./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-chromosome-symm.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 c7fdb1595c27c144c3bf111946260cb3946663200a2d53f7fba5455031291c4f --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:49:57,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:49:57,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:49:57,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:49:57,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:49:57,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:49:57,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:49:57,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:49:57,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:49:57,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:49:57,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:49:57,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:49:57,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:49:57,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:49:57,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:49:57,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:49:57,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:49:57,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:49:57,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:49:57,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:49:57,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:49:57,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:49:57,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:49:57,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:49:57,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:49:57,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:49:57,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:49:57,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:49:57,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:49:57,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:49:57,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:49:57,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:49:57,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:49:57,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:49:57,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:49:57,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:49:57,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:49:57,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:49:57,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:49:57,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:49:57,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:49:57,799 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:49:57,823 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:49:57,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:49:57,825 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:49:57,825 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:49:57,826 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:49:57,826 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:49:57,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:49:57,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:49:57,827 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:49:57,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:49:57,828 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:49:57,828 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:49:57,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:49:57,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:49:57,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:49:57,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:49:57,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:49:57,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:49:57,829 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:49:57,829 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:49:57,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:49:57,830 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:49:57,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:49:57,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:49:57,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:49:57,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:49:57,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:49:57,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:49:57,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:49:57,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:49:57,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:49:57,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:49:57,832 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:49:57,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:49:57,832 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:49:57,832 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:49:57,832 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:49:57,833 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7fdb1595c27c144c3bf111946260cb3946663200a2d53f7fba5455031291c4f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:49:58,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:49:58,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:49:58,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:49:58,156 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:49:58,156 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:49:58,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2023-08-29 18:49:59,409 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:49:59,618 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:49:59,619 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2023-08-29 18:49:59,626 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3924b5b64/f617d9f2e5c340f3999d1106acf917eb/FLAG9d11b0ae3 [2023-08-29 18:49:59,648 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3924b5b64/f617d9f2e5c340f3999d1106acf917eb [2023-08-29 18:49:59,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:49:59,652 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:49:59,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:49:59,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:49:59,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:49:59,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:49:59" (1/1) ... [2023-08-29 18:49:59,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5637b263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:59, skipping insertion in model container [2023-08-29 18:49:59,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:49:59" (1/1) ... [2023-08-29 18:49:59,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:49:59,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:49:59,889 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c[2695,2708] [2023-08-29 18:49:59,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:49:59,914 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:49:59,951 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c[2695,2708] [2023-08-29 18:49:59,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:49:59,983 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:49:59,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:59 WrapperNode [2023-08-29 18:49:59,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:49:59,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:49:59,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:49:59,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:49:59,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:59" (1/1) ... [2023-08-29 18:50:00,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:59" (1/1) ... [2023-08-29 18:50:00,045 INFO L138 Inliner]: procedures = 25, calls = 37, calls flagged for inlining = 15, calls inlined = 19, statements flattened = 338 [2023-08-29 18:50:00,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:50:00,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:50:00,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:50:00,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:50:00,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:59" (1/1) ... [2023-08-29 18:50:00,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:59" (1/1) ... [2023-08-29 18:50:00,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:59" (1/1) ... [2023-08-29 18:50:00,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:59" (1/1) ... [2023-08-29 18:50:00,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:59" (1/1) ... [2023-08-29 18:50:00,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:59" (1/1) ... [2023-08-29 18:50:00,105 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:59" (1/1) ... [2023-08-29 18:50:00,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:59" (1/1) ... [2023-08-29 18:50:00,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:50:00,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:50:00,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:50:00,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:50:00,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:59" (1/1) ... [2023-08-29 18:50:00,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:50:00,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:50:00,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 18:50:00,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 18:50:00,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:50:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:50:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:50:00,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:50:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 18:50:00,188 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 18:50:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 18:50:00,188 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 18:50:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:50:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 18:50:00,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:50:00,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:50:00,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:50:00,190 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 18:50:00,286 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:50:00,288 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:50:00,834 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:50:00,846 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:50:00,846 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-29 18:50:00,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:50:00 BoogieIcfgContainer [2023-08-29 18:50:00,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:50:00,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:50:00,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:50:00,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:50:00,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:49:59" (1/3) ... [2023-08-29 18:50:00,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400ddc49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:50:00, skipping insertion in model container [2023-08-29 18:50:00,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:49:59" (2/3) ... [2023-08-29 18:50:00,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400ddc49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:50:00, skipping insertion in model container [2023-08-29 18:50:00,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:50:00" (3/3) ... [2023-08-29 18:50:00,856 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2023-08-29 18:50:00,865 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:50:00,874 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:50:00,874 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-08-29 18:50:00,874 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:50:01,048 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 18:50:01,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 391 places, 410 transitions, 836 flow [2023-08-29 18:50:01,263 INFO L130 PetriNetUnfolder]: 26/408 cut-off events. [2023-08-29 18:50:01,264 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 18:50:01,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 408 events. 26/408 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 678 event pairs, 0 based on Foata normal form. 0/346 useless extension candidates. Maximal degree in co-relation 235. Up to 2 conditions per place. [2023-08-29 18:50:01,273 INFO L82 GeneralOperation]: Start removeDead. Operand has 391 places, 410 transitions, 836 flow [2023-08-29 18:50:01,285 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 373 places, 390 transitions, 792 flow [2023-08-29 18:50:01,288 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:50:01,300 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 390 transitions, 792 flow [2023-08-29 18:50:01,303 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 390 transitions, 792 flow [2023-08-29 18:50:01,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 390 transitions, 792 flow [2023-08-29 18:50:01,371 INFO L130 PetriNetUnfolder]: 24/390 cut-off events. [2023-08-29 18:50:01,372 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 18:50:01,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 390 events. 24/390 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 666 event pairs, 0 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 235. Up to 2 conditions per place. [2023-08-29 18:50:01,386 INFO L119 LiptonReduction]: Number of co-enabled transitions 24320 [2023-08-29 18:50:09,824 INFO L134 LiptonReduction]: Checked pairs total: 77925 [2023-08-29 18:50:09,825 INFO L136 LiptonReduction]: Total number of compositions: 403 [2023-08-29 18:50:09,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:50:09,841 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;@13e08d87, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:50:09,841 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-08-29 18:50:09,843 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2023-08-29 18:50:09,843 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:50:09,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:09,844 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-29 18:50:09,844 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:50:09,848 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:09,848 INFO L85 PathProgramCache]: Analyzing trace with hash 49430, now seen corresponding path program 1 times [2023-08-29 18:50:09,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:09,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525897680] [2023-08-29 18:50:09,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:09,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:10,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:50:10,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:10,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525897680] [2023-08-29 18:50:10,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525897680] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:10,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:10,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 18:50:10,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322388688] [2023-08-29 18:50:10,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:10,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 18:50:10,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:10,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 18:50:10,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 18:50:10,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 813 [2023-08-29 18:50:10,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 100 transitions, 212 flow. Second operand has 2 states, 2 states have (on average 389.0) internal successors, (778), 2 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:10,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 813 [2023-08-29 18:50:10,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:10,267 INFO L130 PetriNetUnfolder]: 175/765 cut-off events. [2023-08-29 18:50:10,268 INFO L131 PetriNetUnfolder]: For 58/85 co-relation queries the response was YES. [2023-08-29 18:50:10,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1095 conditions, 765 events. 175/765 cut-off events. For 58/85 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5336 event pairs, 141 based on Foata normal form. 56/685 useless extension candidates. Maximal degree in co-relation 948. Up to 304 conditions per place. [2023-08-29 18:50:10,276 INFO L137 encePairwiseOnDemand]: 789/813 looper letters, 25 selfloop transitions, 0 changer transitions 1/75 dead transitions. [2023-08-29 18:50:10,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 75 transitions, 214 flow [2023-08-29 18:50:10,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 18:50:10,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 18:50:10,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 826 transitions. [2023-08-29 18:50:10,295 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5079950799507995 [2023-08-29 18:50:10,297 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 826 transitions. [2023-08-29 18:50:10,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 826 transitions. [2023-08-29 18:50:10,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:10,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 826 transitions. [2023-08-29 18:50:10,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 413.0) internal successors, (826), 2 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 813.0) internal successors, (2439), 3 states have internal predecessors, (2439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,334 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 813.0) internal successors, (2439), 3 states have internal predecessors, (2439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,335 INFO L175 Difference]: Start difference. First operand has 101 places, 100 transitions, 212 flow. Second operand 2 states and 826 transitions. [2023-08-29 18:50:10,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 75 transitions, 214 flow [2023-08-29 18:50:10,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 75 transitions, 206 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 18:50:10,342 INFO L231 Difference]: Finished difference. Result has 75 places, 74 transitions, 151 flow [2023-08-29 18:50:10,343 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=151, PETRI_PLACES=75, PETRI_TRANSITIONS=74} [2023-08-29 18:50:10,348 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -26 predicate places. [2023-08-29 18:50:10,348 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 74 transitions, 151 flow [2023-08-29 18:50:10,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 389.0) internal successors, (778), 2 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,349 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:10,350 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 18:50:10,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:50:10,351 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:50:10,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:10,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1512677996, now seen corresponding path program 1 times [2023-08-29 18:50:10,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:10,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996973894] [2023-08-29 18:50:10,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:10,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:10,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:50:10,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:10,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996973894] [2023-08-29 18:50:10,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996973894] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:10,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:10,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:50:10,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383955976] [2023-08-29 18:50:10,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:10,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:50:10,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:10,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:50:10,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:50:10,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 813 [2023-08-29 18:50:10,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 74 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 383.0) internal successors, (1149), 3 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:10,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 813 [2023-08-29 18:50:10,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:10,625 INFO L130 PetriNetUnfolder]: 224/795 cut-off events. [2023-08-29 18:50:10,626 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 18:50:10,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1191 conditions, 795 events. 224/795 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5215 event pairs, 74 based on Foata normal form. 0/663 useless extension candidates. Maximal degree in co-relation 1188. Up to 370 conditions per place. [2023-08-29 18:50:10,630 INFO L137 encePairwiseOnDemand]: 809/813 looper letters, 32 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2023-08-29 18:50:10,630 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 79 transitions, 230 flow [2023-08-29 18:50:10,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:50:10,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:50:10,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1179 transitions. [2023-08-29 18:50:10,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4833948339483395 [2023-08-29 18:50:10,634 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1179 transitions. [2023-08-29 18:50:10,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1179 transitions. [2023-08-29 18:50:10,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:10,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1179 transitions. [2023-08-29 18:50:10,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,643 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,643 INFO L175 Difference]: Start difference. First operand has 75 places, 74 transitions, 151 flow. Second operand 3 states and 1179 transitions. [2023-08-29 18:50:10,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 79 transitions, 230 flow [2023-08-29 18:50:10,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 79 transitions, 230 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:50:10,646 INFO L231 Difference]: Finished difference. Result has 75 places, 74 transitions, 161 flow [2023-08-29 18:50:10,646 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=75, PETRI_TRANSITIONS=74} [2023-08-29 18:50:10,648 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -26 predicate places. [2023-08-29 18:50:10,648 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 74 transitions, 161 flow [2023-08-29 18:50:10,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 383.0) internal successors, (1149), 3 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:10,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:10,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:50:10,649 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:50:10,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:10,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1969884500, now seen corresponding path program 1 times [2023-08-29 18:50:10,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:10,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126949536] [2023-08-29 18:50:10,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:10,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:10,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:50:10,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:10,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126949536] [2023-08-29 18:50:10,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126949536] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:10,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:10,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:50:10,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912789911] [2023-08-29 18:50:10,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:10,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:50:10,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:10,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:50:10,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:50:10,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 813 [2023-08-29 18:50:10,748 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 74 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 383.6666666666667) internal successors, (1151), 3 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,748 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:10,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 813 [2023-08-29 18:50:10,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:10,863 INFO L130 PetriNetUnfolder]: 204/829 cut-off events. [2023-08-29 18:50:10,864 INFO L131 PetriNetUnfolder]: For 6/38 co-relation queries the response was YES. [2023-08-29 18:50:10,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1205 conditions, 829 events. 204/829 cut-off events. For 6/38 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5809 event pairs, 73 based on Foata normal form. 1/691 useless extension candidates. Maximal degree in co-relation 1201. Up to 337 conditions per place. [2023-08-29 18:50:10,868 INFO L137 encePairwiseOnDemand]: 809/813 looper letters, 30 selfloop transitions, 2 changer transitions 0/78 dead transitions. [2023-08-29 18:50:10,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 78 transitions, 234 flow [2023-08-29 18:50:10,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:50:10,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:50:10,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1177 transitions. [2023-08-29 18:50:10,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4825748257482575 [2023-08-29 18:50:10,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1177 transitions. [2023-08-29 18:50:10,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1177 transitions. [2023-08-29 18:50:10,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:10,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1177 transitions. [2023-08-29 18:50:10,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 392.3333333333333) internal successors, (1177), 3 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,886 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,886 INFO L175 Difference]: Start difference. First operand has 75 places, 74 transitions, 161 flow. Second operand 3 states and 1177 transitions. [2023-08-29 18:50:10,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 78 transitions, 234 flow [2023-08-29 18:50:10,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 78 transitions, 234 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:50:10,888 INFO L231 Difference]: Finished difference. Result has 76 places, 74 transitions, 171 flow [2023-08-29 18:50:10,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=171, PETRI_PLACES=76, PETRI_TRANSITIONS=74} [2023-08-29 18:50:10,889 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -25 predicate places. [2023-08-29 18:50:10,889 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 74 transitions, 171 flow [2023-08-29 18:50:10,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 383.6666666666667) internal successors, (1151), 3 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:10,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:10,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:50:10,891 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:50:10,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:10,891 INFO L85 PathProgramCache]: Analyzing trace with hash 88411570, now seen corresponding path program 1 times [2023-08-29 18:50:10,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:10,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141242799] [2023-08-29 18:50:10,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:10,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:10,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:50:10,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:10,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141242799] [2023-08-29 18:50:10,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141242799] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:10,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:10,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:50:10,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846138904] [2023-08-29 18:50:10,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:10,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:50:10,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:10,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:50:10,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:50:10,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 813 [2023-08-29 18:50:10,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 74 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:10,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:10,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 813 [2023-08-29 18:50:10,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:11,103 INFO L130 PetriNetUnfolder]: 368/1352 cut-off events. [2023-08-29 18:50:11,104 INFO L131 PetriNetUnfolder]: For 46/75 co-relation queries the response was YES. [2023-08-29 18:50:11,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2068 conditions, 1352 events. 368/1352 cut-off events. For 46/75 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9710 event pairs, 115 based on Foata normal form. 5/1156 useless extension candidates. Maximal degree in co-relation 2063. Up to 428 conditions per place. [2023-08-29 18:50:11,111 INFO L137 encePairwiseOnDemand]: 809/813 looper letters, 44 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2023-08-29 18:50:11,111 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 89 transitions, 297 flow [2023-08-29 18:50:11,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:50:11,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:50:11,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1190 transitions. [2023-08-29 18:50:11,115 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4879048790487905 [2023-08-29 18:50:11,116 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1190 transitions. [2023-08-29 18:50:11,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1190 transitions. [2023-08-29 18:50:11,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:11,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1190 transitions. [2023-08-29 18:50:11,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.6666666666667) internal successors, (1190), 3 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:11,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:11,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:11,129 INFO L175 Difference]: Start difference. First operand has 76 places, 74 transitions, 171 flow. Second operand 3 states and 1190 transitions. [2023-08-29 18:50:11,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 89 transitions, 297 flow [2023-08-29 18:50:11,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 89 transitions, 297 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:50:11,134 INFO L231 Difference]: Finished difference. Result has 77 places, 74 transitions, 181 flow [2023-08-29 18:50:11,134 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=181, PETRI_PLACES=77, PETRI_TRANSITIONS=74} [2023-08-29 18:50:11,135 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -24 predicate places. [2023-08-29 18:50:11,136 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 74 transitions, 181 flow [2023-08-29 18:50:11,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:11,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:11,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:11,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:50:11,137 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:50:11,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:11,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1902678133, now seen corresponding path program 1 times [2023-08-29 18:50:11,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:11,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90275035] [2023-08-29 18:50:11,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:11,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:11,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:50:11,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:11,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90275035] [2023-08-29 18:50:11,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90275035] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:11,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:11,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:50:11,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067266210] [2023-08-29 18:50:11,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:11,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:50:11,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:11,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:50:11,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:50:11,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 813 [2023-08-29 18:50:11,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:11,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:11,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 813 [2023-08-29 18:50:11,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:11,440 INFO L130 PetriNetUnfolder]: 294/1158 cut-off events. [2023-08-29 18:50:11,441 INFO L131 PetriNetUnfolder]: For 58/85 co-relation queries the response was YES. [2023-08-29 18:50:11,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1828 conditions, 1158 events. 294/1158 cut-off events. For 58/85 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8043 event pairs, 236 based on Foata normal form. 0/1010 useless extension candidates. Maximal degree in co-relation 1822. Up to 510 conditions per place. [2023-08-29 18:50:11,448 INFO L137 encePairwiseOnDemand]: 808/813 looper letters, 25 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2023-08-29 18:50:11,449 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 76 transitions, 243 flow [2023-08-29 18:50:11,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:50:11,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:50:11,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1169 transitions. [2023-08-29 18:50:11,453 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4792947929479295 [2023-08-29 18:50:11,453 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1169 transitions. [2023-08-29 18:50:11,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1169 transitions. [2023-08-29 18:50:11,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:11,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1169 transitions. [2023-08-29 18:50:11,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.6666666666667) internal successors, (1169), 3 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:11,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:11,482 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:11,483 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 181 flow. Second operand 3 states and 1169 transitions. [2023-08-29 18:50:11,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 76 transitions, 243 flow [2023-08-29 18:50:11,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 76 transitions, 243 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:50:11,485 INFO L231 Difference]: Finished difference. Result has 80 places, 76 transitions, 203 flow [2023-08-29 18:50:11,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=80, PETRI_TRANSITIONS=76} [2023-08-29 18:50:11,488 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -21 predicate places. [2023-08-29 18:50:11,488 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 76 transitions, 203 flow [2023-08-29 18:50:11,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:11,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:11,489 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:11,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:50:11,490 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:50:11,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:11,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1385921026, now seen corresponding path program 1 times [2023-08-29 18:50:11,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:11,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177286389] [2023-08-29 18:50:11,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:11,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:11,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 18:50:11,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:11,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177286389] [2023-08-29 18:50:11,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177286389] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 18:50:11,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923911276] [2023-08-29 18:50:11,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:11,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:50:11,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:50:11,581 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 18:50:11,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 18:50:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:11,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-29 18:50:11,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 18:50:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 18:50:11,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 18:50:11,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 18:50:11,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923911276] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 18:50:11,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 18:50:11,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-29 18:50:11,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228051201] [2023-08-29 18:50:11,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 18:50:11,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 18:50:11,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:11,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 18:50:11,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-08-29 18:50:12,036 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 813 [2023-08-29 18:50:12,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 76 transitions, 203 flow. Second operand has 8 states, 8 states have (on average 377.875) internal successors, (3023), 8 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:12,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:12,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 813 [2023-08-29 18:50:12,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:12,219 INFO L130 PetriNetUnfolder]: 294/1164 cut-off events. [2023-08-29 18:50:12,219 INFO L131 PetriNetUnfolder]: For 58/85 co-relation queries the response was YES. [2023-08-29 18:50:12,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1857 conditions, 1164 events. 294/1164 cut-off events. For 58/85 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8052 event pairs, 236 based on Foata normal form. 3/1020 useless extension candidates. Maximal degree in co-relation 1849. Up to 510 conditions per place. [2023-08-29 18:50:12,227 INFO L137 encePairwiseOnDemand]: 808/813 looper letters, 25 selfloop transitions, 10 changer transitions 0/82 dead transitions. [2023-08-29 18:50:12,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 82 transitions, 297 flow [2023-08-29 18:50:12,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:50:12,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:50:12,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2295 transitions. [2023-08-29 18:50:12,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.470479704797048 [2023-08-29 18:50:12,234 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2295 transitions. [2023-08-29 18:50:12,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2295 transitions. [2023-08-29 18:50:12,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:12,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2295 transitions. [2023-08-29 18:50:12,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 382.5) internal successors, (2295), 6 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:12,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:12,258 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:12,258 INFO L175 Difference]: Start difference. First operand has 80 places, 76 transitions, 203 flow. Second operand 6 states and 2295 transitions. [2023-08-29 18:50:12,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 82 transitions, 297 flow [2023-08-29 18:50:12,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 82 transitions, 293 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:50:12,261 INFO L231 Difference]: Finished difference. Result has 87 places, 82 transitions, 265 flow [2023-08-29 18:50:12,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=265, PETRI_PLACES=87, PETRI_TRANSITIONS=82} [2023-08-29 18:50:12,262 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -14 predicate places. [2023-08-29 18:50:12,262 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 82 transitions, 265 flow [2023-08-29 18:50:12,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 377.875) internal successors, (3023), 8 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:12,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:12,263 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:12,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 18:50:12,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-29 18:50:12,469 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:50:12,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:12,469 INFO L85 PathProgramCache]: Analyzing trace with hash 82071093, now seen corresponding path program 2 times [2023-08-29 18:50:12,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:12,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480689599] [2023-08-29 18:50:12,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:12,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:12,596 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 18:50:12,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:12,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480689599] [2023-08-29 18:50:12,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480689599] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 18:50:12,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12426924] [2023-08-29 18:50:12,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 18:50:12,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:50:12,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:50:12,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 18:50:12,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 18:50:12,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 18:50:12,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 18:50:12,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-29 18:50:12,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 18:50:12,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-29 18:50:12,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-29 18:50:12,840 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 18:50:12,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 18:50:12,873 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 18:50:12,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 18:50:12,896 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:50:12,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 18:50:12,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12426924] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:12,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 18:50:12,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2023-08-29 18:50:12,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650554445] [2023-08-29 18:50:12,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:12,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 18:50:12,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:12,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 18:50:12,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-29 18:50:13,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 813 [2023-08-29 18:50:13,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 82 transitions, 265 flow. Second operand has 7 states, 7 states have (on average 372.85714285714283) internal successors, (2610), 7 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:13,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:13,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 813 [2023-08-29 18:50:13,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:13,474 INFO L130 PetriNetUnfolder]: 955/1949 cut-off events. [2023-08-29 18:50:13,474 INFO L131 PetriNetUnfolder]: For 182/182 co-relation queries the response was YES. [2023-08-29 18:50:13,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3848 conditions, 1949 events. 955/1949 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 11679 event pairs, 68 based on Foata normal form. 0/1721 useless extension candidates. Maximal degree in co-relation 3837. Up to 582 conditions per place. [2023-08-29 18:50:13,486 INFO L137 encePairwiseOnDemand]: 807/813 looper letters, 98 selfloop transitions, 5 changer transitions 0/145 dead transitions. [2023-08-29 18:50:13,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 145 transitions, 637 flow [2023-08-29 18:50:13,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 18:50:13,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 18:50:13,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2683 transitions. [2023-08-29 18:50:13,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4714461430328589 [2023-08-29 18:50:13,494 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2683 transitions. [2023-08-29 18:50:13,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2683 transitions. [2023-08-29 18:50:13,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:13,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2683 transitions. [2023-08-29 18:50:13,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 383.2857142857143) internal successors, (2683), 7 states have internal predecessors, (2683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:13,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:13,523 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:13,523 INFO L175 Difference]: Start difference. First operand has 87 places, 82 transitions, 265 flow. Second operand 7 states and 2683 transitions. [2023-08-29 18:50:13,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 145 transitions, 637 flow [2023-08-29 18:50:13,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 145 transitions, 621 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-29 18:50:13,528 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 257 flow [2023-08-29 18:50:13,529 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=257, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2023-08-29 18:50:13,529 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -10 predicate places. [2023-08-29 18:50:13,529 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 257 flow [2023-08-29 18:50:13,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 372.85714285714283) internal successors, (2610), 7 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:13,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:13,531 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:13,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 18:50:13,736 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,SelfDestructingSolverStorable6 [2023-08-29 18:50:13,736 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:50:13,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:13,737 INFO L85 PathProgramCache]: Analyzing trace with hash -2047007933, now seen corresponding path program 1 times [2023-08-29 18:50:13,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:13,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805823906] [2023-08-29 18:50:13,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:13,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:13,785 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:50:13,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:13,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805823906] [2023-08-29 18:50:13,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805823906] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:13,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:13,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:50:13,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155433556] [2023-08-29 18:50:13,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:13,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:50:13,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:13,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:50:13,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:50:13,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 813 [2023-08-29 18:50:13,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 385.0) internal successors, (1155), 3 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:13,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:13,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 813 [2023-08-29 18:50:13,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:13,962 INFO L130 PetriNetUnfolder]: 367/1352 cut-off events. [2023-08-29 18:50:13,963 INFO L131 PetriNetUnfolder]: For 172/199 co-relation queries the response was YES. [2023-08-29 18:50:13,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2338 conditions, 1352 events. 367/1352 cut-off events. For 172/199 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 9527 event pairs, 101 based on Foata normal form. 1/1211 useless extension candidates. Maximal degree in co-relation 2326. Up to 441 conditions per place. [2023-08-29 18:50:13,971 INFO L137 encePairwiseOnDemand]: 809/813 looper letters, 51 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2023-08-29 18:50:13,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 95 transitions, 400 flow [2023-08-29 18:50:13,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:50:13,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:50:13,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1188 transitions. [2023-08-29 18:50:13,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4870848708487085 [2023-08-29 18:50:13,975 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1188 transitions. [2023-08-29 18:50:13,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1188 transitions. [2023-08-29 18:50:13,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:13,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1188 transitions. [2023-08-29 18:50:13,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:13,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:13,982 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:13,982 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 257 flow. Second operand 3 states and 1188 transitions. [2023-08-29 18:50:13,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 95 transitions, 400 flow [2023-08-29 18:50:13,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 95 transitions, 389 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:50:13,985 INFO L231 Difference]: Finished difference. Result has 87 places, 81 transitions, 258 flow [2023-08-29 18:50:13,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=87, PETRI_TRANSITIONS=81} [2023-08-29 18:50:13,986 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -14 predicate places. [2023-08-29 18:50:13,986 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 81 transitions, 258 flow [2023-08-29 18:50:13,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 385.0) internal successors, (1155), 3 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:13,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:13,987 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:13,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 18:50:13,987 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:50:13,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:13,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1250251365, now seen corresponding path program 1 times [2023-08-29 18:50:13,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:13,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409582268] [2023-08-29 18:50:13,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:13,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:14,120 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 18:50:14,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:14,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409582268] [2023-08-29 18:50:14,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409582268] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 18:50:14,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530133156] [2023-08-29 18:50:14,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:14,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:50:14,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:50:14,122 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 18:50:14,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 18:50:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:14,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-29 18:50:14,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 18:50:14,325 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 18:50:14,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 18:50:14,362 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 18:50:14,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530133156] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 18:50:14,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 18:50:14,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-29 18:50:14,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385686319] [2023-08-29 18:50:14,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 18:50:14,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 18:50:14,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:14,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 18:50:14,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2023-08-29 18:50:14,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 813 [2023-08-29 18:50:14,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 81 transitions, 258 flow. Second operand has 13 states, 13 states have (on average 377.61538461538464) internal successors, (4909), 13 states have internal predecessors, (4909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:14,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:14,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 813 [2023-08-29 18:50:14,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:14,773 INFO L130 PetriNetUnfolder]: 317/1247 cut-off events. [2023-08-29 18:50:14,773 INFO L131 PetriNetUnfolder]: For 80/109 co-relation queries the response was YES. [2023-08-29 18:50:14,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2088 conditions, 1247 events. 317/1247 cut-off events. For 80/109 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 8677 event pairs, 248 based on Foata normal form. 1/1140 useless extension candidates. Maximal degree in co-relation 2076. Up to 537 conditions per place. [2023-08-29 18:50:14,780 INFO L137 encePairwiseOnDemand]: 808/813 looper letters, 26 selfloop transitions, 12 changer transitions 0/83 dead transitions. [2023-08-29 18:50:14,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 83 transitions, 346 flow [2023-08-29 18:50:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 18:50:14,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 18:50:14,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2669 transitions. [2023-08-29 18:50:14,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4689861184326129 [2023-08-29 18:50:14,788 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2669 transitions. [2023-08-29 18:50:14,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2669 transitions. [2023-08-29 18:50:14,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:14,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2669 transitions. [2023-08-29 18:50:14,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 381.2857142857143) internal successors, (2669), 7 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:14,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:14,801 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:14,801 INFO L175 Difference]: Start difference. First operand has 87 places, 81 transitions, 258 flow. Second operand 7 states and 2669 transitions. [2023-08-29 18:50:14,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 83 transitions, 346 flow [2023-08-29 18:50:14,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 83 transitions, 346 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:50:14,804 INFO L231 Difference]: Finished difference. Result has 94 places, 83 transitions, 304 flow [2023-08-29 18:50:14,804 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=304, PETRI_PLACES=94, PETRI_TRANSITIONS=83} [2023-08-29 18:50:14,805 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -7 predicate places. [2023-08-29 18:50:14,805 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 83 transitions, 304 flow [2023-08-29 18:50:14,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 377.61538461538464) internal successors, (4909), 13 states have internal predecessors, (4909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:14,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:14,806 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:14,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-29 18:50:15,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:50:15,017 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:50:15,017 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:15,017 INFO L85 PathProgramCache]: Analyzing trace with hash -732802510, now seen corresponding path program 2 times [2023-08-29 18:50:15,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:15,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730072801] [2023-08-29 18:50:15,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:15,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:15,464 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-29 18:50:15,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:15,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730072801] [2023-08-29 18:50:15,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730072801] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:15,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:15,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:50:15,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257193454] [2023-08-29 18:50:15,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:15,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:50:15,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:15,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:50:15,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:50:15,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 813 [2023-08-29 18:50:15,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 83 transitions, 304 flow. Second operand has 6 states, 6 states have (on average 372.5) internal successors, (2235), 6 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:15,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:15,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 813 [2023-08-29 18:50:15,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:16,004 INFO L130 PetriNetUnfolder]: 540/1556 cut-off events. [2023-08-29 18:50:16,004 INFO L131 PetriNetUnfolder]: For 97/124 co-relation queries the response was YES. [2023-08-29 18:50:16,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2855 conditions, 1556 events. 540/1556 cut-off events. For 97/124 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 10235 event pairs, 248 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 2841. Up to 539 conditions per place. [2023-08-29 18:50:16,014 INFO L137 encePairwiseOnDemand]: 807/813 looper letters, 86 selfloop transitions, 5 changer transitions 0/130 dead transitions. [2023-08-29 18:50:16,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 130 transitions, 604 flow [2023-08-29 18:50:16,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:50:16,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:50:16,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2295 transitions. [2023-08-29 18:50:16,020 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.470479704797048 [2023-08-29 18:50:16,020 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2295 transitions. [2023-08-29 18:50:16,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2295 transitions. [2023-08-29 18:50:16,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:16,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2295 transitions. [2023-08-29 18:50:16,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 382.5) internal successors, (2295), 6 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:16,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:16,032 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:16,032 INFO L175 Difference]: Start difference. First operand has 94 places, 83 transitions, 304 flow. Second operand 6 states and 2295 transitions. [2023-08-29 18:50:16,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 130 transitions, 604 flow [2023-08-29 18:50:16,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 130 transitions, 580 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-29 18:50:16,035 INFO L231 Difference]: Finished difference. Result has 94 places, 82 transitions, 288 flow [2023-08-29 18:50:16,035 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=288, PETRI_PLACES=94, PETRI_TRANSITIONS=82} [2023-08-29 18:50:16,036 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -7 predicate places. [2023-08-29 18:50:16,036 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 82 transitions, 288 flow [2023-08-29 18:50:16,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 372.5) internal successors, (2235), 6 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:16,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:16,037 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:16,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 18:50:16,037 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:50:16,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:16,037 INFO L85 PathProgramCache]: Analyzing trace with hash 642778151, now seen corresponding path program 1 times [2023-08-29 18:50:16,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:16,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119478265] [2023-08-29 18:50:16,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:16,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:16,526 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-29 18:50:16,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:16,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119478265] [2023-08-29 18:50:16,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119478265] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:16,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:16,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:50:16,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740561778] [2023-08-29 18:50:16,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:16,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:50:16,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:16,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:50:16,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:50:16,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 813 [2023-08-29 18:50:16,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 82 transitions, 288 flow. Second operand has 6 states, 6 states have (on average 372.8333333333333) internal successors, (2237), 6 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:16,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:16,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 813 [2023-08-29 18:50:16,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:17,058 INFO L130 PetriNetUnfolder]: 512/1395 cut-off events. [2023-08-29 18:50:17,058 INFO L131 PetriNetUnfolder]: For 167/197 co-relation queries the response was YES. [2023-08-29 18:50:17,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2762 conditions, 1395 events. 512/1395 cut-off events. For 167/197 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8561 event pairs, 231 based on Foata normal form. 1/1341 useless extension candidates. Maximal degree in co-relation 2747. Up to 507 conditions per place. [2023-08-29 18:50:17,068 INFO L137 encePairwiseOnDemand]: 807/813 looper letters, 78 selfloop transitions, 5 changer transitions 0/121 dead transitions. [2023-08-29 18:50:17,069 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 121 transitions, 572 flow [2023-08-29 18:50:17,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:50:17,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:50:17,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2287 transitions. [2023-08-29 18:50:17,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46883968839688395 [2023-08-29 18:50:17,075 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2287 transitions. [2023-08-29 18:50:17,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2287 transitions. [2023-08-29 18:50:17,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:17,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2287 transitions. [2023-08-29 18:50:17,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 381.1666666666667) internal successors, (2287), 6 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:17,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:17,087 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:17,087 INFO L175 Difference]: Start difference. First operand has 94 places, 82 transitions, 288 flow. Second operand 6 states and 2287 transitions. [2023-08-29 18:50:17,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 121 transitions, 572 flow [2023-08-29 18:50:17,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 121 transitions, 554 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:50:17,090 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 286 flow [2023-08-29 18:50:17,090 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2023-08-29 18:50:17,091 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -8 predicate places. [2023-08-29 18:50:17,091 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 286 flow [2023-08-29 18:50:17,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 372.8333333333333) internal successors, (2237), 6 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:17,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:17,092 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:17,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 18:50:17,092 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:50:17,093 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:17,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1824341845, now seen corresponding path program 1 times [2023-08-29 18:50:17,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:17,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633512084] [2023-08-29 18:50:17,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:17,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:17,490 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-29 18:50:17,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:17,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633512084] [2023-08-29 18:50:17,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633512084] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:17,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:17,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:50:17,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652142749] [2023-08-29 18:50:17,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:17,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:50:17,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:17,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:50:17,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:50:17,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 813 [2023-08-29 18:50:17,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 286 flow. Second operand has 6 states, 6 states have (on average 374.1666666666667) internal successors, (2245), 6 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:17,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:17,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 813 [2023-08-29 18:50:17,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:17,959 INFO L130 PetriNetUnfolder]: 372/1237 cut-off events. [2023-08-29 18:50:17,959 INFO L131 PetriNetUnfolder]: For 111/140 co-relation queries the response was YES. [2023-08-29 18:50:17,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2352 conditions, 1237 events. 372/1237 cut-off events. For 111/140 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 8119 event pairs, 235 based on Foata normal form. 0/1189 useless extension candidates. Maximal degree in co-relation 2337. Up to 515 conditions per place. [2023-08-29 18:50:17,967 INFO L137 encePairwiseOnDemand]: 808/813 looper letters, 66 selfloop transitions, 4 changer transitions 8/116 dead transitions. [2023-08-29 18:50:17,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 116 transitions, 540 flow [2023-08-29 18:50:17,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:50:17,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:50:17,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2288 transitions. [2023-08-29 18:50:17,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46904469044690444 [2023-08-29 18:50:17,973 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2288 transitions. [2023-08-29 18:50:17,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2288 transitions. [2023-08-29 18:50:17,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:17,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2288 transitions. [2023-08-29 18:50:17,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 381.3333333333333) internal successors, (2288), 6 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:17,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:17,984 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:17,985 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 286 flow. Second operand 6 states and 2288 transitions. [2023-08-29 18:50:17,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 116 transitions, 540 flow [2023-08-29 18:50:17,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 116 transitions, 522 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:50:17,988 INFO L231 Difference]: Finished difference. Result has 92 places, 80 transitions, 282 flow [2023-08-29 18:50:17,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=282, PETRI_PLACES=92, PETRI_TRANSITIONS=80} [2023-08-29 18:50:17,988 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -9 predicate places. [2023-08-29 18:50:17,989 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 80 transitions, 282 flow [2023-08-29 18:50:17,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 374.1666666666667) internal successors, (2245), 6 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:17,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:17,990 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:17,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 18:50:17,990 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:50:17,990 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:17,990 INFO L85 PathProgramCache]: Analyzing trace with hash -796614774, now seen corresponding path program 1 times [2023-08-29 18:50:17,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:17,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761184484] [2023-08-29 18:50:17,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:17,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:18,366 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-29 18:50:18,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:18,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761184484] [2023-08-29 18:50:18,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761184484] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:18,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:18,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:50:18,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300043999] [2023-08-29 18:50:18,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:18,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:50:18,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:18,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:50:18,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:50:18,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 813 [2023-08-29 18:50:18,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 372.8333333333333) internal successors, (2237), 6 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:18,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:18,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 813 [2023-08-29 18:50:18,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:18,863 INFO L130 PetriNetUnfolder]: 380/1228 cut-off events. [2023-08-29 18:50:18,864 INFO L131 PetriNetUnfolder]: For 109/138 co-relation queries the response was YES. [2023-08-29 18:50:18,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2262 conditions, 1228 events. 380/1228 cut-off events. For 109/138 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7829 event pairs, 231 based on Foata normal form. 0/1190 useless extension candidates. Maximal degree in co-relation 2247. Up to 509 conditions per place. [2023-08-29 18:50:18,870 INFO L137 encePairwiseOnDemand]: 807/813 looper letters, 60 selfloop transitions, 5 changer transitions 12/115 dead transitions. [2023-08-29 18:50:18,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 115 transitions, 534 flow [2023-08-29 18:50:18,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:50:18,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:50:18,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2285 transitions. [2023-08-29 18:50:18,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46842968429684295 [2023-08-29 18:50:18,878 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2285 transitions. [2023-08-29 18:50:18,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2285 transitions. [2023-08-29 18:50:18,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:18,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2285 transitions. [2023-08-29 18:50:18,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 380.8333333333333) internal successors, (2285), 6 states have internal predecessors, (2285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:18,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:18,890 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:18,890 INFO L175 Difference]: Start difference. First operand has 92 places, 80 transitions, 282 flow. Second operand 6 states and 2285 transitions. [2023-08-29 18:50:18,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 115 transitions, 534 flow [2023-08-29 18:50:18,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 115 transitions, 519 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 18:50:18,894 INFO L231 Difference]: Finished difference. Result has 92 places, 79 transitions, 283 flow [2023-08-29 18:50:18,894 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=283, PETRI_PLACES=92, PETRI_TRANSITIONS=79} [2023-08-29 18:50:18,895 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -9 predicate places. [2023-08-29 18:50:18,895 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 79 transitions, 283 flow [2023-08-29 18:50:18,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 372.8333333333333) internal successors, (2237), 6 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:18,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:18,896 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:18,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 18:50:18,896 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-29 18:50:18,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:18,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1898254503, now seen corresponding path program 1 times [2023-08-29 18:50:18,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:18,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114985854] [2023-08-29 18:50:18,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:18,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:19,298 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-29 18:50:19,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:19,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114985854] [2023-08-29 18:50:19,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114985854] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:19,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:19,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:50:19,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13376935] [2023-08-29 18:50:19,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:19,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:50:19,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:19,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:50:19,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:50:19,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 813 [2023-08-29 18:50:19,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 79 transitions, 283 flow. Second operand has 6 states, 6 states have (on average 372.5) internal successors, (2235), 6 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:19,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:19,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 813 [2023-08-29 18:50:19,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:19,774 INFO L130 PetriNetUnfolder]: 425/1284 cut-off events. [2023-08-29 18:50:19,775 INFO L131 PetriNetUnfolder]: For 124/153 co-relation queries the response was YES. [2023-08-29 18:50:19,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2442 conditions, 1284 events. 425/1284 cut-off events. For 124/153 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 8144 event pairs, 248 based on Foata normal form. 0/1237 useless extension candidates. Maximal degree in co-relation 2427. Up to 543 conditions per place. [2023-08-29 18:50:19,786 INFO L137 encePairwiseOnDemand]: 807/813 looper letters, 0 selfloop transitions, 0 changer transitions 122/122 dead transitions. [2023-08-29 18:50:19,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 122 transitions, 569 flow [2023-08-29 18:50:19,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:50:19,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:50:19,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2294 transitions. [2023-08-29 18:50:19,791 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4702747027470275 [2023-08-29 18:50:19,792 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2294 transitions. [2023-08-29 18:50:19,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2294 transitions. [2023-08-29 18:50:19,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:19,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2294 transitions. [2023-08-29 18:50:19,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 382.3333333333333) internal successors, (2294), 6 states have internal predecessors, (2294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:19,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:19,803 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:19,803 INFO L175 Difference]: Start difference. First operand has 92 places, 79 transitions, 283 flow. Second operand 6 states and 2294 transitions. [2023-08-29 18:50:19,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 122 transitions, 569 flow [2023-08-29 18:50:19,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 122 transitions, 543 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:50:19,806 INFO L231 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2023-08-29 18:50:19,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2023-08-29 18:50:19,808 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -10 predicate places. [2023-08-29 18:50:19,808 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 0 transitions, 0 flow [2023-08-29 18:50:19,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 372.5) internal successors, (2235), 6 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:19,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (59 of 60 remaining) [2023-08-29 18:50:19,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2023-08-29 18:50:19,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2023-08-29 18:50:19,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2023-08-29 18:50:19,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2023-08-29 18:50:19,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2023-08-29 18:50:19,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2023-08-29 18:50:19,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2023-08-29 18:50:19,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2023-08-29 18:50:19,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2023-08-29 18:50:19,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2023-08-29 18:50:19,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2023-08-29 18:50:19,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2023-08-29 18:50:19,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2023-08-29 18:50:19,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2023-08-29 18:50:19,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2023-08-29 18:50:19,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2023-08-29 18:50:19,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2023-08-29 18:50:19,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2023-08-29 18:50:19,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2023-08-29 18:50:19,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2023-08-29 18:50:19,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2023-08-29 18:50:19,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2023-08-29 18:50:19,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2023-08-29 18:50:19,814 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2023-08-29 18:50:19,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2023-08-29 18:50:19,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2023-08-29 18:50:19,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2023-08-29 18:50:19,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2023-08-29 18:50:19,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2023-08-29 18:50:19,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2023-08-29 18:50:19,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2023-08-29 18:50:19,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2023-08-29 18:50:19,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2023-08-29 18:50:19,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2023-08-29 18:50:19,816 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2023-08-29 18:50:19,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 60 remaining) [2023-08-29 18:50:19,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 60 remaining) [2023-08-29 18:50:19,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2023-08-29 18:50:19,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2023-08-29 18:50:19,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2023-08-29 18:50:19,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2023-08-29 18:50:19,817 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2023-08-29 18:50:19,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2023-08-29 18:50:19,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2023-08-29 18:50:19,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2023-08-29 18:50:19,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2023-08-29 18:50:19,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2023-08-29 18:50:19,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2023-08-29 18:50:19,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2023-08-29 18:50:19,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2023-08-29 18:50:19,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2023-08-29 18:50:19,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2023-08-29 18:50:19,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2023-08-29 18:50:19,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2023-08-29 18:50:19,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2023-08-29 18:50:19,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2023-08-29 18:50:19,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2023-08-29 18:50:19,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2023-08-29 18:50:19,820 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2023-08-29 18:50:19,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 18:50:19,821 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:19,826 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 18:50:19,826 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 18:50:19,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:50:19 BasicIcfg [2023-08-29 18:50:19,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 18:50:19,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 18:50:19,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 18:50:19,831 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 18:50:19,831 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:50:00" (3/4) ... [2023-08-29 18:50:19,834 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 18:50:19,839 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 18:50:19,839 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 18:50:19,845 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-08-29 18:50:19,846 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 18:50:19,846 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 18:50:19,847 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 18:50:19,898 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 18:50:19,898 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 18:50:19,899 INFO L158 Benchmark]: Toolchain (without parser) took 20247.10ms. Allocated memory was 71.3MB in the beginning and 302.0MB in the end (delta: 230.7MB). Free memory was 46.8MB in the beginning and 134.7MB in the end (delta: -87.9MB). Peak memory consumption was 140.9MB. Max. memory is 16.1GB. [2023-08-29 18:50:19,899 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:50:19,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.74ms. Allocated memory is still 71.3MB. Free memory was 46.6MB in the beginning and 51.4MB in the end (delta: -4.8MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-08-29 18:50:19,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.27ms. Allocated memory is still 71.3MB. Free memory was 51.4MB in the beginning and 48.3MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:50:19,900 INFO L158 Benchmark]: Boogie Preprocessor took 64.64ms. Allocated memory is still 71.3MB. Free memory was 48.3MB in the beginning and 45.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:50:19,901 INFO L158 Benchmark]: RCFGBuilder took 737.79ms. Allocated memory is still 71.3MB. Free memory was 45.6MB in the beginning and 33.2MB in the end (delta: 12.4MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-08-29 18:50:19,901 INFO L158 Benchmark]: TraceAbstraction took 18979.14ms. Allocated memory was 71.3MB in the beginning and 302.0MB in the end (delta: 230.7MB). Free memory was 32.7MB in the beginning and 139.9MB in the end (delta: -107.3MB). Peak memory consumption was 182.4MB. Max. memory is 16.1GB. [2023-08-29 18:50:19,901 INFO L158 Benchmark]: Witness Printer took 67.73ms. Allocated memory is still 302.0MB. Free memory was 139.9MB in the beginning and 134.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 18:50:19,903 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.74ms. Allocated memory is still 71.3MB. Free memory was 46.6MB in the beginning and 51.4MB in the end (delta: -4.8MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.27ms. Allocated memory is still 71.3MB. Free memory was 51.4MB in the beginning and 48.3MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.64ms. Allocated memory is still 71.3MB. Free memory was 48.3MB in the beginning and 45.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 737.79ms. Allocated memory is still 71.3MB. Free memory was 45.6MB in the beginning and 33.2MB in the end (delta: 12.4MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * TraceAbstraction took 18979.14ms. Allocated memory was 71.3MB in the beginning and 302.0MB in the end (delta: 230.7MB). Free memory was 32.7MB in the beginning and 139.9MB in the end (delta: -107.3MB). Peak memory consumption was 182.4MB. Max. memory is 16.1GB. * Witness Printer took 67.73ms. Allocated memory is still 302.0MB. Free memory was 139.9MB in the beginning and 134.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.5s, 373 PlacesBefore, 101 PlacesAfterwards, 390 TransitionsBefore, 100 TransitionsAfterwards, 24320 CoEnabledTransitionPairs, 8 FixpointIterations, 177 TrivialSequentialCompositions, 161 ConcurrentSequentialCompositions, 26 TrivialYvCompositions, 21 ConcurrentYvCompositions, 18 ChoiceCompositions, 403 TotalNumberOfCompositions, 77925 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28677, independent: 27668, independent conditional: 0, independent unconditional: 27668, dependent: 1009, dependent conditional: 0, dependent unconditional: 1009, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 12634, independent: 12542, independent conditional: 0, independent unconditional: 12542, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 28677, independent: 15126, independent conditional: 0, independent unconditional: 15126, dependent: 917, dependent conditional: 0, dependent unconditional: 917, unknown: 12634, unknown conditional: 0, unknown unconditional: 12634] , Statistics on independence cache: Total cache size (in pairs): 782, Positive cache size: 720, Positive conditional cache size: 0, Positive unconditional cache size: 720, Negative cache size: 62, Negative conditional cache size: 0, Negative unconditional cache size: 62, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 567 locations, 60 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 18.7s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1958 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1267 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 629 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3963 IncrementalHoareTripleChecker+Invalid, 4592 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 629 mSolverCounterUnsat, 29 mSDtfsCounter, 3963 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 87 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=9, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 322 NumberOfCodeBlocks, 314 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 1127 SizeOfPredicates, 2 NumberOfNonLiveVariables, 694 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 233/276 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 18:50:19,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE