./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b8273370cd4ec5730806cf9b8f54c915e93daab6c48b9546d3920e402afdc55 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 21:52:09,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:52:09,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:52:09,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:52:09,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:52:09,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:52:09,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:52:09,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:52:09,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:52:09,745 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:52:09,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:52:09,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:52:09,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:52:09,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:52:09,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:52:09,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:52:09,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:52:09,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:52:09,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:52:09,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:52:09,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:52:09,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:52:09,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:52:09,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:52:09,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:52:09,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:52:09,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:52:09,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:52:09,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:52:09,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:52:09,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:52:09,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:52:09,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:52:09,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:52:09,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:52:09,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:52:09,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:52:09,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:52:09,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:52:09,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:52:09,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:52:09,796 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:52:09,816 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:52:09,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:52:09,818 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:52:09,818 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:52:09,819 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:52:09,819 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:52:09,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:52:09,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:52:09,821 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:52:09,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:52:09,822 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:52:09,822 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:52:09,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:52:09,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:52:09,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:52:09,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:52:09,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:52:09,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:52:09,823 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:52:09,823 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:52:09,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:52:09,824 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:52:09,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:52:09,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:52:09,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:52:09,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:52:09,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:52:09,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:52:09,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:52:09,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:52:09,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:52:09,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:52:09,826 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:52:09,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:52:09,827 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:52:09,827 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:52:09,827 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:52:09,827 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b8273370cd4ec5730806cf9b8f54c915e93daab6c48b9546d3920e402afdc55 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:52:10,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:52:10,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:52:10,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:52:10,085 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:52:10,085 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:52:10,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2023-08-31 21:52:11,103 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:52:11,295 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:52:11,296 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2023-08-31 21:52:11,301 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41661a4cf/c9bceb2bf7e4443fb6b5ba0e5c14dc54/FLAG08217e507 [2023-08-31 21:52:11,315 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41661a4cf/c9bceb2bf7e4443fb6b5ba0e5c14dc54 [2023-08-31 21:52:11,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:52:11,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:52:11,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:52:11,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:52:11,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:52:11,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:52:11" (1/1) ... [2023-08-31 21:52:11,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25a60f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:11, skipping insertion in model container [2023-08-31 21:52:11,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:52:11" (1/1) ... [2023-08-31 21:52:11,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:52:11,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:52:11,488 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2691,2704] [2023-08-31 21:52:11,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:52:11,501 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:52:11,521 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c[2691,2704] [2023-08-31 21:52:11,523 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:52:11,529 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 21:52:11,529 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 21:52:11,534 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:52:11,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:11 WrapperNode [2023-08-31 21:52:11,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:52:11,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:52:11,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:52:11,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:52:11,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:11" (1/1) ... [2023-08-31 21:52:11,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:11" (1/1) ... [2023-08-31 21:52:11,568 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 218 [2023-08-31 21:52:11,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:52:11,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:52:11,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:52:11,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:52:11,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:11" (1/1) ... [2023-08-31 21:52:11,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:11" (1/1) ... [2023-08-31 21:52:11,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:11" (1/1) ... [2023-08-31 21:52:11,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:11" (1/1) ... [2023-08-31 21:52:11,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:11" (1/1) ... [2023-08-31 21:52:11,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:11" (1/1) ... [2023-08-31 21:52:11,595 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:11" (1/1) ... [2023-08-31 21:52:11,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:11" (1/1) ... [2023-08-31 21:52:11,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:52:11,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:52:11,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:52:11,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:52:11,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:11" (1/1) ... [2023-08-31 21:52:11,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:52:11,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:52:11,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 21:52:11,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 21:52:11,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:52:11,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:52:11,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:52:11,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:52:11,714 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:52:11,714 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:52:11,714 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:52:11,714 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:52:11,714 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-31 21:52:11,714 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-31 21:52:11,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:52:11,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 21:52:11,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 21:52:11,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 21:52:11,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:52:11,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:52:11,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:52:11,716 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 21:52:11,801 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:52:11,802 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:52:12,252 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:52:12,353 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:52:12,353 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-31 21:52:12,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:52:12 BoogieIcfgContainer [2023-08-31 21:52:12,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:52:12,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:52:12,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:52:12,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:52:12,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:52:11" (1/3) ... [2023-08-31 21:52:12,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c6f4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:52:12, skipping insertion in model container [2023-08-31 21:52:12,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:52:11" (2/3) ... [2023-08-31 21:52:12,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c6f4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:52:12, skipping insertion in model container [2023-08-31 21:52:12,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:52:12" (3/3) ... [2023-08-31 21:52:12,361 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2023-08-31 21:52:12,367 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:52:12,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:52:12,374 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2023-08-31 21:52:12,374 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:52:12,446 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-31 21:52:12,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 335 places, 345 transitions, 714 flow [2023-08-31 21:52:12,564 INFO L130 PetriNetUnfolder]: 20/342 cut-off events. [2023-08-31 21:52:12,565 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:52:12,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 342 events. 20/342 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 439 event pairs, 0 based on Foata normal form. 0/283 useless extension candidates. Maximal degree in co-relation 270. Up to 3 conditions per place. [2023-08-31 21:52:12,570 INFO L82 GeneralOperation]: Start removeDead. Operand has 335 places, 345 transitions, 714 flow [2023-08-31 21:52:12,575 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 316 places, 325 transitions, 668 flow [2023-08-31 21:52:12,577 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:52:12,583 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 316 places, 325 transitions, 668 flow [2023-08-31 21:52:12,585 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 316 places, 325 transitions, 668 flow [2023-08-31 21:52:12,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 316 places, 325 transitions, 668 flow [2023-08-31 21:52:12,634 INFO L130 PetriNetUnfolder]: 19/325 cut-off events. [2023-08-31 21:52:12,634 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:52:12,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 325 events. 19/325 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 436 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 270. Up to 3 conditions per place. [2023-08-31 21:52:12,642 INFO L119 LiptonReduction]: Number of co-enabled transitions 9382 [2023-08-31 21:52:24,499 INFO L134 LiptonReduction]: Checked pairs total: 55476 [2023-08-31 21:52:24,499 INFO L136 LiptonReduction]: Total number of compositions: 312 [2023-08-31 21:52:24,516 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:52:24,522 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;@642ec467, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:52:24,522 INFO L358 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2023-08-31 21:52:24,523 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:52:24,524 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:52:24,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:24,525 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:52:24,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 21:52:24,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:24,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1323, now seen corresponding path program 1 times [2023-08-31 21:52:24,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:24,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618052449] [2023-08-31 21:52:24,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:24,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:24,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:52:24,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:24,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618052449] [2023-08-31 21:52:24,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618052449] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:24,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:24,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:52:24,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123948469] [2023-08-31 21:52:24,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:24,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:52:24,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:24,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:52:24,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:52:24,628 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 657 [2023-08-31 21:52:24,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 106 transitions, 230 flow. Second operand has 2 states, 2 states have (on average 310.5) internal successors, (621), 2 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:24,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:24,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 657 [2023-08-31 21:52:24,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:24,852 INFO L130 PetriNetUnfolder]: 853/2057 cut-off events. [2023-08-31 21:52:24,852 INFO L131 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2023-08-31 21:52:24,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3286 conditions, 2057 events. 853/2057 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 14780 event pairs, 465 based on Foata normal form. 380/2038 useless extension candidates. Maximal degree in co-relation 2847. Up to 1146 conditions per place. [2023-08-31 21:52:24,863 INFO L137 encePairwiseOnDemand]: 625/657 looper letters, 30 selfloop transitions, 0 changer transitions 1/74 dead transitions. [2023-08-31 21:52:24,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 74 transitions, 228 flow [2023-08-31 21:52:24,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:52:24,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:52:24,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 683 transitions. [2023-08-31 21:52:24,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5197869101978692 [2023-08-31 21:52:24,874 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 683 transitions. [2023-08-31 21:52:24,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 683 transitions. [2023-08-31 21:52:24,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:24,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 683 transitions. [2023-08-31 21:52:24,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 341.5) internal successors, (683), 2 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:24,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 657.0) internal successors, (1971), 3 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:24,900 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 657.0) internal successors, (1971), 3 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:24,902 INFO L175 Difference]: Start difference. First operand has 106 places, 106 transitions, 230 flow. Second operand 2 states and 683 transitions. [2023-08-31 21:52:24,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 74 transitions, 228 flow [2023-08-31 21:52:24,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 74 transitions, 216 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 21:52:24,906 INFO L231 Difference]: Finished difference. Result has 72 places, 73 transitions, 151 flow [2023-08-31 21:52:24,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=151, PETRI_PLACES=72, PETRI_TRANSITIONS=73} [2023-08-31 21:52:24,910 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -34 predicate places. [2023-08-31 21:52:24,910 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 73 transitions, 151 flow [2023-08-31 21:52:24,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 310.5) internal successors, (621), 2 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:24,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:24,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:52:24,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:52:24,911 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 21:52:24,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:24,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1600834020, now seen corresponding path program 1 times [2023-08-31 21:52:24,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:24,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978145271] [2023-08-31 21:52:24,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:24,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:25,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:52:25,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:25,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978145271] [2023-08-31 21:52:25,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978145271] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:25,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:25,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:52:25,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708929891] [2023-08-31 21:52:25,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:25,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:52:25,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:25,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:52:25,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:52:25,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 657 [2023-08-31 21:52:25,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 73 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 293.3333333333333) internal successors, (880), 3 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:25,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:25,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 657 [2023-08-31 21:52:25,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:25,290 INFO L130 PetriNetUnfolder]: 1556/3314 cut-off events. [2023-08-31 21:52:25,290 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2023-08-31 21:52:25,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5559 conditions, 3314 events. 1556/3314 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 23269 event pairs, 1173 based on Foata normal form. 0/2688 useless extension candidates. Maximal degree in co-relation 5556. Up to 2193 conditions per place. [2023-08-31 21:52:25,303 INFO L137 encePairwiseOnDemand]: 653/657 looper letters, 33 selfloop transitions, 1 changer transitions 0/70 dead transitions. [2023-08-31 21:52:25,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 70 transitions, 213 flow [2023-08-31 21:52:25,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:52:25,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:52:25,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 910 transitions. [2023-08-31 21:52:25,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46169457128361235 [2023-08-31 21:52:25,306 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 910 transitions. [2023-08-31 21:52:25,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 910 transitions. [2023-08-31 21:52:25,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:25,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 910 transitions. [2023-08-31 21:52:25,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:25,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 657.0) internal successors, (2628), 4 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:25,312 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 657.0) internal successors, (2628), 4 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:25,312 INFO L175 Difference]: Start difference. First operand has 72 places, 73 transitions, 151 flow. Second operand 3 states and 910 transitions. [2023-08-31 21:52:25,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 70 transitions, 213 flow [2023-08-31 21:52:25,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 70 transitions, 213 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:52:25,314 INFO L231 Difference]: Finished difference. Result has 70 places, 70 transitions, 147 flow [2023-08-31 21:52:25,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=70, PETRI_TRANSITIONS=70} [2023-08-31 21:52:25,314 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -36 predicate places. [2023-08-31 21:52:25,315 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 70 transitions, 147 flow [2023-08-31 21:52:25,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 293.3333333333333) internal successors, (880), 3 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:25,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:25,315 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:52:25,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:52:25,316 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 21:52:25,316 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:25,316 INFO L85 PathProgramCache]: Analyzing trace with hash -802957931, now seen corresponding path program 1 times [2023-08-31 21:52:25,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:25,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566582237] [2023-08-31 21:52:25,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:25,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:25,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:52:25,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:25,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566582237] [2023-08-31 21:52:25,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566582237] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:25,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:25,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:52:25,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699295198] [2023-08-31 21:52:25,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:25,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:52:25,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:25,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:52:25,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:52:25,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 657 [2023-08-31 21:52:25,370 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 70 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:25,370 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:25,370 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 657 [2023-08-31 21:52:25,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:25,603 INFO L130 PetriNetUnfolder]: 1223/2635 cut-off events. [2023-08-31 21:52:25,604 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-08-31 21:52:25,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4339 conditions, 2635 events. 1223/2635 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 18050 event pairs, 204 based on Foata normal form. 0/2188 useless extension candidates. Maximal degree in co-relation 4335. Up to 1374 conditions per place. [2023-08-31 21:52:25,614 INFO L137 encePairwiseOnDemand]: 654/657 looper letters, 48 selfloop transitions, 2 changer transitions 0/88 dead transitions. [2023-08-31 21:52:25,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 88 transitions, 287 flow [2023-08-31 21:52:25,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:52:25,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:52:25,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 969 transitions. [2023-08-31 21:52:25,616 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4916286149162861 [2023-08-31 21:52:25,616 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 969 transitions. [2023-08-31 21:52:25,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 969 transitions. [2023-08-31 21:52:25,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:25,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 969 transitions. [2023-08-31 21:52:25,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 323.0) internal successors, (969), 3 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:25,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 657.0) internal successors, (2628), 4 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:25,622 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 657.0) internal successors, (2628), 4 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:25,622 INFO L175 Difference]: Start difference. First operand has 70 places, 70 transitions, 147 flow. Second operand 3 states and 969 transitions. [2023-08-31 21:52:25,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 88 transitions, 287 flow [2023-08-31 21:52:25,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 88 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:52:25,624 INFO L231 Difference]: Finished difference. Result has 71 places, 71 transitions, 158 flow [2023-08-31 21:52:25,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=71, PETRI_TRANSITIONS=71} [2023-08-31 21:52:25,625 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -35 predicate places. [2023-08-31 21:52:25,625 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 71 transitions, 158 flow [2023-08-31 21:52:25,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:25,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:25,626 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:52:25,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:52:25,626 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 21:52:25,626 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:25,626 INFO L85 PathProgramCache]: Analyzing trace with hash -412166984, now seen corresponding path program 1 times [2023-08-31 21:52:25,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:25,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925575807] [2023-08-31 21:52:25,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:25,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:25,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:52:25,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:25,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925575807] [2023-08-31 21:52:25,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925575807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:25,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:25,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:52:25,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177216950] [2023-08-31 21:52:25,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:25,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:52:25,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:25,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:52:25,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:52:26,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 657 [2023-08-31 21:52:26,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 71 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 291.5) internal successors, (1749), 6 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:26,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:26,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 657 [2023-08-31 21:52:26,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:27,092 INFO L130 PetriNetUnfolder]: 4955/7801 cut-off events. [2023-08-31 21:52:27,092 INFO L131 PetriNetUnfolder]: For 1070/1080 co-relation queries the response was YES. [2023-08-31 21:52:27,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15554 conditions, 7801 events. 4955/7801 cut-off events. For 1070/1080 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 50155 event pairs, 1201 based on Foata normal form. 0/6192 useless extension candidates. Maximal degree in co-relation 15550. Up to 3515 conditions per place. [2023-08-31 21:52:27,130 INFO L137 encePairwiseOnDemand]: 650/657 looper letters, 93 selfloop transitions, 13 changer transitions 0/139 dead transitions. [2023-08-31 21:52:27,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 139 transitions, 548 flow [2023-08-31 21:52:27,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:52:27,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:52:27,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1831 transitions. [2023-08-31 21:52:27,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46448503297818367 [2023-08-31 21:52:27,137 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1831 transitions. [2023-08-31 21:52:27,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1831 transitions. [2023-08-31 21:52:27,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:27,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1831 transitions. [2023-08-31 21:52:27,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 305.1666666666667) internal successors, (1831), 6 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:27,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 657.0) internal successors, (4599), 7 states have internal predecessors, (4599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:27,146 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 657.0) internal successors, (4599), 7 states have internal predecessors, (4599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:27,146 INFO L175 Difference]: Start difference. First operand has 71 places, 71 transitions, 158 flow. Second operand 6 states and 1831 transitions. [2023-08-31 21:52:27,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 139 transitions, 548 flow [2023-08-31 21:52:27,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 139 transitions, 548 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:52:27,151 INFO L231 Difference]: Finished difference. Result has 81 places, 83 transitions, 268 flow [2023-08-31 21:52:27,151 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=268, PETRI_PLACES=81, PETRI_TRANSITIONS=83} [2023-08-31 21:52:27,153 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -25 predicate places. [2023-08-31 21:52:27,153 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 83 transitions, 268 flow [2023-08-31 21:52:27,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 291.5) internal successors, (1749), 6 states have internal predecessors, (1749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:27,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:27,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:52:27,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:52:27,155 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 21:52:27,155 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:27,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1335163975, now seen corresponding path program 1 times [2023-08-31 21:52:27,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:27,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924077307] [2023-08-31 21:52:27,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:27,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:27,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:27,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:52:27,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:27,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924077307] [2023-08-31 21:52:27,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924077307] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:27,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:27,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 21:52:27,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271369387] [2023-08-31 21:52:27,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:27,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 21:52:27,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:27,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 21:52:27,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-31 21:52:27,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 657 [2023-08-31 21:52:27,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 83 transitions, 268 flow. Second operand has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:27,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:27,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 657 [2023-08-31 21:52:27,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:28,211 INFO L130 PetriNetUnfolder]: 3489/6895 cut-off events. [2023-08-31 21:52:28,212 INFO L131 PetriNetUnfolder]: For 5499/5666 co-relation queries the response was YES. [2023-08-31 21:52:28,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15741 conditions, 6895 events. 3489/6895 cut-off events. For 5499/5666 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 53864 event pairs, 1275 based on Foata normal form. 12/5566 useless extension candidates. Maximal degree in co-relation 15732. Up to 3210 conditions per place. [2023-08-31 21:52:28,249 INFO L137 encePairwiseOnDemand]: 648/657 looper letters, 88 selfloop transitions, 10 changer transitions 0/140 dead transitions. [2023-08-31 21:52:28,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 140 transitions, 707 flow [2023-08-31 21:52:28,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 21:52:28,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 21:52:28,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1538 transitions. [2023-08-31 21:52:28,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4681887366818874 [2023-08-31 21:52:28,252 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1538 transitions. [2023-08-31 21:52:28,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1538 transitions. [2023-08-31 21:52:28,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:28,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1538 transitions. [2023-08-31 21:52:28,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 307.6) internal successors, (1538), 5 states have internal predecessors, (1538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:28,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 657.0) internal successors, (3942), 6 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:28,261 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 657.0) internal successors, (3942), 6 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:28,261 INFO L175 Difference]: Start difference. First operand has 81 places, 83 transitions, 268 flow. Second operand 5 states and 1538 transitions. [2023-08-31 21:52:28,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 140 transitions, 707 flow [2023-08-31 21:52:28,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 140 transitions, 707 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:52:28,274 INFO L231 Difference]: Finished difference. Result has 88 places, 91 transitions, 336 flow [2023-08-31 21:52:28,275 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=336, PETRI_PLACES=88, PETRI_TRANSITIONS=91} [2023-08-31 21:52:28,275 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -18 predicate places. [2023-08-31 21:52:28,275 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 91 transitions, 336 flow [2023-08-31 21:52:28,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 294.6) internal successors, (1473), 5 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:28,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:28,276 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:52:28,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:52:28,277 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 21:52:28,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:28,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1264128058, now seen corresponding path program 1 times [2023-08-31 21:52:28,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:28,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775382565] [2023-08-31 21:52:28,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:28,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:28,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:52:28,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:28,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775382565] [2023-08-31 21:52:28,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775382565] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:28,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:28,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 21:52:28,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862204861] [2023-08-31 21:52:28,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:28,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 21:52:28,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:28,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 21:52:28,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-31 21:52:28,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 657 [2023-08-31 21:52:28,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 91 transitions, 336 flow. Second operand has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:28,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:28,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 657 [2023-08-31 21:52:28,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:29,109 INFO L130 PetriNetUnfolder]: 2565/5412 cut-off events. [2023-08-31 21:52:29,109 INFO L131 PetriNetUnfolder]: For 3410/3604 co-relation queries the response was YES. [2023-08-31 21:52:29,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11518 conditions, 5412 events. 2565/5412 cut-off events. For 3410/3604 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 42191 event pairs, 1272 based on Foata normal form. 131/4663 useless extension candidates. Maximal degree in co-relation 11505. Up to 3103 conditions per place. [2023-08-31 21:52:29,134 INFO L137 encePairwiseOnDemand]: 648/657 looper letters, 68 selfloop transitions, 10 changer transitions 0/121 dead transitions. [2023-08-31 21:52:29,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 121 transitions, 561 flow [2023-08-31 21:52:29,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 21:52:29,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 21:52:29,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1534 transitions. [2023-08-31 21:52:29,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4669710806697108 [2023-08-31 21:52:29,137 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1534 transitions. [2023-08-31 21:52:29,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1534 transitions. [2023-08-31 21:52:29,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:29,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1534 transitions. [2023-08-31 21:52:29,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 306.8) internal successors, (1534), 5 states have internal predecessors, (1534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:29,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 657.0) internal successors, (3942), 6 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:29,144 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 657.0) internal successors, (3942), 6 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:29,144 INFO L175 Difference]: Start difference. First operand has 88 places, 91 transitions, 336 flow. Second operand 5 states and 1534 transitions. [2023-08-31 21:52:29,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 121 transitions, 561 flow [2023-08-31 21:52:29,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 121 transitions, 561 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:52:29,154 INFO L231 Difference]: Finished difference. Result has 94 places, 92 transitions, 375 flow [2023-08-31 21:52:29,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=375, PETRI_PLACES=94, PETRI_TRANSITIONS=92} [2023-08-31 21:52:29,156 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -12 predicate places. [2023-08-31 21:52:29,156 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 92 transitions, 375 flow [2023-08-31 21:52:29,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 295.4) internal successors, (1477), 5 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:29,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:29,157 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:52:29,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 21:52:29,158 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 21:52:29,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:29,159 INFO L85 PathProgramCache]: Analyzing trace with hash -392262212, now seen corresponding path program 1 times [2023-08-31 21:52:29,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:29,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144012048] [2023-08-31 21:52:29,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:29,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:29,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-31 21:52:29,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:29,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144012048] [2023-08-31 21:52:29,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144012048] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:29,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:29,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:52:29,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950803306] [2023-08-31 21:52:29,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:29,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:52:29,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:29,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:52:29,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:52:29,618 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 657 [2023-08-31 21:52:29,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 92 transitions, 375 flow. Second operand has 6 states, 6 states have (on average 290.6666666666667) internal successors, (1744), 6 states have internal predecessors, (1744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:29,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:29,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 657 [2023-08-31 21:52:29,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:30,991 INFO L130 PetriNetUnfolder]: 5362/9426 cut-off events. [2023-08-31 21:52:30,991 INFO L131 PetriNetUnfolder]: For 9564/10021 co-relation queries the response was YES. [2023-08-31 21:52:31,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22420 conditions, 9426 events. 5362/9426 cut-off events. For 9564/10021 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 69248 event pairs, 1536 based on Foata normal form. 88/7874 useless extension candidates. Maximal degree in co-relation 22404. Up to 5295 conditions per place. [2023-08-31 21:52:31,062 INFO L137 encePairwiseOnDemand]: 649/657 looper letters, 98 selfloop transitions, 26 changer transitions 0/162 dead transitions. [2023-08-31 21:52:31,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 162 transitions, 883 flow [2023-08-31 21:52:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:52:31,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:52:31,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1819 transitions. [2023-08-31 21:52:31,066 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46144089294774226 [2023-08-31 21:52:31,066 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1819 transitions. [2023-08-31 21:52:31,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1819 transitions. [2023-08-31 21:52:31,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:31,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1819 transitions. [2023-08-31 21:52:31,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 303.1666666666667) internal successors, (1819), 6 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:31,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 657.0) internal successors, (4599), 7 states have internal predecessors, (4599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:31,074 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 657.0) internal successors, (4599), 7 states have internal predecessors, (4599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:31,075 INFO L175 Difference]: Start difference. First operand has 94 places, 92 transitions, 375 flow. Second operand 6 states and 1819 transitions. [2023-08-31 21:52:31,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 162 transitions, 883 flow [2023-08-31 21:52:31,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 162 transitions, 868 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:52:31,086 INFO L231 Difference]: Finished difference. Result has 102 places, 117 transitions, 648 flow [2023-08-31 21:52:31,086 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=648, PETRI_PLACES=102, PETRI_TRANSITIONS=117} [2023-08-31 21:52:31,086 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -4 predicate places. [2023-08-31 21:52:31,087 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 117 transitions, 648 flow [2023-08-31 21:52:31,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 290.6666666666667) internal successors, (1744), 6 states have internal predecessors, (1744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:31,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:31,088 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:52:31,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 21:52:31,088 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 21:52:31,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:31,088 INFO L85 PathProgramCache]: Analyzing trace with hash 993491815, now seen corresponding path program 1 times [2023-08-31 21:52:31,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:31,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029161828] [2023-08-31 21:52:31,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:31,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:31,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-31 21:52:31,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:31,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029161828] [2023-08-31 21:52:31,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029161828] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:31,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:31,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:52:31,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032401407] [2023-08-31 21:52:31,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:31,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:52:31,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:31,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:52:31,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:52:31,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 657 [2023-08-31 21:52:31,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 117 transitions, 648 flow. Second operand has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:31,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:31,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 657 [2023-08-31 21:52:31,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:32,037 INFO L130 PetriNetUnfolder]: 5200/9408 cut-off events. [2023-08-31 21:52:32,038 INFO L131 PetriNetUnfolder]: For 21760/22775 co-relation queries the response was YES. [2023-08-31 21:52:32,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26451 conditions, 9408 events. 5200/9408 cut-off events. For 21760/22775 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 70228 event pairs, 487 based on Foata normal form. 81/8320 useless extension candidates. Maximal degree in co-relation 26431. Up to 5724 conditions per place. [2023-08-31 21:52:32,083 INFO L137 encePairwiseOnDemand]: 654/657 looper letters, 83 selfloop transitions, 31 changer transitions 0/160 dead transitions. [2023-08-31 21:52:32,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 160 transitions, 1200 flow [2023-08-31 21:52:32,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:52:32,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:52:32,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 971 transitions. [2023-08-31 21:52:32,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4926433282597666 [2023-08-31 21:52:32,085 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 971 transitions. [2023-08-31 21:52:32,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 971 transitions. [2023-08-31 21:52:32,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:32,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 971 transitions. [2023-08-31 21:52:32,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 323.6666666666667) internal successors, (971), 3 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:32,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 657.0) internal successors, (2628), 4 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:32,090 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 657.0) internal successors, (2628), 4 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:32,090 INFO L175 Difference]: Start difference. First operand has 102 places, 117 transitions, 648 flow. Second operand 3 states and 971 transitions. [2023-08-31 21:52:32,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 160 transitions, 1200 flow [2023-08-31 21:52:32,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 160 transitions, 1120 flow, removed 40 selfloop flow, removed 0 redundant places. [2023-08-31 21:52:32,104 INFO L231 Difference]: Finished difference. Result has 104 places, 142 transitions, 993 flow [2023-08-31 21:52:32,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=993, PETRI_PLACES=104, PETRI_TRANSITIONS=142} [2023-08-31 21:52:32,105 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -2 predicate places. [2023-08-31 21:52:32,105 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 142 transitions, 993 flow [2023-08-31 21:52:32,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:32,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:32,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:52:32,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 21:52:32,106 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 21:52:32,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:32,106 INFO L85 PathProgramCache]: Analyzing trace with hash -2130533545, now seen corresponding path program 1 times [2023-08-31 21:52:32,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:32,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147179457] [2023-08-31 21:52:32,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:32,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-31 21:52:32,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:32,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147179457] [2023-08-31 21:52:32,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147179457] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:32,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:32,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 21:52:32,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597051290] [2023-08-31 21:52:32,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:32,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 21:52:32,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:32,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 21:52:32,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-31 21:52:33,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 657 [2023-08-31 21:52:33,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 142 transitions, 993 flow. Second operand has 11 states, 11 states have (on average 278.72727272727275) internal successors, (3066), 11 states have internal predecessors, (3066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:33,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:33,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 657 [2023-08-31 21:52:33,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:35,108 INFO L130 PetriNetUnfolder]: 8220/12902 cut-off events. [2023-08-31 21:52:35,109 INFO L131 PetriNetUnfolder]: For 26062/29705 co-relation queries the response was YES. [2023-08-31 21:52:35,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37644 conditions, 12902 events. 8220/12902 cut-off events. For 26062/29705 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 87492 event pairs, 870 based on Foata normal form. 1282/12418 useless extension candidates. Maximal degree in co-relation 37623. Up to 3670 conditions per place. [2023-08-31 21:52:35,228 INFO L137 encePairwiseOnDemand]: 651/657 looper letters, 180 selfloop transitions, 8 changer transitions 0/225 dead transitions. [2023-08-31 21:52:35,228 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 225 transitions, 1789 flow [2023-08-31 21:52:35,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:52:35,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:52:35,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2027 transitions. [2023-08-31 21:52:35,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44074798869319415 [2023-08-31 21:52:35,232 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2027 transitions. [2023-08-31 21:52:35,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2027 transitions. [2023-08-31 21:52:35,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:35,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2027 transitions. [2023-08-31 21:52:35,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 289.57142857142856) internal successors, (2027), 7 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:35,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 657.0) internal successors, (5256), 8 states have internal predecessors, (5256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:35,241 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 657.0) internal successors, (5256), 8 states have internal predecessors, (5256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:35,241 INFO L175 Difference]: Start difference. First operand has 104 places, 142 transitions, 993 flow. Second operand 7 states and 2027 transitions. [2023-08-31 21:52:35,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 225 transitions, 1789 flow [2023-08-31 21:52:35,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 225 transitions, 1776 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:52:35,293 INFO L231 Difference]: Finished difference. Result has 108 places, 141 transitions, 992 flow [2023-08-31 21:52:35,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=992, PETRI_PLACES=108, PETRI_TRANSITIONS=141} [2023-08-31 21:52:35,294 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 2 predicate places. [2023-08-31 21:52:35,294 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 141 transitions, 992 flow [2023-08-31 21:52:35,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 278.72727272727275) internal successors, (3066), 11 states have internal predecessors, (3066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:35,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:35,295 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:52:35,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 21:52:35,295 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 21:52:35,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:35,295 INFO L85 PathProgramCache]: Analyzing trace with hash -298971930, now seen corresponding path program 1 times [2023-08-31 21:52:35,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:35,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897041898] [2023-08-31 21:52:35,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:35,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:35,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:52:35,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:35,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897041898] [2023-08-31 21:52:35,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897041898] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:35,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:35,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:52:35,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51100480] [2023-08-31 21:52:35,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:35,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:52:35,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:35,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:52:35,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:52:35,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 657 [2023-08-31 21:52:35,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 141 transitions, 992 flow. Second operand has 6 states, 6 states have (on average 292.0) internal successors, (1752), 6 states have internal predecessors, (1752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:35,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:35,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 657 [2023-08-31 21:52:35,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:36,843 INFO L130 PetriNetUnfolder]: 5241/9147 cut-off events. [2023-08-31 21:52:36,843 INFO L131 PetriNetUnfolder]: For 25928/26902 co-relation queries the response was YES. [2023-08-31 21:52:36,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27585 conditions, 9147 events. 5241/9147 cut-off events. For 25928/26902 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 66677 event pairs, 1663 based on Foata normal form. 106/7799 useless extension candidates. Maximal degree in co-relation 27564. Up to 5911 conditions per place. [2023-08-31 21:52:36,900 INFO L137 encePairwiseOnDemand]: 650/657 looper letters, 126 selfloop transitions, 17 changer transitions 0/183 dead transitions. [2023-08-31 21:52:36,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 183 transitions, 1475 flow [2023-08-31 21:52:36,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:52:36,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:52:36,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1805 transitions. [2023-08-31 21:52:36,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45788939624556063 [2023-08-31 21:52:36,923 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1805 transitions. [2023-08-31 21:52:36,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1805 transitions. [2023-08-31 21:52:36,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:36,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1805 transitions. [2023-08-31 21:52:36,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 300.8333333333333) internal successors, (1805), 6 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:36,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 657.0) internal successors, (4599), 7 states have internal predecessors, (4599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:36,944 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 657.0) internal successors, (4599), 7 states have internal predecessors, (4599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:36,945 INFO L175 Difference]: Start difference. First operand has 108 places, 141 transitions, 992 flow. Second operand 6 states and 1805 transitions. [2023-08-31 21:52:36,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 183 transitions, 1475 flow [2023-08-31 21:52:36,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 183 transitions, 1461 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:52:36,974 INFO L231 Difference]: Finished difference. Result has 113 places, 157 transitions, 1206 flow [2023-08-31 21:52:36,975 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=978, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1206, PETRI_PLACES=113, PETRI_TRANSITIONS=157} [2023-08-31 21:52:36,975 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 7 predicate places. [2023-08-31 21:52:36,976 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 157 transitions, 1206 flow [2023-08-31 21:52:36,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 292.0) internal successors, (1752), 6 states have internal predecessors, (1752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:36,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:36,976 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:52:36,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 21:52:36,977 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 21:52:36,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:36,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1677421761, now seen corresponding path program 1 times [2023-08-31 21:52:36,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:36,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047596920] [2023-08-31 21:52:36,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:36,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:37,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-31 21:52:37,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:37,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047596920] [2023-08-31 21:52:37,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047596920] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:37,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:37,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 21:52:37,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236400058] [2023-08-31 21:52:37,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:37,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 21:52:37,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:37,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 21:52:37,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-08-31 21:52:38,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 657 [2023-08-31 21:52:38,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 157 transitions, 1206 flow. Second operand has 9 states, 9 states have (on average 278.77777777777777) internal successors, (2509), 9 states have internal predecessors, (2509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:38,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:38,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 657 [2023-08-31 21:52:38,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:40,651 INFO L130 PetriNetUnfolder]: 11560/21746 cut-off events. [2023-08-31 21:52:40,651 INFO L131 PetriNetUnfolder]: For 66065/69685 co-relation queries the response was YES. [2023-08-31 21:52:40,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64849 conditions, 21746 events. 11560/21746 cut-off events. For 66065/69685 co-relation queries the response was YES. Maximal size of possible extension queue 757. Compared 183506 event pairs, 1317 based on Foata normal form. 252/19267 useless extension candidates. Maximal degree in co-relation 64824. Up to 4442 conditions per place. [2023-08-31 21:52:40,787 INFO L137 encePairwiseOnDemand]: 647/657 looper letters, 262 selfloop transitions, 67 changer transitions 0/374 dead transitions. [2023-08-31 21:52:40,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 374 transitions, 3731 flow [2023-08-31 21:52:40,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 21:52:40,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 21:52:40,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3169 transitions. [2023-08-31 21:52:40,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43849453438494534 [2023-08-31 21:52:40,793 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3169 transitions. [2023-08-31 21:52:40,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3169 transitions. [2023-08-31 21:52:40,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:40,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3169 transitions. [2023-08-31 21:52:40,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 288.09090909090907) internal successors, (3169), 11 states have internal predecessors, (3169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:40,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 657.0) internal successors, (7884), 12 states have internal predecessors, (7884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:40,803 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 657.0) internal successors, (7884), 12 states have internal predecessors, (7884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:40,804 INFO L175 Difference]: Start difference. First operand has 113 places, 157 transitions, 1206 flow. Second operand 11 states and 3169 transitions. [2023-08-31 21:52:40,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 374 transitions, 3731 flow [2023-08-31 21:52:40,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 374 transitions, 3683 flow, removed 24 selfloop flow, removed 0 redundant places. [2023-08-31 21:52:40,966 INFO L231 Difference]: Finished difference. Result has 127 places, 212 transitions, 2149 flow [2023-08-31 21:52:40,966 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=1190, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2149, PETRI_PLACES=127, PETRI_TRANSITIONS=212} [2023-08-31 21:52:40,967 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 21 predicate places. [2023-08-31 21:52:40,967 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 212 transitions, 2149 flow [2023-08-31 21:52:40,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 278.77777777777777) internal successors, (2509), 9 states have internal predecessors, (2509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:40,967 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:40,968 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:52:40,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 21:52:40,968 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 21:52:40,968 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:40,968 INFO L85 PathProgramCache]: Analyzing trace with hash 2495781, now seen corresponding path program 2 times [2023-08-31 21:52:40,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:40,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721371523] [2023-08-31 21:52:40,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:40,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:41,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-31 21:52:41,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:41,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721371523] [2023-08-31 21:52:41,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721371523] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:41,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:41,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 21:52:41,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784333672] [2023-08-31 21:52:41,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:41,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 21:52:41,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:41,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 21:52:41,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-31 21:52:42,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 657 [2023-08-31 21:52:42,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 212 transitions, 2149 flow. Second operand has 9 states, 9 states have (on average 278.77777777777777) internal successors, (2509), 9 states have internal predecessors, (2509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:42,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:42,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 657 [2023-08-31 21:52:42,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:45,478 INFO L130 PetriNetUnfolder]: 15509/29556 cut-off events. [2023-08-31 21:52:45,479 INFO L131 PetriNetUnfolder]: For 113703/120362 co-relation queries the response was YES. [2023-08-31 21:52:45,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91386 conditions, 29556 events. 15509/29556 cut-off events. For 113703/120362 co-relation queries the response was YES. Maximal size of possible extension queue 1055. Compared 264637 event pairs, 4226 based on Foata normal form. 857/26342 useless extension candidates. Maximal degree in co-relation 91356. Up to 12827 conditions per place. [2023-08-31 21:52:45,826 INFO L137 encePairwiseOnDemand]: 647/657 looper letters, 175 selfloop transitions, 141 changer transitions 0/361 dead transitions. [2023-08-31 21:52:45,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 361 transitions, 4000 flow [2023-08-31 21:52:45,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 21:52:45,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 21:52:45,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2875 transitions. [2023-08-31 21:52:45,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4375951293759513 [2023-08-31 21:52:45,831 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2875 transitions. [2023-08-31 21:52:45,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2875 transitions. [2023-08-31 21:52:45,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:45,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2875 transitions. [2023-08-31 21:52:45,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 287.5) internal successors, (2875), 10 states have internal predecessors, (2875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:45,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 657.0) internal successors, (7227), 11 states have internal predecessors, (7227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:45,842 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 657.0) internal successors, (7227), 11 states have internal predecessors, (7227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:45,842 INFO L175 Difference]: Start difference. First operand has 127 places, 212 transitions, 2149 flow. Second operand 10 states and 2875 transitions. [2023-08-31 21:52:45,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 361 transitions, 4000 flow [2023-08-31 21:52:46,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 361 transitions, 3984 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-31 21:52:46,009 INFO L231 Difference]: Finished difference. Result has 136 places, 262 transitions, 3304 flow [2023-08-31 21:52:46,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=2133, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3304, PETRI_PLACES=136, PETRI_TRANSITIONS=262} [2023-08-31 21:52:46,010 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 30 predicate places. [2023-08-31 21:52:46,010 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 262 transitions, 3304 flow [2023-08-31 21:52:46,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 278.77777777777777) internal successors, (2509), 9 states have internal predecessors, (2509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:46,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:46,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:52:46,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 21:52:46,011 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 21:52:46,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:46,011 INFO L85 PathProgramCache]: Analyzing trace with hash 764390283, now seen corresponding path program 1 times [2023-08-31 21:52:46,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:46,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841174914] [2023-08-31 21:52:46,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:46,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:46,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-31 21:52:46,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:46,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841174914] [2023-08-31 21:52:46,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841174914] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:52:46,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:52:46,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:52:46,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311244175] [2023-08-31 21:52:46,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:52:46,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:52:46,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:46,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:52:46,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:52:46,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 657 [2023-08-31 21:52:46,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 262 transitions, 3304 flow. Second operand has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:46,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:46,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 657 [2023-08-31 21:52:46,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:52:52,261 INFO L130 PetriNetUnfolder]: 23987/39918 cut-off events. [2023-08-31 21:52:52,261 INFO L131 PetriNetUnfolder]: For 232630/236405 co-relation queries the response was YES. [2023-08-31 21:52:52,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140723 conditions, 39918 events. 23987/39918 cut-off events. For 232630/236405 co-relation queries the response was YES. Maximal size of possible extension queue 1201. Compared 324352 event pairs, 6827 based on Foata normal form. 1137/34957 useless extension candidates. Maximal degree in co-relation 140689. Up to 24152 conditions per place. [2023-08-31 21:52:52,743 INFO L137 encePairwiseOnDemand]: 650/657 looper letters, 254 selfloop transitions, 112 changer transitions 0/412 dead transitions. [2023-08-31 21:52:52,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 412 transitions, 5839 flow [2023-08-31 21:52:52,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:52:52,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:52:52,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1817 transitions. [2023-08-31 21:52:52,747 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46093353627600203 [2023-08-31 21:52:52,747 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1817 transitions. [2023-08-31 21:52:52,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1817 transitions. [2023-08-31 21:52:52,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:52:52,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1817 transitions. [2023-08-31 21:52:52,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 302.8333333333333) internal successors, (1817), 6 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:52,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 657.0) internal successors, (4599), 7 states have internal predecessors, (4599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:52,753 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 657.0) internal successors, (4599), 7 states have internal predecessors, (4599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:52,753 INFO L175 Difference]: Start difference. First operand has 136 places, 262 transitions, 3304 flow. Second operand 6 states and 1817 transitions. [2023-08-31 21:52:52,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 412 transitions, 5839 flow [2023-08-31 21:52:53,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 412 transitions, 5677 flow, removed 74 selfloop flow, removed 4 redundant places. [2023-08-31 21:52:53,199 INFO L231 Difference]: Finished difference. Result has 141 places, 368 transitions, 5252 flow [2023-08-31 21:52:53,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=3182, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5252, PETRI_PLACES=141, PETRI_TRANSITIONS=368} [2023-08-31 21:52:53,200 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 35 predicate places. [2023-08-31 21:52:53,200 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 368 transitions, 5252 flow [2023-08-31 21:52:53,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:53,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:52:53,201 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:52:53,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 21:52:53,201 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 21:52:53,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:52:53,201 INFO L85 PathProgramCache]: Analyzing trace with hash 789304179, now seen corresponding path program 3 times [2023-08-31 21:52:53,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:52:53,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995216090] [2023-08-31 21:52:53,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:52:53,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:52:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:52:53,311 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:52:53,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:52:53,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995216090] [2023-08-31 21:52:53,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995216090] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:52:53,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345446643] [2023-08-31 21:52:53,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-31 21:52:53,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:52:53,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:52:53,314 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:52:53,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-31 21:52:53,553 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-31 21:52:53,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 21:52:53,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-31 21:52:53,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:52:53,697 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:52:53,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 21:52:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:52:53,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345446643] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 21:52:53,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 21:52:53,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-08-31 21:52:53,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012203103] [2023-08-31 21:52:53,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 21:52:53,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-31 21:52:53,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:52:53,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-31 21:52:53,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-08-31 21:52:54,245 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 657 [2023-08-31 21:52:54,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 368 transitions, 5252 flow. Second operand has 14 states, 14 states have (on average 288.0) internal successors, (4032), 14 states have internal predecessors, (4032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:52:54,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:52:54,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 657 [2023-08-31 21:52:54,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:53:02,694 INFO L130 PetriNetUnfolder]: 30804/59030 cut-off events. [2023-08-31 21:53:02,694 INFO L131 PetriNetUnfolder]: For 572369/588915 co-relation queries the response was YES. [2023-08-31 21:53:03,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210545 conditions, 59030 events. 30804/59030 cut-off events. For 572369/588915 co-relation queries the response was YES. Maximal size of possible extension queue 1912. Compared 593552 event pairs, 3544 based on Foata normal form. 11457/62720 useless extension candidates. Maximal degree in co-relation 210507. Up to 14159 conditions per place. [2023-08-31 21:53:03,428 INFO L137 encePairwiseOnDemand]: 647/657 looper letters, 483 selfloop transitions, 208 changer transitions 0/744 dead transitions. [2023-08-31 21:53:03,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 744 transitions, 10970 flow [2023-08-31 21:53:03,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 21:53:03,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 21:53:03,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3615 transitions. [2023-08-31 21:53:03,434 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4585235920852359 [2023-08-31 21:53:03,434 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3615 transitions. [2023-08-31 21:53:03,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3615 transitions. [2023-08-31 21:53:03,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:53:03,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3615 transitions. [2023-08-31 21:53:03,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 301.25) internal successors, (3615), 12 states have internal predecessors, (3615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:53:03,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 657.0) internal successors, (8541), 13 states have internal predecessors, (8541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:53:03,475 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 657.0) internal successors, (8541), 13 states have internal predecessors, (8541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:53:03,475 INFO L175 Difference]: Start difference. First operand has 141 places, 368 transitions, 5252 flow. Second operand 12 states and 3615 transitions. [2023-08-31 21:53:03,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 744 transitions, 10970 flow [2023-08-31 21:53:06,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 744 transitions, 10544 flow, removed 213 selfloop flow, removed 0 redundant places. [2023-08-31 21:53:06,019 INFO L231 Difference]: Finished difference. Result has 157 places, 567 transitions, 9629 flow [2023-08-31 21:53:06,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=4946, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9629, PETRI_PLACES=157, PETRI_TRANSITIONS=567} [2023-08-31 21:53:06,020 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 51 predicate places. [2023-08-31 21:53:06,020 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 567 transitions, 9629 flow [2023-08-31 21:53:06,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 288.0) internal successors, (4032), 14 states have internal predecessors, (4032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:53:06,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:53:06,021 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:53:06,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-31 21:53:06,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-08-31 21:53:06,226 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 21:53:06,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:53:06,226 INFO L85 PathProgramCache]: Analyzing trace with hash 131908470, now seen corresponding path program 4 times [2023-08-31 21:53:06,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:53:06,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184285227] [2023-08-31 21:53:06,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:53:06,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:53:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:53:07,127 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-31 21:53:07,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:53:07,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184285227] [2023-08-31 21:53:07,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184285227] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:53:07,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75248784] [2023-08-31 21:53:07,129 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-31 21:53:07,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:53:07,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:53:07,133 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:53:07,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-31 21:54:06,025 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-31 21:54:06,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 21:54:06,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 103 conjunts are in the unsatisfiable core [2023-08-31 21:54:06,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:54:06,123 INFO L321 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2023-08-31 21:54:06,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 15 treesize of output 42 [2023-08-31 21:54:06,158 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-31 21:54:06,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-08-31 21:54:06,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2023-08-31 21:54:06,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 [2023-08-31 21:54:06,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-31 21:54:06,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-31 21:54:06,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 21:54:06,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 21:54:06,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 21:54:06,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 21:54:06,825 INFO L321 Elim1Store]: treesize reduction 582, result has 28.7 percent of original size [2023-08-31 21:54:06,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 29 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 259 treesize of output 316 [2023-08-31 21:54:41,488 WARN L222 SmtUtils]: Spent 32.19s on a formula simplification. DAG size of input: 65 DAG size of output: 61 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-31 21:54:41,490 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-31 21:54:41,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 21:55:00,281 WARN L222 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 68 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-31 21:55:59,277 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-31 21:55:59,277 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-31 21:55:59,309 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-31 21:55:59,310 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-31 21:55:59,313 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-31 21:56:18,873 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-08-31 21:56:18,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75248784] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 21:56:18,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 21:56:18,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 35 [2023-08-31 21:56:18,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314011313] [2023-08-31 21:56:18,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 21:56:18,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-08-31 21:56:18,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:56:18,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-08-31 21:56:18,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1150, Unknown=15, NotChecked=0, Total=1332 [2023-08-31 21:56:22,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:56:26,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:56:28,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:56:31,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:56:33,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:56:36,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:56:38,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:56:40,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:56:44,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:56:49,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:56:51,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:56:54,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:56:59,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:03,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:05,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:07,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:09,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:13,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:17,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:19,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:21,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:23,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:25,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:27,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:30,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:34,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:38,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:42,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:46,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:51,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:53,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:54,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:56,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:57:58,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:03,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:05,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:07,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:11,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:15,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:17,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:20,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:22,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:24,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:28,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:32,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:34,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:38,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:42,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:46,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:48,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:51,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:53,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:58:57,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:01,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:03,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:06,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:08,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:11,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:13,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:17,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:21,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:24,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:29,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:33,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:38,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:42,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:47,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:51,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:55,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 21:59:59,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:00:03,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:00:05,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:00:09,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:00:13,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:00:15,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:00:19,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:00:25,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:00:28,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:00:32,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:00:32,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 657 [2023-08-31 22:00:32,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 567 transitions, 9629 flow. Second operand has 37 states, 37 states have (on average 221.75675675675674) internal successors, (8205), 37 states have internal predecessors, (8205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:00:32,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 22:00:32,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 657 [2023-08-31 22:00:32,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 22:00:44,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:00:50,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:01:12,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:01:14,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:01:57,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:01:58,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:02:00,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:02:02,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:02:04,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:02:40,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:03:08,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:03:10,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:03:12,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:03:13,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:03:18,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:03:26,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:03:31,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:03:34,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:03:36,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:03:50,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:03:52,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:03:54,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:03:58,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:04:17,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:04:35,682 WARN L222 SmtUtils]: Spent 16.09s on a formula simplification. DAG size of input: 93 DAG size of output: 78 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-31 22:04:53,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:04:55,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:05:02,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:05:03,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 22:05:10,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:05:19,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:05:29,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:05:34,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:05:36,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:05:41,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:05:43,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:05:48,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:05:50,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:05:52,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:05:58,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:06:03,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-31 22:06:21,592 INFO L130 PetriNetUnfolder]: 131180/188717 cut-off events. [2023-08-31 22:06:21,593 INFO L131 PetriNetUnfolder]: For 625135/628372 co-relation queries the response was YES. [2023-08-31 22:06:23,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 639771 conditions, 188717 events. 131180/188717 cut-off events. For 625135/628372 co-relation queries the response was YES. Maximal size of possible extension queue 4224. Compared 1468706 event pairs, 17155 based on Foata normal form. 790/163126 useless extension candidates. Maximal degree in co-relation 639727. Up to 56556 conditions per place. [2023-08-31 22:06:23,991 INFO L137 encePairwiseOnDemand]: 634/657 looper letters, 479 selfloop transitions, 494 changer transitions 3/983 dead transitions. [2023-08-31 22:06:23,991 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 983 transitions, 14873 flow [2023-08-31 22:06:23,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-31 22:06:23,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-31 22:06:23,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4062 transitions. [2023-08-31 22:06:23,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3636852001074402 [2023-08-31 22:06:23,999 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4062 transitions. [2023-08-31 22:06:23,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4062 transitions. [2023-08-31 22:06:24,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 22:06:24,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4062 transitions. [2023-08-31 22:06:24,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 238.94117647058823) internal successors, (4062), 17 states have internal predecessors, (4062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:06:24,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 657.0) internal successors, (11826), 18 states have internal predecessors, (11826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:06:24,017 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 657.0) internal successors, (11826), 18 states have internal predecessors, (11826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:06:24,017 INFO L175 Difference]: Start difference. First operand has 157 places, 567 transitions, 9629 flow. Second operand 17 states and 4062 transitions. [2023-08-31 22:06:24,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 983 transitions, 14873 flow [2023-08-31 22:06:30,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 983 transitions, 14798 flow, removed 32 selfloop flow, removed 1 redundant places. [2023-08-31 22:06:30,923 INFO L231 Difference]: Finished difference. Result has 179 places, 657 transitions, 12338 flow [2023-08-31 22:06:30,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=657, PETRI_DIFFERENCE_MINUEND_FLOW=9556, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=404, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=12338, PETRI_PLACES=179, PETRI_TRANSITIONS=657} [2023-08-31 22:06:30,934 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 73 predicate places. [2023-08-31 22:06:30,934 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 657 transitions, 12338 flow [2023-08-31 22:06:30,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 221.75675675675674) internal successors, (8205), 37 states have internal predecessors, (8205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:06:30,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 22:06:30,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 22:06:30,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-31 22:06:31,141 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,SelfDestructingSolverStorable14 [2023-08-31 22:06:31,141 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-08-31 22:06:31,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 22:06:31,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1202326027, now seen corresponding path program 1 times [2023-08-31 22:06:31,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 22:06:31,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616707682] [2023-08-31 22:06:31,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 22:06:31,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 22:06:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 22:06:31,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 22:06:31,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 22:06:31,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616707682] [2023-08-31 22:06:31,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616707682] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 22:06:31,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368232617] [2023-08-31 22:06:31,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 22:06:31,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 22:06:31,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 22:06:31,279 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) [2023-08-31 22:06:31,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process Killed by 15