:55,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525001148] [2023-08-29 02:17:55,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 02:17:55,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:17:55,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:17:55,798 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:17:55,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 02:17:55,937 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 02:17:55,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:17:55,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-29 02:17:55,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:17:55,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-29 02:17:55,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-29 02:17:56,020 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 02:17:56,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 02:17:56,052 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 02:17:56,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 02:17:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 02:17:56,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 02:17:56,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525001148] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:17:56,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 02:17:56,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 12 [2023-08-29 02:17:56,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223095023] [2023-08-29 02:17:56,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:17:56,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 02:17:56,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:56,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 02:17:56,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:17:56,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 402 [2023-08-29 02:17:56,386 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 127 transitions, 338 flow. Second operand has 7 states, 7 states have (on average 178.85714285714286) internal successors, (1252), 7 states have internal predecessors, (1252), 0 states have call successors, (0), 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 02:17:56,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:56,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 402 [2023-08-29 02:17:56,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:59,642 INFO L130 PetriNetUnfolder]: 9007/20807 cut-off events. [2023-08-29 02:17:59,642 INFO L131 PetriNetUnfolder]: For 1582/1582 co-relation queries the response was YES. [2023-08-29 02:17:59,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39843 conditions, 20807 events. 9007/20807 cut-off events. For 1582/1582 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 139575 event pairs, 708 based on Foata normal form. 0/19912 useless extension candidates. Maximal degree in co-relation 39835. Up to 15146 conditions per place. [2023-08-29 02:17:59,734 INFO L137 encePairwiseOnDemand]: 358/402 looper letters, 253 selfloop transitions, 151 changer transitions 0/428 dead transitions. [2023-08-29 02:17:59,734 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 428 transitions, 1958 flow [2023-08-29 02:17:59,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 02:17:59,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 02:17:59,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1616 transitions. [2023-08-29 02:17:59,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.574271499644634 [2023-08-29 02:17:59,739 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1616 transitions. [2023-08-29 02:17:59,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1616 transitions. [2023-08-29 02:17:59,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:59,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1616 transitions. [2023-08-29 02:17:59,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 230.85714285714286) internal successors, (1616), 7 states have internal predecessors, (1616), 0 states have call successors, (0), 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 02:17:59,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 0 states have call successors, (0), 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 02:17:59,749 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 0 states have call successors, (0), 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 02:17:59,749 INFO L175 Difference]: Start difference. First operand has 131 places, 127 transitions, 338 flow. Second operand 7 states and 1616 transitions. [2023-08-29 02:17:59,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 428 transitions, 1958 flow [2023-08-29 02:17:59,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 428 transitions, 1902 flow, removed 21 selfloop flow, removed 1 redundant places. [2023-08-29 02:17:59,767 INFO L231 Difference]: Finished difference. Result has 141 places, 312 transitions, 1450 flow [2023-08-29 02:17:59,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1450, PETRI_PLACES=141, PETRI_TRANSITIONS=312} [2023-08-29 02:17:59,769 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 18 predicate places. [2023-08-29 02:17:59,771 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 312 transitions, 1450 flow [2023-08-29 02:17:59,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 178.85714285714286) internal successors, (1252), 7 states have internal predecessors, (1252), 0 states have call successors, (0), 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 02:17:59,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:59,772 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:59,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 02:17:59,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-29 02:17:59,978 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:17:59,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:59,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1104611333, now seen corresponding path program 1 times [2023-08-29 02:17:59,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:59,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989317715] [2023-08-29 02:17:59,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:59,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:18:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:18:00,222 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:18:00,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:18:00,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989317715] [2023-08-29 02:18:00,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989317715] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:18:00,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467474626] [2023-08-29 02:18:00,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:18:00,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:18:00,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:18:00,225 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:18:00,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 02:18:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:18:00,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 02:18:00,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:18:00,516 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:18:00,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:18:00,567 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:18:00,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467474626] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:18:00,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:18:00,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-29 02:18:00,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327949180] [2023-08-29 02:18:00,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:18:00,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 02:18:00,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:18:00,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 02:18:00,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-29 02:18:00,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 402 [2023-08-29 02:18:00,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 312 transitions, 1450 flow. Second operand has 13 states, 13 states have (on average 242.53846153846155) internal successors, (3153), 13 states have internal predecessors, (3153), 0 states have call successors, (0), 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 02:18:00,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:18:00,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 402 [2023-08-29 02:18:00,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:18:06,775 INFO L130 PetriNetUnfolder]: 6709/23511 cut-off events. [2023-08-29 02:18:06,776 INFO L131 PetriNetUnfolder]: For 5849/6098 co-relation queries the response was YES. [2023-08-29 02:18:06,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51819 conditions, 23511 events. 6709/23511 cut-off events. For 5849/6098 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 171484 event pairs, 21 based on Foata normal form. 163/23280 useless extension candidates. Maximal degree in co-relation 51805. Up to 9342 conditions per place. [2023-08-29 02:18:06,901 INFO L137 encePairwiseOnDemand]: 395/402 looper letters, 553 selfloop transitions, 23 changer transitions 0/820 dead transitions. [2023-08-29 02:18:06,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 820 transitions, 4376 flow [2023-08-29 02:18:06,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:18:06,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:18:06,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3308 transitions. [2023-08-29 02:18:06,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.685737976782753 [2023-08-29 02:18:06,908 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3308 transitions. [2023-08-29 02:18:06,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3308 transitions. [2023-08-29 02:18:06,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:18:06,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3308 transitions. [2023-08-29 02:18:06,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 275.6666666666667) internal successors, (3308), 12 states have internal predecessors, (3308), 0 states have call successors, (0), 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 02:18:06,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 402.0) internal successors, (5226), 13 states have internal predecessors, (5226), 0 states have call successors, (0), 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 02:18:06,924 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 402.0) internal successors, (5226), 13 states have internal predecessors, (5226), 0 states have call successors, (0), 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 02:18:06,924 INFO L175 Difference]: Start difference. First operand has 141 places, 312 transitions, 1450 flow. Second operand 12 states and 3308 transitions. [2023-08-29 02:18:06,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 820 transitions, 4376 flow [2023-08-29 02:18:07,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 820 transitions, 4376 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:18:07,219 INFO L231 Difference]: Finished difference. Result has 159 places, 325 transitions, 1632 flow [2023-08-29 02:18:07,220 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1450, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1632, PETRI_PLACES=159, PETRI_TRANSITIONS=325} [2023-08-29 02:18:07,222 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 36 predicate places. [2023-08-29 02:18:07,222 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 325 transitions, 1632 flow [2023-08-29 02:18:07,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 242.53846153846155) internal successors, (3153), 13 states have internal predecessors, (3153), 0 states have call successors, (0), 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 02:18:07,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:18:07,224 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:18:07,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-29 02:18:07,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:18:07,431 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:18:07,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:18:07,432 INFO L85 PathProgramCache]: Analyzing trace with hash 2058752731, now seen corresponding path program 2 times [2023-08-29 02:18:07,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:18:07,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510773473] [2023-08-29 02:18:07,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:18:07,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:18:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:18:08,418 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:18:08,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:18:08,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510773473] [2023-08-29 02:18:08,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510773473] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:18:08,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:18:08,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:18:08,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527142246] [2023-08-29 02:18:08,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:18:08,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:18:08,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:18:08,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:18:08,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:18:08,765 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 402 [2023-08-29 02:18:08,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 325 transitions, 1632 flow. Second operand has 6 states, 6 states have (on average 177.16666666666666) internal successors, (1063), 6 states have internal predecessors, (1063), 0 states have call successors, (0), 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 02:18:08,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:18:08,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 402 [2023-08-29 02:18:08,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:18:20,347 INFO L130 PetriNetUnfolder]: 24557/55220 cut-off events. [2023-08-29 02:18:20,347 INFO L131 PetriNetUnfolder]: For 19804/20050 co-relation queries the response was YES. [2023-08-29 02:18:20,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136541 conditions, 55220 events. 24557/55220 cut-off events. For 19804/20050 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 370961 event pairs, 7520 based on Foata normal form. 0/54245 useless extension candidates. Maximal degree in co-relation 136520. Up to 47529 conditions per place. [2023-08-29 02:18:20,704 INFO L137 encePairwiseOnDemand]: 372/402 looper letters, 339 selfloop transitions, 109 changer transitions 0/492 dead transitions. [2023-08-29 02:18:20,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 492 transitions, 2954 flow [2023-08-29 02:18:20,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:18:20,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:18:20,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1306 transitions. [2023-08-29 02:18:20,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5414593698175788 [2023-08-29 02:18:20,714 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1306 transitions. [2023-08-29 02:18:20,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1306 transitions. [2023-08-29 02:18:20,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:18:20,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1306 transitions. [2023-08-29 02:18:20,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 217.66666666666666) internal successors, (1306), 6 states have internal predecessors, (1306), 0 states have call successors, (0), 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 02:18:20,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 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 02:18:20,727 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 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 02:18:20,727 INFO L175 Difference]: Start difference. First operand has 159 places, 325 transitions, 1632 flow. Second operand 6 states and 1306 transitions. [2023-08-29 02:18:20,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 492 transitions, 2954 flow [2023-08-29 02:18:20,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 492 transitions, 2928 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-29 02:18:20,932 INFO L231 Difference]: Finished difference. Result has 165 places, 428 transitions, 2261 flow [2023-08-29 02:18:20,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1606, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2261, PETRI_PLACES=165, PETRI_TRANSITIONS=428} [2023-08-29 02:18:20,933 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 42 predicate places. [2023-08-29 02:18:20,933 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 428 transitions, 2261 flow [2023-08-29 02:18:20,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.16666666666666) internal successors, (1063), 6 states have internal predecessors, (1063), 0 states have call successors, (0), 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 02:18:20,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:18:20,934 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:18:20,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:18:20,935 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:18:20,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:18:20,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1375590774, now seen corresponding path program 1 times [2023-08-29 02:18:20,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:18:20,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130256344] [2023-08-29 02:18:20,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:18:20,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:18:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:18:22,228 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:18:22,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:18:22,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130256344] [2023-08-29 02:18:22,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130256344] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:18:22,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:18:22,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:18:22,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166620627] [2023-08-29 02:18:22,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:18:22,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:18:22,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:18:22,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:18:22,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 02:18:23,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 02:18:23,117 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 428 transitions, 2261 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 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 02:18:23,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:18:23,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 02:18:23,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:18:45,725 INFO L130 PetriNetUnfolder]: 46463/104592 cut-off events. [2023-08-29 02:18:45,725 INFO L131 PetriNetUnfolder]: For 55044/55564 co-relation queries the response was YES. [2023-08-29 02:18:46,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296858 conditions, 104592 events. 46463/104592 cut-off events. For 55044/55564 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 812439 event pairs, 2415 based on Foata normal form. 190/102591 useless extension candidates. Maximal degree in co-relation 296832. Up to 42920 conditions per place. [2023-08-29 02:18:46,389 INFO L137 encePairwiseOnDemand]: 364/402 looper letters, 855 selfloop transitions, 157 changer transitions 1/1053 dead transitions. [2023-08-29 02:18:46,389 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 1053 transitions, 7657 flow [2023-08-29 02:18:46,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 02:18:46,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 02:18:46,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2767 transitions. [2023-08-29 02:18:46,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5294680443934175 [2023-08-29 02:18:46,397 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2767 transitions. [2023-08-29 02:18:46,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2767 transitions. [2023-08-29 02:18:46,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:18:46,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2767 transitions. [2023-08-29 02:18:46,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 212.84615384615384) internal successors, (2767), 13 states have internal predecessors, (2767), 0 states have call successors, (0), 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 02:18:46,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 402.0) internal successors, (5628), 14 states have internal predecessors, (5628), 0 states have call successors, (0), 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 02:18:46,412 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 402.0) internal successors, (5628), 14 states have internal predecessors, (5628), 0 states have call successors, (0), 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 02:18:46,412 INFO L175 Difference]: Start difference. First operand has 165 places, 428 transitions, 2261 flow. Second operand 13 states and 2767 transitions. [2023-08-29 02:18:46,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 1053 transitions, 7657 flow [2023-08-29 02:18:47,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 1053 transitions, 7585 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-08-29 02:18:47,646 INFO L231 Difference]: Finished difference. Result has 188 places, 585 transitions, 4179 flow [2023-08-29 02:18:47,647 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=2237, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4179, PETRI_PLACES=188, PETRI_TRANSITIONS=585} [2023-08-29 02:18:47,648 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 65 predicate places. [2023-08-29 02:18:47,648 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 585 transitions, 4179 flow [2023-08-29 02:18:47,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 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 02:18:47,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:18:47,649 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:18:47,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:18:47,649 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:18:47,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:18:47,650 INFO L85 PathProgramCache]: Analyzing trace with hash 869726804, now seen corresponding path program 2 times [2023-08-29 02:18:47,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:18:47,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118352794] [2023-08-29 02:18:47,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:18:47,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:18:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:18:48,701 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:18:48,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:18:48,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118352794] [2023-08-29 02:18:48,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118352794] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:18:48,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:18:48,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:18:48,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076337993] [2023-08-29 02:18:48,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:18:48,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:18:48,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:18:48,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:18:48,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 02:18:49,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 02:18:49,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 585 transitions, 4179 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 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 02:18:49,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:18:49,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 02:18:49,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:19:16,713 INFO L130 PetriNetUnfolder]: 46323/104382 cut-off events. [2023-08-29 02:19:16,713 INFO L131 PetriNetUnfolder]: For 98754/99304 co-relation queries the response was YES. [2023-08-29 02:19:17,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321478 conditions, 104382 events. 46323/104382 cut-off events. For 98754/99304 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 809809 event pairs, 3784 based on Foata normal form. 110/102451 useless extension candidates. Maximal degree in co-relation 321440. Up to 49188 conditions per place. [2023-08-29 02:19:17,475 INFO L137 encePairwiseOnDemand]: 362/402 looper letters, 838 selfloop transitions, 168 changer transitions 2/1048 dead transitions. [2023-08-29 02:19:17,475 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 1048 transitions, 8698 flow [2023-08-29 02:19:17,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:19:17,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:19:17,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2895 transitions. [2023-08-29 02:19:17,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5143923240938166 [2023-08-29 02:19:17,483 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2895 transitions. [2023-08-29 02:19:17,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2895 transitions. [2023-08-29 02:19:17,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:19:17,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2895 transitions. [2023-08-29 02:19:17,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 206.78571428571428) internal successors, (2895), 14 states have internal predecessors, (2895), 0 states have call successors, (0), 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 02:19:17,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 402.0) internal successors, (6030), 15 states have internal predecessors, (6030), 0 states have call successors, (0), 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 02:19:17,499 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 402.0) internal successors, (6030), 15 states have internal predecessors, (6030), 0 states have call successors, (0), 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 02:19:17,500 INFO L175 Difference]: Start difference. First operand has 188 places, 585 transitions, 4179 flow. Second operand 14 states and 2895 transitions. [2023-08-29 02:19:17,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 1048 transitions, 8698 flow [2023-08-29 02:19:21,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 1048 transitions, 8698 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:19:21,415 INFO L231 Difference]: Finished difference. Result has 211 places, 628 transitions, 5307 flow [2023-08-29 02:19:21,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=4179, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5307, PETRI_PLACES=211, PETRI_TRANSITIONS=628} [2023-08-29 02:19:21,416 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 88 predicate places. [2023-08-29 02:19:21,416 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 628 transitions, 5307 flow [2023-08-29 02:19:21,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 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 02:19:21,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:19:21,417 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:19:21,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 02:19:21,417 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:19:21,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:19:21,418 INFO L85 PathProgramCache]: Analyzing trace with hash -367352326, now seen corresponding path program 1 times [2023-08-29 02:19:21,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:19:21,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828446252] [2023-08-29 02:19:21,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:19:21,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:19:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:19:22,415 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:19:22,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:19:22,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828446252] [2023-08-29 02:19:22,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828446252] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:19:22,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:19:22,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:19:22,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246021486] [2023-08-29 02:19:22,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:19:22,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:19:22,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:19:22,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:19:22,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-29 02:19:23,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 02:19:23,014 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 628 transitions, 5307 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 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 02:19:23,014 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:19:23,014 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 02:19:23,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:19:52,247 INFO L130 PetriNetUnfolder]: 47457/107302 cut-off events. [2023-08-29 02:19:52,247 INFO L131 PetriNetUnfolder]: For 150652/152552 co-relation queries the response was YES. [2023-08-29 02:19:52,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347243 conditions, 107302 events. 47457/107302 cut-off events. For 150652/152552 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 828014 event pairs, 21775 based on Foata normal form. 22/105462 useless extension candidates. Maximal degree in co-relation 347194. Up to 90415 conditions per place. [2023-08-29 02:19:53,054 INFO L137 encePairwiseOnDemand]: 369/402 looper letters, 561 selfloop transitions, 154 changer transitions 1/760 dead transitions. [2023-08-29 02:19:53,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 760 transitions, 7379 flow [2023-08-29 02:19:53,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 02:19:53,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 02:19:53,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1687 transitions. [2023-08-29 02:19:53,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5245646766169154 [2023-08-29 02:19:53,059 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1687 transitions. [2023-08-29 02:19:53,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1687 transitions. [2023-08-29 02:19:53,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:19:53,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1687 transitions. [2023-08-29 02:19:53,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 210.875) internal successors, (1687), 8 states have internal predecessors, (1687), 0 states have call successors, (0), 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 02:19:53,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 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 02:19:53,068 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 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 02:19:53,068 INFO L175 Difference]: Start difference. First operand has 211 places, 628 transitions, 5307 flow. Second operand 8 states and 1687 transitions. [2023-08-29 02:19:53,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 760 transitions, 7379 flow [2023-08-29 02:19:57,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 760 transitions, 6891 flow, removed 175 selfloop flow, removed 1 redundant places. [2023-08-29 02:19:57,268 INFO L231 Difference]: Finished difference. Result has 219 places, 633 transitions, 5248 flow [2023-08-29 02:19:57,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=4853, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5248, PETRI_PLACES=219, PETRI_TRANSITIONS=633} [2023-08-29 02:19:57,269 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 96 predicate places. [2023-08-29 02:19:57,270 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 633 transitions, 5248 flow [2023-08-29 02:19:57,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 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 02:19:57,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:19:57,270 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:19:57,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 02:19:57,271 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:19:57,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:19:57,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1605052882, now seen corresponding path program 2 times [2023-08-29 02:19:57,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:19:57,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537182410] [2023-08-29 02:19:57,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:19:57,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:19:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:19:58,205 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:19:58,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:19:58,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537182410] [2023-08-29 02:19:58,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537182410] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:19:58,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:19:58,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:19:58,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787663092] [2023-08-29 02:19:58,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:19:58,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:19:58,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:19:58,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:19:58,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 02:19:59,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 02:19:59,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 633 transitions, 5248 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 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 02:19:59,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:19:59,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 02:19:59,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:25,561 INFO L130 PetriNetUnfolder]: 48267/109286 cut-off events. [2023-08-29 02:20:25,562 INFO L131 PetriNetUnfolder]: For 130865/132815 co-relation queries the response was YES. [2023-08-29 02:20:26,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357276 conditions, 109286 events. 48267/109286 cut-off events. For 130865/132815 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 853046 event pairs, 2908 based on Foata normal form. 80/107473 useless extension candidates. Maximal degree in co-relation 357225. Up to 49677 conditions per place. [2023-08-29 02:20:26,497 INFO L137 encePairwiseOnDemand]: 375/402 looper letters, 863 selfloop transitions, 123 changer transitions 2/1032 dead transitions. [2023-08-29 02:20:26,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 1032 transitions, 9509 flow [2023-08-29 02:20:26,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:20:26,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:20:26,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2136 transitions. [2023-08-29 02:20:26,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5313432835820896 [2023-08-29 02:20:26,501 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2136 transitions. [2023-08-29 02:20:26,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2136 transitions. [2023-08-29 02:20:26,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:26,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2136 transitions. [2023-08-29 02:20:26,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 213.6) internal successors, (2136), 10 states have internal predecessors, (2136), 0 states have call successors, (0), 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 02:20:26,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 402.0) internal successors, (4422), 11 states have internal predecessors, (4422), 0 states have call successors, (0), 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 02:20:26,510 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 402.0) internal successors, (4422), 11 states have internal predecessors, (4422), 0 states have call successors, (0), 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 02:20:26,510 INFO L175 Difference]: Start difference. First operand has 219 places, 633 transitions, 5248 flow. Second operand 10 states and 2136 transitions. [2023-08-29 02:20:26,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 1032 transitions, 9509 flow [2023-08-29 02:20:30,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 1032 transitions, 9067 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 02:20:30,471 INFO L231 Difference]: Finished difference. Result has 229 places, 735 transitions, 6274 flow [2023-08-29 02:20:30,472 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=4979, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6274, PETRI_PLACES=229, PETRI_TRANSITIONS=735} [2023-08-29 02:20:30,472 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 106 predicate places. [2023-08-29 02:20:30,472 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 735 transitions, 6274 flow [2023-08-29 02:20:30,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 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 02:20:30,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:30,473 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:20:30,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 02:20:30,473 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:20:30,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:30,474 INFO L85 PathProgramCache]: Analyzing trace with hash 11992814, now seen corresponding path program 3 times [2023-08-29 02:20:30,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:30,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421730132] [2023-08-29 02:20:30,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:30,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:20:31,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:31,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421730132] [2023-08-29 02:20:31,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421730132] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:31,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:31,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:20:31,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388713309] [2023-08-29 02:20:31,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:31,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:20:31,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:31,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:20:31,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 02:20:32,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 02:20:32,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 735 transitions, 6274 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 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 02:20:32,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:32,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 02:20:32,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:02,243 INFO L130 PetriNetUnfolder]: 48607/109682 cut-off events. [2023-08-29 02:21:02,243 INFO L131 PetriNetUnfolder]: For 180708/182658 co-relation queries the response was YES. [2023-08-29 02:21:03,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375299 conditions, 109682 events. 48607/109682 cut-off events. For 180708/182658 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 847451 event pairs, 21815 based on Foata normal form. 42/107862 useless extension candidates. Maximal degree in co-relation 375242. Up to 92035 conditions per place. [2023-08-29 02:21:03,467 INFO L137 encePairwiseOnDemand]: 369/402 looper letters, 598 selfloop transitions, 243 changer transitions 1/886 dead transitions. [2023-08-29 02:21:03,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 886 transitions, 8732 flow [2023-08-29 02:21:03,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 02:21:03,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 02:21:03,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1874 transitions. [2023-08-29 02:21:03,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5179657269209508 [2023-08-29 02:21:03,470 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1874 transitions. [2023-08-29 02:21:03,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1874 transitions. [2023-08-29 02:21:03,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:03,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1874 transitions. [2023-08-29 02:21:03,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 208.22222222222223) internal successors, (1874), 9 states have internal predecessors, (1874), 0 states have call successors, (0), 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 02:21:03,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 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 02:21:03,477 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 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 02:21:03,477 INFO L175 Difference]: Start difference. First operand has 229 places, 735 transitions, 6274 flow. Second operand 9 states and 1874 transitions. [2023-08-29 02:21:03,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 886 transitions, 8732 flow [2023-08-29 02:21:08,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 886 transitions, 8710 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-29 02:21:08,080 INFO L231 Difference]: Finished difference. Result has 239 places, 748 transitions, 7040 flow [2023-08-29 02:21:08,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=6252, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=735, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7040, PETRI_PLACES=239, PETRI_TRANSITIONS=748} [2023-08-29 02:21:08,081 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 116 predicate places. [2023-08-29 02:21:08,081 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 748 transitions, 7040 flow [2023-08-29 02:21:08,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 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 02:21:08,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:08,081 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:21:08,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 02:21:08,081 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:21:08,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:08,082 INFO L85 PathProgramCache]: Analyzing trace with hash -800353708, now seen corresponding path program 3 times [2023-08-29 02:21:08,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:08,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459742164] [2023-08-29 02:21:08,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:08,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:09,002 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:21:09,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:09,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459742164] [2023-08-29 02:21:09,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459742164] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:09,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:09,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:21:09,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178297633] [2023-08-29 02:21:09,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:09,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:21:09,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:09,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:21:09,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-29 02:21:09,426 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 02:21:09,427 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 748 transitions, 7040 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 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 02:21:09,427 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:09,427 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 02:21:09,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:38,837 INFO L130 PetriNetUnfolder]: 47559/107625 cut-off events. [2023-08-29 02:21:38,838 INFO L131 PetriNetUnfolder]: For 225388/227738 co-relation queries the response was YES. [2023-08-29 02:21:39,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383656 conditions, 107625 events. 47559/107625 cut-off events. For 225388/227738 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 832359 event pairs, 16377 based on Foata normal form. 160/105504 useless extension candidates. Maximal degree in co-relation 383595. Up to 82853 conditions per place. [2023-08-29 02:21:40,065 INFO L137 encePairwiseOnDemand]: 356/402 looper letters, 587 selfloop transitions, 335 changer transitions 0/962 dead transitions. [2023-08-29 02:21:40,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 962 transitions, 10163 flow [2023-08-29 02:21:40,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 02:21:40,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 02:21:40,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1973 transitions. [2023-08-29 02:21:40,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5453289110005528 [2023-08-29 02:21:40,069 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1973 transitions. [2023-08-29 02:21:40,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1973 transitions. [2023-08-29 02:21:40,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:40,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1973 transitions. [2023-08-29 02:21:40,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 219.22222222222223) internal successors, (1973), 9 states have internal predecessors, (1973), 0 states have call successors, (0), 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 02:21:40,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 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 02:21:40,077 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 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 02:21:40,077 INFO L175 Difference]: Start difference. First operand has 239 places, 748 transitions, 7040 flow. Second operand 9 states and 1973 transitions. [2023-08-29 02:21:40,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 962 transitions, 10163 flow